如何在Android 6.0中获取read_phone_state权限

Question

我收到了以下错误信息

java.lang.SecurityException: getDeviceId: Neither user 10250 nor current process has android.permission.READ_PHONE_STATE.

AndroidRuntime: FATAL EXCEPTION: main
Process: com.infyco.kp.new_tab, PID: 23149
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.infyco.kp.new_tab/com.infyco.kp.new_tab.Splashscreen}: java.lang.SecurityException: getDeviceId: Neither user 10257 nor current process has android.permission.READ_PHONE_STATE.

这是我的代码：

  ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE}, 1);

它适用于SEND_SMS权限，但不适用于READ_PHONE_STATE权限

  ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.SEND_SMS}, 1);

- Praviin Zurrunge

---

你的清单文件中是否有一个 <uses-permission> 元素来请求 READ_PHONE_STORAGE 权限？ - CommonsWare

请查看以下链接：https://developer.android.com/guide/topics/security/permissions.html#normal-dangerous - Ajay

@Commons Ware ... 是的，在清单文件中有它 :) 我想要一段代码在运行时获取权限，即使我已经尝试过下面的 isPermissionGranted() 但是不起作用...:( - Praviin Zurrunge

Answer 1

你正在使用相同的请求代码（这里是：1）请求权限。

尝试这样做：

public  boolean isPermissionGranted() {
    if (Build.VERSION.SDK_INT >= 23) {
        if (checkSelfPermission(android.Manifest.permission.READ_PHONE_STATE)
                == 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.READ_PHONE_STATE}, 2);
            return false;
        }
    }
    else { //permission is automatically granted on sdk<23 upon installation
        Log.v("TAG","Permission is granted");
        return true;
    }
}


 @Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {

        case 2: {

            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Toast.makeText(getApplicationContext(), "Permission granted", Toast.LENGTH_SHORT).show();
                //do your specific task after read phone state granted
            } else {
                Toast.makeText(getApplicationContext(), "Permission denied", Toast.LENGTH_SHORT).show();
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
 }

像这样使用它：

if(isPermissionGranted()){
    //do your specific task after read phone state
}

Also, in your manifest, add:

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

- rafsanahmad007

Answer 2

   if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
    {
        if (checkSelfPermission(Manifest.permission.READ_PHONE_STATE)
                != PackageManager.PERMISSION_GRANTED) {
            requestPermissions(new String[]{Manifest.permission.READ_PHONE_STATE},
                    PERMISSIONS_REQUEST_READ_PHONE_STATE);
        }
        else
            {
            mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
                return;
            }
            IMEI_Number_Holder= mTelephonyManager.getDeviceId();
            }
    }
    else
    {
        mTelephonyManager = (TelephonyManager) this.getSystemService(Context.TELEPHONY_SERVICE);
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        IMEI_Number_Holder = mTelephonyManager.getDeviceId();
    }

- Vishnu Balanchandran

---

考虑在你的回答中添加一些解释。 - Ruslan

因为非常不寻常的变量命名规则而被踩。匈牙利标记法、全大写、下划线、括号换行...不要这样做。 - Zun

对于ZUNJAE的评论的背景 - 它违反了语言命名约定。应该避免这种情况，特别是当它还违反其他形式的非标准化约定时。这也与snake_case不兼容。 - Zoe stands with Ukraine