Develop Reference

Could not find class 'android.graphics.drawable.RippleDrawable'

I'm using a third party library, there is a method using DrawableCompat.setTintMode(drawable, PorterDuff.Mode.SRC_IN);. When I test my app in android 5.0+,there was no problem and worked well.But when it came to android 4.4.4, it threw an Exception:
05-09 13:15:15.030 26447-26447/com.wizchen.athit E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.wizchen.athit, PID: 26447
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wizchen.athit/com.wizchen.athit.view.activity.MainActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2271)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2320)
at android.app.ActivityThread.access$800(ActivityThread.java:138)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5117)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at android.support.v4.graphics.drawable.DrawableWrapperDonut.setCompatTintMode(DrawableWrapperDonut.java:278)
at android.support.v4.graphics.drawable.DrawableCompatBase.setTintMode(DrawableCompatBase.java:48)
at android.support.v4.graphics.drawable.DrawableCompat$BaseDrawableImpl.setTintMode(DrawableCompat.java:99)
at android.support.v4.graphics.drawable.DrawableCompat.setTintMode(DrawableCompat.java:400)
at com.wizchen.athit.lib.AppThemeEngine.util.TintHelper.createTintedDrawable(TintHelper.java:359)
at com.wizchen.athit.lib.AppThemeEngine.viewprocessors.ToolbarProcessor.process(ToolbarProcessor.java:117)
at com.wizchen.athit.lib.AppThemeEngine.viewprocessors.ToolbarProcessor.process(ToolbarProcessor.java:44)
at com.wizchen.athit.lib.AppThemeEngine.ATE.postApply(ATE.java:209)
at com.wizchen.athit.lib.AppThemeEngine.ATEActivity.onStart(ATEActivity.java:60)
at com.wizchen.athit.view.activity.MainActivity.onStart(MainActivity.java:68)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1183)
at android.app.Activity.performStart(Activity.java:5359)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2244)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2320)
at android.app.ActivityThread.access$800(ActivityThread.java:138)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5117)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Except the stack trace above, I saw some error info printed in my console like this:
05-09 13:15:15.030 26447-26447/com.wizchen.athit E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method com.wizchen.athit.lib.AppThemeEngine.util.TintHelper.setTintAuto
And this one:
05-09 13:15:15.030 26447-26447/com.wizchen.athit E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method com.wizchen.athit.lib.AppThemeEngine.util.TintHelper.setTintSelector
Of course I have compiled the v4 support library in my project :)
Who have encountered this problem? Thanks for help!
------------------------------------------------------------------------------------------
Update 1:
this is what causes NullPointerException:
#CheckResult
#Nullable
public static Drawable createTintedDrawable(#Nullable Drawable drawable, #ColorInt int color) {
if (drawable == null) return null;
drawable = DrawableCompat.wrap(drawable.mutate());
DrawableCompat.setTintMode(drawable, PorterDuff.Mode.SRC_IN);
DrawableCompat.setTint(drawable, color);
return drawable;
}

Read this :
If you look at the source code for DrawableCompat you will see that for any version < support library 21 the method does nothing.
The idea of DrawableCompat seems to be simply not crashing on old versions, rather than actually providing that functionality.
UseFul Tips :
With support library 22.1 you can use DrawableCompat to tint drawables.
DrawableCompat.wrap(Drawable) and setTint(), setTintList(), and
setTintMode() will just work: no need to create and maintain separate
drawables only to support multiple colors!

i used ?colorPrimary for creating button background and its sake error in my project , and i change ?colorPrimary to #color/colorPrimary and its work for me :)

IBM MobileFirst - Native Android Application adding push manifest permissions

I am confused about the permissions section for IBM's MobileFirst GMS Push notifications found here. (Section 5)
https://developer.ibm.com/mobilefirstplatform/documentation/getting-started-7-0/notifications/push-notification-native-android-applications/
I have added all of these permissions verbatim, but im getting an error saying i havn't added manifest permissions. Do i need to modify the package names in these permissions?
Is this activity built in?
<activity
android:name="com.worklight.androidnativepush.AndroidNativePush"
android:label="#string/app_name"
android:theme="#android:style/Theme.Black.NoTitleBar"
android:launchMode="singleTask">
Here is the error logcat
07-25 23:24:48.285 17146-17146/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.companyname.hitch.mobilefirsttestapp, PID: 17146
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.companyname.hitch.mobilefirsttestapp/com.companyname.hitch.mobilefirsttestapp.push.PushActivity}: java.lang.RuntimeException: Your manifest is not allowed to work with push. Android Manifest Error: Missing permission in manifest: com.companyname.hitch.mobilefirsttestapp.permission.C2D_MESSAGE
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: Your manifest is not allowed to work with push. Android Manifest Error: Missing permission in manifest: com.companyname.hitch.mobilefirsttestapp.permission.C2D_MESSAGE
at com.worklight.wlclient.api.WLPush.<init>(WLPush.java:180)
at com.worklight.wlclient.api.WLClient.getPush(WLClient.java:957)
at com.companyname.hitch.mobilefirsttestapp.push.PushActivity.onCreate(PushActivity.java:19)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)

When creating a MobileFirst-based Hybrid app with the Android environment, MobileFirst will be creating it based on a template with a set of predefined permissions and activities.
In a native application, you are the one creating it. MobileFirst only supplies you with the SDK and a set of integration instructions.
The activity that you mentioned in the question (taken from the tutorial page) is the activity of the sample application included in the tutorial. In your own app's AndroidManifest.xml you will see your app's name instead of "androidnativepush" (or rather need to create it).
Make sure not to use "androidnativepush" anywhere unless that is your app name.

com.facebook.FacebookGraphObjectException: Factory can't proxy method: public abstract void com.facebook.model.GraphUser.setBirthday()

I have been editing the FriendPikcerSample provided by Facebook SDK for Android (latest version).
A couple of hours ago I successfully inserted a listview instead of a textview, so that when I select a name in the ListView, I can fetch more details of the user in the further activity
But Now, after restarting my PC, the app is behaving weird. When I launch it and click on "Pick Friends", it should be showing the list of friends who are using the app. Instead, now the app crashes and logcat shows this error.
12-30 07:35:15.820 2238-2238/com.facebook.samples.friendpicker E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.facebook.samples.friendpicker, PID: 2238
com.facebook.FacebookGraphObjectException: Factory can't proxy method: public abstract void com.facebook.model.GraphUser.setBirthday()
at com.facebook.model.GraphObject$Factory.verifyCanProxyClass(GraphObject.java:290)
at com.facebook.model.GraphObject$Factory.createGraphObjectProxy(GraphObject.java:216)
at com.facebook.model.GraphObject$Factory.coerceValueToExpectedType(GraphObject.java:340)
at com.facebook.model.GraphObject$Factory$GraphObjectListImpl.get(GraphObject.java:772)
at java.util.AbstractList$SimpleListIterator.next(AbstractList.java:55)
at java.util.AbstractCollection.toArrayList(AbstractCollection.java:349)
at java.util.AbstractCollection.toArray(AbstractCollection.java:339)
at java.util.ArrayList.addAll(ArrayList.java:188)
at com.facebook.widget.SimpleGraphObjectCursor.addGraphObjects(SimpleGraphObjectCursor.java:46)
at com.facebook.widget.GraphObjectPagingLoader.addResults(GraphObjectPagingLoader.java:203)
at com.facebook.widget.GraphObjectPagingLoader.requestCompleted(GraphObjectPagingLoader.java:186)
at com.facebook.widget.GraphObjectPagingLoader.access$000(GraphObjectPagingLoader.java:27)
at com.facebook.widget.GraphObjectPagingLoader$2.onCompleted(GraphObjectPagingLoader.java:134)
at com.facebook.Request$4.run(Request.java:1666)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Can anyone help me understand what's gone wrong?

ProGuard : Android PortSip obfuscation

After obfuscated the code, I have the truncated error log:
08-05 14:54:34.587 15299-15299/sn.ok E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: sn.ok, PID: 15299
java.lang.NoSuchMethodError: no static or non-static method "Lcom/portsip/PortSipSdk;.unInitializeSDK()V"
at java.lang.Runtime.nativeLoad(Native Method)
How to obfuscate the following code :
static {
System.loadLibrary("portsipcore");
}
Edit: After adding the last code, I get this error
08-17 19:11:36.517 16967-16967/sn.ok E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: sn.ok, PID: 16967
java.lang.NoSuchMethodError: no method with name='receiveSIPEvent' signature='(I)V' in class sn/ok/PortSipSdk;
at sn.ok.PortSipSdk.initializeSDK(Native Method)
at sn.ok.MyApplicationFubu$1.onPostExecute(SourceFile:331)
at android.os.AsyncTask.finish(AsyncTask.java:632)
at android.os.AsyncTask.access$600(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5356)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
at dalvik.system.NativeStart.main(Native Method)

The native code is invoking the Java code. ProGuard doesn't (can't) know this, so you have to explicitly preserve the called classes, fields, and methods from being removed or renamed:
-keep class com.portsip.PortSipSdk {
void unInitializeSDK();
}
See the ProGuard manual > Examples > Processing callback methods

Android Service Exchange always crashs

I'm getting a crash always when I install or uninstall an app that use Sync Service, like Facebook, whatsup, etc.
"Unfortunately, Exchange Services has stopped."
I don't know why, but it just happens for some devices, in my case all of then are Android 4.4.2.
First I thought it's my app's fault, but it doesn't make sense once I uninstall my app and the problem continues happening for others apps.
Do you know something about it?
Thank you.
02-07 14:31:49.864 3015-3015/? E/ActivityThread﹕ Failed to find provider info for com.google.android.email.provider
02-07 14:31:49.864 3015-3015/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.google.android.exchange, PID: 3015
java.lang.RuntimeException: Unable to create application com.android.exchange.Exchange: java.lang.IllegalArgumentException: Unknown URI content://com.google.android.email.provider
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4347)
at android.app.ActivityThread.access$1500(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalArgumentException: Unknown URI content://com.google.android.email.provider
at android.content.ContentResolver.call(ContentResolver.java:1352)
at com.android.exchange.Exchange.onCreate(Exchange.java:34)
at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1007)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4344)
at android.app.ActivityThread.access$1500(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)

I found what was happening!
The problem occurs by device when there are sync accounts registered, but the Exchange Service cannot find any application to answer the URI, in my case it was "content://com.google.android.email.provider", to fix it I checked my disable applications and there was it, my default email application was disable. I just enable it again and the problem never occurs again.

Go to Settings > Apps > ALL> Exchange Services > Clear Cache and try opening it. When it opens, check once.

I had that problem. now I’m using a good app called Mailwise. it’s a free email app, very convenient for businesses, you can easily set up multiple email accounts, and it works great with Exchange.
https://play.google.com/store/apps/details?id=com.syntomo.email&hl=en