通过禁用状态栏的拉动和单击来 kiosk 应用程序的方法在 android 8 上不起作用。Android中如何禁用状态栏点击和下拉? https://stackoverflow.com/questions/29969086/how-to-disable-status-bar-click-and-pull-down-in-android
- 您可以在状态栏上放置一个窗口以禁用任何触摸或下拉。
正如这个答案所描述的,这种方法确实适用于 android 7 及以下版本,但此方法不适用于 android 8(oreo)。
我已经在 android 7 及以下版本上进行了测试,它可以工作,但在 android 8 上拉动时状态栏仍然会下拉。
如果您对此有解决方案,请帮忙。
谢谢你们。
对于 8 及以上版本,您无法真正完全覆盖其他应用程序的视图,因此您要做的是,当您向下拉抽屉时,快速将抽屉返回,以便用户无法单击其上的任何内容。这是执行此操作的代码。确保您在一项活动中执行此操作。
@Override
public void onWindowFocusChanged(boolean hasFocus) {
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
if (!hasFocus) {
Intent closeDialog = new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
sendBroadcast(closeDialog);
// Method that handles loss of window focus
new BlockStatusBar(this,false).collapseNow();
}
}
}
然后,执行隐藏状态栏工作的辅助类如下所示。
public class BlockStatusBar {
Context context;
// To keep track of activity's window focus
boolean currentFocus;
// To keep track of activity's foreground/background status
boolean isPaused;
public static Handler collapseNotificationHandler;
Method collapseStatusBar = null;
public BlockStatusBar(Context context,boolean isPaused) {
this.context=context;
this.isPaused=isPaused;
collapseNow();
}
public void collapseNow() {
// Initialize 'collapseNotificationHandler'
if (collapseNotificationHandler == null) {
collapseNotificationHandler = new Handler();
}
// If window focus has been lost && activity is not in a paused state
// Its a valid check because showing of notification panel
// steals the focus from current activity's window, but does not
// 'pause' the activity
if (!currentFocus && !isPaused) {
// Post a Runnable with some delay - currently set to 300 ms
collapseNotificationHandler.postDelayed(new Runnable() {
@Override
public void run() {
// Use reflection to trigger a method from 'StatusBarManager'
Object statusBarService = context.getSystemService("statusbar");
Class<?> statusBarManager = null;
try {
statusBarManager = Class.forName("android.app.StatusBarManager");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
try {
// Prior to API 17, the method to call is 'collapse()'
// API 17 onwards, the method to call is `collapsePanels()`
if (Build.VERSION.SDK_INT > 16) {
collapseStatusBar = statusBarManager .getMethod("collapsePanels");
} else {
collapseStatusBar = statusBarManager .getMethod("collapse");
}
} catch (NoSuchMethodException e) {
e.printStackTrace();
}
collapseStatusBar.setAccessible(true);
try {
collapseStatusBar.invoke(statusBarService);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
// Check if the window focus has been returned
// If it hasn't been returned, post this Runnable again
// Currently, the delay is 100 ms. You can change this
// value to suit your needs.
if (!currentFocus && !isPaused) {
collapseNotificationHandler.postDelayed(this, 100L);
}
if (!currentFocus && isPaused) {
collapseNotificationHandler.removeCallbacksAndMessages(null);
}
}
}, 1L);
}
}
}
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系:hwhale#tublm.com(使用前将#替换为@)