未批注参数覆盖@NonNull参数:我应该将解决方案代码放在哪里?

Question

我正在尝试一个从安卓应用程序发送短信的基本程序。但是现在当我运行该应用程序时，单击发送短信按钮后没有任何反应。我没有看到错误消息。

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] 
    permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_SEND_SMS: {
            if (grantResults.length > 0
                && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    SmsManager smsManager = SmsManager.getDefault();
                    smsManager.sendTextMessage(phoneNo, null, message, null, null);
                    Toast.makeText(getApplicationContext(), "SMS sent.",
                            Toast.LENGTH_LONG).show();
                } else {
                    Toast.makeText(getApplicationContext(),
                            "SMS faild, please try again.", Toast.LENGTH_LONG).show();
                    //return;
                }
            }
        }
    }

Answer 1

阅读有关onRequestPermissionsResult()的信息

您需要在onRequestPermissionsResult()中传递NonNull参数

参数

• requestCode int：传入的请求代码
• permissions String：请求的权限。从不为空。
• grantResults int：相应权限的授予结果为PERMISSION_GRANTED或PERMISSION_DENIED。从不为空。

示例代码

 @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            case MY_PERMISSIONS_REQUEST_SEND_SMS: {
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    SmsManager smsManager = SmsManager.getDefault();
                    smsManager.sendTextMessage(phoneNo, null, message, null, null);
                    Toast.makeText(getApplicationContext(), "SMS sent.",
                            Toast.LENGTH_LONG).show();
                } else {
                    Toast.makeText(getApplicationContext(),
                            "SMS faild, please try again.", Toast.LENGTH_LONG).show();
                    //return;
                }
            }
        }
    }