Using ViewGroup throws NullPointerException - android

Does anyone have a clue what could be causing this?
11-16 16:23:26.745: ERROR/AndroidRuntime(9549): Uncaught handler: thread main exiting due to uncaught exception
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): java.lang.NullPointerException
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:692)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at android.view.ViewGroup.dispatchWindowVisibilityChanged(ViewGroup.java:692)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at android.view.ViewRoot.performTraversals(ViewRoot.java:722)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at android.view.ViewRoot.handleMessage(ViewRoot.java:1658)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at android.os.Handler.dispatchMessage(Handler.java:99)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at android.os.Looper.loop(Looper.java:123)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at android.app.ActivityThread.main(ActivityThread.java:4363)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at java.lang.reflect.Method.invokeNative(Native Method)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at java.lang.reflect.Method.invoke(Method.java:521)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:862)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
11-16 16:23:26.765: ERROR/AndroidRuntime(9549): at dalvik.system.NativeStart.main(Native Method)

This error used to show up in our crash reports with some regularity. It was very difficult to track down, but in the end we discovered that we sometimes triggered code that removed a view from the view hierarchy from surfaceDestroyed() (the callback method from SurfaceHolder). If your app is using a SurfaceView, make sure you don't do anything to modify the view hierarchy in surfaceDestroyed().

Related

Cannot ever get my android app to run? [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.
Closed 10 years ago.
I have spent almost two weeks now just trying to run my android game. Every time I run it on my phone from Eclipse it crashes and says "The process closed unexpectedly, please try again" or something like that. I created a new project with just an activity and other basic classes to see what the problem was, and I still get the message. I am not new to Java but am new to android, and I am having a very hard time debugging. I always get this error:
11-16 14:15:55.613: D/AndroidRuntime(9468): Shutting down VM
11-16 14:15:55.613: W/dalvikvm(9468): threadid=1: thread exiting with uncaught exception (group=0x4001d570)
11-16 14:15:55.613: E/AndroidRuntime(9468): FATAL EXCEPTION: main
11-16 14:15:55.613: E/AndroidRuntime(9468): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.stickman.revolution/com.example.stickman.revolution.MainActivity}: java.lang.ClassNotFoundException: com.example.stickman.revolution.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.stickman.revolution-2.apk]
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1569)
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.app.ActivityThread.access$1500(ActivityThread.java:117)
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.os.Handler.dispatchMessage(Handler.java:99)
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.os.Looper.loop(Looper.java:130)
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.app.ActivityThread.main(ActivityThread.java:3683)
11-16 14:15:55.613: E/AndroidRuntime(9468): at java.lang.reflect.Method.invokeNative(Native Method)
11-16 14:15:55.613: E/AndroidRuntime(9468): at java.lang.reflect.Method.invoke(Method.java:507)
11-16 14:15:55.613: E/AndroidRuntime(9468): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
11-16 14:15:55.613: E/AndroidRuntime(9468): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
11-16 14:15:55.613: E/AndroidRuntime(9468): at dalvik.system.NativeStart.main(Native Method)
11-16 14:15:55.613: E/AndroidRuntime(9468): Caused by: java.lang.ClassNotFoundException: com.example.stickman.revolution.MainActivity in loader dalvik.system.PathClassLoader[/data/app/com.example.stickman.revolution-2.apk]
11-16 14:15:55.613: E/AndroidRuntime(9468): at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
11-16 14:15:55.613: E/AndroidRuntime(9468): at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
11-16 14:15:55.613: E/AndroidRuntime(9468): at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.app.Instrumentation.newActivity(Instrumentation.java:1021)
11-16 14:15:55.613: E/AndroidRuntime(9468): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1561)
11-16 14:15:55.613: E/AndroidRuntime(9468): ... 11 more
Here is the manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.stickman.revolution"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<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>
You are getting a ClassNotFoundException your MainActivity and therefore the Activity can't get launched. Check your Android Manifest and look if your Activity is registered.

Unable to load .so file in android with github bump demo

I hav downloaded bump demo from github but when i am running this its craching all the time with error log as
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): FATAL EXCEPTION: main
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): java.lang.UnsatisfiedLinkError: Library
android-api not found 11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
java.lang.Runtime.loadLibrary(Runtime.java:461)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
java.lang.System.loadLibrary(System.java:557)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at com.bump.api.BumpAPI.<init>
(BumpAPI.java:122)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
java.lang.Class.newInstanceImpl(Native Method)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
java.lang.Class.newInstance(Class.java:1429)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
android.app.ActivityThread.handleCreateService(ActivityThread.java:2940)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
android.app.ActivityThread.access$3300(ActivityThread.java:125)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
android.app.ActivityThread$H.handleMessage(ActivityThread.java:2087)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
android.os.Handler.dispatchMessage(Handler.java:99)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
android.os.Looper.loop(Looper.java:123)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
android.app.ActivityThread.main(ActivityThread.java:4627)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
java.lang.reflect.Method.invokeNative(Native Method)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
java.lang.reflect.Method.invoke(Method.java:521)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-16 12:33:01.632: ERROR/AndroidRuntime(4298): at
dalvik.system.NativeStart.main(Native Method)
while i am using this bloack of code for loading it in onCreate
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
//System.loadLibrary("mysharedlibrary");
//crashing on this line
System.loadLibrary("libgifflen.so");
} catch (UnsatisfiedLinkError use) {
Log.e("JNI", "WARNING: Could not load libmysharedlibrary.so");
System.out.println("warning "+use.getMessage());
}
//.......some other code
}
I think i am missing something very string thing but i am unable to find any such thing or unable to get something for this
This is how I have imported the bump-library to my project and it works.
Import in your eclipse the bump-api-library project
Select the bump-api-library > Properties > Android > Make sure the "Is Library" is selected > Click "Apply" then "OK"
Select your project > Properties > Android > Click the "Add" button > select the "bump-api-library" > Click "Apply" then "OK"

error with having 2 spinner

I have this type of error can you help me how can i solve it
or what is the problem
knowing that this code i use it with other spinner with other class and it is work
so it kind of confusing me
dose the problem having because i have to spinner or it not?
her is my logcat
11-16 21:56:27.841: E/AndroidRuntime(794): FATAL EXCEPTION: main
11-16 21:56:27.841: E/AndroidRuntime(794): java.lang.NullPointerException
11-16 21:56:27.841: E/AndroidRuntime(794): at android.widget.ArrayAdapter.getCount(ArrayAdapter.java:291)
11-16 21:56:27.841: E/AndroidRuntime(794): at android.widget.AbsSpinner.setAdapter(AbsSpinner.java:113)
11-16 21:56:27.841: E/AndroidRuntime(794): at com.example.test1.MainActivity$LoadAllSection.onPostExecute(MainActivity.java:220)
11-16 21:56:27.841: E/AndroidRuntime(794): at com.example.test1.MainActivity$LoadAllSection.onPostExecute(MainActivity.java:1)
11-16 21:56:27.841: E/AndroidRuntime(794): at android.os.AsyncTask.finish(AsyncTask.java:417)
11-16 21:56:27.841: E/AndroidRuntime(794): at android.os.AsyncTask.access$300(AsyncTask.java:127)
11-16 21:56:27.841: E/AndroidRuntime(794): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429)
11-16 21:56:27.841: E/AndroidRuntime(794): at android.os.Handler.dispatchMessage(Handler.java:99)
11-16 21:56:27.841: E/AndroidRuntime(794): at android.os.Looper.loop(Looper.java:123)
11-16 21:56:27.841: E/AndroidRuntime(794): at android.app.ActivityThread.main(ActivityThread.java:4627)
11-16 21:56:27.841: E/AndroidRuntime(794): at java.lang.reflect.Method.invokeNative(Native Method)
11-16 21:56:27.841: E/AndroidRuntime(794): at java.lang.reflect.Method.invoke(Method.java:521)
11-16 21:56:27.841: E/AndroidRuntime(794): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-16 21:56:27.841: E/AndroidRuntime(794): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-16 21:56:27.841: E/AndroidRuntime(794): at dalvik.system.NativeStart.main(Native Method)
From the logcat:
Caused by: java.lang.NullPointerException
at com.example.test1.MainActivity$LoadAllSection.doInBackground(MainActivity.java:195)
And since you said this is line 195:
sectionList.add(map1);
It simply means that sectionList is null, you forgot to initialize it with:
sectionList = new ArrayList<HashMap<String, String>>();
Ok, with your new LogCat the trouble starts with line 220, which appears to be:
spinner2.setAdapter(adapter2);
Once again sectionList is to blame, this error only occurs when you try to pass an adapter bound to a null dataset.

App stopped unexpectedly when exited

My application stopped unexpectedly when I pressed the back button and needed to be forced closed. Here's the error log:
11-16 14:57:34.595: E/AndroidRuntime(4899): FATAL EXCEPTION: main
11-16 14:57:34.595: E/AndroidRuntime(4899): java.lang.IllegalStateException
11-16 14:57:34.595: E/AndroidRuntime(4899): at android.media.MediaPlayer.getDuration(Native Method)
11-16 14:57:34.595: E/AndroidRuntime(4899): at com.example.musicshare.AndroidBuildingMusicPlayerActivity$1.run(AndroidBuildingMusicPlayerActivity.java:337)
11-16 14:57:34.595: E/AndroidRuntime(4899): at android.os.Handler.handleCallback(Handler.java:587)
11-16 14:57:34.595: E/AndroidRuntime(4899): at android.os.Handler.dispatchMessage(Handler.java:92)
11-16 14:57:34.595: E/AndroidRuntime(4899): at android.os.Looper.loop(Looper.java:123)
11-16 14:57:34.595: E/AndroidRuntime(4899): at android.app.ActivityThread.main(ActivityThread.java:3691)
11-16 14:57:34.595: E/AndroidRuntime(4899): at java.lang.reflect.Method.invokeNative(Native Method)
11-16 14:57:34.595: E/AndroidRuntime(4899): at java.lang.reflect.Method.invoke(Method.java:507)
11-16 14:57:34.595: E/AndroidRuntime(4899): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
11-16 14:57:34.595: E/AndroidRuntime(4899): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
11-16 14:57:34.595: E/AndroidRuntime(4899): at dalvik.system.NativeStart.main(Native Method)
What could be the problem?
See your log:
11-12 14:21:20.080: E/AndroidRuntime(8843): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.example.musicshare/com.example.musicshare.ZoneActivity}; have you declared this activity in your AndroidManifest.xml?
You have not declared ZoneActivity on your Android Manifest.. open your Android Manifest and add:
<activity android:name=".ZoneActivity" />
That's the information that is interesting for you:
Unable to find explicit activity class com.example.musicshare/com.example.musicshare.ZoneActivity}; have you declared this activity in your AndroidManifest.xml?
It seems like the Activity that is defined within your manifest does not exist in your code.

Get password from android account

I noticed from Android API, they have this method getPassword(Account account).
accountManager = AccountManager.get(this);
Account[] allGoogleAccounts = accountManager.getAccountsByType("com.google");
for (Account account : allGoogleAccounts)
{
System.out.println(accountManager.getPassword(account));
}
But I have this error:
11-16 10:49:08.986: WARN/System.err(5732): java.lang.SecurityException: caller uid 10039 is different than the authenticator's uid
11-16 10:49:09.038: WARN/System.err(5732): at android.os.Parcel.readException(Parcel.java:1247)
11-16 10:49:09.038: WARN/System.err(5732): at android.os.Parcel.readException(Parcel.java:1235)
11-16 10:49:09.045: WARN/System.err(5732): at android.accounts.IAccountManager$Stub$Proxy.getPassword(IAccountManager.java:415)
11-16 10:49:09.087: WARN/System.err(5732): at android.accounts.AccountManager.getPassword(AccountManager.java:277)
11-16 10:49:09.087: WARN/System.err(5732): at com.test.account.onCreate(account.java:30)
11-16 10:49:09.107: WARN/System.err(5732): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-16 10:49:09.107: WARN/System.err(5732): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
11-16 10:49:09.125: WARN/System.err(5732): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
11-16 10:49:09.125: WARN/System.err(5732): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
11-16 10:49:09.134: WARN/System.err(5732): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
11-16 10:49:09.156: WARN/System.err(5732): at android.os.Handler.dispatchMessage(Handler.java:99)
11-16 10:49:09.156: WARN/System.err(5732): at android.os.Looper.loop(Looper.java:123)
11-16 10:49:09.166: WARN/System.err(5732): at android.app.ActivityThread.main(ActivityThread.java:4627)
11-16 10:49:09.175: WARN/System.err(5732): at java.lang.reflect.Method.invokeNative(Native Method)
11-16 10:49:09.185: WARN/System.err(5732): at java.lang.reflect.Method.invoke(Method.java:521)
11-16 10:49:09.185: WARN/System.err(5732): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-16 10:49:09.195: WARN/System.err(5732): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-16 10:49:09.206: WARN/System.err(5732): at dalvik.system.NativeStart.main(Native Method)
Anyone can tell me my mistake?
From AccountManager.getPassword()
getPassword:
This method requires the caller to hold the permission AUTHENTICATE_ACCOUNTS and to have the same UID as the account's authenticator.
The way I see it you can only get the password if your app was the app that created the account in account manager (Could be mistaking though)
in account manager if you(your app) write the account then only you(your app) can get the password this is because of security that on app could get the password of the user that he used to sync in other app
you can get the password of the account the is created by your process UID every process have it own UID once it runs on the device and continue to have the same UID ever

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