问题描述
我已经创建了广播接收器以检测传入的呼叫。当应用程序处于前台时,它可以正常工作,但是在杀死应用程序后,它停止工作。 因此,我使用工作管理器来实现目标,但它也无法正常工作。我不确定我是否正确实施了工作管理器。
如果应用被杀死,请帮助我使broadcast Receiver保持活动状态,如果我为获取结果有任何错误,也建议我正确的方法。
public class PhonestatebroadcastReceiver extends broadcastReceiver {
@Override
public void onReceive(Context context,Intent intent) {
TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
telephonyManager.listen(new PhonestateListener() {
@Override
public void onCallStateChanged(int state,String phoneNumber) {
super.onCallStateChanged(state,phoneNumber);
try {
if (state == TelephonyManager.CALL_STATE_RINGING) {
Log.e("phoneNumber",phoneNumber);
}
} catch (Exception e) {
e.printstacktrace();
}
}
},PhonestateListener.LISTEN_CALL_STATE);
}
}
PhonestateWorkManager.java
public class PhonestateWorkManager extends Worker {
PhonestatebroadcastReceiver phonestatebroadcastReceiver;
public PhonestateWorkManager(@NonNull Context context,@NonNull WorkerParameters workerParams) {
super(context,workerParams);
}
@NonNull
@Override
public Result doWork() {
if (phonestatebroadcastReceiver == null) {
phonestatebroadcastReceiver = new PhonestatebroadcastReceiver();
}
IntentFilter filter = new IntentFilter(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
getApplicationContext().registerReceiver(phonestatebroadcastReceiver,filter);
return Result.success();
}
}
MainActivity.java
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addAutoStartup();
Constraints constraints = new Constraints
.Builder()
.setrequiredNetworkType(NetworkType.NOT_required)
.build();
WorkRequest phonestateRequest = new OneTimeWorkRequest
.Builder(PhonestateWorkManager.class)
.setConstraints(constraints)
.build();
WorkManager.getInstance(MainActivity.this).enqueue(phonestateRequest);
}
private void addAutoStartup() {
try {
Intent intent = new Intent();
String manufacturer = android.os.Build.MANUFACTURER;
if ("xiaomi".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.miui.securitycenter","com.miui.permcenter.autostart.AutoStartManagementActivity"));
} else if ("oppo".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.coloros.safecenter","com.coloros.safecenter.permission.startup.StartupAppListActivity"));
} else if ("vivo".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.vivo.permissionmanager","com.vivo.permissionmanager.activity.BgStartUpManagerActivity"));
} else if ("Letv".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.letv.android.letvsafe","com.letv.android.letvsafe.AutobootManageActivity"));
} else if ("Honor".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.huawei.systemmanager","com.huawei.systemmanager.optimize.process.ProtectActivity"));
}
List<ResolveInfo> list = getPackageManager().queryIntentActivities(intent,PackageManager.MATCH_DEFAULT_ONLY);
if (list.size() > 0) {
startActivity(intent);
}
} catch (Exception e) {
Log.e("exc",String.valueOf(e));
}
}
}
解决方法
当电话状态更改时,有两种获取回调的方法:PhoneStateListener
和监听BroadcastReceiver
的{{1}}。
我建议完全不使用android.intent.action.PHONE_STATE
,而仅使用PhoneStateListener
方法,该方法可以通过BroadcastReceiver
进行设置,即使未使用应用程序也可以调用它当前处于活动状态。
请参阅本教程:https://medium.com/@saishaddai/how-to-know-when-a-device-is-ringing-in-android-57e516d0ab42
请注意,当用户通过“强制关闭”杀死某个应用时,该应用的所有广播接收器都会立即暂停,并且系统会阻止它们继续接收以后的广播,直到用户手动重新打开该应用。
只要用户没有强制关闭您的应用,您就应该能够接收电话状态更改。