Android中監控home鍵
阿新 • • 發佈:2017-09-06
get 開發 close watcher android inter filter 需要 gist
一、需求
在應用開發過程中,啟動服務開啟線程鎖等待服務返回解鎖,為了避免點擊home鍵使線程鎖卡死的bug,需要監控home鍵,解鎖線程。
二、實現
在應用時,需要register和unregister。
public class HomeWatcherReceiver extends BroadcastReceiver {
private static final String SYSTEM_DIALOG_REASON_KEY = "reason";
private static final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
private OnKeyListener listener;
@Override
public void onReceive(Context context, Intent intent) {
String intentAction = intent.getAction();
if (TextUtils.equals(intentAction, Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {
String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);
if (TextUtils.equals(SYSTEM_DIALOG_REASON_HOME_KEY, reason)) {
listener.onHomeKey();
}
}
}
public void registerHomeKeyReceiver(Context context) {
IntentFilter homeFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
context.registerReceiver(this, homeFilter);
}
public void unregisterHomeKeyReceiver(Context context) {
context.unregisterReceiver(this);
}
public void setListener(OnKeyListener listener) {
this.listener = listener;
}
@FunctionalInterface
public interface OnKeyListener {
void onHomeKey();
}
}
Android中監控home鍵