android - 在 Android 中设置 FLAG_LAYOUT_IN_SCREEN 后禁用全屏模式

Question

我必须继承一个自定义主 Activity 类，它是第 3 方库，并且我无法对该类进行任何更改。此类将 FLAG_LAYOUT_IN_SCREEN 添加到窗口，并使应用程序全屏显示。但是，我想阻止这种行为。那么，问题是如何清除/禁用全屏模式并可以显示导航栏/状态栏？

这是自定义的主要 Activity 类

public class CustomActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
       setContentView(new FrameLayout(this));
       // rest...
    }
}

这是我的 Activity 类(class):

public class MyActivity extends CustomActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       // tried these attempts below, but none of them prevented 
       // the fullscreen mode which hides navigation bar and status bar.
       this.getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
       this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
       this.getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    }
}

注意:您还可以在示例应用程序上轻松测试它。您会注意到，添加 FLAG_LAYOUT_IN_SCREEN 后，全屏模式在不同的尝试中也会保持不变。

public class MainActivity extends Activity {
    private FrameLayout mainLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.getWindow().addFlags(FLAG_LAYOUT_IN_SCREEN);
        setContentView(new FrameLayout(this));
        this.getWindow().clearFlags(FLAG_LAYOUT_IN_SCREEN);
        this.getWindow().addFlags(FLAG_KEEP_SCREEN_ON);
    }

Answer 1

请对应用应用以下内容，以免全屏显示(显示状态栏)

getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE);       
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);