Maps on Android application - java

Hi everybody? The problem is on the title! I can't display my OsMap.map which I have put on the sdcard card on my emulator.
Can someone tells me what's the problem?
First are the steps that I've done:
My MainActivity.Java:
package com.formation.macarte;
import java.io.File;
import java.io.IOException;
import org.mapsforge.android.maps.GeoPoint;
import org.mapsforge.android.maps.MapActivity;
import org.mapsforge.android.maps.MapController;
import org.mapsforge.android.maps.MapView;
import android.annotation.SuppressLint;
import android.os.Bundle;
//import android.view.Menu;
//import android.view.MenuItem;
import android.os.Environment;
public class MainActivity extends MapActivity {
MapController monController;
double longitude = 12.482883;
double latitude = 48.849076;
#SuppressLint("SdCardPath")
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
MapView mapView = new MapView(this);
mapView.setClickable(true);
mapView.setBuiltInZoomControls(true);
mapView.setMapFile(Environment.getExternalStorageDirectory().getAbsolutePath()
+ "/OsMap.map");
setContentView(mapView);
}
}
And in my androidManifest, I have this:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.formation.macarte"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="20" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
The file OsMap.map is already in mnt/sdcard like:
and in Edit Android Virtual Device: I have made one configuration: On the SD Card section, I had put C:\Android\adt-bundle-windows-x86-20140702\sdcard\osm.iso
So I've created a osm.iso to contain all my sdcard files, I've seen that in one tuto. And when I push one file from the DDMS, I can verify this same file in this osm.iso. So I think that it's correct!
And when I run this application, I can only display the ZoomControler, without the map. And sometimes, it shows this next error:
10-12 13:21:27.105: E/Trace(1727): error opening trace file: No such file or directory (2)
10-12 13:21:27.995: D/dalvikvm(1727): GC_CONCURRENT freed 72K, 8% free 2770K/2992K, paused 25ms+6ms, total 106ms
10-12 13:21:27.995: D/dalvikvm(1727): WAIT_FOR_CONCURRENT_GC blocked 92ms
10-12 13:21:28.135: D/dalvikvm(1727): GC_CONCURRENT freed 13K, 7% free 3163K/3388K, paused 20ms+13ms, total 110ms
10-12 13:21:28.135: D/dalvikvm(1727): WAIT_FOR_CONCURRENT_GC blocked 29ms
10-12 13:21:28.215: D/osm(1727): main: invalid map start position latitude: 1718579815
10-12 13:21:28.515: I/Choreographer(1727): Skipped 38 frames! The application may be doing too much work on its main thread.
10-12 13:21:28.855: D/dalvikvm(1727): GC_CONCURRENT freed 86K, 7% free 3478K/3712K, paused 11ms+11ms, total 113ms
10-12 13:21:28.855: D/dalvikvm(1727): WAIT_FOR_CONCURRENT_GC blocked 93ms
10-12 13:21:29.045: I/Choreographer(1727): Skipped 172 frames! The application may be doing too much work on its main thread.
10-12 13:21:29.324: D/gralloc_goldfish(1727): Emulator without GPU emulation detected.
10-12 13:21:32.465: I/Choreographer(1727): Skipped 45 frames! The application may be doing too much work on its main thread.
10-12 13:21:32.535: I/Choreographer(1727): Skipped 39 frames! The application may be doing too much work on its main thread.
10-12 13:21:32.575: I/Choreographer(1727): Skipped 33 frames! The application may be doing too much work on its main thread.
10-12 13:21:32.645: I/Choreographer(1727): Skipped 31 frames! The application may be doing too much work on its main thread.
10-12 13:21:32.785: I/Choreographer(1727): Skipped 116 frames! The application may be doing too much work on its main thread.
10-12 13:21:32.925: I/Choreographer(1727): Skipped 32 frames! The application may be doing too much work on its main thread.
10-12 13:21:33.005: I/Choreographer(1727): Skipped 40 frames! The application may be doing too much work on its main thread.
10-12 13:21:33.085: I/Choreographer(1727): Skipped 33 frames! The application may be doing too much work on its main thread.
10-12 13:21:39.675: I/Choreographer(1727): Skipped 36 frames! The application may be doing too much work on its main thread.
How can I solve this problem?

Related

ANDROID STUDIO builds succesfully but doesn't run

I've just built my first android app copying the code from this video: https://www.youtube.com/watch?v=gTy13ioTddg&t=594s
The app builds without problems but when I try to run it, it suddenly closes.
That's the message of the debugger:
12/02 12:19:56: Launching 'app' on Pixel_3a_API_30_x86.
Install successfully finished in 519 ms.
$ adb shell am start -n "com.example.pokedex/com.example.pokedex.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER -D
Waiting for application to come online: com.example.pokedex | com.example.pokedex.test
Waiting for application to come online: com.example.pokedex | com.example.pokedex.test
Connecting to com.example.pokedex
Capturing and displaying logcat messages from application. This behavior can be disabled in the "Logcat output" section of the "Debugger" settings page.
W/ActivityThread: Application com.example.pokedex is waiting for the debugger on port 8100...
I/System.out: Sending WAIT chunk
I/System.out: Debugger has connected
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
Connected to the target VM, address: 'localhost:52033', transport: 'socket'
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/System.out: waiting for debugger to settle...
I/chatty: uid=10153(com.example.pokedex) identical 2 lines
I/System.out: waiting for debugger to settle...
I/System.out: debugger has settled (1475)
D/NetworkSecurityConfig: No Network Security Config specified, using platform default
D/NetworkSecurityConfig: No Network Security Config specified, using platform default
D/libEGL: loaded /vendor/lib/egl/libEGL_emulation.so
D/libEGL: loaded /vendor/lib/egl/libGLESv1_CM_emulation.so
D/libEGL: loaded /vendor/lib/egl/libGLESv2_emulation.so
W/example.pokede: Accessing hidden method Landroid/view/View;->computeFitSystemWindows(Landroid/graphics/Rect;Landroid/graphics/Rect;)Z (greylist, reflection, allowed)
W/example.pokede: Accessing hidden method Landroid/view/ViewGroup;->makeOptionalFitsSystemWindows()V (greylist, reflection, allowed)
D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.pokedex, PID: 8349
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.pokedex/com.example.pokedex.MainActivity}: android.view.InflateException: Binary XML file line #2 in com.example.pokedex:layout/activity_main: Binary XML file line #2 in com.example.pokedex:layout/activity_main: Error inflating class android.support.constraint.ConstraintLayout
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Caused by: android.view.InflateException: Binary XML file line #2 in com.example.pokedex:layout/activity_main: Binary XML file line #2 in com.example.pokedex:layout/activity_main: Error inflating class android.support.constraint.ConstraintLayout
Caused by: android.view.InflateException: Binary XML file line #2 in com.example.pokedex:layout/activity_main: Error inflating class android.support.constraint.ConstraintLayout
Caused by: java.lang.ClassNotFoundException: android.support.constraint.ConstraintLayout
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:454)
at android.view.LayoutInflater.createView(LayoutInflater.java:813)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1004)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:959)
at android.view.LayoutInflater.inflate(LayoutInflater.java:657)
at android.view.LayoutInflater.inflate(LayoutInflater.java:532)
at android.view.LayoutInflater.inflate(LayoutInflater.java:479)
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:140)
at com.example.pokedex.MainActivity.onCreate(MainActivity.java:19)
at android.app.Activity.performCreate(Activity.java:8000)
at android.app.Activity.performCreate(Activity.java:7984)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
E/AndroidRuntime: Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.constraint.ConstraintLayout" on path: DexPathList[[zip file "/data/app/~~ikbXqJo2xtaJUvZzC7gM8Q==/com.example.pokedex-kRHbfAkGOaaI21CGLAjxuQ==/base.apk"],nativeLibraryDirectories=[/data/app/~~ikbXqJo2xtaJUvZzC7gM8Q==/com.example.pokedex-kRHbfAkGOaaI21CGLAjxuQ==/lib/x86, /system/lib, /system_ext/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:207)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
... 26 more
I/Process: Sending signal. PID: 8349 SIG: 9
Disconnected from the target VM, address: 'localhost:52033', transport: 'socket'
This is my Main Activity:
package com.example.pokedex;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;
public class MainActivity extends AppCompatActivity {
private RecyclerView recyclerView;
private RecyclerView.Adapter adapter;
private RecyclerView.LayoutManager layoutManager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView=findViewById(R.id.recycler_view);
adapter=new PokedexAdapter();
layoutManager=new LinearLayoutManager(this);
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(layoutManager);
}
}
Activity main.xml:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/recycler_view"/>
</android.support.constraint.ConstraintLayout>
Pokedex_row:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/pokedex_row">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/pokedex_row_text_view"/>
</LinearLayout>
Android Manifest.xml:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.pokedex">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/Theme.Pokedex">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
I've been trying to solve this problem several days so I would be very thankful if someone can help me!
Have tried you changing your ConstraintLayout to use androidx instead of support
try changing the opening tag of activity_main.xml to be:
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
and corresponding closing tag to be
</androidx.constraintlayout.widget.ConstraintLayout>
and then sync your project while connected to the internet.
I think it has problem with ConstraintLayout, can you share your xml files, that way I can help you batter.
I experience this error from time to time and use to solve by doing the following:
First, check if you have ConstraintLayout implementation in your app Gradle config
Then make sure there is no Error(maybe a semantic one) in your layout XML file
If the error persists, consider adding those two files to your question description so that one can easily help
Good Luck!

Android WebView app crashing in emulator: null Application Context?

I'm developing a very simple Android app on a Mac in AndroidStudio and I've created an AVD based on the Nexus S. The app compiles with no issues, the emulator launches and then I get errors in logcat and the app crashes. In the emulator, an error dialog displays with the message "Unfortunately App has stopped"
Here's the logcat output (error level):
10-01 13:59:27.813 14114-14114/com.company.app E/SysUtils﹕ ApplicationContext is null in ApplicationStatus
10-01 13:59:27.832 14114-14114/com.company.app E/libEGL﹕ validate_display:255 error 3008 (EGL_BAD_DISPLAY)
10-01 13:59:27.832 14114-14114/com.company.app E/libEGL﹕ validate_display:255 error 3008 (EGL_BAD_DISPLAY)
10-01 13:59:27.832 14114-14114/com.company.app E/chromium﹕ [ERROR:gl_surface_egl.cc(327)] No suitable EGL configs found.
10-01 13:59:27.832 14114-14114/com.company.app E/chromium﹕ [ERROR:gl_surface_android.cc(23)] GLSurfaceEGL::InitializeOneOff failed.
10-01 13:59:27.832 14114-14114/com.company.app E/chromium﹕ [ERROR:browser_main_loop.cc(698)] GLSurface::InitializeOneOff failed
10-01 13:59:27.854 14114-14114/com.company.app E/DataReductionProxySettingListener﹕ No DRP key due to exception:java.lang.ClassNotFoundException: com.android.webview.chromium.Drp
10-01 13:59:28.530 14114-14165/com.company.app A/chromium﹕ [FATAL:gl_surface_android.cc(58)] Check failed: kGLImplementationNone != GetGLImplementation() (0 vs. 0)
10-01 13:59:28.530 14114-14165/com.company.app A/libc﹕ Fatal signal 6 (SIGABRT), code -6 in tid 14165 (GpuThread)
I'm assuming that the first error related to ApplicationContext is the cause of the other errors, but I'm not sure about that. I've tried about 10 different methods for setting context, but the ApplicationContext error persists.
My main questions: Is the ApplicationContext error the root cause of the crash? If not, what is? What might I try to fix it?
Here's the complete application code for reference:
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.company.app" >
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<uses-permission android:name="android.permission.INTERNET" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
MainActivity.java
package com.company.app;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebSettings;
public class MainActivity extends AppCompatActivity {
private String appUrl = "http://company.com/mobile/index.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView myWebView = (WebView) findViewById(R.id.webView);
myWebView.setWebViewClient(new MyWebViewClient());
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);
myWebView.loadUrl(appUrl);
}
}
MyWebViewClient.java
package com.company.app;
import android.content.Intent;
import android.net.Uri;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MyWebViewClient extends WebViewClient {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (Uri.parse(url).getHost().equals("company.com")) {
return false;
}
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
view.getContext().startActivity(intent);
return true;
}
}
Here's the logcat output
That is not a Java stack trace, and therefore is not what you're looking for.
I'm assuming that the first error related to ApplicationContext is the cause of the other errors, but I'm not sure about that
That is some spurious message that you will see, even from apps that run fine.
If not, what is?
As ozbek notes, your <uses-permission> element needs to be moved outside of <application> and made a direct child of <manifest>. Your Java stack trace should mention a missing INTERNET permission.
It is possible that there are other problems, but that's definitely one.

Unable to instantiate application error which extends Application class

The below error occurs sometimes for some users.
I haven't seen it through android phones which I have for testing, but I got this crush via Google developer console.
[Error]
java.lang.RuntimeException: Unable to instantiate application com.***.***.MyApplication: java.lang.ClassNotFoundException: com.***.***.MyApplication
at android.app.LoadedApk.makeApplication(LoadedApk.java:501)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4253)
at android.app.ActivityThread.access$1400(ActivityThread.java:143)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1301)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4950)
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:997)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:764)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: com.***.***.MyApplication
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
at android.app.Instrumentation.newApplication(Instrumentation.java:982)
at android.app.LoadedApk.makeApplication(LoadedApk.java:496)
... 11 more
[MyApplication.java]
public class MyApplication extends Application {
#Override
public void onCreate() {
super.onCreate();
...
}
#Override
public void onTerminate() {
super.onTerminate();
}
...
}
[manifest.xml]
...
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
...
<application
android:name="com.***.***.MyApplication"
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
I've tried to find out to solve this problem.
I doubt it might be due to external SD card problem or 'public constructor'.
Because even I do not know how to reenact the situation, I can't be sure whether this is due to SD card or public constructor stuff.
I'm sure there's somebody who got this error and already know how to solve this.
Thus, please help me know what's wrong and how I can fix it.
Thanks.
add your class name in your manifest file. hope this solve your problem
<application android:icon="#drawable/icon" android:label="#string/app_name"
android:name=".MyApplication">
........
for further reading , how to extends Application class, read here.

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

Application crashes when is executed using Google maps api v2

I am trying to basically load a map using Google maps api v2 so i can start working on a more complex application.
My problem is that i followed all the instructions in:
https://developers.google.com/maps/documentation/android/
to setup the new settings for the google map api v2 that uses Google play lib.
Everything is set up fine but when i run the application it crashes(myapp stoped working)
I am using intellij so the applications was signed through "build|Generate signed apk" and to get my SHA1 code i used the file that is generated when the Generate signed apk is selected. I created a new project in Google console named MapTest to get the api key and placed that in the manifest as specified.
Now i know that the emulators usually are missing some staff such as the openGL ES so i installed the app on my phone (Galaxy s2) and the application is still crashing.
ps the google play lib was added
Emulator is google api 15 and everything is updated to latest versions.
Any help or input is deeply appreciated.
Bellow i am including my xml files so you can see if there is anything wrong.
main xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.google.android.gms.maps.MapFragment"/>
</LinearLayout>
AndroidManifest xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.MapTest"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:targetSdkVersion="15" android:minSdkVersion="8"/>
<application android:label="#string/app_name" android:icon="#drawable/ic_launcher">
<uses-library android:name="com.google.android.maps"/>
<activity android:name="MyActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="my api key goes here"/>
</application>
<permission
android:name="com.example.MapTest.permission.MAPS_RECEIVE"
android:protectionLevel="signature"/>
<uses-permission android:name="com.example.MapTest.permission.MAPS_RECEIVE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>
</manifest>
MyActivity class
nothing really change tho included just in case
package com.example.MapTest;
import android.app.Activity;
import android.os.Bundle;
import com.google.android.gms.maps.MapFragment;
public class MyActivity extends Activity {
/**
* Called when the activity is first created.
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
the log of the emulator
01-09 22:16:54.269: DEBUG/AndroidRuntime(1779): >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<<
01-09 22:16:54.269: DEBUG/AndroidRuntime(1779): CheckJNI is ON
01-09 22:16:55.766: DEBUG/AndroidRuntime(1779): Calling main entry com.android.commands.pm.Pm
01-09 22:16:56.059: DEBUG/dalvikvm(1031): GC_EXPLICIT freed 416K, 15% free 11721K/13703K, paused 9ms+19ms
01-09 22:16:56.099: WARN/ActivityManager(1031): No content provider found for permission revoke: file:///data/local/tmp/com.example.MapTest
01-09 22:16:56.139: WARN/ActivityManager(1031): No content provider found for permission revoke: file:///data/local/tmp/com.example.MapTest
01-09 22:16:56.379: INFO/PackageManager(1031): Removing non-system package:com.example.MapTest
01-09 22:16:56.379: INFO/ActivityManager(1031): Force stopping package com.example.MapTest uid=10044
01-09 22:16:56.529: INFO/PackageManager(1031): Package com.example.MapTest codePath changed from /data/app/com.example.MapTest-2.apk to /data/app/com.example.MapTest-1.apk; Retaining data and using new
01-09 22:16:56.529: INFO/PackageManager(1031): Running dexopt on: com.example.MapTest
01-09 22:16:57.781: DEBUG/dalvikvm(1790): DexOpt: load 230ms, verify+opt 493ms
01-09 22:16:57.809: WARN/PackageManager(1031): Code path for pkg : com.example.MapTest changing from /data/app/com.example.MapTest-2.apk to /data/app/com.example.MapTest-1.apk
01-09 22:16:57.809: WARN/PackageManager(1031): Resource path for pkg : com.example.MapTest changing from /data/app/com.example.MapTest-2.apk to /data/app/com.example.MapTest-1.apk
01-09 22:16:57.829: INFO/ActivityManager(1031): Force stopping package com.example.MapTest uid=10044
01-09 22:16:57.939: DEBUG/PackageManager(1031): New package installed in /data/app/com.example.MapTest-1.apk
01-09 22:16:57.949: WARN/PackageManager(1031): Unknown permission android.permission.ADD_SYSTEM_SERVICE in package com.android.phone
01-09 22:16:57.949: WARN/PackageManager(1031): Unknown permission com.android.smspush.WAPPUSH_MANAGER_BIND in package com.android.phone
01-09 22:16:57.959: WARN/PackageManager(1031): Unknown permission com.android.vending.billing.BILLING_ACCOUNT_SERVICE in package com.google.android.gsf.login
01-09 22:16:57.959: WARN/PackageManager(1031): Unknown permission com.android.vending.billing.ADD_CREDIT_CARD in package com.google.android.gsf.login
01-09 22:16:57.959: WARN/PackageManager(1031): Unknown permission com.android.vending.billing.IBillingAccountService.BIND2 in package com.google.android.gsf.login
01-09 22:16:57.959: WARN/PackageManager(1031): Not granting permission android.permission.SEND_DOWNLOAD_COMPLETED_INTENTS to package com.android.browser (protectionLevel=2 flags=0x9be45)
01-09 22:16:57.959: WARN/PackageManager(1031): Not granting permission android.permission.BIND_APPWIDGET to package com.android.widgetpreview (protectionLevel=3 flags=0x28be44)
01-09 22:16:57.989: WARN/PackageManager(1031): Unknown permission com.android.providers.im.permission.READ_ONLY in package com.google.android.apps.maps
01-09 22:16:57.989: WARN/PackageManager(1031): Not granting permission android.permission.DEVICE_POWER to package com.android.deskclock (protectionLevel=2 flags=0x8be45)
01-09 22:16:58.299: DEBUG/dalvikvm(1031): GC_CONCURRENT freed 544K, 15% free 11758K/13703K, paused 9ms+12ms
01-09 22:16:58.489: INFO/ActivityManager(1031): Force stopping package com.example.MapTest uid=10044
01-09 22:16:58.639: DEBUG/dalvikvm(1126): GC_EXPLICIT freed 250K, 7% free 11414K/12231K, paused 5ms+7ms
01-09 22:16:58.869: DEBUG/dalvikvm(1166): GC_EXPLICIT freed 172K, 4% free 9398K/9735K, paused 10ms+9ms
01-09 22:16:59.159: DEBUG/dalvikvm(1031): GC_EXPLICIT freed 191K, 15% free 11704K/13703K, paused 7ms+14ms
01-09 22:16:59.259: DEBUG/PackageManager(1031): generateServicesMap(android.accounts.AccountAuthenticator): 3 services unchanged
01-09 22:16:59.409: DEBUG/PackageManager(1031): generateServicesMap(android.content.SyncAdapter): 5 services unchanged
01-09 22:16:59.431: DEBUG/BackupManagerService(1031): Received broadcast Intent { act=android.intent.action.PACKAGE_REMOVED dat=package:com.example.MapTest flg=0x10000010 (has extras) }
01-09 22:16:59.459: DEBUG/PackageManager(1031): generateServicesMap(android.accounts.AccountAuthenticator): 3 services unchanged
01-09 22:16:59.479: DEBUG/PackageManager(1031): generateServicesMap(android.content.SyncAdapter): 5 services unchanged
01-09 22:16:59.599: DEBUG/BackupManagerService(1031): Received broadcast Intent { act=android.intent.action.PACKAGE_ADDED dat=package:com.example.MapTest flg=0x10000010 (has extras) }
01-09 22:16:59.629: VERBOSE/BackupManagerService(1031): updatePackageParticipantsLocked: #1
01-09 22:17:00.642: WARN/RecognitionManagerService(1031): no available voice recognition services found
01-09 22:17:00.889: DEBUG/BackupManagerService(1031): Received broadcast Intent { act=android.intent.action.PACKAGE_REPLACED dat=package:com.example.MapTest flg=0x10000010 (has extras) }
01-09 22:17:00.889: VERBOSE/BackupManagerService(1031): updatePackageParticipantsLocked: #1
01-09 22:17:01.519: DEBUG/dalvikvm(1031): GC_EXPLICIT freed 528K, 14% free 11847K/13703K, paused 7ms+17ms
01-09 22:17:02.069: DEBUG/AndroidRuntime(1779): Shutting down VM
01-09 22:17:02.089: INFO/AndroidRuntime(1779): NOTE: attach of thread 'Binder Thread #3' failed
01-09 22:17:02.089: DEBUG/dalvikvm(1779): GC_CONCURRENT freed 101K, 78% free 456K/2048K, paused 2ms+4ms
01-09 22:17:02.099: DEBUG/jdwp(1779): Got wake-up signal, bailing out of select
01-09 22:17:02.099: DEBUG/dalvikvm(1779): Debugger has detached; object registry had 1 entries
01-09 22:17:02.789: DEBUG/AndroidRuntime(1795): >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<<
01-09 22:17:02.789: DEBUG/AndroidRuntime(1795): CheckJNI is ON
01-09 22:17:03.949: DEBUG/AndroidRuntime(1795): Calling main entry com.android.commands.am.Am
01-09 22:17:03.989: INFO/ActivityManager(1031): START {flg=0x10000000 cmp=com.example.MapTest/.MyActivity} from pid 1795
01-09 22:17:04.029: WARN/WindowManager(1031): Failure taking screenshot for (180x300) to layer 21005
01-09 22:17:04.111: DEBUG/AndroidRuntime(1795): Shutting down VM
01-09 22:17:04.139: DEBUG/dalvikvm(1806): Not late-enabling CheckJNI (already on)
01-09 22:17:04.139: INFO/AndroidRuntime(1795): NOTE: attach of thread 'Binder Thread #3' failed
01-09 22:17:04.159: DEBUG/dalvikvm(1795): GC_CONCURRENT freed 101K, 77% free 486K/2048K, paused 1ms+5ms
01-09 22:17:04.159: DEBUG/jdwp(1795): Got wake-up signal, bailing out of select
01-09 22:17:04.159: DEBUG/dalvikvm(1795): Debugger has detached; object registry had 1 entries
01-09 22:17:04.209: INFO/ActivityManager(1031): Start proc com.example.MapTest for activity com.example.MapTest/.MyActivity: pid=1806 uid=10044 gids={3003, 1015}
01-09 22:17:04.649: WARN/NetworkManagementSocketTagger(1031): setKernelCountSet(10044, 1) failed with errno -2
01-09 22:17:05.269: INFO/Process(1031): Sending signal. PID: 1806 SIG: 3
01-09 22:17:05.309: INFO/dalvikvm(1806): threadid=3: reacting to signal 3
01-09 22:17:05.429: INFO/dalvikvm(1806): Wrote stack traces to '/data/anr/traces.txt'
01-09 22:17:05.599: WARN/dalvikvm(1806): VFY: unable to resolve static field 40 (MapAttrs) in Lcom/google/android/gms/R$styleable;
01-09 22:17:05.599: DEBUG/dalvikvm(1806): VFY: replacing opcode 0x62 at 0x000e
01-09 22:17:05.609: DEBUG/AndroidRuntime(1806): Shutting down VM
01-09 22:17:05.609: WARN/dalvikvm(1806): threadid=1: thread exiting with uncaught exception (group=0x409c01f8)
01-09 22:17:05.629: ERROR/AndroidRuntime(1806): FATAL EXCEPTION: main
java.lang.NoClassDefFoundError: com.google.android.gms.R$styleable
at com.google.android.gms.maps.GoogleMapOptions.createFromAttributes(Unknown Source)
at com.google.android.gms.maps.MapFragment.onInflate(Unknown Source)
at android.app.Activity.onCreateView(Activity.java:4242)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:673)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:251)
at android.app.Activity.setContentView(Activity.java:1835)
at com.example.MapTest.MyActivity.onCreate(MyActivity.java:13)
at android.app.Activity.performCreate(Activity.java:4465)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
at android.app.ActivityThread.access$600(ActivityThread.java:123)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4424)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
01-09 22:17:05.649: WARN/ActivityManager(1031): Force finishing activity com.example.MapTest/.MyActivity
01-09 22:17:05.659: WARN/WindowManager(1031): Failure taking screenshot for (180x300) to layer 21010
01-09 22:17:05.680: INFO/Process(1031): Sending signal. PID: 1806 SIG: 3
01-09 22:17:05.680: INFO/dalvikvm(1806): threadid=3: reacting to signal 3
01-09 22:17:05.699: INFO/dalvikvm(1806): Wrote stack traces to '/data/anr/traces.txt'
01-09 22:17:06.169: WARN/ActivityManager(1031): Activity pause timeout for ActivityRecord{4146dc60 com.example.MapTest/.MyActivity}
01-09 22:17:06.209: INFO/Process(1031): Sending signal. PID: 1806 SIG: 3
01-09 22:17:06.209: INFO/dalvikvm(1806): threadid=3: reacting to signal 3
01-09 22:17:06.229: INFO/dalvikvm(1806): Wrote stack traces to '/data/anr/traces.txt'
01-09 22:17:06.589: WARN/NetworkManagementSocketTagger(1031): setKernelCountSet(10044, 0) failed with errno -2
01-09 22:17:07.899: INFO/Process(1806): Sending signal. PID: 1806 SIG: 9
01-09 22:17:07.919: INFO/ActivityManager(1031): Process com.example.MapTest (pid 1806) has died.
01-09 22:17:08.109: WARN/InputManagerService(1031): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy#414b9608
At the moment it is not possible to run Google Android Maps v2 on emulator (see response from Android devs here). You should use real device instead.
However, you can look for updates in this thread - looks like someone managed to create emulator which supports Google Android Maps v2
EDIT:
I can see some problem in your code:
You should extend android.support.v4.app.FragmentActivity, but not regular Activity class.
Also make sure you have added GooglePlayServices project (actually imported entire project) but not just a jar file. If you are using Eclipse, import the library project into your workspace. Click File > Import, select Android > Existing Android Code into Workspace, and browse to the copy of the library project to import it.
I finally fixed the problem. Google has a very bad tutorial. First of all thank you Pavel Dudka for the big help.
i imported google play lib as module and then google play lib as jar then i also added onother jar file android.suport.v4.jar were is can be found as the name is exmaple android\suppor\v4
After those modifications and with the recomentations the map did not work so i added the modified fragment bellow instead of using the one google provited and the map worked like a charm.
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="wrap_content"
android:layout_height="match_parent" />

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