我已将我的应用定位到SDK版本23(Android Marsmallow)
当我尝试从我的应用程序中读取联系人时,我得到了此异常,但我在Android清单文件中提供了 READ_CONTACTS 权限。 我想简单的尝试捕获不是正确的处理。
例外详情:
引起:java.lang.SecurityException:Permission Denial:读取com.android.providers.contacts.ContactsProvider2 uri content://com.android.contacts/data from pid = 8373,uid = 10152需要android.permission。 READ_CONTACTS或grantUriPermission()
我的明确权限:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.READ_CONTACTS"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
答案 0 :(得分:9)
运行时权限
如果您需要添加的权限未列在正常权限下,则需要处理“运行时权限”。运行时权限是应用程序运行时所需的权限。这些权限将向用户显示一个对话框,类似于以下内容:
添加“运行时权限”的第一步是将其添加到AndroidManifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.codepath.androidpermissionsdemo" >
<uses-permission android:name="android.permission.READ_CONTACTS" />
...
</manifest>
您需要启动权限请求并处理结果。以下代码显示了如何在Activity的上下文中执行此操作,但也可以从Fragment中执行此操作。
// MainActivity.java
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// In an actual app, you'd want to request a permission when the user performs an action
// that requires that permission.
getPermissionToReadUserContacts();
}
// Identifier for the permission request
private static final int READ_CONTACTS_PERMISSIONS_REQUEST = 1;
// Called when the user is performing an action which requires the app to read the
// user's contacts
public void getPermissionToReadUserContacts() {
// 1) Use the support library version ContextCompat.checkSelfPermission(...) to avoid
// checking the build version since Context.checkSelfPermission(...) is only available
// in Marshmallow
// 2) Always check for permission (even if permission has already been granted)
// since the user can revoke permissions at any time through Settings
if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS)
!= PackageManager.PERMISSION_GRANTED) {
// The permission is NOT already granted.
// Check if the user has been asked about this permission already and denied
// it. If so, we want to give more explanation about why the permission is needed.
if (shouldShowRequestPermissionRationale(
Manifest.permission.READ_CONTACTS)) {
// Show our own UI to explain to the user why we need to read the contacts
// before actually requesting the permission and showing the default UI
}
// Fire off an async request to actually get the permission
// This will show the standard permission request dialog UI
requestPermissions(new String[]{Manifest.permission.READ_CONTACTS},
READ_CONTACTS_PERMISSIONS_REQUEST);
}
}
// Callback with the request from calling requestPermissions(...)
@Override
public void onRequestPermissionsResult(int requestCode,
@NonNull String permissions[],
@NonNull int[] grantResults) {
// Make sure it's our original READ_CONTACTS request
if (requestCode == READ_CONTACTS_PERMISSIONS_REQUEST) {
if (grantResults.length == 1 &&
grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, "Read Contacts permission granted", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "Read Contacts permission denied", Toast.LENGTH_SHORT).show();
}
} else {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
}
}
}
这里是原帖
https://guides.codepath.com/android/Understanding-App-Permissions
答案 1 :(得分:4)
这是我想要的。
完整的权限相关解决方案。希望它会帮助某人。