10 2014 档案
摘要:1. Processes and Threads When an application component starts and the application does not have any other components running, the Android system star...
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摘要:The Android Home screen available on most Android devices allows the user to embed app widgets for quick access to content.
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摘要:1. App Widgets App Widgets are miniature application views that can be embedded in other applications (such as the Home screen) and receive periodic ...
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摘要:1. Storage Access Framework Android 4.4 (API level 19) introduces the Storage Access Framework (SAF). The SAF makes it simple for users to browse and...
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摘要:1. Calendar Provider The Calendar Provider is a repository for a user's calendar events. The Calendar Provider API allows you to perform query, inser...
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摘要:A content provider manages access to a central repository of data. You implement a provider as one or more classes in an Android application, along wi...
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摘要:1. Content Providers A content provider manages access to a central repository of data. A provider is part of an Android application, which often pr...
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摘要:AIDL (Android Interface Definition Language) is similar to other IDLs you might have worked with.
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摘要:1. Bound Services A bound service is the server in a client-server interface. A bound service allows components (such as activities) to bind to the s...
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摘要:1.Services A Service is an application component that can perform long-running operations in the background and does not provide a user interface. A...
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摘要:1. Tasks and Back Stack An application usually contains multiple activities. Each activity should be designed around a specific kind of action the us...
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摘要:1. Loaders loaders make it easy to asynchronously load data in an activity or fragment. Loaders have these characteristics: They are available to ...
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摘要:1. Fragments A Fragment represents a behavior or a portion of user interface in an Activity. You can combine multiple fragments in a single activity...
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摘要:1. Activities An Activity is an application component that provides a screen with which users can interact in order to do something, such as dial the...
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摘要:1. Intent and Intent Filters An Intent is a messaging object you can use to request an action from another app component. Although intents facilitate...
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摘要:1. App Fundamentals2. Device Compatibility3. System Permissions1. App Fundamentals 1.1 App Components Activities An activity represents a sin...
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摘要:1. 什么是Fragment2. 什么时候使用Fragment3. Fragment程序的编写方法4. Fragment的生命周期5. Fragment与Activity之间的交互6. Fragment的回调机制1. 什么是Fragment 同时封装布局和代码的组件2. 什么时候使用Fragmen...
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摘要:1. 定制控件的方式2. 带标签的文本编辑框(不带命名空间)3. 带图标的文本框(带命名空间)4. 控件属性验证1. 定制控件的方式 继承其他控件类 Ctrl + 左键 --->EditText 组合方式. 当前控件类从容器类继承, 并将若干个控件添加到当前容器中 绘制控件. 也...
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摘要:1. 霓虹灯效果2. 实现屏幕四角和居中摆放控件3. 更复杂的线性布局4. 实现Panel效果1. 霓虹灯效果2. 实现屏幕四角和居中摆放控件 1 6 7 13 19 25 31 36 37 38 3. 更复杂的线性布局4. 实现Panel效果
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摘要:1. 学习源代码的目的2. 如何下载源代码3. 在Eclipse中跟踪源代码4. Android源代码的结构1. 学习源代码的目的 理解 Android API 查找 API 高级应用开发(ROM定制)2. 如何下载源代码3. 在Eclipse中跟踪源代码 Ctrl + 鼠标左键 ---> ...
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摘要:1 11 12 18 24 32 33 1 package com.example.imageview; 2 3 import java.io.ByteArrayOutputStream; 4 import java.io.File; 5 im...
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摘要:实现点击Button选择文件, 在TextView上显示Uri 1 10 11 16 22 23 1 package com.example.filetest; 2 3 import android.app.Activity; 4 import android.content.I...
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摘要:
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摘要:1. Classes, Superclasses, and Subclasses2. Objects: The Cosmic Superclass3. Generic Array Lists4. Objects wrappers and Autoboxing5. Methods with a Var...
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