bezüglich IMEI erhalten kein Android verwenden, folgende Fehler mit

Question

ich das Problem bin, während die IMEI immer nein, ich habe tride fast den gesamten Code von Google, aber immer noch auf dem gleichen Fehler stecken,

Menifest

<uses-permission android:name="android.permission.READ_PHONE_STATE"/> 


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

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
    </application> 

</manifest> 

MainActivity.java

import android.content.Context; 
import android.os.Bundle; 
import android.provider.Settings; 
import android.support.design.widget.FloatingActionButton; 
import android.support.design.widget.Snackbar; 
import android.support.v7.app.AppCompatActivity; 
import android.support.v7.widget.Toolbar; 
import android.telephony.TelephonyManager; 
import android.view.View; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.widget.TextView; 

public class MainActivity extends AppCompatActivity { 
    TelephonyManager tel; 
    TextView imei; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 
     setSupportActionBar(toolbar); 


     tel = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); 

     imei = (TextView) findViewById(R.id.textView2); 
     imei.setText(tel.getDeviceId().toString()); 

    } 

} 

content_main.xml

<TextView 
     android:id="@+id/textView1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentTop="true" 
     android:layout_centerHorizontal="true" 
     android:layout_marginTop="50dp" 
     android:textColor="#4169E1" 
     android:textSize="18sp" 
     android:text="IMEI Number" /> 

    <TextView 
     android:id="@+id/textView2" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_centerInParent="true" 
     android:textSize="15sp" 
     android:text="IMEI" /> 

logcat:

FATAL EXCEPTION: main 
                     Process: com.example.a3spl.emieno, PID: 5402 
                     java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.a3spl.emieno/com.example.a3spl.emieno.MainActivity}: java.lang.SecurityException: getDeviceId: Neither user 10096 nor current process has android.permission.READ_PHONE_STATE. 
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) 
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
                      at android.app.ActivityThread.-wrap11(ActivityThread.java) 
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
                      at android.os.Handler.dispatchMessage(Handler.java:102) 
                      at android.os.Looper.loop(Looper.java:148) 
                      at android.app.ActivityThread.main(ActivityThread.java:5417) 
                      at java.lang.reflect.Method.invoke(Native Method) 
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                     Caused by: java.lang.SecurityException: getDeviceId: Neither user 10096 nor current process has android.permission.READ_PHONE_STATE. 
                      at android.os.Parcel.readException(Parcel.java:1599) 
                      at android.os.Parcel.readException(Parcel.java:1552) 
                      at com.android.internal.telephony.ITelephony$Stub$Proxy.getDeviceId(ITelephony.java:4175) 
                      at android.telephony.TelephonyManager.getDeviceId(TelephonyManager.java:706) 
                      at com.example.a3spl.emieno.MainActivity.onCreate(MainActivity.java:31) 
                      at android.app.Activity.performCreate(Activity.java:6237) 
                      at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  
                      at android.app.ActivityThread.-wrap11(ActivityThread.java)  
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  
                      at android.os.Handler.dispatchMessage(Handler.java:102)  
                      at android.os.Looper.loop(Looper.java:148)  
                      at android.app.ActivityThread.main(ActivityThread.java:5417)  
                      at java.lang.reflect.Method.invoke(Native Method)  
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)  

Bitte helfen Sie mir, mein Problem zu lösen

Answer 1

Dies liegt daran, dass Sie Berechtigungen für Benutzer in Android-Version 6.0 für android.permission.READ_PHONE_STATE

int permission = ContextCompat.checkSelfPermission(thisActivity, 
    Manifest.permission.READ_PHONE_STATE); 
if(permission != PackageManager.PERMISSION_GRANTED) { 
    // ask permission here 
    ActivityCompat.requestPermissions(this, 
      new String[]{Manifest.permission.READ_PHONE_STATE}, 101); 
} else { 
    // do your work here 
} 

den obigen Code zu fragen haben sollten in onCreate Methode der Aktivität sein.

und prüfen, ob Benutzer die Erlaubnis in onRequestPermissionsResult Methode der Tätigkeit erteilt hat

@Override 
public void onRequestPermissionsResult(int requestCode, 
             String permissions[], int[] grantResults) { 
    if (requestCode == 101) { 
     if (grantResults.length > 0 
       && grantResults[0] == PackageManager.PERMISSION_GRANTED) { 

      // permission was granted, yay! Do the 
      // IMEI Getting task here 

     } else { 
      // permission denied, 
      // don't do the functionality that depends on this permission. 
     } 
    } 
} 

Hope this werde dir helfen.

Referenz von this