AppCompatActivity / Activity 全屏

Activity 時代的 全屏：

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);

        setContentView(R.layout.activity_main);
}

 

AppCompatActivity 時代全屏，前面代碼隱藏虛擬按鈕，後面theme可以隱藏上面的title

//隱藏虛擬按鍵：
    protected void hideBottomUIMenu() {
        //隱藏虛擬按鍵，並且全屏
        if (Build.VERSION.SDK_INT > 11 && Build.VERSION.SDK_INT < 19) { // lower api
            View v = this.getWindow().getDecorView();
            v.setSystemUiVisibility(View.GONE);
        } else if (Build.VERSION.SDK_INT >= 19) {
            //for new api versions.
            View decorView = getWindow().getDecorView();
            int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                    | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_FULLSCREEN;
            decorView.setSystemUiVisibility(uiOptions);
        }
    }

或者用：

public void hideNavigationBar() {
        int uiFlags = 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

        if (android.os.Build.VERSION.SDK_INT >= 19) {
            uiFlags |= View.SYSTEM_UI_FLAG_IMMERSIVE;//0x00001000; // SYSTEM_UI_FLAG_IMMERSIVE_STICKY: hide
        } else {
            uiFlags |= View.SYSTEM_UI_FLAG_LOW_PROFILE;
        }

        try {
            getWindow().getDecorView().setSystemUiVisibility(uiFlags);
        } catch (Exception e) {
            // TODO: handle exception
        }

    }

加 theme ：

<style name="NoTitleFullscreen" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="android:windowNoTitle">true</item>
        <item name="windowActionBar">false</item>
        <item name="android:windowFullscreen">true</item>
        <item name="android:windowContentOverlay">@null</item>
</style>

 

 參考：https://www.cnblogs.com/renjiemei1225/p/6808790.html

在一份代碼裏看到的，留下來有時間測試一下看看什麼效果：

private void setWindowFlag() {
        Window window = getWindow();
        window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
        window.addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
        window.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
        WindowManager.LayoutParams params = window.getAttributes();
        params.systemUiVisibility = View.SYSTEM_UI_FLAG_LOW_PROFILE;
        window.setAttributes(params);
    }