Android(安卓)隐藏虚拟按键
16lz
2021-01-25
Android 隐藏虚拟按键
领导要求：
- 横屏播放视频时，不展示虚拟按键；
- 恢复到竖屏时，展示虚拟按键；
/** * NavigationBar 显示与隐藏 */public class NavigationBarHelper { private Fragment fragment; private boolean mSystemUiVisibilityUpdated; // android 4.4 api19 及以上，记录竖屏时的SystemUiVisibility private int mSystemUiVisibilityPortrait; public NavigationBarHelper(Fragment fragment) { this.fragment = fragment; } private View getDecorView() { if (fragment != null && fragment.getActivity() != null) { return fragment.getActivity().getWindow().getDecorView(); } return null; } public void beforeOrientationChange(boolean targetLandscape) { if (targetLandscape) { hideBottomMenu(); } else { showBottomMenu(); } } /** * 竖屏 显示虚拟按键 */ private void showBottomMenu() { if (fragment != null && fragment.getActivity() != null) { View decorView = getDecorView(); if (decorView != null) { if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB && Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { decorView.setSystemUiVisibility(View.VISIBLE); } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && mSystemUiVisibilityUpdated) { // 恢复 竖屏时的SystemUiVisibility decorView.setSystemUiVisibility(mSystemUiVisibilityPortrait); mSystemUiVisibilityUpdated = false; } } } } /** * 横屏 隐藏虚拟按键 */ private void hideBottomMenu() { if (fragment != null && fragment.getActivity() != null) { View decorView = getDecorView(); if (decorView != null) { if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB && Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { decorView.setSystemUiVisibility(View.GONE); } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { if (mSystemUiVisibilityUpdated) { return; } // 记录竖屏时的SystemUiVisibility mSystemUiVisibilityPortrait = decorView.getSystemUiVisibility(); // 隐藏虚拟按键 int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_FULLSCREEN; decorView.setSystemUiVisibility(uiOptions); mSystemUiVisibilityUpdated = true; } } } } /** * 退出到后台 返回时 */ public void onVideoResume() { if (fragment != null && fragment.getActivity() != null) { // 当前是横屏 播放视频 if (fragment.getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) { View decorView = getDecorView(); if (decorView != null) { if (Build.VERSION.SDK_INT > Build.VERSION_CODES.HONEYCOMB && Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { decorView.setSystemUiVisibility(View.GONE); } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { // 隐藏虚拟按键 int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_FULLSCREEN; decorView.setSystemUiVisibility(uiOptions); } } } } }}更多相关文章
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