我的呼叫检测器应用程序在除8 Oreo之外的所有android版本上均可正常运行。我得到一个死锁范例：检测器未调用，当我关闭应用程序时，系统将其杀死，而不是将其留在后台。
我已经阅读了从电缆到尾巴https://developer.android.com/about/versions/oreo/background的文档，我在google上看起来很丰富，并且这里的内容非常丰富，但是由于需要“危险”权限，因此没有适用于我的情况的解决方案
我的情况似乎很简单：我有一个检测器，一个服务和一个带按钮的主体。当用户拨打某个号码时，我希望它打开我的主电话。
解决此问题的正确方法是什么？
manifest.xml：
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.READ_CALL_LOG" />
<uses-permission android:name="android.permission.ANSWER_PHONE_CALLS" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" />
<uses-permission android:name="android.permission.ACTION_MANAGE_OVERLAY_PERMISSION" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<service
android:name=".CallDetectionService"
android:enabled="true"
android:exported="false"/>
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.NEW_OUTGOING_CALL" />
</intent-filter>
</activity>
</application>
CallDetectionService.java
public class CallDetectionService extends Service {
private CallDetector callDetector;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
callDetector = new CallDetector(this);
int r = super.onStartCommand(intent, flags, startId);
callDetector.start();
return r;
}
@Override
public void onDestroy() {
super.onDestroy();
callDetector.stop();
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
}
CallDetector.java
public class CallDetector {
public static final String MY_PREF = "MY_PREF";
public static final String NUMBER_KEY = "NUMBER_KEY";
private SharedPreferences sharedPreferences;
public class OutgoingDetector extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);
String number = intent.getStringExtra(Intent.EXTRA_PHONE_NUMBER);
String compare_num = "12345678";
if (number.equals(compare_num)) {
Intent i = new Intent(context, MainActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
setResultData(null);
context.startActivity(i);
}
}
}
private Context ctx;
private OutgoingDetector outgoingDetector;
public CallDetector(Context ctx) {
this.ctx = ctx;
outgoingDetector = new OutgoingDetector();
}
public void start() {
IntentFilter intentFilter = new IntentFilter(Intent.ACTION_NEW_OUTGOING_CALL);
ctx.registerReceiver(outgoingDetector, intentFilter);
}
public void stop(){
ctx.unregisterReceiver(outgoingDetector);
}
}
MainActivity.java
public class MainActivity extends AppCompatActivity {
private Button button;
private TextView textView;
private boolean detecting = false;
private static final int MY_PERMISSIONS_REQUEST_CALL_PHONE = 0;
public boolean isPermissionGranted() {
if (Build.VERSION.SDK_INT >= 23) {
if (checkSelfPermission(android.Manifest.permission.CALL_PHONE)
== PackageManager.PERMISSION_GRANTED) {
Log.v("TAG", "Permission is granted");
return true;
} else {
Log.v("TAG", "Permission is revoked");
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CALL_PHONE}, 1);
return false;
}
} else {
Log.v("TAG", "Permission is granted");
return true;
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = (TextView) findViewById(R.id.textView);
button = (Button) findViewById(R.id.button);
/* button.setOnClickListener(this); */
// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(MainActivity.this,
Manifest.permission.CALL_PHONE)
!= PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,
Manifest.permission.CALL_PHONE)) {
} else {
ActivityCompat.requestPermissions(MainActivity.this,
new String[]{Manifest.permission.CALL_PHONE},
MY_PERMISSIONS_REQUEST_CALL_PHONE);
}
}
String action = "START";
final Intent intent = new Intent(this, CallDetectionService.class);
intent.setAction(action);
startService(intent);
}
@Override
public void onResume() {
super.onResume();
SharedPreferences sharedPreferences = getSharedPreferences(CallDetector.MY_PREF, MODE_PRIVATE);
String number = sharedPreferences.getString(CallDetector.NUMBER_KEY, "URA VISUAL");
textView.setText(number);
}
}
我做错了什么？我一直在寻找解决方案已有4天了，但仍然找不到任何东西。