Hi, im not sure if im in the right place with this. Im experienced in Java but extremely new to this hole App thing.
Im trying to like have a browser inside of my app, Display web pages. Im getting this error as far as I know This should work.
Code:
public class MainActivity extends Activity {
private static final String URL_TO_LOAD = "Link";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView wv = (WebView) findViewById(R.id.main_content);
loadResource(wv, URL_TO_LOAD);
}
private void loadResource(WebView wv, String resource) {
wv.loadUrl(resource);
wv.getSettings().setJavaScriptEnabled(true);
}
}
With this error:
Code:
02-25 19:23:46.404: E/AndroidRuntime(31416): FATAL EXCEPTION: main
02-25 19:23:46.404: E/AndroidRuntime(31416): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mepo/com.example.mepo.MainActivity}: java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to android.webkit.WebView
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2122)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.app.ActivityThread.access$600(ActivityThread.java:140)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1228)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.os.Handler.dispatchMessage(Handler.java:99)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.os.Looper.loop(Looper.java:137)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.app.ActivityThread.main(ActivityThread.java:4895)
02-25 19:23:46.404: E/AndroidRuntime(31416): at java.lang.reflect.Method.invokeNative(Native Method)
02-25 19:23:46.404: E/AndroidRuntime(31416): at java.lang.reflect.Method.invoke(Method.java:511)
02-25 19:23:46.404: E/AndroidRuntime(31416): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994)
02-25 19:23:46.404: E/AndroidRuntime(31416): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761)
02-25 19:23:46.404: E/AndroidRuntime(31416): at dalvik.system.NativeStart.main(Native Method)
02-25 19:23:46.404: E/AndroidRuntime(31416): Caused by: java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to android.webkit.WebView
02-25 19:23:46.404: E/AndroidRuntime(31416): at com.example.mepo.MainActivity.onCreate(MainActivity.java:20)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.app.Activity.performCreate(Activity.java:5163)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1094)
02-25 19:23:46.404: E/AndroidRuntime(31416): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2061)
02-25 19:23:46.404: E/AndroidRuntime(31416): ... 11 more
Please let me Know if this is in the wrong place.
You are using id of framelayout in webview.
Show your layout xml also
Sent from my GT-S5570 using XDA Premium 4 mobile app
Sure!
arpitkh96 said:
You are using id of framelayout in webview.
Show your layout xml also
Sent from my GT-S5570 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Am i not spouse to be?
XML:
Code:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="LINK WAS HERE"
android:id="@+id/fullscreen_custom_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FF000000">
<FrameLayout
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<WebView
android:id="@+id/webView"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</FrameLayout>
Check the xml.main_content id that you used to identify webview is for framelayout.
You have to replace main_content with webView in your java code.
Moreover your first framelayout never ends
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Related
Im trying to start a simple app and i need to display on a SurfaceView the preview of the cam as soon as the App start.
i added the permission to the manifest:
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
and my code:
Code:
import android.content.Context;
import android.hardware.Camera;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public class MainActivity extends SurfaceView implements SurfaceHolder.Callback{
SurfaceView mSurfaceView;
private SurfaceHolder mHolder;
public Camera camera = null;
public MainActivity(Context context) {
super(context);
mSurfaceView = (SurfaceView) findViewById(R.id.surfaceView);
mHolder = mSurfaceView.getHolder();
mHolder.addCallback(this);
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
[user=439709]@override[/user]
public void surfaceCreated(SurfaceHolder holder) {
camera = Camera.open();
try{
camera.setPreviewDisplay(mHolder);
} catch(Exception e){
}
}
[user=439709]@override[/user]
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Camera.Parameters params = camera.getParameters();
params.setPreviewSize(width,height);
camera.setParameters(params);
camera.startPreview();
}
[user=439709]@override[/user]
public void surfaceDestroyed(SurfaceHolder holder) {
camera.stopPreview();
camera = null;
}
}
Ive looked for many tutorial and all technically do the same or smiliart stuff. But the app crashes. I cant find a solution
LogCat
Code:
06-01 12:39:12.456 616-841/system_process I/ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.example.droidcam/.MainActivity bnds=[240,408][240,408]} from pid 861
06-01 12:39:12.596 616-841/system_process D/dalvikvm: GC_FOR_ALLOC freed 1352K, 16% free 11518K/13560K, paused 112ms, total 118ms
06-01 12:39:12.636 2744-2744/? D/dalvikvm: Late-enabling CheckJNI
06-01 12:39:12.646 616-881/system_process I/ActivityManager: Start proc com.example.droidcam for activity com.example.droidcam/.MainActivity: pid=2744 uid=10019 gids={50019, 1006, 1028}
06-01 12:39:12.746 2744-2744/com.example.droidcam E/Trace: error opening trace file: No such file or directory (2)
06-01 12:39:12.826 2744-2744/com.example.droidcam D/dalvikvm: newInstance failed: no <init>()
06-01 12:39:12.836 2744-2744/com.example.droidcam D/AndroidRuntime: Shutting down VM
06-01 12:39:12.836 2744-2744/com.example.droidcam W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x2b5d9930)
06-01 12:39:12.836 2744-2744/com.example.droidcam E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.droidcam/com.example.droidcam.MainActivity}: java.lang.InstantiationException: can't instantiate class com.example.droidcam.MainActivity; no empty constructor
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2223)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2357)
at android.app.ActivityThread.access$600(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1247)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5226)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.InstantiationException: can't instantiate class com.example.droidcam.MainActivity; no empty constructor
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1319)
at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2214)
... 11 more
06-01 12:39:12.836 616-1341/system_process W/ActivityManager: Force finishing activity com.example.droidcam/.MainActivity
06-01 12:39:12.986 616-650/system_process D/dalvikvm: GC_FOR_ALLOC freed 1696K, 24% free 10472K/13772K, paused 76ms, total 77ms
06-01 12:39:13.387 616-647/system_process W/ActivityManager: Activity pause timeout for ActivityRecord{2bd8aff0 u0 com.example.droidcam/.MainActivity}
06-01 12:39:18.952 2744-2744/? I/Process: Sending signal. PID: 2744 SIG: 9
06-01 12:39:18.952 616-943/system_process I/ActivityManager: Process com.example.droidcam (pid 2744) has died.
06-01 12:39:19.002 616-616/system_process W/InputMethodManagerService: Window already focused, ignoring focus gain of: [email protected] attribute=null, token = [email protected]
Please put your code into code tags.
EDIT: Thanks.
and Post/check logcats.
just saying it crashes is too vague.
out of ideas said:
and Post/check logcats.
just saying it crashes is too vague.
Click to expand...
Click to collapse
On Eclipse i know how to show the windows of the LogCat, but cant really find it here on Android Studio.
Im a bit newby about this sorry, coming from PHP using just Notepad.
Guess i found it, added log cat
I saw some tutorial like this, im not sure why it doesnt start.
Is it for te onCreate method missing? but i saw that for other works anyway like this
Btw i've also triyed an other way, but stills give me errors. i could upload that one too, different logcat.
Hope one of the two could be solved
Code:
import android.app.Activity;
import android.hardware.Camera;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import java.io.IOException;
public class MainActivity extends Activity implements SurfaceHolder.Callback{
/* VARIABILI PRIVATE */
private SurfaceView mSurfaceView;
private SurfaceHolder mSurfaceHolder;
private Camera mCamera;
/** Called when the activity is first created. */
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mSurfaceView = (SurfaceView)findViewById(R.id.surfaceView);
mSurfaceHolder = mSurfaceView.getHolder();
mSurfaceHolder.addCallback(this);
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}
[user=439709]@override[/user]
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
Camera.Parameters params = mCamera.getParameters();
params.setPreviewSize(arg2, arg3);
mCamera.setParameters(params);
try {
//lancio la preview
mCamera.setPreviewDisplay(arg0);
mCamera.startPreview();
} catch (IOException e) {
//gestione errore
}
}
[user=439709]@override[/user]
public void surfaceCreated(SurfaceHolder holder) {
mCamera = Camera.open();
}
[user=439709]@override[/user]
public void surfaceDestroyed(SurfaceHolder holder) {
mCamera.stopPreview();
mCamera.release();
}
logcat
Code:
06-01 13:32:31.187 616-661/system_process I/ActivityManager: Start proc com.android.vending for service com.android.vending/com.google.android.finsky.services.ContentSyncService: pid=25552 uid=10005 gids={50005, 3003, 1015, 1028}
06-01 13:32:31.227 25552-25552/com.android.vending E/Trace: error opening trace file: No such file or directory (2)
06-01 13:32:31.387 616-841/system_process I/ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.example.droidcam/.MainActivity bnds=[240,408][240,408]} from pid 861
06-01 13:32:31.437 25566-25566/? D/dalvikvm: Late-enabling CheckJNI
06-01 13:32:31.447 616-1341/system_process I/ActivityManager: Start proc com.example.droidcam for activity com.example.droidcam/.MainActivity: pid=25566 uid=10019 gids={50019, 1006, 1028}
06-01 13:32:31.607 25566-25566/com.example.droidcam E/Trace: error opening trace file: No such file or directory (2)
06-01 13:32:31.787 25552-25552/com.android.vending D/Finsky: [1] FinskyApp.onCreate: Initializing network with DFE https://android.clients.google.com/fdfe/
06-01 13:32:31.987 25552-25552/com.android.vending D/Finsky: [1] DailyHygiene.goMakeHygieneIfDirty: No need to run daily hygiene.
06-01 13:32:32.037 25552-25552/com.android.vending W/Settings: Setting download_manager_max_bytes_over_mobile has moved from android.provider.Settings.Secure to android.provider.Settings.Global.
06-01 13:32:32.037 25552-25552/com.android.vending W/Settings: Setting download_manager_recommended_max_bytes_over_mobile has moved from android.provider.Settings.Secure to android.provider.Settings.Global.
06-01 13:32:32.178 616-881/system_process D/dalvikvm: GC_FOR_ALLOC freed 656K, 26% free 11321K/15124K, paused 82ms, total 86ms
06-01 13:32:32.238 25566-25566/com.example.droidcam D/libEGL: loaded /system/lib/egl/libEGL_adreno200.so
06-01 13:32:32.258 25566-25566/com.example.droidcam D/libEGL: loaded /system/lib/egl/libGLESv1_CM_adreno200.so
06-01 13:32:32.258 25566-25566/com.example.droidcam D/libEGL: loaded /system/lib/egl/libGLESv2_adreno200.so
06-01 13:32:32.268 25566-25566/com.example.droidcam I/Adreno200-EGL: <qeglDrvAPI_eglInitialize:294>: EGL 1.4 QUALCOMM build: AU_LINUX_ANDROID_JB.04.01.01.00.036_msm8960_JB_CL2644550_release_AU (CL2644550)
Build Date: 07/31/12 Tue
Local Branch:
Remote Branch: quic/master
Local Patches: NONE
Reconstruct Branch: AU_LINUX_ANDROID_JB.04.01.01.00.036 + NOTHING
06-01 13:32:32.318 25566-25566/com.example.droidcam D/OpenGLRenderer: Enabling debug mode 0
06-01 13:32:32.348 256-515/? I/AwesomePlayer: setDataSource_l(URL suppressed)
06-01 13:32:32.378 256-25622/? D/MediaExtractor: returning default extractor
06-01 13:32:32.388 256-515/? I/AwesomePlayer: setDataSource_l(URL suppressed)
06-01 13:32:32.408 256-25626/? D/MediaExtractor: returning default extractor
06-01 13:32:32.408 256-515/? I/CameraClient: Opening camera 0
06-01 13:32:32.408 256-515/? W/ServiceManager: Permission failure: com.sonyericsson.permission.CAMERA_EXTENDED from uid=10019 pid=25566
06-01 13:32:32.438 256-25630/? I/caladbolg: 3348999538 cald_camctrl.c (6713) 25630 P [SVR] -945967758 + Cald_CamCtrl_PowerUp
06-01 13:32:32.438 256-25630/? I/caladbolg: 3348999630 cald_camctrl.c (7484) 25630 P [SVR] -945967666 + Cald_CamCtrl_FSM_Func_PowerUp
06-01 13:32:32.438 256-25630/? I/caladbolg: 3349003170 cald_hal_qct.c (2789) 25630 P [HAL] -945964126 + Cald_Hal_Qct_If_PowerUp
06-01 13:32:32.438 256-25630/? I/caladbolg: 3349003323 cald_hal_qct.c (2847) 25630 P [HAL] -945963973 - Cald_Hal_Qct_If_PowerUp (0)
06-01 13:32:32.438 256-25630/? I/caladbolg: 3349004665 cald_camctrl.c (7563) 25630 P [SVR] -945962631 - Cald_CamCtrl_FSM_Func_PowerUp (0)
06-01 13:32:32.438 256-25630/? I/caladbolg: 3349004726 cald_camctrl.c (6720) 25630 P [SVR] -945962570 - Cald_CamCtrl_PowerUp (0)
06-01 13:32:32.448 256-25630/? E/caladbolg: 3349014431 cald_camctrl.c (11888) 25630 E [SVR] PreviewSize Invalid param: value[402x527]
06-01 13:32:32.458 25566-25566/com.example.droidcam D/AndroidRuntime: Shutting down VM
06-01 13:32:32.458 25566-25566/com.example.droidcam W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x2b5d9930)
06-01 13:32:32.488 25566-25566/com.example.droidcam E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.RuntimeException: setParameters failed
at android.hardware.Camera.native_setParameters(Native Method)
at android.hardware.Camera.setParameters(Camera.java:1496)
at com.example.droidcam.MainActivity.surfaceChanged(MainActivity.java:41)
at android.view.SurfaceView.updateWindow(SurfaceView.java:580)
at android.view.SurfaceView.access$000(SurfaceView.java:86)
at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:174)
at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:680)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1842)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:989)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4351)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:532)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5226)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
at dalvik.system.NativeStart.main(Native Method)
06-01 13:32:32.498 616-943/system_process W/ActivityManager: Force finishing activity com.example.droidcam/.MainActivity
06-01 13:32:32.688 25552-25552/com.android.vending D/Finsky: [1] 2.run: Loaded library for account: [i1YaFxIWaZrcOQ26zxNX5K0RvvY]
06-01 13:32:32.688 25552-25552/com.android.vending D/Finsky: [1] 2.run: Finished loading 1 libraries.
06-01 13:32:32.908 25552-25552/com.android.vending D/Finsky: [1] 5.onFinished: Installation state replication succeeded.
06-01 13:32:33.018 616-647/system_process W/ActivityManager: Activity pause timeout for ActivityRecord{2b946870 u0 com.example.droidcam/.MainActivity}
In Android you normally do not use the constructor of an Activity for anything.
Use the onCreate method instead.
EDIT: The log says that the constructor must be empty.
nikwen said:
In Android you normally do not use the constructor of an Activity for anything.
Use the onCreate method instead.
EDIT: The log says that the constructor must be empty.
Click to expand...
Click to collapse
I thought about that (even if i saw video tutorial doing it) so i tried wht onCreate method and now it seams to give problem with the setParameters?
Ive uploaded the new code and logcats before
Ah. Check this: http://stackoverflow.com/questions/3890381/camera-setparameters-failed-in-android
nikwen said:
Ah. Check this: http://stackoverflow.com/questions/3890381/camera-setparameters-failed-in-android
Click to expand...
Click to collapse
i tryed that at th beggin, and didnt work, in fact i tried it again and still give me the same error apparently
While I'm still learning myself, it looks like you are getting a failed camera permission. And then it tries to pass in an invalid parameter to the camera.
deniel said:
I/CameraClient: Opening camera 0
06-01 13:32:32.408 256-515/? W/ServiceManager: Permission failure: com.sonyericsson.permission.CAMERA_EXTENDED from uid=10019 pid=25566
06-01 13:32:32.448 256-25630/? E/caladbolg: 3349014431 cald_camctrl.c (11888) 25630 E [SVR] PreviewSize Invalid param: value[402x527]
[/CODE]
Click to expand...
Click to collapse
Sent from a Toasted Devil
netwokz said:
While I'm still learning myself, it looks like you are getting a failed camera permission. And then it tries to pass in an invalid parameter to the camera.
Sent from a Toasted Devil
Click to expand...
Click to collapse
But cant understand which one and how should i do. it ryed the 2 ways everybody does
What phone are you trying this on? Have you tried it in an emulator?
After getting home and I was able to try your second piece of code. It looks like it is a problem with <CODE>params.setPreviewSize(arg2, arg3);</CODE>, it doesn't like the width and height arguments. I found THIS(second answer). and after plugging it into your code it was working for me. If you like I can show you the modified code, altho its real easy to plug in.
netwokz said:
After getting home and I was able to try your second piece of code. It looks like it is a problem with <CODE>params.setPreviewSize(arg2, arg3);</CODE>, it doesn't like the width and height arguments. I found THIS(second answer). and after plugging it into your code it was working for me. If you like I can show you the modified code, altho its real easy to plug in.
Click to expand...
Click to collapse
i tryed his first example and finally i get his "distoted" image. When i'll have time ill try the rets thnk u very much
ill try this:
Code:
Camera.Size getBestPreviewSize(int width, int height, Camera.Parameters parameters) {
Camera.Size result=null;
float dr = Float.MAX_VALUE;
float ratio = (float)width/(float)height;
for (Camera.Size size : parameters.getSupportedPreviewSizes()) {
float r = (float)size.width/(float)size.height;
if( Math.abs(r - ratio) < dr && size.width <= width && size.height <= height ) {
dr = Math.abs(r - ratio);
result = size;
}
}
return result;
}
Code:
ublic void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
// Now that the size is known, set up the camera parameters and begin
// the preview.
if (isPreviewRunning) {
mCamera.stopPreview();
}
Camera.Parameters parameters = mCamera.getParameters();
List<Size> sizes = parameters.getSupportedPreviewSizes();
Size optimalSize = getBestPreviewSize( w, h, parameters);
parameters.setPreviewSize(optimalSize.width, optimalSize.height);
mCamera.setParameters(parameters);
mCamera.startPreview();
isPreviewRunning =true;
}
im not sure abot the 3rd parameter of the getBestPreviewSize method which one is it. Like this is still distorted
Yeah, I could never fix the distortion back when I was trying my camera app. But I think I will tinker with it again. Keep this updated if you find anything, I will also.
Sent from a Toasted Devil
Guys,I am trying to integrate admob SDK in my app from the past 3 hours and have no luck.
I have added the jar libraries ( build path), included in build paths, everything is good there.
main activity :
Code:
// Create the adView
adView = new AdView(this, AdSize.BANNER, MY_AD_UNIT_ID);
// Lookup your LinearLayout assuming it's been given
// the attribute android:id="@+id/mainLayout"
RelativeLayout layout = (RelativeLayout)findViewById(R.id.ad);
// Add the adView to it
layout.addView(adView);
// Initiate a generic request to load it with an ad
adView.loadAd(new AdRequest());
layout
Code:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:id="@+id/mainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<com.google.ads.AdView
android:id="@+id/ad"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
ads:adSize="BANNER"
ads:adUnitId="a15XZXXXXX3"
ads:loadAdOnCreate="true" />
everything loaded on the manifest file as well!
LOGCAT :
Code:
07-09 15:33:20.362: D/dalvikvm(12621): GC_CONCURRENT freed 188K, 3% free 8916K/9132K, paused 5ms+8ms, total 46ms
07-09 15:33:20.362: E/AndroidRuntime(12621): FATAL EXCEPTION: main
07-09 15:33:20.362: E/AndroidRuntime(12621): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.PACKAGE/com.PACKAGE.MainActivity}: java.lang.NullPointerException
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.access$600(ActivityThread.java:141)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.os.Handler.dispatchMessage(Handler.java:99)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.os.Looper.loop(Looper.java:137)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.main(ActivityThread.java:5041)
07-09 15:33:20.362: E/AndroidRuntime(12621): at java.lang.reflect.Method.invokeNative(Native Method)
07-09 15:33:20.362: E/AndroidRuntime(12621): at java.lang.reflect.Method.invoke(Method.java:511)
07-09 15:33:20.362: E/AndroidRuntime(12621): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
07-09 15:33:20.362: E/AndroidRuntime(12621): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
07-09 15:33:20.362: E/AndroidRuntime(12621): at dalvik.system.NativeStart.main(Native Method)
07-09 15:33:20.362: E/AndroidRuntime(12621): Caused by: java.lang.NullPointerException
07-09 15:33:20.362: E/AndroidRuntime(12621): at com.PACKAGE.MainActivity.onCreate(MainActivity.java:42)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.Activity.performCreate(Activity.java:5104)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
07-09 15:33:20.362: E/AndroidRuntime(12621): ... 11 more
07-09 15:33:22.877: I/Process(12621): Sending signal. PID: 12621 SIG: 9
chintz24 said:
Guys,I am trying to integrate admob SDK in my app from the past 3 hours and have no luck.
07-09 15:33:20.362: E/AndroidRuntime(12621): Caused by: java.lang.NullPointerException
07-09 15:33:20.362: E/AndroidRuntime(12621): at com.PACKAGE.MainActivity.onCreate(MainActivity.java:42)
Click to expand...
Click to collapse
says there, line 42, your asking "NULL" to do something! No idea what is on line 42, but would assume it's your ad view, so maybe your loading the wrong layout ? or even attempting to findViewById before setContentView() ? Would need more info/code
deanwray said:
says there, line 42, your asking "NULL" to do something! No idea what is on line 42, but would assume it's your ad view, so maybe your loading the wrong layout ? or even attempting to findViewById before setContentView() ? Would need more info/code
Click to expand...
Click to collapse
or even attempting to findViewById before setContentView()
This is what I was doing.
Thanks a lot.
Also does it take time to load ads?
because I dont see anything. Not even blank "ads by google"
chintz24 said:
or even attempting to findViewById before setContentView()
This is what I was doing.
Thanks a lot.
Also does it take time to load ads?
because I dont see anything. Not even blank "ads by google"
Click to expand...
Click to collapse
No idea, not used ads yet
Code:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:id="@+id/mainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<com.google.ads.AdView
android:id="@+id/ad"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
ads:adSize="BANNER"
ads:adUnitId="aXXXXXXXXXXX"
ads:loadAdOnCreate="true" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
<WebView
android:id="@+id/webView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentLeft="true" />
<ProgressBar
android:id="@+id/progressBar1"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:minHeight="1dip" />
</RelativeLayout>
This is my layout.xml
Thanks, its sorted, I didnt have any container for my ads. Done now
chintz24 said:
Guys,I am trying to integrate admob SDK in my app from the past 3 hours and have no luck.
I have added the jar libraries ( build path), included in build paths, everything is good there.
main activity :
Code:
// Create the adView
adView = new AdView(this, AdSize.BANNER, MY_AD_UNIT_ID);
// Lookup your LinearLayout assuming it's been given
// the attribute android:id="@+id/mainLayout"
RelativeLayout layout = (RelativeLayout)findViewById(R.id.ad);
// Add the adView to it
layout.addView(adView);
// Initiate a generic request to load it with an ad
adView.loadAd(new AdRequest());
layout
Code:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:ads="http://schemas.android.com/apk/lib/com.google.ads"
android:id="@+id/mainLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<com.google.ads.AdView
android:id="@+id/ad"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
ads:adSize="BANNER"
ads:adUnitId="a15XZXXXXX3"
ads:loadAdOnCreate="true" />
everything loaded on the manifest file as well!
LOGCAT :
Code:
07-09 15:33:20.362: D/dalvikvm(12621): GC_CONCURRENT freed 188K, 3% free 8916K/9132K, paused 5ms+8ms, total 46ms
07-09 15:33:20.362: E/AndroidRuntime(12621): FATAL EXCEPTION: main
07-09 15:33:20.362: E/AndroidRuntime(12621): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.PACKAGE/com.PACKAGE.MainActivity}: java.lang.NullPointerException
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.access$600(ActivityThread.java:141)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.os.Handler.dispatchMessage(Handler.java:99)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.os.Looper.loop(Looper.java:137)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.main(ActivityThread.java:5041)
07-09 15:33:20.362: E/AndroidRuntime(12621): at java.lang.reflect.Method.invokeNative(Native Method)
07-09 15:33:20.362: E/AndroidRuntime(12621): at java.lang.reflect.Method.invoke(Method.java:511)
07-09 15:33:20.362: E/AndroidRuntime(12621): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
07-09 15:33:20.362: E/AndroidRuntime(12621): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
07-09 15:33:20.362: E/AndroidRuntime(12621): at dalvik.system.NativeStart.main(Native Method)
07-09 15:33:20.362: E/AndroidRuntime(12621): Caused by: java.lang.NullPointerException
07-09 15:33:20.362: E/AndroidRuntime(12621): at com.PACKAGE.MainActivity.onCreate(MainActivity.java:42)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.Activity.performCreate(Activity.java:5104)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
07-09 15:33:20.362: E/AndroidRuntime(12621): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
07-09 15:33:20.362: E/AndroidRuntime(12621): ... 11 more
07-09 15:33:22.877: I/Process(12621): Sending signal. PID: 12621 SIG: 9
Click to expand...
Click to collapse
Hi,
You are mixing the two solutions for integration of admob banners (XML and code). The coding solution assumes that you have a layout that you want to populate with ads (useful when using different ad networks). In your case you define the admob banner in the XML so you don't need to call it at all in the code, If you think to set a listener (to do something when admob failed to show ads) in this case you can call and set your ad listener (that you implement on the activity) this way:
AdView adView = (AdView)findViewById(R.id.ad);
adView.setAdListener (this);
adView.loadAd(new AdRequest());
Hope this will help
Hello there,
I am trying to learn android application development through one of the online tutorials .I am stuck at a point and since,both java and android are new for me I can't figure out how to get out of it.Here's the code to my Startingpoint.java:
Code:
public class Startingpoint extends Activity {
int counter;
Button add,sub;
TextView display;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
counter=0;
add=(Button)findViewById(R.id.bAdd);
sub=(Button)findViewById(R.id.bSub);
display=(TextView)findViewById(R.id.display);
add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
counter++;
display.setText("Your total is " + counter);
}
});
sub.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
counter--;
display.setText("Your total is" + counter);
}
});
}
}
The following are the contents within the LineaLlayout in my main.xml file:
Code:
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/result"
android:textSize="25sp"
android:layout_gravity="fill_horizontal"
android:gravity="center"
android:id="@+id/display"
/>
<Button
android:layout_width="250dp"
android:layout_height="wrap_content"
android:text="@string/bAdd"
android:layout_gravity="center"
android:gravity="center"
android:id="@+id/bAdd"
/>
<Button
android:layout_width="250dp"
android:layout_height="wrap_content"
android:text="@string/bSub"
android:layout_gravity="center"
android:gravity="center"
android:id="@+id/bSub"
/>
And this is what the logcat has to say :
Code:
02-13 11:44:12.076: D/AndroidRuntime(2026): Shutting down VM
02-13 11:44:12.076: W/dalvikvm(2026): threadid=1: thread exiting with uncaught exception (group=0xb2d5bb08)
02-13 11:44:12.156: E/AndroidRuntime(2026): FATAL EXCEPTION: main
02-13 11:44:12.156: E/AndroidRuntime(2026): Process: com.thenewboston.rohit, PID: 2026
02-13 11:44:12.156: E/AndroidRuntime(2026): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.thenewboston.rohit/com.thenewboston.rohit.Startingpoint}: java.lang.NullPointerException
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2176)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2226)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.app.ActivityThread.access$700(ActivityThread.java:135)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1397)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.os.Handler.dispatchMessage(Handler.java:102)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.os.Looper.loop(Looper.java:137)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.app.ActivityThread.main(ActivityThread.java:4998)
02-13 11:44:12.156: E/AndroidRuntime(2026): at java.lang.reflect.Method.invokeNative(Native Method)
02-13 11:44:12.156: E/AndroidRuntime(2026): at java.lang.reflect.Method.invoke(Method.java:515)
02-13 11:44:12.156: E/AndroidRuntime(2026): atcom.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
02-13 11:44:12.156: E/AndroidRuntime(2026): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
02-13 11:44:12.156: E/AndroidRuntime(2026): at dalvik.system.NativeStart.main(Native Method)
02-13 11:44:12.156: E/AndroidRuntime(2026): Caused by: java.lang.NullPointerException
02-13 11:44:12.156: E/AndroidRuntime(2026): at com.thenewboston.rohit.Startingpoint.onCreate(Startingpoint.java:21)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.app.Activity.performCreate(Activity.java:5243)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
02-13 11:44:12.156: E/AndroidRuntime(2026): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2140)
02-13 11:44:12.156: E/AndroidRuntime(2026): ... 11 more
Being inexperienced in java , I could not figure out what's wrong with the code.May be the exception is due to my add,sub and display being null but I am not sure.Please help me figure out what's wrong with my code and how to deal with it.
Any help is greatly appreciated.
Well, you can find the line where it crashes in the logcat:
Code:
02-13 11:44:12.156: E/AndroidRuntime(2026): Caused by: java.lang.NullPointerException
02-13 11:44:12.156: E/AndroidRuntime(2026): at com.thenewboston.rohit.Startingpoint.onCreate([B]Startingpoint.java:21[/B])
It's line 21. Which one is that?
Have a look at my debugging tutorial here as well, mainly the part on understanding the logcat. It will probably be very helpful and save much time: http://forum.xda-developers.com/showthread.php?t=2325164
nikwen said:
Well, you can find the line where it crashes in the logcat:
Code:
02-13 11:44:12.156: E/AndroidRuntime(2026): Caused by: java.lang.NullPointerException
02-13 11:44:12.156: E/AndroidRuntime(2026): at com.thenewboston.rohit.Startingpoint.onCreate([B]Startingpoint.java:21[/B])
It's line 21. Which one is that?
Have a look at my debugging tutorial here as well, mainly the part on understanding the logcat. It will probably be very helpful and save much time: http://forum.xda-developers.com/showthread.php?t=2325164
Click to expand...
Click to collapse
I bet they must be the findViewById(int id);
as much i trust my counting skills line 21 is calling for one the views
i still remeber the first NPE when i started android
Sent from my GT-S5302 using Tapatalk 2
I am sorry , I should have mentioned it.
Line 21 -> add.setOnClickListener(new View.OnClickListener()
DarkMethod said:
I am sorry , I should have mentioned it.
Line 21 -> add.setOnClickListener(new View.OnClickListener()
Click to expand...
Click to collapse
It means the.view with id bAdd was not found make sure have declared it in your layout
Sent from my GT-S5302 using Tapatalk 2
I have declared the ids for each view as you can see in the layout.xml attached.This NPE is turning out to be quite frustrating now.
DarkMethod said:
I have declared the ids for each view as you can see in the layout.xml attached.This NPE is turning out to be quite frustrating now.
Click to expand...
Click to collapse
do one thing
add a breakpoint to each line
then debug your app if on Eclipse or Android Studio !
and watch the control flow through each line this should narrow you down to the root cause.
Sent from my GT-S5302 using Tapatalk 2
sak-venom1997 said:
do one thing
add a breakpoint to each line
then debug your app if on Eclipse or Android Studio !
and watch the control flow through each line this should narrow you down to the root cause.
Sent from my GT-S5302 using Tapatalk 2
Click to expand...
Click to collapse
More on that here as well: http://forum.xda-developers.com/showthread.php?t=2325164
nikwen said:
More on that here as well: http://forum.xda-developers.com/showthread.php?t=2325164
Click to expand...
Click to collapse
indeed a great one :thumbup:
Sent from my GT-S5302 using Tapatalk 2
sak-venom1997 said:
indeed a great one :thumbup:
Sent from my GT-S5302 using Tapatalk 2
Click to expand...
Click to collapse
Thanks.
I am getting a NullPointerException after the build but once my phone tries to launch the app. I do not understand where the problem is. Im just learning to code and this app is simply supposed to make a toast pop up Long if the checkbox is clicked and short if it isnt.
Code:
package universaltruth.toastee;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends ActionBarActivity {
public CheckBox longToast = (CheckBox) findViewById(R.id.checkbox);
public EditText editText = (EditText) findViewById(R.id.toastText);
public int toastLength = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnlongToast();
}
public void addListenerOnlongToast(){
longToast.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
if(((CheckBox) view).isChecked()){
toastLength = '1';
}
}
});
}
public void toastMessage(View view){
String message = editText.getText().toString();
Toast.makeText(getApplicationContext(),message, (toastLength == 0) ? Toast.LENGTH_SHORT : Toast.LENGTH_LONG).show();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
LogCat:
02-08 12:48:34.718 6684-6684/universaltruth.toastee D/AndroidRuntime﹕ Shutting down VM
02-08 12:48:34.718 6684-6684/universaltruth.toastee W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x4191bda0)
02-08 12:48:34.718 6684-6684/universaltruth.toastee E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: universaltruth.toastee, PID: 6684
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{universaltruth.toastee/universaltruth.toastee.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2408)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.access$900(ActivityThread.java:174)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5748)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:132)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at android.app.Activity.findViewById(Activity.java:2014)
at universaltruth.toastee.MainActivity.<init>(MainActivity.java:19)
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1208)
at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2399)
************at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2599)
************at android.app.ActivityThread.access$900(ActivityThread.java:174)
************at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
************at android.os.Handler.dispatchMessage(Handler.java:102)
************at android.os.Looper.loop(Looper.java:146)
************at android.app.ActivityThread.main(ActivityThread.java:5748)
************at java.lang.reflect.Method.invokeNative(Native Method)
************at java.lang.reflect.Method.invoke(Method.java:515)
************at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
************at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
************at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:132)
************at dalvik.system.NativeStart.main(Native Method)
02-08 13:00:50.672 9121-9121/universaltruth.toastee I/SELinux﹕ Function: selinux_android_load_priority , priority [3] , priority version is VE=SEPF_SM-N910F_4.4.4_A024
02-08 13:00:50.672 9121-9121/universaltruth.toastee E/SELinux﹕ [DEBUG] get_category: variable seinfocat: default sensitivity: NULL, cateogry: NULL
02-08 13:00:50.672 9121-9121/universaltruth.toastee E/dalvikvm﹕ >>>>> Normal User
02-08 13:00:50.672 9121-9121/universaltruth.toastee E/dalvikvm﹕ >>>>> universaltruth.toastee [ userId:0 | appId:10384 ]
02-08 13:00:50.682 9121-9121/universaltruth.toastee E/SELinux﹕ [DEBUG] get_category: variable seinfocat: default sensitivity: NULL, cateogry: NULL
02-08 13:00:50.682 9121-9121/universaltruth.toastee D/dalvikvm﹕ Late-enabling CheckJNI
02-08 13:00:50.682 9121-9121/universaltruth.toastee I/libpersona﹕ KNOX_SDCARD checking this for 10384
02-08 13:00:50.682 9121-9121/universaltruth.toastee I/libpersona﹕ KNOX_SDCARD not a persona
02-08 13:00:50.752 9121-9121/universaltruth.toastee D/TimaKeyStoreProvider﹕ in addTimaSignatureService
02-08 13:00:50.762 9121-9121/universaltruth.toastee D/TimaKeyStoreProvider﹕ Cannot add TimaSignature Service, License check Failed
02-08 13:00:50.762 9121-9121/universaltruth.toastee D/ActivityThread﹕ Added TimaKesytore provider
02-08 13:00:50.922 9121-9121/universaltruth.toastee D/AndroidRuntime﹕ Shutting down VM
02-08 13:00:50.922 9121-9121/universaltruth.toastee W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x4191bda0)
02-08 13:00:50.922 9121-9121/universaltruth.toastee E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: universaltruth.toastee, PID: 9121
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{universaltruth.toastee/universaltruth.toastee.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2408)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.access$900(ActivityThread.java:174)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:146)
at android.app.ActivityThread.main(ActivityThread.java:5748)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:132)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at android.app.Activity.findViewById(Activity.java:2014)
at universaltruth.toastee.MainActivity.<init>(MainActivity.java:16)
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1208)
at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2399)
************at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2599)
************at android.app.ActivityThread.access$900(ActivityThread.java:174)
************at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321)
************at android.os.Handler.dispatchMessage(Handler.java:102)
************at android.os.Looper.loop(Looper.java:146)
************at android.app.ActivityThread.main(ActivityThread.java:5748)
************at java.lang.reflect.Method.invokeNative(Native Method)
************at java.lang.reflect.Method.invoke(Method.java:515)
************at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)
************at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)
************at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:132)
************at dalvik.system.NativeStart.main(Native Method)
02-08 13:00:55.232 9121-9121/universaltruth.toastee I/Process﹕ Sending signal. PID: 9121 SIG: 9
Forgive me if I am not posting this correctly. This is my first time. I am open to any and all feedback. Thank you.
Your problem is that you initialize the longToast checkbox outside of a method. But findViewById only returns a result if called after a call to setContentView(...), which is done in onCreate. So: put your initialization code into onCreate, after setContentView and it will work fine
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Phone: Nexus 4
OS: rooted Lollipop LRX21T
Bootloader: unlocked
Recovery: TWRP 2.8.2.0
Masrepus said:
Your problem is that you initialize the longToast checkbox outside of a method. But findViewById only returns a result if called after a call to setContentView(...), which is done in onCreate. So: put your initialization code into onCreate, after setContentView and it will work fine
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Hey Masrepus,
Thanks a bunch for answering me.
I have moved the initializations to the on create after the setContentView. I am still getting the null pointer exception. Do you have any further advice?
UniversalTruth said:
Hey Masrepus,
Thanks a bunch for answering me.
I have moved the initializations to the on create after the setContentView. I am still getting the null pointer exception. Do you have any further advice?
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Click to collapse
Can you edit the first post with the new code (and new logcat)?
Yes, grab a new log and post it on pastebin
Then link the log from here
My app keeps crashing when I try to start this activity. It is the Kit Kat easter egg. here is the code:
Code:
public void onClick(View view) {
Toast.makeText(getApplicationContext(), "Bon Appetit!",
Toast.LENGTH_LONG).show();
Intent dessert = new Intent("com.android.systemui.DessertCase");
startActivity(dessert);
}
here is the logcat:
04-06 22:57:26.607 31168-31168/com.jonanomisk.dessert E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.jonanomisk.dessert, PID: 31168
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:4007)
at android.view.View.performClick(View.java:4756)
at android.view.View$PerformClick.run(View.java:19748)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.view.View$1.onClick(View.java:4002)
************at android.view.View.performClick(View.java:4756)
************at android.view.View$PerformClick.run(View.java:19748)
************at android.os.Handler.handleCallback(Handler.java:739)
************at android.os.Handler.dispatchMessage(Handler.java:95)
************at android.os.Looper.loop(Looper.java:135)
************at android.app.ActivityThread.main(ActivityThread.java:5254)
************at java.lang.reflect.Method.invoke(Native Method)
************at java.lang.reflect.Method.invoke(Method.java:372)
************at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
************at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
Caused by: android.content.ActivityNotFoundException: No Activity found to handle Intent { act=com.android.systemui.DessertCase }
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1765)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1485)
at android.app.Activity.startActivityForResult(Activity.java:3736)
at android.app.Activity.startActivityForResult(Activity.java:3697)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:817)
at android.app.Activity.startActivity(Activity.java:4007)
at android.app.Activity.startActivity(Activity.java:3975)
at com.jonanomisk.dessert.MainActivity.onClick(MainActivity.java:50)
************at java.lang.reflect.Method.invoke(Native Method)
************at java.lang.reflect.Method.invoke(Method.java:372)
************at android.view.View$1.onClick(View.java:4002)
************at android.view.View.performClick(View.java:4756)
************at android.view.View$PerformClick.run(View.java:19748)
************at android.os.Handler.handleCallback(Handler.java:739)
************at android.os.Handler.dispatchMessage(Handler.java:95)
************at android.os.Looper.loop(Looper.java:135)
************at android.app.ActivityThread.main(ActivityThread.java:5254)
************at java.lang.reflect.Method.invoke(Native Method)
************at java.lang.reflect.Method.invoke(Method.java:372)
************at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
************at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
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Thanks!
JonanomisK said:
My app keeps crashing when I try to start this activity. It is the Kit Kat easter egg. here is the code:
Code:
public void onClick(View view) {
Toast.makeText(getApplicationContext(), "Bon Appetit!",
Toast.LENGTH_LONG).show();
Intent dessert = new Intent("com.android.systemui.DessertCase");
startActivity(dessert);
}
here is the logcat:
Thanks!
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Click to collapse
Code:
at com.jonanomisk.dessert.MainActivity.onClick(MainActivity.java:50)
Line 50 is causing the issues - not sure which line it is but I can see a problem in your intent line. Try the below code:
Code:
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.android.systemui", "com.android.systemui.DessertCase");
startActivity(intent);
Jonny said:
Code:
at com.jonanomisk.dessert.MainActivity.onClick(MainActivity.java:50)
Line 50 is causing the issues - not sure which line it is but I can see a problem in your intent line. Try the below code:
Code:
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.android.systemui", "com.android.systemui.DessertCase");
startActivity(intent);
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Thanks man that worked great!
JonanomisK said:
Thanks man that worked great!
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Hoped it would - your problem was that you need to pass a context to the intent - usually for starting activities within your own app you can use "this" as the context - so it would be:
Code:
new Intent(this, "SomeActivity.class");
But the package that the easter egg is under is com.android.systemui so that's what you have to set the class name using that as the context:
Code:
intent.setClassName("com.android.systemui", "com.android.systemui.DessertCase");