Question

我正在使用下一个代码：

public void PhoneCallEnd(Context context) {

        try {
            // Get the boring old TelephonyManager
            TelephonyManager telephonyManager =
                    (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

            // Get the getITelephony() method
            Class classTelephony = Class.forName(telephonyManager.getClass().getName());
            Method methodGetITelephony = classTelephony.getDeclaredMethod("getITelephony");

            // Ignore that the method is supposed to be private
            methodGetITelephony.setAccessible(true);

            // Invoke getITelephony() to get the ITelephony interface
            Object telephonyInterface = methodGetITelephony.invoke(telephonyManager);

            // Get the endCall method from ITelephony
            Class telephonyInterfaceClass = Class.forName(telephonyInterface.getClass().getName());


            Method methodEndCall = telephonyInterfaceClass.getDeclaredMethod("endCall");

            // Invoke endCall()
            methodEndCall.invoke(telephonyInterface);

        } catch (Exception ex) { // Many things can go wrong with reflection calls

            String error=ex.toString();
            Toast.makeText(context, "error: "+ error , Toast.LENGTH_LONG).show();

            txtHome.setText("error: "+ error);//cambio el contenido del TextView


        }

    }

问题是我得到了下一个错误＆＃34; java.lang.reflect.invocationTargetException＆＃34;

行中的aplication崩溃＆＃34; methodEndCall.invoke（telephonyInterface）;＆＃34;

你能否告诉我拒绝当前通话的正确方法？

Answer 1

您需要在清单中定义权限

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

对于大于或等于23的sdk版本，您需要运行时权限。在您的活动中，您可以获得此类

的运行时权限

public static final int MY_PERMISSIONS_REQUEST_READ_PHONE_STATE = 101;
@Override
protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);

  if (ContextCompat.checkSelfPermission(this,
        Manifest.permission.READ_PHONE_STATE)
        != PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(this,
        Manifest.permission.CALL_PHONE)
        != PackageManager.PERMISSION_GRANTED) {

    if (ActivityCompat.shouldShowRequestPermissionRationale(this,
            Manifest.permission.READ_PHONE_STATE)) {
        // Show an explanation for read phone state
    } else 
     if(ActivityCompat.shouldShowRequestPermissionRationale(this,
            Manifest.permission.CALL_PHONE)){
        // Show an explanation for call phone
    }else {

        // No explanation needed

        ActivityCompat.requestPermissions(this,
                new String[]{Manifest.permission.READ_PHONE_STATE,Manifest.permission.CALL_PHONE},
                MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
        // result of the request.
    }
  }else{
       //permission already available
       //do the required task here
  }
}

@Override
public void onRequestPermissionsResult(int requestCode,
                                   String permissions[], int[] 
grantResults) {
  switch (requestCode) {
    case MY_PERMISSIONS_REQUEST_READ_PHONE_STATE: {
        // If request is cancelled, the result arrays are empty.
        if (grantResults.length > 0
                && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

            // permission granted
            // do the required task here

        } else {
            // permission denied
        }
        return;
    }

  }
}

Answer 2

@shiriyas

我修正了错误。

感谢您的帮助。

问题在于我正在检查onCreate方法中的perms。

当我在PhoneCallEnd方法中检查perms时问题已解决

抱歉，这是我的第一个应用程序，你可以看到我没有很好地使用这些工具=（

android正确的方式来结束6.0版本的调用

2 个答案: