解决：java.lang.OutOfMemoryError: Failed to allocate a 20971532 byte allocation with 4194304 free bytes and 7MB until OOM

05-13 19:10:53.922 15103-15103/? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.a14412.tvoid1, PID: 15103
    java.lang.OutOfMemoryError: Failed to allocate a 20971532 byte allocation with 4194304 free bytes and 7MB until OOM
        at dalvik.system.VMRuntime.newNonMovableArray(Native Method)
        at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
        at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:709)
        at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:544)
        at android.graphics.BitmapFactory.decodeResource(BitmapFactory.java:567)
        at android.graphics.BitmapFactory.decodeResource(BitmapFactory.java:597)
        at com.example.a14412.tvoid1.pusher.ScreencaptureActivity.onCreate(ScreencaptureActivity.java:100)
        at android.app.Activity.performCreate(Activity.java:6336)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1113)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2541)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2676)
        at android.app.ActivityThread.-wrap11(ActivityThread.java)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1510)
        at android.os.Handler.dispatchMessage(Handler.java:111)
        at android.os.Looper.loop(Looper.java:207)
        at android.app.ActivityThread.main(ActivityThread.java:5786)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)

AndroidManifest.xml:添加这两个，我加在了application层级

也可以加在activity级

android:largeHeap="true"
android:hardwareAccelerated="false"

<application
        android:name=".im.ImApplication"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:largeHeap="true"
        android:hardwareAccelerated="false"
        android:theme="@style/AppTheme">