custom content provider example in android

As a complete application, data storage operations are essential. Therefore, the android system provides four data storage methods. They are sharepreference, SQLite, content provider, and file. In Android, data is basically private and stored in the "Data/data/package name" directory. Therefore, to share data, use

know the hostname and path . Follow me to look at the source code, this time the contact app content provider's path is android4.4\packages\providers\contactsprovider . To open the manifest file, you can see the following information: provider android:name = "ContactsProvider2" android:authorities =" contacts;com.android.contacts " Span class= "Hljs-attribute" >android:label = "@string/provider_l

In the last note we wrote our own provider, this note, we will access the data via the content provider URI interface, rewriting the example in the Android learning Note (42). Here we are not fully describing how the relevant UI is written and can be viewed in detail in note

In our last note, we wrote our own provider, this note, we will access the data via the content provider URI interface and rewrite the example in the Android learning Note (42). Here we are not fully describing how the relevant UI is written and can be viewed in detail in no

1. ReviewThe previous study of the Android file storage, including storage on the SD card;2. Focus(1) Learn about one of the four components Content Provider(2) realize the contact person in the inquiry communication record(3) To implement new contacts to the communication record.3. Introduction(1) ContentProvider is more complex than other methods, but its funct

Then the above "Android content provider profile" is further implemented by content providers.Each content provider class uses a URI (Universal Resource Identifier, Universal Resource Identifier) as a separate identity, in the for

I. propose requirements Data in Applications A, B, and C must be shared. Therefore, content provider ContentProvider is defined in application B. application A modifies data in application B and inserts A data entry. In this case, the C application needs to receive a notification of data modification and process the corresponding operations. Ii. Sample Code [Java]/*** Operations on

[] selectionargs) public cursor query (URI Uri, string[] projection, string selection, string[] Selectionargs, string SortOrder) public string getType (Uri uri) Step Twothis contentprovider needs to be configured in Androidmanifest.xml using , in order for other applications to find the ContentProvider, ContentProvider uses a authorities (hostname/domain name) to uniquely identify it. Note: Once the app inherits the ContentProvider class, we'll refer to this

ContentProvider content provider: Allow other apps to access private databases (files)1.androidmanifest.xmlConfigure ProviderXML version= "1.0" encoding= "Utf-8"?>Manifestxmlns:android= "Http://schemas.android.com/apk/res/android" Package= "Com.example.dbtest"Android:versioncode= "1"Android:versionname= "1.0" > USES-SDKandroid:minsdkversion= "8"android:targets

Tagged with: Android database, SQLite JUnit for Android1. We first new one our own class integration contentprovider, and the implementation method is as followsPackage Com.wzw.sqllitedemo.providers;import Com.wzw.sqllitedemo.db.personsqliteopenhelper;import Android.content.contentprovider;import Android.content.contenturis;import Android.content.contentvalues;import Android.content.urimatcher;import Android.database.cursor;import Android.database.sql

bookmarks and browsing history. Calllog stores missed calls and call records. Contacts stores contact details. Mediastore stores media files, such as audio, video, and images. Settings stores some configuration information about the device. In addition to these built-in contentproviders, you can also create your own contentprovider. To query a contentprovider, you must specify a query string in Uri format and a row. The URI query format is as follows: The URI components are as follows:

2 content providers ContentProviderI. Introduction of ContentProviderWhenApplicationInherit the ContentProvider class and override the class's methods for providing data and storing data, and you can share its data with other apps. While other methods can be used to share data externally, data access will vary depending on how the data is stored, such as: usingfileWay to share data, need to file operation read and write data, using Sharedpreferences t

The following is the flow of source application to the content provider in Query Target application, where only the content provider is started.The picture above are the flow chart for how Content Providers started(1) Source APP Inform AMS to query the

Next, go to the android content providers (II) -- contacts provider to continue. Next, we will describe the top-level contacts, the contacts is the aggregate contact table, and the rawcontacts discussed earlier is the original contact table, in the architecture of the android address book, there are three layers: Aggre