Question

我是Java和Android的新手，所以我从网上粘贴了代码。目标是为一个网页创建一个简单的Web浏览器。在该网页中，可以编辑文本等。

主要目标是使浏览器保持全屏，以便远离android导航按钮。

我尝试使用此代码，但直到知道才成功。 Detecting Soft Keyboard Hidden State

public class MainActivity extends AppCompatActivity {
    private static final String TAG = "MyActivity";
    static int mAppHeight;
    static int currentOrientation = -1;

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

        requestWindowFeature(Window.FEATURE_NO_TITLE); //will hide the title
        getSupportActionBar().hide(); // hide the title bar
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN); //enable full screen
        getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION|
                View.SYSTEM_UI_FLAG_IMMERSIVE);
        setContentView(R.layout.activity_main);
        //make a webview object
        WebView webview=new WebView(this);

        webview.setWebViewClient(new WebViewClient() {
            @Override
            public void onPageFinished(WebView view, String url) {
                super.onPageFinished(view, url);

                getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION|
                        View.SYSTEM_UI_FLAG_IMMERSIVE);
            }
        });

        // enable javascript
        WebSettings webSettings = webview.getSettings();
        webSettings.setJavaScriptEnabled(true);
        //show it through setcontentview()method
        setContentView(webview);

        webview.loadUrl("https://www.mypage.com");
    }


    @Override
    public void onWindowFocusChanged(boolean hasFocus) {
        super.onWindowFocusChanged(hasFocus);
        if (hasFocus) {
            hideSystemUI();
        }
    }

    private void hideSystemUI() {
        View decorView = getWindow().getDecorView();
        decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
                View.SYSTEM_UI_FLAG_IMMERSIVE);
    }
}

有人可以帮助从链接中放置代码吗？

非常感谢问候

编辑：

我也尝试过此操作，但是在显示或隐藏软键盘时我看不到事件运行。：https://github.com/yshrsmz/KeyboardVisibilityEvent

Answer 1

尝试：

 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);

Answer 2

在清单中使用-

<activity
    android:name=".Activities. MainActivity"
    android:screenOrientation="portrait"
    android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen">
</activity>

在Activity onCreate中仅使用此-

@Override
    protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       this.requestWindowFeature(Window.FEATURE_NO_TITLE);
       setContentView(R.layout. activity_main);

并删除

requestWindowFeature(Window.FEATURE_NO_TITLE); //will hide the title
        getSupportActionBar().hide(); // hide the title bar
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN); //enable full screen
        getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION|
                View.SYSTEM_UI_FLAG_IMMERSIVE);
        setContentView(R.layout.activity_main);

检测软键盘隐藏并隐藏导航按钮

2 个答案: