安卓权限READ_CONTACT

Question

为什么我会收到这条消息

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如果I在清单文件中设置权限：

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谢谢你的帮助。

Answer 1

在android >= 6.0中需要在运行时请求权限

https://developer.android.com/training/permissions/requesting.html

Answer 2

你必须在安卓版本的>=6.0 (棉花糖或更高版本)中使用grant permission。

Answer 3

对于Android 6.0+，您必须在运行时请求权限，并将其添加到清单中。因此，将类似下面的内容添加到您的活动onCreate()；

List<String> permissions = new ArrayList<>();
permissions.add(Manifest.permission.READ_CONTACTS);
//...add any others you need to this arraylist

// Convert the List to an Array
String[] permissionsArray = permissions.toArray(new String[0]);
ActivityCompat.requestPermissions(getActivity(), permissionsArray, REQUEST_CODE);
//The REQUEST_CODE is just a integer that your callback method will check, set it to some number

然后在您的活动中重写此方法，以检查请求是否被批准

@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
    switch (requestCode) {
    case REQUEST_CODE: {
        if (grantResults.length > 0
            && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

            //Permission Granted, do your thing

        } else {

            //Permission denied, you can't do what you want to because user didn't give you permission

        }
        return;
    }
}

有关更多信息，请参阅此处https://developer.android.com/training/permissions/requesting.html