6
我試圖做一個系統覆蓋窗口，它也會出現在鎖屏上。我確實在版本6.0上做到了這一點，但它不適用於版本7.0和8.0。第一次運行時，我被轉移到我的應用程序的覆蓋設置（如Android M &起，預計），我允許它。但現在它不斷崩潰，因爲我試圖從應用程序啓動服務。 我想這是有關這個問題的所有事情，但沒有什麼幫助我解決我每次嘗試啓動該服務時它yet.I'm收到此錯誤： -
FATAL EXCEPTION: main
Process: com.example.sumuix.lockdown, PID: 5128
java.lang.RuntimeException: Unable to create service com.example.sumuix.lockdown.MyService:android.view.WindowManager$BadTokenException: Unable to add window [email protected] -- permission denied for window type 2010
at android.app.ActivityThread.handleCreateService(ActivityThread.java:3414)
at android.app.ActivityThread.-wrap4(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1683)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6540)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
Caused by: android.view.WindowManager$BadTokenException: Unable to add window [email protected] -- permission denied for window type 2010
at android.view.ViewRootImpl.setView(ViewRootImpl.java:788)
at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:356)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:92)
at com.example.sumuix.lockdown.MyService.onCreate(MyService.java:64)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:3404)
at android.app.ActivityThread.-wrap4(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1683)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6540)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
這裏是我的代碼:-(MyService.java）
@Override
public void onCreate() {
super.onCreate();
HeadView = LayoutInflater.from(this).inflate(R.layout.overlay_head,null);
final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.WRAP_CONTENT,
WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,
PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 100;
mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
mWindowManager.addView(HeadView, params); //I’m getting error here...(MyService.java:64)from error log
ImageView closeButton = (ImageView) HeadView.findViewById(R.id.close_btn);
closeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
stopSelf();
}
});
final ImageView chatHeadImage = (ImageView) HeadView.findViewById(R.id.head);
chatHeadImage.setOnTouchListener(new View.OnTouchListener() {
//Code for OnTouch.
}
});
}
我的MainActivity，當我打電話給上述服務： - （MyActivity.java）
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
back=(Button) findViewById(R.id.jump);
final Intent intentService=new Intent(MainActivity.this, MyService.class);
if (Build.VERSION.SDK_INT >= 23 && !Settings.canDrawOverlays(MainActivity.this)) {
//If the draw over permission is not available open the settings screen
//to grant the permission.
Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION,
Uri.parse("package:" + getPackageName()));
startActivityForResult(intent,1234);
}else {
back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
startService(intentService);
finish();
}
});
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1234) {
//Check if the permission is granted or not.
if (Build.VERSION.SDK_INT >= 23 && Settings.canDrawOverlays(MainActivity.this)) {
back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
startService(new Intent(MainActivity.this, MyService.class));
finish();
}
});
} else { //Permission is not available
Toast.makeText(this,
"Draw over other app permission not available. Closing the application",
Toast.LENGTH_SHORT).show();
finish();
}
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
在manifeast： -
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
爲MyService佈局XML： -
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/chat_head_root"
android:layout_width="65dp"
android:layout_height="wrap_content"
android:background="@android:color/black"
android:orientation="vertical">
<ImageView
android:id="@+id/head"
android:layout_width="60dp"
android:layout_height="60dp"
android:layout_marginTop="8dp"
android:background="@android:drawable/ic_menu_info_details"
tools:ignore="ContentDescription" />
<ImageView
android:id="@+id/close_btn"
android:layout_width="26dp"
android:layout_height="26dp"
android:layout_marginLeft="40dp"
android:background="@android:drawable/ic_menu_close_clear_cancel"
tools:ignore="ContentDescription" />
</RelativeLayout>
我想幾乎我發現，而在internet.I搜索剛剛開始使用Android所以，如果我做的任何微小的失誤，那麼請讓每一件事情我知道它。提前感謝。