Android开发技巧大全

Android 开发技巧汇总 (1)

 <<android 开发技巧总汇 1>>

目录

 <<android 开发技巧总汇 1>>..........................................................................................................1

1. 入门实例剖析 1......................................................................................................................2

2.在测试时,如何实现一个提示.................................................................................................8

3.可以使用 AlertDialog.Builder 才产生一个提示框...............................................................9

4. menu 的用法.........................................................................................................................10

1. AbsoluteLayout.............................................................................................................20

7. Tab 以及2HostTab 操作.........................................................................................................21

8. List (图片/按钮/标题/文本).................................................................................................28

LIST 例一..........................................................................................................................28

LIST 例二..........................................................................................................................37

LIST 例三..........................................................................................................................41

9. 调用浏览器2载入某网址.....................................................................................................44

10.监控应用程序包的安装&删除..........................................................................................44

方法一:..............................................................................................................................44

方法二:..............................................................................................................................47

17. 开机自启动.........................................................................................................................57

18. 线程与子线程.....................................................................................................................58

handlerMessage 实例........................................................................................................59

19. Service.................................................................................................................................60

1. 什么是 Service..............................................................................................................60

2. 如何使用 Service..........................................................................................................61

3. Service 的生命周期......................................................................................................66

附) 常用界面截图:...................................................................................................................67

提示 1................................................................................................................................67

提示 2................................................................................................................................68

Android 开发技巧汇总 (1)

着实例进行动手实作，真正从“做”中体会和学习 Android 开发。

本文目标是 Android 自带的一个范例程序：记事本，

预备知识

搭建开发环境，尝试编写”Hello World，了解 Android 的基本概念，熟悉 Android 的 API(官

方文档中都有，不赘述)。

程序截图

先来简单了解下程序运行的效果

1 2

Android 开发技巧汇总 (1)

3 4

程序入口点

<intent-filter>

<action android:name="android.intent.action.MAIN"

/>

<category android:name="android.intent.category.LAUNCHER"

/>

</intent-filter>

NotesList 详解

就从入口点所在的 activity(见图 1)开始，可以看到这个 activity 最重要的功能就是显示日志

Android 开发技巧汇总 (1)

Notes.TITLE, // 1

};

private

static

final

int COLUMN_INDEX_TITLE =

1;

Intent intent = getIntent();

Notes.DEFAULT_SORT_ORDER);

SimpleCursorAdapter adapter =

new SimpleCursorAdapter(this, R.layout.noteslist_item, cursor,

new String[] { Notes.TITLE }, new

int[] { android.R.id.text1 });

setListAdapter(adapter);

Android 开发技巧汇总 (1)

android:paddingLeft="5dip"

android:singleLine="true"

@Override

{

// The caller is waiting for us to return a note selected by

// the user. The have clicked on one, so return it now.

setResult(RESULT_OK, new Intent().setData(uri));

// Launch activity to view/edit the currently selected item

startActivity(new Intent(Intent.ACTION_EDIT, uri));

}

}