从Android片段调用时，权限被拒绝。使用权限设置为

Question

我在这里遇到了一些问题，这让我疯狂。 我想打电话给在Android上ACTION_CALL意图的人，我用下面的代码做一个片段：

Intent callIntent = new Intent(Intent.ACTION_CALL); 
     Ansat a = container.adapter.getItem(position); 
     callIntent.setData(Uri.parse("tel:" + a.mobil.replace(" ", "").trim())); 
     container.startActivity(callIntent); 

容器是传递给片段中的主要活动范围内，因为碎片唐没有自己的活动。

我已在Android清单的权限：

<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> 
<uses-permission android:name="android.permission.SEND_SMS" /> 
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 
<uses-permission android:name="android.permission.WAKE_LOCK" /> 
<uses-permission android:name="android.permission.CALL_PHONE" /> 

<permission 
    android:name="mithfogvuc.android.svhfvuc.dk.app.permission.C2D_MESSAGE" 
    android:protectionLevel="signature" /> 

<uses-permission android:name="mithfogvuc.android.svhfvuc.dk.app.permission.C2D_MESSAGE" /> 

<uses-feature 
    android:name="android.hardware.camera" 
    android:required="true" /> 

<application 
    android:allowBackup="true" 
    android:icon="@mipmap/ic_launcher" 
    android:label="@string/app_name" 
    android:supportsRtl="true" 
    android:theme="@style/AppTheme.NoActionBar" 
    tools:replace="android:icon"> 
    <activity 
     android:name=".SplashActivity" 
     android:screenOrientation="portrait"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
    <activity 
     android:name=".MainActivity" 
     android:screenOrientation="portrait" /> 
    <activity 
     android:name=".NewsActivity" 
     android:screenOrientation="portrait" /> 

    <receiver 
     android:name="com.google.android.gms.gcm.GcmReceiver" 
     android:exported="true" 
     android:permission="com.google.android.c2dm.permission.SEND"> 
     <intent-filter> 
      <action android:name="com.google.android.c2dm.intent.RECEIVE" /> 

      <category android:name="mithfogvuc.android.svhfvuc.dk.app" /> 
     </intent-filter> 
    </receiver> 

    <service 
     android:name=".GCMPushReceiverService" 
     android:exported="false"> 
     <intent-filter> 
      <action android:name="com.google.android.c2dm.intent.RECEIVE" /> 
     </intent-filter> 
    </service> 
    <service 
     android:name=".GCMRegistrationIntentService" 
     android:exported="false"> 
     <intent-filter> 
      <action android:name="com.google.android.gms.idd.InstanceID" /> 
     </intent-filter> 
    </service> 

    <activity 
     android:name=".FravaersregistreringActivity" 
     android:screenOrientation="portrait" /> 
    <activity 
     android:name=".FremmoederegistreringActivity" 
     android:screenOrientation="portrait"/> 
</application> 

为什么会收到以下错误：

FATAL EXCEPTION: main 
     Process: mithfogvuc.android.svhfvuc.dk, PID: 23045 
     java.lang.SecurityException: Permission Denial: starting Intent { 
     act=android.intent.action.CALL dat=tel:xxxxxxxx cmp=com.android.server.telecom/.components.UserCallActivity } 
     from ProcessRecord{6c1ee2e 23045:mithfogvuc.android.svhfvuc.dk/u0a251} (pid=23045, uid=10251) with revoked permission android.permission.CALL_PHONE 

Answer 1

在Android 6.0（API拉特23日）起的OS允许用户从应用程序中删除权限。你需要看看Runtime Permissions

它看起来像你的应用程序需要轮询requestPermissions()方法之一被授予访问call_phone API！

Answer 2

你可以这样做

   if (ContextCompat.checkSelfPermission(getActivity(), 
          android.Manifest.permission.CALL_PHONE) 
          != PackageManager.PERMISSION_GRANTED) { 

         // Should we show an explanation? 
         if 

      (ActivityCompat.shouldShowRequestPermissionRationale(getActivity(), 
           android.Manifest.permission.CALL_PHONE)) { 

          // Show an expanation to the user *asynchronously* -- don't block 
          // this thread waiting for the user's response! After the user 
          // sees the explanation, try again to request the permission. 

          Toast.makeText(getActivity(),"Its Necessary To Call",Toast.LENGTH_LONG).show(); 

          ActivityCompat.requestPermissions(getActivity(), 
            new String[]  {Manifest.permission.CALL_PHONE}, 
            MY_PERMISSIONS_REQUEST_CALL_PHONE); 

         } else { 

          // No explanation needed, we can request the  permission. 

          ActivityCompat.requestPermissions(getActivity(), 
            new String[] {Manifest.permission.CALL_PHONE}, 
            MY_PERMISSIONS_REQUEST_CALL_PHONE); 

          // MY_PERMISSIONS_REQUEST_READ_CONTACTS is an 
          // app-defined int constant. The callback method gets the 
          // result of the request. 
         } 
        }else{ 
         Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + number)); 
         startActivity(intent); 

        }