MIME Type Reference Content providers can return standard MIME media types, or custom MIME type strings, or both. provider支持标准MIME和自定义的MIME MIME types have the format 标准MIME格式如下: type/subtype For example, the well-known MIME type text/html has the te…

Creating a Content Provider In this document Designing Data Storage Designing Content URIs Implementing the ContentProvider Class Required Methods Implementing the query() method Implementing the insert() method Implementing the delete() method Imple…

The <provider> Element Like Activity and Service components, a subclass of ContentProvider must be defined in the manifest file for its application, using the <provider> element. The Android system gets the following information from the eleme…

Alternative Forms of Provider Access Three alternative forms of provider access are important in application development: Batch access: You can create a batch of access calls with methods in the ContentProviderOperation class, and then apply them wit…

Provider Data Types Content providers can offer many different data types. The User Dictionary Provider offers only text, but providers can also offer the following formats: integer long integer (long) floating point long floating point (double) Anot…

Inserting, Updating, and Deleting Data In the same way that you retrieve data from a provider, you also use the interaction between a provider client and the provider's ContentProvider to modify data. You call a method of ContentResolver with argumen…

In this document Overview Accessing a provider Content URIs Content Provider Basics 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…

Content Providers Content providers manage access to a structured set of data. They encapsulate the data, and provide mechanisms for defining data security. Content providers are the standard interface that connects data in one process with code runn…

Custom Components In this document The Basic Approach Fully Customized Components Compound Controls Modifying an Existing View Type Android offers a sophisticated and powerful componentized model for building your UI, based on the fundamental layout…

Styling the Action Bar If you want to implement a visual design that represents your app's brand, the action bar allows you to customize each detail of its appearance, including the action bar color, text colors, button styles, and more. To do so, yo…