Android可移动的悬浮窗

1.悬浮窗权限申请：

if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {if (!Settings.canDrawOverlays(getApplicationContext())) {Intent intent = new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION);startActivityForResult(intent, 100);} else {/*需要启动的service*/mIntent = new Intent(MainActivity.this, FloatWindowService.class);bindService(mIntent, serviceConnection, Context.BIND_AUTO_CREATE);//直接启动服务方式启动}
}private ServiceConnection serviceConnection = new ServiceConnection() {@Overridepublic void onServiceConnected(ComponentName name, IBinder service) {}@Overridepublic void onServiceDisconnected(ComponentName name) {}
};在Activity回调申请权限的结果：
@Override
public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data){super.onActivityResult(requestCode, resultCode, data);if (requestCode == 100) {if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {if (Settings.canDrawOverlays(this)) {Intent mIntent = new Intent(MainActivity.this,FloatWindowService.class);startService(mIntent);//直接启动服务方式启动}}}

2.创建悬浮窗:

WindowManager windowManager = (WindowManager) mContext.getSystemService(WINDOW_SERVICE);
// 设置LayoutParam
WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {layoutParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
} else {layoutParams.type = WindowManager.LayoutParams.TYPE_PHONE;
}
layoutParams.format = PixelFormat.RGBA_8888;
layoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
//宽高自适应
layoutParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
layoutParams.height = WindowManager.LayoutParams.WRAP_CONTENT;layoutParams.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_NOSENSOR; //竖屏
layoutParams.gravity = Gravity.START | Gravity.TOP;//显示的位置
layoutParams.x = ScreenManager.dipToPx(mContext, 14);
layoutParams.y = ScreenManager.dipToPx(mContext, 97);

View floatView = LayoutInflater.from(mContext).inflate(R.layout.window_float_view, null);

xml内部布局

<LinearLayoutandroid:id="@+id/layout_voice_broadcast"android:layout_width="100dp"android:layout_height="40dp"
android:background="@color/color_FF198CFF"
android:orientation="horizontal"tools:ignore="UselessLeaf,UselessParent"></LinearLayout>

xml颜色

/*** 根据手机的分辨率从 dip 的单位 转成为 px(像素)*/
public static int dipToPx(Context context, float dpValue) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (dpValue * scale + 0.5f);
}

3.设置滑动监听：

floatView.setOnTouchListener(new FloatingOnTouchListener());

private class FloatingOnTouchListener implements View.OnTouchListener {private intmTouchStartX,mTouchStartY,mTouchCurrentX,mTouchCurrentY,mMoveX,mMoveY;@SuppressLint("ClickableViewAccessibility")@Overridepublic boolean onTouch(View view, MotionEvent event) {if (event.getAction() == MotionEvent.ACTION_DOWN) {mTouchStartX = (int) event.getRawX();mTouchStartY = (int) event.getRawY();mMoveX = 0;mMoveY = 0;} else if (event.getAction() == MotionEvent.ACTION_MOVE) {mTouchCurrentX = (int) event.getRawX();mTouchCurrentY = (int) event.getRawY();mMoveX = mTouchCurrentX - mTouchStartX;mMoveY = mTouchCurrentY - mTouchStartY;mTouchStartX = mTouchCurrentX;mTouchStartY = mTouchCurrentY;layoutParams.x += mMoveX;layoutParams.y += mMoveY;windowManager.updateViewLayout(floatView, layoutParams);} else if (event.getAction() == MotionEvent.ACTION_UP) {windowManager.updateViewLayout(floatView, layoutParams);}return false;}
}

/*** 根据手机的分辨率从 dip 的单位 转成为 px(像素)*/
public static int dipTopx(Context context, float dpValue) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (dpValue * scale + 0.5f);
}

如对此有疑问，请联系qq1164688204。

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