java - Android 调用 onAttachedToWindow() 时可以隐藏状态栏吗？

Question

有一种方法可以在调用 onAttachedToWindow 并且窗口类型为 keyguard 时隐藏状态栏或禁用它？我在我的 Activity 课上尝试过这个:

这是 onCreate

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setWindowAnimations(0);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_lock); 
}

public void onAttachedToWindow() {
    super.onAttachedToWindow();
    getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
}

这在我的 list 中

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

但有时状态栏会消失，有时会出现。

如果我尝试这个:

public void onAttachedToWindow() {
    super.onAttachedToWindow();
    getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
}

它给了我错误:

12-22 11:03:51.209: E/AndroidRuntime(9088): android.util.AndroidRuntimeException: requestFeature() must be called before adding content

Answer 1

好的，在以编程方式隐藏状态栏之前，您必须请求该功能:

requestWindowFeature(Window.FEATURE_NO_TITLE);

然后要请求全屏，您可以使用:

getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);