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希望不是一種愚蠢的問題，但我的應用程序工作，直到兩天前，但之後，我得到OTA更新升級到棉花糖。之後，不僅我無法獲取我的聯繫人列表，甚至顯示聯繫人列表的默認設備應用程序也不會顯示任何聯繫人。我從Play商店下載了幾個Contact Management應用程序，甚至不顯示任何東西。我甚至不能發送/接收短信:)我想知道wtf正在發生。在棉花糖中訪問聯繫人列表是否改變了？
好的，讓我砍掉b.s並分享我所做的。 我根據Marshmallow需要的新動態權限請求更改了代碼。我啓動應用程序，並授予訪問聯繫人，但沒有顯示:(
這是我的代碼，對不起，我知道很長，但很簡單：
public class MainActivity extends AppCompatActivity
{
private static final String TAG = MainActivity.class.getSimpleName();
private static final int MY_PERMISSIONS_REQUEST_READ_CONTACTS = 10;
private SwipeRefreshLayout mRefreshLayout;
private RecyclerView mRecyclerView;
private ContactsAdapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
Log.d(TAG, "********************************");
Log.d(TAG, "*** Contacts Remover Started ***");
Log.d(TAG, "********************************");
setContentView(R.layout.activity_main);
mRecyclerView = (RecyclerView) findViewById(R.id.recyclerView);
mRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.refreshScreen);
mRefreshLayout.setOnRefreshListener(this::refreshLayout);
mRefreshLayout.setColorSchemeResources(android.R.color.holo_blue_bright,
android.R.color.holo_green_light,
android.R.color.holo_orange_light,
android.R.color.holo_red_light);
// use this setting to improve performance if you know that changes
// in content do not change the layout size of the RecyclerView
mRecyclerView.setHasFixedSize(true);
// use a linear layout manager
mLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(mLayoutManager);
// create adapter
mAdapter = new ContactsAdapter();
mRecyclerView.setAdapter(mAdapter);
// Check required permissions
checkContactPermission();
}
private void checkContactPermission()
{
Log.d(TAG, "Yu");
if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED ||
ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_CONTACTS) != PackageManager.PERMISSION_GRANTED)
{
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.READ_CONTACTS))
{
// 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, we can request the permission.
ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_CONTACTS,
Manifest.permission.WRITE_CONTACTS}, MY_PERMISSIONS_REQUEST_READ_CONTACTS);
}
}
else
{
Log.d(TAG, "Perms granted");
// Get Contacts and display it
refreshLayout();
}
}
@Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults)
{
switch (requestCode)
{
case MY_PERMISSIONS_REQUEST_READ_CONTACTS:
{
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
{
// Get Contacts and display it
refreshLayout();
}
else
{
this.finish();
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}
private List<Contact> getContactList()
{
Log.d(TAG, "2");
List<Contact> contactList = new ArrayList<>(100);
ContentResolver cr = getContentResolver();
Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
Log.d(TAG, "3");
if (cur != null && cur.getCount() > 0)
{
int i = 0;
Log.d(TAG, "4");
while (cur.moveToNext())
{
i++;
Log.d(TAG, "-> " + i);
Contact contact = new Contact();
contact.setId(cur.getString(cur.getColumnIndex(ContactsContract.Contacts._ID)));
contact.setName(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)));
contact.setImageAddress(cur.getString(cur.getColumnIndex(ContactsContract.Contacts.PHOTO_THUMBNAIL_URI)));
contactList.add(contact);
}
cur.close();
Log.d(TAG, "5");
}
Log.d(TAG, String.format("Number of %s contacts found", contactList.size()));
return contactList;
}
private Observable<Contact> getApps()
{
Log.d(TAG, "1");
return Observable.create(subscriber -> {
List<Contact> contactList = getContactList();
Log.d(TAG, "6");
if (subscriber.isUnsubscribed())
{
return;
}
Log.d(TAG, "7");
for (Contact contact : contactList)
{
subscriber.onNext(contact);
}
Log.d(TAG, "8");
if (!subscriber.isUnsubscribed())
{
subscriber.onCompleted();
}
Log.d(TAG, "9");
});
}
private void refreshLayout()
{
Log.d(TAG, "0");
if (mRefreshLayout.isRefreshing())
{
return;
}
mRefreshLayout.setRefreshing(true);
getApps().toSortedList()
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Observer<List<Contact>>()
{
@Override
public void onCompleted()
{
Log.d(TAG, "10");
Toast.makeText(MainActivity.this, "List updated!", Toast.LENGTH_LONG).show();
mRefreshLayout.setRefreshing(false);
}
@Override
public void onError(Throwable e)
{
Log.d(TAG, "ERROR!!!");
Toast.makeText(MainActivity.this, "Shit! Something went wrong :(", Toast.LENGTH_LONG).show();
mRefreshLayout.setRefreshing(false);
}
@Override
public void onNext(List<Contact> contactList)
{
Log.d(TAG, "*");
mAdapter.setContactList(contactList);
mAdapter.notifyDataSetChanged();
}
});
}
}
最後我的日誌：
10-15 01:05:46.239 1514-1514/? D/MainActivity: ********************************
10-15 01:05:46.239 1514-1514/? D/MainActivity: *** Contacts Remover Started ***
10-15 01:05:46.239 1514-1514/? D/MainActivity: ********************************
10-15 01:05:46.285 1514-1514/? D/MainActivity: Yu
10-15 01:05:46.287 1514-1514/? D/MainActivity: Perms granted
10-15 01:05:46.287 1514-1514/? D/MainActivity: 0
10-15 01:05:46.288 1514-1514/? D/MainActivity: 1
10-15 01:05:46.306 1514-14799/? D/MainActivity: 2
出事了這一行，Cursor cur = cr.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);，沒有錯誤，不死機，不報告！只是什麼:(
入住這https://developer.android.com/training/permissions/requesting.html – Sunny
@Sunny，正是你說的是哪一部分，是啊，我讀了設計過程中一個與工作正常基於我的日誌。 – Hesam