Question

我使用此代码将活动全屏显示

requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_read);

如何通过按下按钮再次使活动不再全屏？

Answer 1

如果您更改高度和宽度，请在此代码中替换您想要的.8和.85值

    DisplayMetrics dm=new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(dm);
    int width=dm.widthPixels;
    int height=dm.heightPixels;
    getWindow().setLayout((int)(width*.8),(int)(height*.85));

注意：值不超过1

Answer 2

使用此功能进入/隐藏沉浸式全屏模式

 View mDecorView = getWindow().getDecorView();

 private void hideSystemUI() {
    mDecorView.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 // hide nav bar
                    | View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
                    | View.SYSTEM_UI_FLAG_IMMERSIVE);
}

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

更多信息：https://developer.android.com/training/system-ui/immersive.html

如何使活动不全屏

2 个答案: