我正在尝试锁定所选应用，然后再打开它们一段特定的时间。
经过大量研究和失败的实施。我终于让我的服务类在某些方面与我的LockScreen活动有关。最大的问题是它在过程中锁定了我的非常自己的应用程序。
这是我的服务类（为方便起见，我发表了评论，并帮助理解。相关部分是代码的末尾。）：
package com.alimuzaffar.android.childlock;
import android.app.ActivityManager;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.IBinder;
import android.util.Log;
import java.io.File;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.Timer;
import java.util.TimerTask;
public class HeartBeat extends Service {
private static final String TAG = HeartBeat.class.getSimpleName();
public Timer TIMER;
String CURRENT_PACKAGE_NAME;
private static Set<AccessGranted> mAccessGrantedList = new HashSet<AccessGranted>();
private Set<String> mLockedApps = new HashSet<String>();
private long lastModified = 0;
private BroadcastReceiver mScreenStateReceiver;
private BroadcastReceiver mAccessGrantedReceiver;
private File mLockedAppsFile;
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
startService(new Intent(this, HeartBeat.class));
// Log.i("LocalService", "Received start id " + startId + ": " +
// intent);
// We want this service to continue running until it is explicitly
// stopped, so return sticky.
if (TIMER == null) {
TIMER = new Timer(true);
TIMER.scheduleAtFixedRate(new LockAppsTimerTask(), 1000, 250);
mScreenStateReceiver = new BroadcastReceiver() {
private boolean screenOff;
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
screenOff = true;
} else if (intent.getAction().equals(Intent.ACTION_SCREEN_ON)) {
screenOff = false;
}
if (screenOff) {
Log.i(TAG, "Cancel Timer");
TIMER.cancel();
} else {
Log.i(TAG, "Restart Timer");
TIMER = new Timer(true);
TIMER.scheduleAtFixedRate(new LockAppsTimerTask(), 1000, 250);
}
}
};
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_SCREEN_OFF);
registerReceiver(mScreenStateReceiver, filter);
mAccessGrantedReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
String packageName = intent.getStringExtra("packageName");
if (action.equals(Constants.ACTION_GRANT_ACCESS) && packageName != null) {
AccessGranted ag = new AccessGranted(packageName);
mAccessGrantedList.remove(ag);
mAccessGrantedList.add(ag);
}
}
};
IntentFilter filter2 = new IntentFilter(Constants.ACTION_GRANT_ACCESS);
registerReceiver(mAccessGrantedReceiver, filter2);
}
// this.stopSelf();
//startforeground goes here
return START_STICKY;
}
@Override
public void onDestroy() {
super.onDestroy();
startService(new Intent(this, HeartBeat.class));
}
private class LockAppsTimerTask extends TimerTask {
@Override
public void run() {
ActivityManager activityManager = (ActivityManager) getApplicationContext().getSystemService(Context.ACTIVITY_SERVICE);
try {
//List<RecentTaskInfo> recentTasks = activityManager.getRecentTasks(1, ActivityManager.RECENT_IGNORE_UNAVAILABLE);
String packageName = "com.android.camera";
ActivityManager mActivityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningTaskInfo> RunningTask = mActivityManager
.getRunningTasks(1);
ActivityManager.RunningTaskInfo ar = RunningTask.get(0);
String activityOnTop = ar.topActivity.getPackageName();
// Log.e("activity on Top", "" + activityOnTop);
// Log.e(" My package name", "" + getApplicationContext().getPackageName());
// Provide the packagename(s) of apps here, you want to show password activity
// THE PROBLEM IS OVER HERE. BUT I AM NOT SURE WHAT IS WRONG. I USED INSTAGRAM AS A TEST. BUT I AM NOT SURE WHY MY OWN PERSONAL APP IS GETTING BLOCK
if (activityOnTop.contains("com.instagram.android")
) {
Intent i = new Intent(getApplicationContext(), LockScreenActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION);
i.putExtra("packageName", packageName);
startActivity(i);
}
} catch (Exception e) {
Log.e("Foreground App", e.getMessage(), e);
}
}
}
}
如果你需要它，我的锁屏活动是：
package com.alimuzaffar.android.childlock;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
import com.spicycurryman.getdisciplined10.app.R;
public class LockScreenActivity extends Activity {
private static final String TAG = LockScreenActivity.class.getSimpleName();
EditText pin;
TextView pinMsg;
String firstPin;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_setup);
}
@Override
public void onBackPressed() {
// Display confirmation here, finish() activity.
Intent startMain = new Intent(Intent.ACTION_MAIN);
startMain.addCategory(Intent.CATEGORY_HOME);
startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(startMain);
Intent i = new Intent(LockScreenActivity.this, HeartBeat.class);
startService(i);
finish();
super.onBackPressed();
}
}
在我的服务类中，我不确定if语句有什么问题。它应该只适用于Instagram，因为这是检查的内容，但我的应用程序也被阻止...
我该如何解决这个问题？我需要对代码进行哪些修改？