WebView Activity crashes on missing Chrome package - java

My app has been working fine for several years on the Play Store.
The main activity's layout XML contains a WebView.
Recently, the app has begun to crash at launch time (but not always, and not on every device).
The Logcat shows a RuntimeException on WebViewFactory about Package not found: com.android.chrome.
I don't explicitly use this system class. The crash occurs whether the WebView is part of the XML layout, or instantiated programmatically. No try/catch will help.
06-26 18:22:52.560 1363 1409 I ActivityManager: Displayed com.my.app/.MyActivity: +46ms
06-26 18:22:52.829 1363 6524 D ActivityManager: # addPackageDependency # packageName=com.android.chrome -> proc: ProcessRecord{e72ceb3 9789:com.my.app/u0a214}
06-26 18:22:52.839 9789 9789 I WebViewFactory: Loading com.android.chrome version 75.0.3770.101 (code 377010137)
--------- beginning of crash
06-26 18:22:52.903 9789 10122 E AndroidRuntime: FATAL EXCEPTION: Thread-2
06-26 18:22:52.903 9789 10122 E AndroidRuntime: Process: com.my.app, PID: 9789
06-26 18:22:52.903 9789 10122 E AndroidRuntime: java.lang.RuntimeException: Package not found: com.android.chrome
06-26 18:22:52.903 9789 10122 E AndroidRuntime: at android.webkit.WebViewDelegate.getPackageId(WebViewDelegate.java:164)
06-26 18:22:52.903 9789 10122 E AndroidRuntime: at xZ.a(PG:16)
06-26 18:22:52.903 9789 10122 E AndroidRuntime: at xq.run(PG:14)
06-26 18:22:52.903 9789 10122 E AndroidRuntime: at java.lang.Thread.run(Thread.java:764)
06-26 18:22:52.908 9789 9789 I cr_LibraryLoader: Time to load native libraries: 3 ms (timestamps 7584-7587)
06-26 18:22:52.909 9789 10123 D OSTracker: OS Event: crash
06-26 18:22:52.844 1363 6524 D ActivityManager: # addPackageDependency # packageName=com.android.chrome -> proc: ProcessRecord{e72ceb3 9789:com.my.app/u0a214}
06-26 18:22:52.911 1363 3290 W ActivityManager: Force finishing activity com.my.app/.MyActivity
(I replaced my package name with com.my.app in the above log, for clarity.)
None of these lines are my own Log strings. It's all system's.
The crashing device do have the Chrome APK installed, and the WebView implementation is defined to be Chrome.
It seems to me that, at the time of app launch, the com.android.chrome dependency is not yet ready, and the system fails to load and bind it to my process.
Is there a way to force preloading the dependency?
Thanks.

Related

Error: Unable to load script. Make sure you are either running a Metro server or your bundle 'index.android.bundle' is packaged correctly for release

I upgraded my React Native project from 0.63.3 to 0.66.4 with the help of this resource
https://react-native-community.github.io/upgrade-helper/?from=0.63.3&to=0.66.4 (followed every instruction in it).
But after generating the apk and I see the below error during the launch ->
01-27 19:12:46.364 9223 9895 E AndroidRuntime: java.lang.RuntimeException: Unable to load script. Make sure you're either running Metro (run 'npx react-native start') or that your bundle 'index.android.bundle' is packaged correctly for release.
01-27 19:12:46.364 9223 9895 E AndroidRuntime: at com.facebook.react.bridge.CatalystInstanceImpl.jniLoadScriptFromAssets(Native Method)
01-27 19:12:46.364 9223 9895 E AndroidRuntime: at com.facebook.react.bridge.CatalystInstanceImpl.loadScriptFromAssets(CatalystInstanceImpl.java:2)
01-27 19:12:46.364 9223 9895 E AndroidRuntime: at com.facebook.react.bridge.JSBundleLoader$1.loadScript(JSBundleLoader.java:1)
01-27 19:12:46.364 9223 9895 E AndroidRuntime: at com.facebook.react.bridge.CatalystInstanceImpl.runJSBundle(CatalystInstanceImpl.java:3)
01-27 19:12:46.364 9223 9895 E AndroidRuntime: at com.facebook.react.o.s(ReactInstanceManager.java:39)
01-27 19:12:46.364 9223 9895 E AndroidRuntime: at com.facebook.react.o.c(ReactInstanceManager.java:1)
01-27 19:12:46.364 9223 9895 E AndroidRuntime: at com.facebook.react.o$f.run(ReactInstanceManager.java:12)
My index.android.bundle is getting generated in the correct path And I tried every possible solution below to resolve this error, but nothing seems to resolve the above error:
$ mkdir android/app/src/main/assets
$ react-native bundle --platform android --dev false --entry-file index.android.js --
bundle-output android/app/src/main/assets/index.android.bundle --assets-dest
android/app/src/main/res
In Project build.gradle =>
project.ext.react= [
 bundleInDebug: true,
 bundleInRelease: true ]
In androidManifest.xml =>
android:usesCleartextTraffic="true"
tools:ignore="GoogleAppIndexingWarning
In Project build.gradle =>
project.ext.react= [
entryFile: "index.js",
bundleAssetName: "index.android.bundle",
devDisabledInAppDev: true,
devDisabledInRelease: true ]
https://stackoverflow.com/a/49143330/18210851
Please suggest some solution.
Before doing the first step i.e., mkdir android/app/src/main/assets, you have to run the metro server using the npm start command. The below link has all the steps required to create an offline APk in debug mode.I can see that the first step is missing.
https://stackoverflow.com/a/37965603/8988448

Android app keeps crashing on emulator and device [duplicate]

This question already has answers here:
What is a NullPointerException, and how do I fix it?
(12 answers)
Closed 3 years ago.
I am executing a very basic task of opening another activity using a button. The code seems to be error-free but the app crashes without even showing the main activity. This happens on both the emulator as well as my device.
When the app has no function, i.e. when the app has just buttons which do nothing, the app works fine. But if I try to make them do anything(intent to open another activity, or to play with their visibility) the app crashes.
The logcat is as follows:
11-12 13:55:56.627 2962-2962/? D/AndroidRuntime: >>>>>> START com.android.internal.os.RuntimeInit uid 0 <<<<<<
11-12 13:55:56.628 2962-2962/? D/AndroidRuntime: CheckJNI is ON
11-12 13:55:56.672 2962-2962/? D/ICU: No timezone override file found: /data/misc/zoneinfo/current/icu/icu_tzdata.dat
11-12 13:55:56.754 2962-2962/? E/memtrack: Couldn't load memtrack module (No such file or directory)
11-12 13:55:56.754 2962-2962/? E/android.os.Debug: failed to load memtrack module: -2
11-12 13:55:56.755 2962-2962/? I/Radio-JNI: register_android_hardware_Radio DONE
11-12 13:55:56.761 2962-2962/? D/AndroidRuntime: Calling main entry com.android.commands.pm.Pm
11-12 13:55:56.772 2962-2962/? I/art: System.exit called, status: 0
11-12 13:55:56.772 2962-2962/? I/AndroidRuntime: VM exiting with result code 0.
11-12 13:55:57.068 2977-2977/? D/AndroidRuntime: >>>>>> START com.android.internal.os.RuntimeInit uid 0 <<<<<<
11-12 13:55:57.069 2977-2977/? D/AndroidRuntime: CheckJNI is ON
11-12 13:55:57.129 2977-2977/? D/ICU: No timezone override file found: /data/misc/zoneinfo/current/icu/icu_tzdata.dat
11-12 13:55:57.199 2977-2977/? E/memtrack: Couldn't load memtrack module (No such file or directory)
11-12 13:55:57.199 2977-2977/? E/android.os.Debug: failed to load memtrack module: -2
11-12 13:55:57.200 2977-2977/? I/Radio-JNI: register_android_hardware_Radio DONE
11-12 13:55:57.205 2977-2977/? D/AndroidRuntime: Calling main entry com.android.commands.pm.Pm
11-12 13:55:57.216 2977-2977/? I/art: System.exit called, status: 0
11-12 13:55:57.220 2977-2977/? I/AndroidRuntime: VM exiting with result code 0.
11-12 13:55:59.484 2987-2987/? D/AndroidRuntime: >>>>>> START com.android.internal.os.RuntimeInit uid 0 <<<<<<
11-12 13:55:59.487 2987-2987/? D/AndroidRuntime: CheckJNI is ON
11-12 13:55:59.522 2987-2987/? D/ICU: No timezone override file found: /data/misc/zoneinfo/current/icu/icu_tzdata.dat
11-12 13:55:59.602 2987-2987/? E/memtrack: Couldn't load memtrack module (No such file or directory)
11-12 13:55:59.602 2987-2987/? E/android.os.Debug: failed to load memtrack module: -2
11-12 13:55:59.603 2987-2987/? I/Radio-JNI: register_android_hardware_Radio DONE
11-12 13:55:59.615 2987-2987/? D/AndroidRuntime: Calling main entry com.android.commands.wm.Wm
11-12 13:55:59.643 2987-2987/? D/AndroidRuntime: Shutting down VM
11-12 13:56:01.407 2999-2999/? D/AndroidRuntime: >>>>>> START com.android.internal.os.RuntimeInit uid 0 <<<<<<
11-12 13:56:01.408 2999-2999/? D/AndroidRuntime: CheckJNI is ON
11-12 13:56:01.465 2999-2999/? D/ICU: No timezone override file found: /data/misc/zoneinfo/current/icu/icu_tzdata.dat
11-12 13:56:01.542 2999-2999/? E/memtrack: Couldn't load memtrack module (No such file or directory)
11-12 13:56:01.542 2999-2999/? E/android.os.Debug: failed to load memtrack module: -2
11-12 13:56:01.543 2999-2999/? I/Radio-JNI: register_android_hardware_Radio DONE
11-12 13:56:01.553 2999-2999/? D/AndroidRuntime: Calling main entry com.android.commands.am.Am
--------- beginning of system
11-12 13:56:01.562 1585-1920/system_process I/ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.example.dell.crash/.MainActivity} from uid 0 on display 0
11-12 13:56:01.579 2147-2341/com.google.android.googlequicksearchbox:search I/MicrophoneInputStream: mic_close com.google.android.apps.gsa.speech.audio.u#20f33e2
11-12 13:56:01.605 3007-3007/? I/art: Not late-enabling -Xcheck:jni (already on)
11-12 13:56:01.606 2147-2347/com.google.android.googlequicksearchbox:search I/HotwordRecognitionRnr: Stopping hotword detection.
11-12 13:56:01.606 2147-2699/com.google.android.googlequicksearchbox:search I/HotwordRecognitionRnr: Hotword detection finished
11-12 13:56:01.610 1585-1598/system_process I/ActivityManager: Start proc 3007:com.example.dell.crash/u0a64 for activity com.example.dell.crash/.MainActivity
11-12 13:56:01.604 2999-2999/? D/AndroidRuntime: Shutting down VM
[ 11-12 13:56:01.697 1585: 1608 D/ ]
HostConnection::get() New Host Connection established 0x7f8480e69e40, tid 1608
11-12 13:56:01.728 3007-3007/com.example.dell.crash W/System: ClassLoader referenced unknown path: /data/app/com.example.dell.crash-1/lib/x86_64
11-12 13:56:01.729 3007-3007/com.example.dell.crash I/InstantRun: Instant Run Runtime started. Android package is com.example.dell.crash, real application class is null.
11-12 13:56:02.906 1891-2316/com.google.android.googlequicksearchbox E/Surface: getSlotFromBufferLocked: unknown buffer: 0xe9e5e990
11-12 13:56:03.510 3007-3007/com.example.dell.crash W/System: ClassLoader referenced unknown path: /data/app/com.example.dell.crash-1/lib/x86_64
11-12 13:56:03.707 3007-3007/com.example.dell.crash D/AndroidRuntime: Shutting down VM
--------- beginning of crash
11-12 13:56:03.707 3007-3007/com.example.dell.crash E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.dell.crash, PID: 3007
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.dell.crash/com.example.dell.crash.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2327)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.Window$Callback android.view.Window.getCallback()' on a null object reference
at android.support.v7.app.AppCompatDelegateImplBase.<init>(AppCompatDelegateImplBase.java:116)
at android.support.v7.app.AppCompatDelegateImplV9.<init>(AppCompatDelegateImplV9.java:147)
at android.support.v7.app.AppCompatDelegateImplV11.<init>(AppCompatDelegateImplV11.java:27)
at android.support.v7.app.AppCompatDelegateImplV14.<init>(AppCompatDelegateImplV14.java:50)
at android.support.v7.app.AppCompatDelegateImplV23.<init>(AppCompatDelegateImplV23.java:29)
at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:199)
at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:181)
at android.support.v7.app.AppCompatActivity.getDelegate(AppCompatActivity.java:521)
at android.support.v7.app.AppCompatActivity.findViewById(AppCompatActivity.java:190)
at com.example.dell.crash.MainActivity.<init>(MainActivity.java:10)
at java.lang.Class.newInstance(Native Method)
at android.app.Instrumentation.newActivity(Instrumentation.java:1067)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2317)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
at android.app.ActivityThread.-wrap11(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:148) 
at android.app.ActivityThread.main(ActivityThread.java:5417) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
11-12 13:56:03.708 1585-2055/system_process W/ActivityManager: Force finishing activity com.example.dell.crash/.MainActivity
11-12 13:56:04.016 1585-2055/system_process I/WindowManager: Screenshot max retries 4 of Token{9795bf6 ActivityRecord{989c091 u0 com.example.dell.crash/.MainActivity t51 f}} appWin=Window{a3bf3ce u0 Starting com.example.dell.crash} drawState=4
11-12 13:56:04.116 1585-2485/system_process I/OpenGLRenderer: Initialized EGL, version 1.4
11-12 13:56:04.518 1585-1601/system_process W/ActivityManager: Activity pause timeout for ActivityRecord{989c091 u0 com.example.dell.crash/.MainActivity t51 f}
11-12 13:56:04.550 2328-2336/com.google.android.gms W/SQLiteConnectionPool: A SQLiteConnection object for database '/data/user/0/com.google.android.gms/databases/networkstatistics.sqlite' was leaked! Please fix your application to end transactions in progress properly and to close the database when it is no longer needed.
11-12 13:56:04.550 2328-2336/com.google.android.gms W/SQLiteConnectionPool: A SQLiteConnection object for database '/data/user/0/com.google.android.gms/databases/metrics.db' was leaked! Please fix your application to end transactions in progress properly and to close the database when it is no longer needed.
11-12 13:56:04.551 2328-2336/com.google.android.gms W/SQLiteConnectionPool: A SQLiteConnection object for database '/data/user/0/com.google.android.gms/databases/help_responses.db' was leaked! Please fix your application to end transactions in progress properly and to close the database when it is no longer needed.
11-12 13:56:04.572 2328-2336/com.google.android.gms W/SQLiteConnectionPool: A SQLiteConnection object for database '/data/user/0/com.google.android.gms/databases/auto_complete_suggestions.db' was leaked! Please fix your application to end transactions in progress properly and to close the database when it is no longer needed.
11-12 13:56:04.860 1585-1602/system_process I/Choreographer: Skipped 35 frames! The application may be doing too much work on its main thread.
11-12 13:56:04.925 2147-3076/com.google.android.googlequicksearchbox:search I/HotwordRecognitionRnr: Starting hotword detection.
11-12 13:56:04.943 2147-3078/com.google.android.googlequicksearchbox:search I/MicrophoneInputStream: mic_starting com.google.android.apps.gsa.speech.audio.u#76753fd
11-12 13:56:04.955 1585-1599/system_process I/ActivityManager: Killing 2527:com.android.settings/1000 (adj 15): empty #17
11-12 13:56:04.965 1202-2042/? E/audio_hw_generic: Error opening input stream format 1, channel_mask 0010, sample_rate 16000
11-12 13:56:04.969 1202-3080/? I/AudioFlinger: AudioFlinger's thread 0xf3b80000 ready to run
11-12 13:56:04.988 2147-3078/com.google.android.googlequicksearchbox:search I/MicrophoneInputStream: mic_started com.google.android.apps.gsa.speech.audio.u#76753fd
11-12 13:56:04.991 2147-2341/com.google.android.googlequicksearchbox:search I/MicrophoneInputStream: mic_close com.google.android.apps.gsa.speech.audio.u#76753fd
11-12 13:56:04.992 2147-3078/com.google.android.googlequicksearchbox:search E/AudioRecord-JNI: Error -4 during AudioRecord native read
11-12 13:56:05.009 2147-2347/com.google.android.googlequicksearchbox:search I/HotwordRecognitionRnr: Stopping hotword detection.
11-12 13:56:05.010 2147-3076/com.google.android.googlequicksearchbox:search I/HotwordRecognitionRnr: Hotword detection finished
11-12 13:56:05.140 1585-1599/system_process I/ActivityManager: Killing 2649:com.android.dialer/u0a4 (adj 15): empty #17
11-12 13:56:05.395 1891-2316/com.google.android.googlequicksearchbox W/OpenGLRenderer: Incorrectly called buildLayer on View: em, destroying layer...
11-12 13:56:05.447 1585-1608/system_process D/gralloc_ranchu: gralloc_unregister_buffer: exiting HostConnection (is buffer-handling thread)
11-12 13:56:05.466 2328-2472/com.google.android.gms I/Icing: Usage reports 0 indexed 0 rejected 0 imm upload true
11-12 13:56:05.486 2328-2504/com.google.android.gms I/Icing: Usage reports 0 indexed 0 rejected 0 imm upload true
11-12 13:56:05.499 1585-1920/system_process I/ActivityManager: Killing 2670:com.android.managedprovisioning/u0a8 (adj 15): empty #17
11-12 13:56:15.034 1585-1601/system_process W/ActivityManager: Activity destroy timeout for ActivityRecord{989c091 u0 com.example.dell.crash/.MainActivity t51 f}
11-12 13:56:15.075 2147-3230/com.google.android.googlequicksearchbox:search W/CronetSyncConnectionRcs: Upload content type not set.
11-12 13:56:17.062 3007-3007/com.example.dell.crash I/Process: Sending signal. PID: 3007 SIG: 9
11-12 13:56:17.093 1585-2485/system_process E/Surface: getSlotFromBufferLocked: unknown buffer: 0x7f849297e160
11-12 13:56:17.101 1585-2485/system_process D/OpenGLRenderer: endAllStagingAnimators on 0x7f84835bfc00 (RippleDrawable) with handle 0x7f847ee9ee60
11-12 13:56:17.131 1585-1920/system_process W/InputMethodManagerService: Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy#9d97b24 attribute=null, token = android.os.BinderProxy#32922a9
11-12 13:56:17.165 1585-1920/system_process I/ActivityManager: Process com.example.dell.crash (pid 3007) has died
11-12 13:56:17.367 1585-1608/system_process W/AppOps: Finishing op nesting under-run: uid 1000 pkg android code 24 time=0 duration=0 nesting=0
11-12 13:56:17.409 2147-3268/com.google.android.googlequicksearchbox:search I/HotwordRecognitionRnr: Starting hotword detection.
11-12 13:56:17.413 2147-3269/com.google.android.googlequicksearchbox:search I/MicrophoneInputStream: mic_starting com.google.android.apps.gsa.speech.audio.u#898b349
11-12 13:56:17.423 1202-1546/? E/audio_hw_generic: Error opening input stream format 1, channel_mask 0010, sample_rate 16000
11-12 13:56:17.444 1202-3273/? I/AudioFlinger: AudioFlinger's thread 0xf3b80000 ready to run
11-12 13:56:17.449 2147-2157/com.google.android.googlequicksearchbox:search I/art: Background sticky concurrent mark sweep GC freed 1466(93KB) AllocSpace objects, 0(0B) LOS objects, 9% free, 4MB/4MB, paused 25.294ms total 31.038ms
11-12 13:56:17.456 2147-3269/com.google.android.googlequicksearchbox:search I/MicrophoneInputStream: mic_started com.google.android.apps.gsa.speech.audio.u#898b349
11-12 13:56:17.493 2147-2147/com.google.android.googlequicksearchbox:search I/HotwordWorker: onReady
11-12 13:56:17.504 2328-3272/com.google.android.gms W/IcingInternalCorpora: getNumBytesRead when not calculated.
11-12 13:56:17.564 2328-2472/com.google.android.gms I/Icing: Usage reports 0 indexed 0 rejected 0 imm upload true
11-12 13:56:17.571 2328-2472/com.google.android.gms I/Icing: Usage reports 0 indexed 0 rejected 0 imm upload true
11-12 13:56:18.155 1202-1544/? W/AudioFlinger: write blocked for 408 msecs, 4 delayed writes, thread 0xf4500000
The .java file has the following block:
public class MainActivity extends AppCompatActivity {
Button btn1 = (Button) findViewById(R.id.button);
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, Main2Activity.class));
}
});
}
}
The XML file is as follows:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/activity_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.dell.crash.MainActivity">
<Button
android:text="Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="102dp"
android:id="#+id/button" />
</RelativeLayout>
I am using Android Studio 2.2.2
After
setContentView(R.layout.activity_main);
Add call like this
Button button = (Button) findViewById(R.id.button);
issue was you didn't created reference for button.
put Button btn1 = (Button) findViewById(R.id.button); in oncreate method.
The reason is you try add an event to your button but didn't show the reference id inside oncreate from where every app start its activity.
You should always instantiate button inside onCreate(). So your code should be like
public class MainActivity extends AppCompatActivity {
Button btn1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn1 = (Button) findViewById(R.id.button);
btn1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, Main2Activity.class));
}
});
}
}
If you init your btn1 variable in declarations section, it will run before the setContextView(...) function call. Put btn1 initialization after setContextView(...)!
public class MainActivity extends AppCompatActivity {
private Button btn1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn1 = Button.class.cast(findViewById(R.id.button));
btn1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, Main2Activity.class));
}
});
}
}

App crashes in emulator using libgdx and tween engine

I'm currently working on a project and so far only have the splash and main screen done. I wanted to see how it would run in an Android environment so I ran it as an Android Application. The emulator booted up just fine but when it load the app or "Uploading Project-android.apk onto device 'emulator-5554'
Installing Project-android.apk..." it prompts up that it "Unfortunately, Project has stopped. Here I copied the logcat for reference.
06-26 23:33:53.190: D/dalvikvm(1808): Not late-enabling CheckJNI (already on)
06-26 23:33:53.280: D/dalvikvm(1808): Trying to load lib /data/app- lib/com.levellabs.project.android-2/libgdx.so 0xb1fbed48
06-26 23:33:53.280: D/dalvikvm(1808): Added shared lib /data/app- lib/com.levellabs.project.android-2/libgdx.so 0xb1fbed48
06-26 23:33:53.280: D/dalvikvm(1808): No JNI_OnLoad found in /data/app- lib/com.levellabs.project.android-2/libgdx.so 0xb1fbed48, skipping init
06-26 23:33:53.280: D/(1808): HostConnection::get() New Host Connection established 0xb90f3dc0, tid 1808
06-26 23:33:53.460: I/AndroidInput(1808): sensor listener setup
06-26 23:33:53.550: W/EGL_emulation(1808): eglSurfaceAttrib not implemented
06-26 23:33:53.550: D/OpenGLRenderer(1808): Enabling debug mode 0
06-26 23:33:53.560: D/(1808): HostConnection::get() New Host Connection established 0xb910b590, tid 1823
06-26 23:33:53.600: W/GL2JNIView(1808): creating OpenGL ES 2.0 context
06-26 23:33:53.800: D/dalvikvm(1808): Trying to load lib /data/app- lib/com.levellabs.project.android-2/libgdx.so 0xb1fbed48
06-26 23:33:53.800: D/dalvikvm(1808): Shared lib '/data/app- lib/com.levellabs.project.android-2/libgdx.so' already loaded in same CL 0xb1fbed48
06-26 23:33:53.800: I/GL2(1808): all initialized 2
06-26 23:33:53.800: I/AndroidGraphics(1808): OGL renderer: Android Emulator OpenGL ES Translator (GeForce GTX 770/PCIe/SSE2)
06-26 23:33:53.800: I/AndroidGraphics(1808): OGL vendor: Google (NVIDIA Corporation)
06-26 23:33:53.800: I/AndroidGraphics(1808): OGL version: OpenGL ES 2.0 (4.5.0 NVIDIA 350.12)
06-26 23:33:53.800: I/AndroidGraphics(1808): OGL extensions: GL_EXT_debug_marker GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_depth24 GL_OES_depth32 GL_OES_element_index_uint GL_OES_texture_float GL_OES_texture_float_linear GL_OES_compressed_paletted_texture GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth_texture GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_packed_depth_stencil GL_OES_vertex_half_float GL_OES_texture_npot GL_OES_rgb8_rgba8
06-26 23:33:53.800: E/EGL_emulation(1808): [getAttribValue] Bad attribute idx
06-26 23:33:53.800: E/EGL_emulation(1808): tid 1823: eglGetConfigAttrib(605): error 0x3004 (EGL_BAD_ATTRIBUTE)
06-26 23:33:53.800: E/EGL_emulation(1808): [getAttribValue] Bad attribute idx
06-26 23:33:53.800: E/EGL_emulation(1808): tid 1823: eglGetConfigAttrib(605): error 0x3004 (EGL_BAD_ATTRIBUTE)
06-26 23:33:53.800: I/AndroidGraphics(1808): framebuffer: (5, 6, 5, 0)
06-26 23:33:53.800: I/AndroidGraphics(1808): depthbuffer: (24)
06-26 23:33:53.800: I/AndroidGraphics(1808): stencilbuffer: (0)
06-26 23:33:53.800: I/AndroidGraphics(1808): samples: (0)
06-26 23:33:53.800: I/AndroidGraphics(1808): coverage sampling: (false)
06-26 23:33:53.810: I/AndroidGraphics(1808): Managed meshes/app: { }
06-26 23:33:53.810: I/AndroidGraphics(1808): Managed textures/app: { }
06-26 23:33:53.810: I/AndroidGraphics(1808): Managed cubemap/app: { }
06-26 23:33:53.810: I/AndroidGraphics(1808): Managed shaders/app: { }
06-26 23:33:53.810: I/AndroidGraphics(1808): Managed buffers/app: { }
06-26 23:33:55.540: I/dalvikvm(1808): Could not find method aurelienribon.tweenengine.TweenManager.update, referenced from method com.levellabs.project.GameScreen.render
06-26 23:33:55.540: W/dalvikvm(1808): VFY: unable to resolve virtual method 369: Laurelienribon/tweenengine/TweenManager;.update (F)V
06-26 23:33:55.540: D/dalvikvm(1808): VFY: replacing opcode 0x6e at 0x0008
06-26 23:33:55.540: D/dalvikvm(1808): GC_FOR_ALLOC freed 407K, 14% free 2931K/3392K, paused 2ms, total 2ms
06-26 23:33:55.540: E/dalvikvm(1808): Could not find class 'aurelienribon.tweenengine.TweenManager', referenced from method com.levellabs.project.GameScreen.show
06-26 23:33:55.540: W/dalvikvm(1808): VFY: unable to resolve new-instance 100 (Laurelienribon/tweenengine/TweenManager;) in Lcom/levellabs/project/GameScreen;
06-26 23:33:55.540: D/dalvikvm(1808): VFY: replacing opcode 0x22 at 0x001e
06-26 23:33:55.540: D/dalvikvm(1808): DexOpt: unable to opt direct call 0x0170 at 0x20 in Lcom/levellabs/project/GameScreen;.show
06-26 23:33:55.540: I/dalvikvm(1808): Failed resolving Lcom/levellabs/project/tween/SpriteAccessor; interface 98 'Laurelienribon/tweenengine/TweenAccessor;'
06-26 23:33:55.540: W/dalvikvm(1808): Link of class 'Lcom/levellabs/project/tween/SpriteAccessor;' failed
06-26 23:33:55.540: D/dalvikvm(1808): DexOpt: unable to opt direct call 0x345e at 0x29 in Lcom/levellabs/project/GameScreen;.show
06-26 23:33:55.540: I/dalvikvm(1808): Failed resolving Lcom/levellabs/project/GameScreen$1; interface 99 'Laurelienribon/tweenengine/TweenCallback;'
06-26 23:33:55.540: W/dalvikvm(1808): Link of class 'Lcom/levellabs/project/GameScreen$1;' failed
06-26 23:33:55.540: D/dalvikvm(1808): DexOpt: unable to opt direct call 0x3434 at 0x54 in Lcom/levellabs/project/GameScreen;.show
06-26 23:33:55.660: D/dalvikvm(1808): GC_FOR_ALLOC freed 71K, 9% free 3192K/3472K, paused 2ms, total 2ms
06-26 23:33:56.120: W/dalvikvm(1808): threadid=11: thread exiting with uncaught exception (group=0xb1cecb20)
06-26 23:33:56.120: E/AndroidRuntime(1808): FATAL EXCEPTION: GLThread 75
06-26 23:33:56.120: E/AndroidRuntime(1808): Process: com.levellabs.project.android, PID: 1808
06-26 23:33:56.120: E/AndroidRuntime(1808): java.lang.NoClassDefFoundError: aurelienribon.tweenengine.TweenManager
06-26 23:33:56.120: E/AndroidRuntime(1808): at com.levellabs.project.GameScreen.show(GameScreen.java:68)
06-26 23:33:56.120: E/AndroidRuntime(1808): at com.badlogic.gdx.Game.setScreen(Game.java:61)
06-26 23:33:56.120: E/AndroidRuntime(1808): at com.levellabs.project.Project.create(Project.java:24)
06-26 23:33:56.120: E/AndroidRuntime(1808): at com.badlogic.gdx.backends.android.AndroidGraphics.onSurfaceChanged(AndroidGraphi cs.java:241)
06-26 23:33:56.120: E/AndroidRuntime(1808): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1512)
06-26 23:33:56.120: E/AndroidRuntime(1808): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1240)
06-26 23:33:56.130: I/AndroidInput(1808): sensor listener tear down
06-26 23:33:56.130: I/AndroidGraphics(1808): Managed meshes/app: { }
06-26 23:33:56.130: I/AndroidGraphics(1808): Managed textures/app: { }
06-26 23:33:56.130: I/AndroidGraphics(1808): Managed cubemap/app: { }
06-26 23:33:56.130: I/AndroidGraphics(1808): Managed shaders/app: { }
06-26 23:33:56.130: I/AndroidGraphics(1808): Managed buffers/app: { }
I think your jar file version which has some native functions does not matches the libgdx.so file version which does not have that method. Better you compile the c++ libgdx library using Android NDK to match the native functions. I got this from your error
No JNI_OnLoad found in /data/app- lib/com.levellabs.project.android-2/libgdx.so 0xb1fbed48, skipping init
......
......
Could not find method aurelienribon.tweenengine.TweenManager.update, referenced from method com.levellabs.project.GameScreen.render
This means some of the native methods are not properly binded by the JNI
If you are running inside an emulator, you need corresponding .so files live libgdx.....so files
Refer this Android ndk + libgdx
If you want the ready made JAR files and .so files download here http://libgdx.badlogicgames.com/nightlies/dist/
You can see there are 11 JAR files and folders like armeabi/ armeabi-v7a/ x86/
Go through the README files for further setup needs and compilations steps.
There is also a success comment here Libgdx tween not working on Android
You can also download the Demo App https://java-universal-tween-engine.googlecode.com/files/tween-engine-demo-6.3.0.zip and check the libs folder inside it for the JAR files
If you need more help, ping me via https://chat.stackoverflow.com/rooms/50272/androidians chat room, I will help you

NullPointerException in Android when declaring a Content Provider

I'm facing a strange issue when declaring a Content Provider in my project. I'm copying the classes and Manifest declaration from another project of my own. It's working OK on my other project.
Here's part of my Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.qr"
android:installLocation="auto"
android:versionCode="540"
android:versionName="5.4" >
(...)
<application
android:name=".Application"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:logo="#drawable/ic_launch" >
(...)
<provider
android:name=".provider.HistoryProvider"
android:authorities="com.example.qr.History"
android:exported="true"
android:multiprocess="true"
android:readPermission="com.example.qr.History.read"
android:writePermission="com.example.qr.History.write" />
(...)
</application>
</manifest>
When I run my app, I get this stack trace:
FATAL EXCEPTION: main
java.lang.NullPointerException
at android.app.ActivityThread.installProvider(ActivityThread.java:4783)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4430)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4372)
at android.app.ActivityThread.access$1300(ActivityThread.java:141)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1294)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5039)
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:793)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
at dalvik.system.NativeStart.main(Native Method)
This is the whole stack trace. No 'com.example' trace is included. Of course some code in my app is producing this but the actual crash happens in Android.
Because my own classes are not included in the stack trace, I really don't know where to look.
I've run the code in an emulator with Android 4.2 and I've compared it with the source code of that version of Android, so I know the crash is produced in this line of ActivityThread:
4782 ApplicationInfo ai = info.applicationInfo;
4783 if (context.getPackageName().equals(ai.packageName)) {
Here's a link to the source code of this class.
If I don't declare the content provider (i.e. if I remove from my Manifest), the app works perfectly.
I've added some logs to my Application class, as well as the main Activity class. The crash is produced before either is launched.
So, my question is: what in my code can be producing context, context.getPackageName() or info.applicationInfo to be null during installation?
EDIT
When triggering the stack trace in the emulator several times, I only get this between traces:
09-11 23:10:21.250: E/AndroidRuntime(933): at dalvik.system.NativeStart.main(Native Method)
09-11 23:10:21.470: D/dalvikvm(933): GC_CONCURRENT freed 142K, 9% free 2951K/3224K, paused 78ms+3ms, total 225ms
09-11 23:10:44.030: I/Process(933): Sending signal. PID: 933 SIG: 9
09-11 23:10:46.940: D/dalvikvm(947): GC_CONCURRENT freed 164K, 10% free 2711K/2996K, paused 13ms+114ms, total 201ms
09-11 23:10:47.170: I/ActivityThread(947): Pub com.example.qr.History: com.example.qr.provider.HistoryProvider
09-11 23:10:47.170: D/AndroidRuntime(947): Shutting down VM
09-11 23:10:47.170: W/dalvikvm(947): threadid=1: thread exiting with uncaught exception (group=0x40a70930)
09-11 23:10:47.180: E/AndroidRuntime(947): FATAL EXCEPTION: main

android opengl error (Application unexpectedly stopped)

I'm developing this game for android. I'm following a tutorial on how to make menus. And this is the code. There's no errors just warning in the code so I dont know what to do.
08-23 21:31:41.099: E/System(79): Failure starting core service
08-23 21:31:41.099: E/System(79): java.lang.SecurityException
08-23 21:31:41.099: E/System(79): at android.os.BinderProxy.transact(Native Method)
08-23 21:31:41.099: E/System(79): at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146)
08-23 21:31:41.099: E/System(79): at android.os.ServiceManager.addService(ServiceManager.java:72)
08-23 21:31:41.099: E/System(79): at com.android.server.ServerThread.run(SystemServer.java:206)
08-23 21:31:41.139: E/EventHub(79): could not get driver version for /dev/input/mouse0, Not a typewriter
08-23 21:31:41.139: E/EventHub(79): could not get driver version for /dev/input/mice, Not a typewriter
08-23 21:31:42.049: E/SoundPool(79): error loading /system/media/audio/ui/Effect_Tick.ogg
08-23 21:31:42.049: E/SoundPool(79): error loading /system/media/audio/ui/KeypressStandard.ogg
08-23 21:31:42.069: E/SoundPool(79): error loading /system/media/audio/ui/KeypressSpacebar.ogg
08-23 21:31:42.069: E/SoundPool(79): error loading /system/media/audio/ui/KeypressDelete.ogg
08-23 21:31:42.079: E/SoundPool(79): error loading /system/media/audio/ui/KeypressReturn.ogg
08-23 21:31:42.159: E/UsbObserver(79): java.lang.NullPointerException
08-23 21:31:42.159: E/UsbObserver(79): at com.android.server.UsbObserver.init(UsbObserver.java:131)
08-23 21:31:42.159: E/UsbObserver(79): at com.android.server.UsbObserver.<init>(UsbObserver.java:65)
08-23 21:31:42.159: E/UsbObserver(79): at com.android.server.ServerThread.run(SystemServer.java:402)
08-23 21:31:47.820: E/ThrottleService(79): Could not open GPS configuration file /etc/gps.conf
08-23 21:31:47.880: E/ThrottleService(79): Error reading data file
08-23 21:31:49.250: E/logwrapper(194): executing /system/bin/tc failed: No such file or directory
08-23 21:31:49.320: E/logwrapper(195): executing /system/bin/tc failed: No such file or directory
08-23 21:31:49.370: E/logwrapper(196): executing /system/bin/tc failed: No such file or directory
08-23 21:31:57.759: E/logwrapper(225): executing /system/bin/tc failed: No such file or directory
08-23 21:31:57.889: E/logwrapper(226): executing /system/bin/tc failed: No such file or directory
08-23 21:31:58.000: E/logwrapper(227): executing /system/bin/tc failed: No such file or directory
08-23 21:32:41.593: E/MetadataRetrieverClient(34): failed to extract an album art
08-23 21:33:17.502: E/ThrottleService(79): Error reading data file
08-23 22:06:08.702: E/AndroidRuntime(414): FATAL EXCEPTION: GLThread 13
08-23 22:06:08.702: E/AndroidRuntime(414): java.lang.IllegalArgumentException: No EGLConfig found!
08-23 22:06:08.702: E/AndroidRuntime(414): at org.andengine.opengl.view.ConfigChooser.chooseConfig(ConfigChooser.java:183)
08-23 22:06:08.702: E/AndroidRuntime(414): at org.andengine.opengl.view.ConfigChooser.chooseConfig(ConfigChooser.java:157)
08-23 22:06:08.702: E/AndroidRuntime(414): at android.opengl.GLSurfaceView$EglHelper.start(GLSurfaceView.java:919)
08-23 22:06:08.702: E/AndroidRuntime(414): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1264)
08-23 22:06:08.702: E/AndroidRuntime(414): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1118)
if you are trying this in an emulator - it's probably not configured properly. See my answer to this question - Android AndEngine problems: java.lang.IllegalArgumentException: No EGLConfig Found
Changed already the target SDK, enable GPU Host, the processor to Intel. Still getting errors
08-25 01:41:48.889: ERROR/Zygote(793): setreuid() failed. errno: 30
08-25 01:42:01.820: ERROR/Zygote(793): setreuid() failed. errno: 30
08-25 01:42:04.430: ERROR/BatteryService(853): acOnlinePath not found
08-25 01:42:04.430: ERROR/BatteryService(853): usbOnlinePath not found
08-25 01:42:04.430: ERROR/BatteryService(853): batteryStatusPath not found
08-25 01:42:04.430: ERROR/BatteryService(853): batteryHealthPath not found
08-25 01:42:04.430: ERROR/BatteryService(853): batteryPresentPath not found
08-25 01:42:04.430: ERROR/BatteryService(853): batteryCapacityPath not found
08-25 01:42:04.430: ERROR/BatteryService(853): batteryVoltagePath not found
08-25 01:42:04.430: ERROR/BatteryService(853): batteryTemperaturePath not found
08-25 01:42:04.430: ERROR/BatteryService(853): batteryTechnologyPath not found
08-25 01:42:04.770: ERROR/EGL_emulation(853): rcMakeCurrent returned EGL_FALSE
08-25 01:42:04.770: ERROR/EGL_emulation(853): tid 874: eglMakeCurrent(984): error 0x3006 (EGL_BAD_CONTEXT)
08-25 01:42:04.770: ERROR/libEGL(853): call to OpenGL ES API with no current context (logged once per thread)
08-25 01:42:04.770: ERROR/libEGL(853): call to OpenGL ES API with no current context (logged once per thread)
08-25 01:42:04.770: ERROR/libEGL(853): call to OpenGL ES API with no current context (logged once per thread)
08-25 01:42:04.770: ERROR/libEGL(853): call to OpenGL ES API with no current context (logged once per thread)
08-25 01:43:01.773: ERROR/Zygote(889): setreuid() failed. errno: 30

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