显示软键盘后禁用粘性沉浸模式 [英] Sticky immersive mode disabled after soft keyboard shown

问题描述

我的应用程序大多数时候都需要全屏显示.我知道，如果显示了警报或显示了其他窗口，则活动窗口上方的全屏会被暂时删除.不幸的是，当显示用于EditText之类的软键盘时，当用户使用完键盘后，将无法恢复全屏沉浸式模式.

I have an app that needs to be full screen most of the time. I know that if an alert is shown or other window is displayed, over the top of the activity window, full screen is temporarily removed. Unfortunately, when a soft keyboard is shown for an EditText or something, when the user has finished with the keyboard, full screen immersive mode is not restored.

有什么想法可以实现吗?

Any idea how this can be achieved?

推荐答案

来自

Taken from this sample app by Google, you need to append this to the end of your activity, before the last end bracket:

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    // When the window loses focus (e.g. the action overflow is shown),
    // cancel any pending hide action. When the window gains focus,
    // hide the system UI.
    if (hasFocus) {
        delayedHide(300);
    } else {
        mHideHandler.removeMessages(0);
    }
}

private void hideSystemUI() {
    getWindow().getDecorView().setSystemUiVisibility(
        View.SYSTEM_UI_FLAG_LAYOUT_STABLE | 
        View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | 
        View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | 
        View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | 
        View.SYSTEM_UI_FLAG_FULLSCREEN | 
        View.SYSTEM_UI_FLAG_LOW_PROFILE | 
        View.SYSTEM_UI_FLAG_IMMERSIVE
    );
}

private void showSystemUI() {
    getWindow().getDecorView().setSystemUiVisibility(
        View.SYSTEM_UI_FLAG_LAYOUT_STABLE | 
        View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | 
        View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
    );
}

private final Handler mHideHandler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
        hideSystemUI();
    }
};

private void delayedHide(int delayMillis) {
    mHideHandler.removeMessages(0);
    mHideHandler.sendEmptyMessageDelayed(0, delayMillis);
}

你应该很好. :)

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