Android 6 Error In Reading Device Id?

While Reading Device ID etc. I am getting an error in Android 6. How ever its working fine in all other versions 4.0,5.1 etc.. This is my code: public class MyDevIDS extends AppCom

Solution 1:

publicclassMyDevIDSextendsAppCompatActivity {

        privatestaticfinalintREQUEST_READ_PERMISSION=123;
        @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_NOSENSOR);

            if (CheckPermission(this, Manifest.permission.READ_PHONE_STATE)) {
                YourStuffHandling();
            } else {
                RequestPermission(MyDevIDS.this, Manifest.permission.READ_PHONE_STATE, REQUEST_READ_PERMISSION );
            }
        }


        privatevoidYourStuffHandling() {
            PackageInfopInfo=null;
            try {
                pInfo = getPackageManager().getPackageInfo(getPackageName(), 0);
            } catch (PackageManager.NameNotFoundException e) {
                e.printStackTrace();
            }
            Stringversion= pInfo.versionName;
            TextViewversionText= (TextView) findViewById(R.id.tv7);
            versionText.setText("Version  : " + version);

            TelephonyManagertelephonyManager= (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
            Stringimei_id= telephonyManager.getDeviceId();
            TextViewimei_idT= (TextView) findViewById(R.id.tv9);
            Stringimei_idV="<b><font color=#008000>" + imei_id + "</b></font>";
            imei_idT.setText(Html.fromHtml("IMEI ID  : " + imei_idV));

            Stringdevice_id= Settings.Secure.getString(getContentResolver(), Settings.Secure.ANDROID_ID);
            TextViewdevice_idT= (TextView) findViewById(R.id.tv10);
            Stringdevice_idV="<b><font color=#008000>" + device_id + "</b></font>";
            device_idT.setText(Html.fromHtml("Device ID  : " + device_idV));
        }

        @OverridepublicvoidonRequestPermissionsResult(int permsRequestCode, String[] permissions, int[] grantResults) {

            switch (permsRequestCode) {

                case REQUEST_READ_PERMISSION: {
                    if (grantResults.length > 0
                            && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                        YourStuffHandling();
                    } else {
                        ShowToast(getString(R.string.permission_needed_sms));
                    }
                    return;
                }
            }
        }

        publicvoidRequestPermission(Activity thisActivity, String Permission, int Code) {
            if (ContextCompat.checkSelfPermission(thisActivity,
                    Permission)
                    != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
                        Permission)) {
                } else {
                    ActivityCompat.requestPermissions(thisActivity,
                            newString[]{Permission},
                            Code);
                }
            }
        }

        publicbooleanCheckPermission(Context context, String Permission) {
            if (ContextCompat.checkSelfPermission(context,
                    Permission) == PackageManager.PERMISSION_GRANTED) {
                returntrue;
            } else {
                returnfalse;
            }
        }
    }

Solution 2:

Android sdk has implemented Runtime permission feature from version 6.0 onwards. No matter weather you have given permission in manifest file you need to check that permission before you access.

You can check at runtime using either hasSystemFeature(PackageManager.FEATURE_TELEPHONY) or getPhoneType().

Or you can check by following format I have done for Camera permission

publicvoidgetCameraPermission(){
    if (!checkPermission()) {
        requestPermission();
    }
}

private boolean checkPermission(){
    int result = ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA);

    if (result == PackageManager.PERMISSION_GRANTED){
        returntrue;
    } else {
        returnfalse;
    }
}
privatevoidrequestPermission(){

    if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.CAMERA)){

        ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CAMERA}, PERMISSION_REQUEST_CODE);
    } else {

        ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CAMERA}, PERMISSION_REQUEST_CODE);
    }
}

 @Override
 publicvoidonRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
    switch (requestCode) {
        case PERMISSION_REQUEST_CODE:
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
              Toast.makeText(MainActivity.this,"Permission granted",Toast.LENGTH_SHORT).show();
                //store permission in shared pref

            }

            else {
                Toast.makeText(MainActivity.this,"Permission denied",Toast.LENGTH_SHORT).show();
                //store permission in shared pref
            }
            break;
    }
}