Following codes work perfectly in debug mode:
menu_post_view.xml
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context="com.mydream.bgz.activities.PostViewActivity">
<item
android:id="@+id/action_share"
android:title="@string/action_share"
app:actionProviderClass="android.support.v7.widget.ShareActionProvider"
app:showAsAction="always"/>
</menu>
PostViewActivity.java
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_post_view, menu);
ShareActionProvider mShareActionProvider;
MenuItem item = menu.findItem(R.id.action_share);
mShareActionProvider = (ShareActionProvider) MenuItemCompat.getActionProvider(item);
// mShareActionProvider.setOnShareTargetSelectedListener(this);
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
sharingIntent.putExtra(Intent.EXTRA_SUBJECT, str_mPostTitle);
sharingIntent.putExtra(Intent.EXTRA_TEXT, str_mPostUrl);
mShareActionProvider.setShareIntent(sharingIntent);
return super.onCreateOptionsMenu(menu);
}
Everything happens in onCreate() method. I surrounded all of my codes with try-catch and got a following printed stack trace.
06-13 20:36:41.817 689-689/? W/SupportMenuInflater: Cannot instantiate class: android.support.v7.widget.ShareActionProvider
java.lang.ClassNotFoundException: Didn't find class "android.support.v7.widget.ShareActionProvider" on path: DexPathList[[zip file "/data/app/com.mydream.bgzaz-1/base.apk"],nativeLibraryDirectories=[/data/app/com.mydream.bgzaz-1/lib/arm64, /vendor/lib64, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.support.v7.view.g$b.a(Unknown Source)
at android.support.v7.view.g$b.b(Unknown Source)
at android.support.v7.view.g.a(Unknown Source)
at android.support.v7.view.g.inflate(Unknown Source)
at com.mydream.bgz.activities.PostViewActivity.onCreateOptionsMenu(Unknown Source)
at android.app.Activity.onCreatePanelMenu(Activity.java:2881)
at android.support.v4.b.l.onCreatePanelMenu(Unknown Source)
at android.support.v7.view.i.onCreatePanelMenu(Unknown Source)
at android.support.v7.app.f$a.onCreatePanelMenu(Unknown Source)
at android.support.v7.view.i.onCreatePanelMenu(Unknown Source)
at android.support.v7.app.o.j(Unknown Source)
at android.support.v7.app.o$1.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5525)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
Suppressed: java.lang.ClassNotFoundException: android.support.v7.widget.ShareActionProvider
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 20 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
06-13 20:36:41.822 689-689/? D/AndroidRuntime: Shutting down VM
--------- beginning of crash
06-13 20:36:41.823 689-689/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.mydream.bgzaz, PID: 689
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.widget.bf.a(android.content.Intent)' on a null object reference
at com.mydream.bgz.activities.PostViewActivity.onCreateOptionsMenu(Unknown Source)
at android.app.Activity.onCreatePanelMenu(Activity.java:2881)
at android.support.v4.b.l.onCreatePanelMenu(Unknown Source)
at android.support.v7.view.i.onCreatePanelMenu(Unknown Source)
at android.support.v7.app.f$a.onCreatePanelMenu(Unknown Source)
at android.support.v7.view.i.onCreatePanelMenu(Unknown Source)
at android.support.v7.app.o.j(Unknown Source)
at android.support.v7.app.o$1.run(Unknown Source)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5525)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
06-13 20:36:41.828 1313-3539/? W/ActivityManager: Force finishing activity com.mydream.bgzaz/com.mydream.bgz.activities.PostViewActivity
build.gradle
compile files('libs/YouTubeAndroidPlayerApi.jar')
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support:design:25.3.1'
compile 'com.android.support:support-v4:25.3.1'
compile 'com.android.support:cardview-v7:25.3.1'
compile 'com.android.support:recyclerview-v7:25.3.1'
compile 'com.github.bumptech.glide:glide:3.7.0'
compile 'com.android.support:support-vector-drawable:25.3.1'
I have never faced with the problem like this. So, I could not understand why some normal codes do not work in release mode but debug build version. Please note that I did not write any share action menu related code in onCreate(). Please again, help me to understand why this problem occurred and how can I fix it?
That's because you are obfuscating your code on release mode.
Add this to your proguard config file.
-keep class android.support.v7.internal.** { *; }
-keep class android.support.v7.** { *; }
-keep interface android.support.v7.internal.** { *; }
-keep interface android.support.v7.** { *; }