应用程序窗口和可点击的背景

Question

当用户启动应用程序时，我只想显示一个按钮。用户可以继续使用手机。 示例:(问题是图标不可点击）

        android:theme="@android:style/Theme.Translucent.NoTitleBar.Fullscreen"

Answer 1

http://developer.android.com/reference/android/Manifest.permission.html#SYSTEM_ALERT_WINDOW

＆＃34; android.permission.SYSTEM_ALERT_WINDOW＆＃34;在主宴中使用此权限

    windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);

        Button btn = new ImageView(this);

        WindowManager.LayoutParams params = new WindowManager.LayoutParams(
            WindowManager.LayoutParams.WRAP_CONTENT,
            WindowManager.LayoutParams.WRAP_CONTENT,
            WindowManager.LayoutParams.TYPE_PHONE,
            WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
            PixelFormat.TRANSLUCENT);
windowManager.addView(btn, params);