android-contentprovider

how to create one .vcf file for all the contact in android

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问题 i want to crate one .vcf for all contact using below code . the below code is work fine to crate .vcf file but it storing only one contact. please help me.. import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.util.ArrayList; import android.app.Activity; import android.content.res.AssetFileDescriptor; import android.database.Cursor; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider

Writing custom Content Provider for photos on phone (part 2)

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问题 I'm working on a custom Content Provider for my app. This is part of a course I'm taking on Android apps, so please don't expect the rationale for doing all this to be too great ;-) The whole point here is for me to learn about CP. I've got a previous post which goes on and on with this, but I think I've managed to simplify my problem quite a bit. So, I'm working on a "gallery app". Since I don't know how and where thumbnail images are stored on the phone, I've decided to simply use

What is the equivalent of Android content provider in IOS?

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问题 What is the equivalent of Android's content provider in iOS? Summary: A content provider manages access to a central repository of data. A provider is part of an Android application, which often provides its own UI for working with the data. However, content providers are primarily intended to be used by other applications, which access the provider using a provider client object. Together, providers and provider clients offer a consistent, standard interface to data that also handles inter

How to make notifyChange() work between two activities?

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问题 I have an activity ActitvityA that holds a listview populated by a CursorLoader. I want to switch to ActivityB and change some data and see those changes reflected in listview in ActivityA. public class ActivityA implements LoaderManager.LoaderCallbacks<Cursor> { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_a); getSupportLoaderManager().initLoader(LOADER_ID, null, this); mCursorAdapter = new MyCursorAdapter(

Broadcast Intent on contact added/edited/changed - android

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问题 In my app, I have a service in which I want to listen for any changes in contacts i.e., when any contact is added or edited in the native contacts app or through any other app. Is there any broadcast intent which I can register to for this purpose? Or is there any other way to achieve this? 回答1: Found someone with a similar problem, his solution was using RawContacts. Broadcast on contact add/change? http://developer.android.com/reference/android/provider/ContactsContract.RawContacts.html 来源：

What is cursor.setNotificationUri() used for?

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I did research on how to use ContentProviders and Loaders from this tutorial How I see it: We have an Activity with ListView , SimpleCursorAdapter and CursorLoader . We also implement ContentProvider . In an Activity we can call getContentResolver().insert(URI, contentValues); via a button click. In our implementation of ContentProvider , at the end of insert() method, we call getContentResolver().notifyChange(URI, null); and our CursorLoader will receive message that it should reload data and update UI. Also if we use FLAG_REGISTER_CONTENT_OBSERVER in SimpleCursorAdapter it will also receive

Android. Content provider or Database?

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I'm a bit confused in the question, if it's better to use ContentProvider or Database . Or it makes no difference if I don't want to share any data with other applications. If I've understood it right, content providers based on SQLite DBs and it's also possible that content of them is only accessable for my application. Can you give some explanations? Thank you very much, Mur There certainly are worthwhile problems for which a provider is a solution, particularly for cross-app data publishing. For example, you need to use a content provider to supply search suggestions to a Quick Search Box.

Getting an image from Gallery on from the Picasa//Google + synced folders doesn't work

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I am trying to get an image from the gallery app from one of the folders from the Google+ synced photos. After selecting the image, the Uri is being passed back correctly. But when I try to get the actual path of that image on the storage device, so that I can use it, it crashes. The problem seems to be specifically with the picasa content provider . Tested on Nexus S and Nexus 7, and other devices as well. E/AndroidRuntime(14572): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { dat=content://com.google.android.gallery3d.provider

Why my ContentObserver is not being called when I send an SMS?

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问题 I am trying to detect when a SMS is sent. I have searched on the web and on StackOverflow and all seems to be the same solution. I have a simple Activity that starts a Service and in the service I am trying to detect when a SMS is sent: MainActivity.java import android.os.Bundle; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.util.Log; import android.view

Specifying limit / offset for ContentProvider queries

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I'm trying to get my ContentResolver to run this query: select * from myTable limit 1 offset 2 The only query method in ContentResolver is: resolver.query(uri, projection, selection, selectionArgs, sortOrder); I've tried: final Cursor c = resolver.query( MyTable.CONTENT_URI, MyTable.PROJECTION, " ? ?", new String[] {"1", "2"}, null); Which just throws an IllegaLArgumentException. What is the correct way of achieving this? Ian Warwick I put the LIMIT clause in the sordOrder parameter, I've also seen the same thing done by others but not sure if its 100% correct: final Cursor c = resolver.query(