我和你一样也遇到了同样的问题。所以经过几天的研究,我找到了下面这个类,用于检测(Home键和Recent Apps键的按下事件)。
public class HardwareKeyWatcher {
static final String TAG = "HardwareKeyWatcher";
private Context mContext;
private IntentFilter mFilter;
private OnHardwareKeysPressedListener mListener;
private InnerReceiver mReceiver;
public interface OnHardwareKeysPressedListener {
public void onHomePressed();
public void onRecentAppsPressed();
}
public HardwareKeyWatcher(Context context) {
mContext = context;
mFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
mFilter.setPriority(1000);
}
public void setOnHardwareKeysPressedListenerListener(OnHardwareKeysPressedListener listener) {
mListener = listener;
mReceiver = new InnerReceiver();
}
public void startWatch() {
if (mReceiver != null) {
mContext.registerReceiver(mReceiver, mFilter);
}
}
public void stopWatch() {
if (mReceiver != null) {
mContext.unregisterReceiver(mReceiver);
}
}
class InnerReceiver extends BroadcastReceiver {
final String SYSTEM_DIALOG_REASON_KEY = "reason";
final String SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";
final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);
if (reason != null) {
Log.e(TAG, "action:" + action + ",reason:" + reason);
if (mListener != null) {
if (reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {
mListener.onHomePressed();
} else if (reason.equals(SYSTEM_DIALOG_REASON_RECENT_APPS)) {
mListener.onRecentAppsPressed();
}
}
}
}
}
}
}
在您的服务的onCreate方法中,如下使用上述类:
@Override
public void onCreate() {
mHardwareKeyWatcher = new HardwareKeyWatcher(this);
mHardwareKeyWatcher.setOnHardwareKeysPressedListenerListener(new HardwareKeyWatcher.OnHardwareKeysPressedListener() {
@Override
public void onHomePressed() {
System.out.println("stop your service here");
}
@Override
public void onRecentAppsPressed() {
System.out.println("stop your service here");
}
});
mHardwareKeyWatcher.startWatch();
}
同时,如果想要检测后退按钮,可以参考以下链接(Service with Overlay - catch back button press)。我尝试了这个解决方案,对我很有效。
所以你可以在 onHomePressed() 和 onRecentAppsPressed() 方法中调用 stopService(),然后在你的服务类中重写 onDestroy() 方法,如下所示。
@Override
public void onDestroy() {
super.onDestroy();
mWindowManager.removeView(mYourOverlayView);
mHardwareKeyWatcher.stopWatch();
}
请尝试这些方法,并告知我们结果... 祝你好运。
startActivity()
和 finish()
放置在重定向活动的 onCreate()
中。 - takahirom