java 尝试访问 Android 中的联系人时的权限拒绝
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时间：2020-11-02 16:50:09 来源:igfitidea点击:
Permission Denial when trying to access contacts in Android
提问by Brady131313
I am trying to access the contacts on the device and later display them in a list, however when I try to access them with a cursor, I get an error that I'm missing permissions for READ_CONTACTS but I have already gave permissions in my AndroidManifest.xml
我正在尝试访问设备上的联系人，然后将它们显示在列表中，但是当我尝试使用光标访问它们时，出现错误，提示我缺少 READ_CONTACTS 的权限，但我已经在我的 AndroidManifest 中授予了权限.xml
Code where I access Contacts:
我访问联系人的代码：
public void setupCursor() {
Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
while (cursor.moveToNext()) {
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String number = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
Toast.makeText(this, name + ": " + number, Toast.LENGTH_SHORT).show();
}
cursor.close();
}
AndroidManifest.xml
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="io.github.brady131313.textback" >
<uses-sdk android:minSdkVersion="15" android:targetSdkVersion="21"/>
<uses-permission android:name="ANDROID.PERMISSION.READ_CONTACTS"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".ActivityMainSettings"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".ActivityContactSelect"
android:label="Select Contacts">
</activity>
</application>
</manifest>
Error Log
错误日志
05-17 17:12:41.544 20202-20202/io.github.brady131313.textback E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: io.github.brady131313.textback, PID: 20202
java.lang.RuntimeException: Unable to start activity ComponentInfo{io.github.brady131313.textback/io.github.brady131313.textback.ActivityContactSelect}: java.lang.SecurityException: Permission Denial: opening provider com.android.providers.contacts.ContactsProvider2 from ProcessRecord{14c069a9 20202:io.github.brady131313.textback/u0a90} (pid=20202, uid=10090) requires android.permission.READ_CONTACTS or android.permission.WRITE_CONTACTS
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2661)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)
at android.app.ActivityThread.access0(ActivityThread.java:172)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1421)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5835)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
Caused by: java.lang.SecurityException: Permission Denial: opening provider com.android.providers.contacts.ContactsProvider2 from ProcessRecord{14c069a9 20202:io.github.brady131313.textback/u0a90} (pid=20202, uid=10090) requires android.permission.READ_CONTACTS or android.permission.WRITE_CONTACTS
at android.os.Parcel.readException(Parcel.java:1540)
at android.os.Parcel.readException(Parcel.java:1493)
at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:3582)
at android.app.ActivityThread.acquireProvider(ActivityThread.java:5081)
at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:2926)
at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1452)
at android.content.ContentResolver.query(ContentResolver.java:468)
at android.content.ContentResolver.query(ContentResolver.java:428)
at io.github.brady131313.textback.ActivityContactSelect.setupCursor(ActivityContactSelect.java:46)
at io.github.brady131313.textback.ActivityContactSelect.onCreate(ActivityContactSelect.java:32)
at android.app.Activity.performCreate(Activity.java:6221)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2614)
????????????at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)
????????????at android.app.ActivityThread.access0(ActivityThread.java:172)
????????????at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1421)
????????????at android.os.Handler.dispatchMessage(Handler.java:102)
????????????at android.os.Looper.loop(Looper.java:145)
????????????at android.app.ActivityThread.main(ActivityThread.java:5835)
????????????at java.lang.reflect.Method.invoke(Native Method)
????????????at java.lang.reflect.Method.invoke(Method.java:372)
????????????at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1388)
????????????at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1183)
Any help will be appreciated!
任何帮助将不胜感激！
采纳答案by Lucas Crawford
Add the uses-permission outside the application tag and make the android.permission lowercase. that should fix it as agreed below in comments
在应用程序标签外添加 uses-permission 并使 android.permission 小写。这应该按照下面评论中的约定进行修复
回答by ThetNaing Mizo
Since the new runtime permission modelis introduced in Android 6.0,
由于在 Android 6.0 中引入了新的运行时权限模型，
Hope this code will help if you want to use runtime permission model. You can also see detail implementation and get source code from here.
如果您想使用运行时权限模型，希望此代码会有所帮助。您还可以从此处查看详细实现并获取源代码。
import android.Manifest;
import android.content.ContentResolver;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.os.Build;
import android.provider.ContactsContract;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
// The ListView
private ListView lstNames;
// Request code for READ_CONTACTS. It can be any number > 0.
private static final int PERMISSIONS_REQUEST_READ_CONTACTS = 100;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Find the list view
this.lstNames = (ListView) findViewById(R.id.lstNames);
// Read and show the contacts
showContacts();
}
/**
* Show the contacts in the ListView.
*/
private void showContacts() {
// Check the SDK version and whether the permission is already granted or not.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, PERMISSIONS_REQUEST_READ_CONTACTS);
//After this point you wait for callback in onRequestPermissionsResult(int, String[], int[]) overriden method
} else {
// Android version is lesser than 6.0 or the permission is already granted.
List<String> contacts = getContactNames();
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, contacts);
lstNames.setAdapter(adapter);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions,
int[] grantResults) {
if (requestCode == PERMISSIONS_REQUEST_READ_CONTACTS) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// Permission is granted
showContacts();
} else {
Toast.makeText(this, "Until you grant the permission, we canot display the names", Toast.LENGTH_SHORT).show();
}
}
}
/**
* Read the name of all the contacts.
*
* @return a list of names.
*/
private List<String> getContactNames() {
List<String> contacts = new ArrayList<>();
// Get the ContentResolver
ContentResolver cr = getContentResolver();
// Get the Cursor of all the contacts
Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
// Move the cursor to first. Also check whether the cursor is empty or not.
if (cursor.moveToFirst()) {
// Iterate through the cursor
do {
// Get the contacts name
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
contacts.add(name);
} while (cursor.moveToNext());
}
// Close the curosor
cursor.close();
return contacts;
}
}
回答by Zhangjun Xu
i had same situation like what you have, basically you only need change "android.permission.READ_CONTACTS" to lowercase for the first half you the permission.
我有和你一样的情况，基本上你只需要在前半部分将“android.permission.READ_CONTACTS”更改为小写即可。
