Question

我正在onCreate方法中运行此代码以尝试获得许可，但是由于某种原因，它给了我错误：

需要不兼容的类型int发现此部分为布尔值：if （ContextCompat.checkSelfPermission（MainActivity.this， android.Manifest.permission.READ_SMS）+ ContextCompat.checkSelfPermission（MainActivity.this， android.Manifest.permission.SEND_SMS））

 @Override
    protected void onCreate(Bundle savedInstanceState) {


            if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.READ_SMS) +
                    ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.SEND_SMS))
        != PackageManager.PERMISSION_GRANTED) {
            if (AppCompatActivity.shouldShowRequestPermissionRationale(this,"Manifest.permission.READ_SMS") ||
                    AppCompatActivity.shouldShowRequestPermissionRationale(this,"Manifest.permission.READ_SMS")) {

                // Show an explanation to the user *asynchronously* -- don't block
                // this thread waiting for the user's response! After the user
                // sees the explanation, try again to request the permission.

            } else {

                // No explanation needed; request the permission
                ActivityCompat.requestPermissions(this,
                        new String[]{"Manifest.permission.READ_SMS, Manifest.permission.SEND_SMS"},
                        REQUEST_CODE);

                // REQUEST_CODE is an
                // app-defined int constant. The callback method gets the
                // result of the request.
            }
        }

else {
            // Permission has already been granted
        }

Answer 1

在“如果”条件开始时，一个开放的圆括号丢失了：

if (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.READ_SMS) + ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.SEND_SMS)) != PackageManager.PERMISSION_GRANTED){......}

您有3个开放式括号和4个封闭的括号。

这是您应该拥有的：

if ((ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.READ_SMS) + ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.SEND_SMS)) != PackageManager.PERMISSION_GRANTED){.....}

Answer 2

ContextCompat.checkSelfPermission(MainActivity.this,
    android.Manifest.permission.READ_SMS) + 
    ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.SEND_SMS))
    != PackageManager.PERMISSION_GRANTED

这部分不是有效的Java语句。

您可能想要这样的东西：

if ((ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.READ_SMS) != PackageManager.PERMISSION_GRANTED)
        ||    (ContextCompat.checkSelfPermission(MainActivity.this, android.Manifest.permission.SEND_SMS)
    != PackageManager.PERMISSION_GRANTED))

不兼容的类型Android是否允许权限？

2 个答案: