java.lang.NoClassDefFoundError: android.media.projection.MediaProjectionManager

Question

MediaProjectionManager manager = 
     (MediaProjectionManager) activity.getSystemService(MEDIA_PROJECTION_SERVICE); 
    Intent intent = manager.createScreenCaptureIntent(); 
    activity.startActivityForResult(intent, CREATE_SCREEN_CAPTURE); 

bu benim kodudur ve eğer i

03-22 07:52:02.271 14831-14831/? E/dalvikvm: Could not find class 'android.media.projection.MediaProjectionManager', referenced from method com.zennaxx.marshmallowscreenrecorder.CaptureHelper.fireScreenCaptureIntent 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime: FATAL EXCEPTION: main 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime: Process: com.zennaxx.marshmallowscreenrecorder, PID: 14831 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime: java.lang.NoClassDefFoundError: android.media.projection.MediaProjectionManager 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at com.zennaxx.marshmallowscreenrecorder.CaptureHelper.fireScreenCaptureIntent(CaptureHelper.java:22) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at com.zennaxx.marshmallowscreenrecorder.ScreenRecorderActivity.onLaunchClicked(ScreenRecorderActivity.java:136) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at com.zennaxx.marshmallowscreenrecorder.ScreenRecorderActivity$$ViewBinder$6.doClick(ScreenRecorderActivity$$ViewBinder.java:80) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at butterknife.internal.DebouncingOnClickListener.onClick(DebouncingOnClickListener.java:22) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at android.view.View.performClick(View.java:4569) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at android.view.View$PerformClick.run(View.java:18570) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at android.os.Handler.handleCallback(Handler.java:733) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at android.os.Handler.dispatchMessage(Handler.java:95) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at android.os.Looper.loop(Looper.java:212) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at android.app.ActivityThread.main(ActivityThread.java:5135) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at java.lang.reflect.Method.invokeNative(Native Method) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at java.lang.reflect.Method.invoke(Method.java:515) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 
03-22 07:52:02.371 14831-14831/? E/AndroidRuntime:  at dalvik.system.NativeStart.main(Native Method) 

Answer 1

Bu istisna tipik (yani yaygın programlama hata) aşağıdaki hatayı alıyorum Uygulamayı çok düşük bir API düzeyine sahip bir cihazda başlatın. Sınıf API düzeyi 21 gerekir, bu yüzden build.gradle 21 min API düzeyi ayarlamanız gerekir veya bazı istisna işleme/dallanma