Android(安卓)隐藏底部虚拟键

更新新发现：android 4.4.4 直接（底部导航栏隐藏，切屏蔽了上划出现的问题）

getWindow().getDecorView().setSystemUiVisibility(4108);

但是在弹出软键盘或者拉下状态栏是还会出现

所以加了一个方法禁止状态栏被点击（特殊需求才用到）

 CustomViewGroup view;    WindowManager manager;    public void prohibitDropDown() {        manager = ((WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE));        WindowManager.LayoutParams localLayoutParams = new WindowManager.LayoutParams();        localLayoutParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;        localLayoutParams.gravity = Gravity.TOP;        localLayoutParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|                // this is to enable the notification to recieve touch events                WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL |                // Draws over status bar                WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;        localLayoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;        localLayoutParams.height = (int) (50 * getResources()                .getDisplayMetrics().scaledDensity);        localLayoutParams.format = PixelFormat.TRANSPARENT;        view = new CustomViewGroup(this);        manager.addView(view, localLayoutParams);    }    /**     * 允许下拉状态栏点击选项     */    public void allowDropDown(){        manager.removeView(view);    }    public class CustomViewGroup extends ViewGroup {        public CustomViewGroup(Context context) {            super(context);        }        @Override        protected void onLayout(boolean b, int i, int i1, int i2, int i3) {        }        @Override        public boolean onInterceptTouchEvent(MotionEvent ev) {            return true;        }    }    //系统ui变化监听（一般都是状态栏和导航栏）    @Override    public void onWindowFocusChanged(boolean hasFocus)    {        super.onWindowFocusChanged(hasFocus);//        getWindow().getDecorView().setSystemUiVisibility(options);    }

方法一滑动屏幕可重新显示出来

protected void hideBottomUIMenu() {    //隐藏虚拟按键，并且全屏    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);    }}

方法二滑动也不能重新显示

protected void hideBottomUIMenu() {    //隐藏虚拟按键，并且全屏    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) {               Window _window = getWindow();        WindowManager.LayoutParams params = _window.getAttributes();        params.systemUiVisibility = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION|View.SYSTEM_UI_FLAG_IMMERSIVE;        _window.setAttributes(params);    }}

方法三亲测好用（监听系统UI变化实现）

protected void hideBottomUIMenu() {//隐藏底部导航栏final  View decorView = getWindow().getDecorView();final int  uiOption = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION        |View.SYSTEM_UI_FLAG_LAYOUT_STABLE        |View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION        |View.SYSTEM_UI_FLAG_IMMERSIVE        |View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;decorView.setSystemUiVisibility(uiOption);// This code will always hide the navigation bardecorView.setOnSystemUiVisibilityChangeListener(new View.OnSystemUiVisibilityChangeListener(){    @Override    public void  onSystemUiVisibilityChange(int visibility)    {        if((visibility & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0)        {            decorView.setSystemUiVisibility(uiOption);        }    }});

}

//系统ui变化监听（一般都是状态栏和导航栏）@Overridepublic void onWindowFocusChanged(boolean hasFocus){    super.onWindowFocusChanged(hasFocus);    getWindow().getDecorView().setSystemUiVisibility(            View.SYSTEM_UI_FLAG_HIDE_NAVIGATION                    |View.SYSTEM_UI_FLAG_LAYOUT_STABLE                    |View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION                    |View.SYSTEM_UI_FLAG_IMMERSIVE                    |View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);}

（如有发现问题，可以留言，私聊探讨。）

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