android开发 在所有activity启动时主动隐藏导航栏上划时能唤出导航栏功能代码位置frameworks/base/core/java/android/app/Activity.java#onCreateprotectedvoidonCreate(NullableBundlesavedInstanceState){if(DEBUG_LIFECYCLE)Slog.v(TAG,onCreate this: savedInstanceState);//addbooleanisedlatestSystemProperties.getBoolean(persist.sys.stb.edlatest,false);if(!isedlatest){StringpackageNamegetPackageName();Log.d(activity,packageNamepackageName);//launcher3本身不需要隐藏camera2本身就已经隐藏导航栏该对策会导致原生相机打开报错添加包名过滤if(!com.android.launcher3.equals(packageName)!com.android.camera2.equals(packageName)){getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE|View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION|View.SYSTEM_UI_FLAG_HIDE_NAVIGATION|View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);}}//add......如果对你有帮助就一键三连呗关注点赞收藏我会持续更新更多干货~~