android-annotations使用入门

转载请标明出处：http://write.blog.csdn.net/postedit/41577317

androidannotation是一个非常牛逼的框架（https://github.com/excilys/androidannotations/wiki），可以做到：依赖注入（Dependency Injection），简化的线程模型（Simplified  threading model)，事件绑定（Event binding），REST Client。

[html] view plaincopy

1. <?xml version="1.0" encoding="utf-8"?>  
2. <manifest xmlns:android="http://schemas.android.com/apk/res/android"  
3.     package="com.example.hello"  
4.     android:versionCode="1"  
5.     android:versionName="1.0" >  
6.     <uses-sdk  
7.         android:minSdkVersion="14"  
8.         android:targetSdkVersion="18" />  
9.     <application  
10.         android:allowBackup="true"  
11.         android:icon="@drawable/ic_launcher"  
12.         android:label="@string/app_name">  
13.         <activity  
14.             android:name="com.example.hello.MainActivity_"  
15.             android:label="@string/app_name" >  
16.             <intent-filter>  
17.                 <action android:name="android.intent.action.MAIN" />  
18.                 <category android:name="android.intent.category.LAUNCHER" />  
19.             </intent-filter>  
20.         </activity>  
21.         <activity android:name="com.example.hello.SecondActivity_" />  
22.     </application>  
23. </manifest>  

[java] view plaincopy

1. @EActivity(R.layout.activity_main)  
2. public class MainActivity extends Activity {  
3.     @ViewById(R.id.myInput)  
4.     EditText myInput;  
5.     @ViewById(R.id.myTextView)  
6.     TextView textView;  
7.     @ViewById(R.id.myButton2)  
8.     Button btn2;  
9.     @StringRes(R.string.go_to_second)  
10.     String btn2Txt;  
11.     @AfterViews  
12.     protected void afterViews(){  
13.         btn2.setText(btn2Txt);  
14.     }  
15.     @Click  
16.     void myButton() {  
17.         String name = myInput.getText().toString();  
18.         textView.setText("Hello " + name);  
19.     }  
20.     @Click  
21.     void myButton2(){  
22.         SecondActivity_.intent(this).start();  
23.     }  
24. }  
25. activity_main.xml  
26. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
27.     xmlns:tools="http://schemas.android.com/tools"  
28.     android:layout_width="match_parent"  
29.     android:layout_height="match_parent"  
30.     android:orientation="vertical" >  
31.     <EditText    
32.         android:id="@+id/myInput"  
33.         android:layout_width="fill_parent"   
34.         android:layout_height="wrap_content"  />  
35.     <Button    
36.         android:id="@+id/myButton"  
37.         android:layout_width="fill_parent"   
38.         android:layout_height="wrap_content"   
39.         android:text="Click me!" />          
40.     <TextView    
41.         android:id="@+id/myTextView"  
42.         android:layout_width="fill_parent"   
43.         android:layout_height="wrap_content" />      
44.     <Button    
45.         android:id="@+id/myButton2"  
46.         android:layout_width="fill_parent"   
47.         android:layout_height="wrap_content"   
48.         android:text="@string/go_to_second"/>    
49. </LinearLayout>  

[html] view plaincopy

1. <plugin>  
2.     <artifactId>maven-compiler-plugin</artifactId>  
3.     <version>3.1</version>  
4.     <configuration>  
5.         <encoding>UTF-8</encoding>  
6.         <source>1.6</source>  
7.         <target>1.6</target>  
8.         <compilerArgs>  
9.             <arg>-Atrace=true</arg>  
10.             <arg>-AlogLevel=trace</arg>  
11.             <arg>-AlogConsoleAppender=true</arg>  
12.    <arg>-AandroidManifestFile=/path/to/AndroidManifest.xml</arg>  
13.         </compilerArgs>  
14.     </configuration>  
15. </plugin>  

[java] view plaincopy

1. public final class MainActivity_ extends MainActivity{  
2.     @Override  
3.     public void onCreate(Bundle savedInstanceState) {  
4.         init_(savedInstanceState);//这里会处理@StringRes，@ColorRes等等  
5.         super.onCreate(savedInstanceState);  
6.         setContentView(layout.activity_main);//这里对应@EActivity(R.layout.activity_main)  
7.     }  
8.   
9.   
10.     private void init_(Bundle savedInstanceState) {  
11.         Resources resources_ = this.getResources();  
12.         btn2Txt = resources_.getString(string.go_to_second);  
13.     }  
14.   
15.   
16.     @Override  
17.     public void setContentView(int layoutResID) {  
18.         super.setContentView(layoutResID);  
19.         afterSetContentView_();  
20.     }  
21.   
22.   
23.     @Override  
24.     public void setContentView(View view, LayoutParams params) {  
25.         super.setContentView(view, params);  
26.         afterSetContentView_();  
27.     }  
28.   
29.   
30.     @Override  
31.     public void setContentView(View view) {  
32.         super.setContentView(view);  
33.         afterSetContentView_();  
34.     }  
35.   
36.   
37.     private void afterSetContentView_() {  
38. //@ViewById  
39.         textView = ((TextView) findViewById(id.myTextView));  
40.         myInput = ((EditText) findViewById(id.myInput));  
41.         btn2 = ((Button) findViewById(id.myButton2));  
42. //@Click  
43.         {  
44.             View view = findViewById(id.myButton2);  
45.             if (view!= null) {  
46.                 view.setOnClickListener(new OnClickListener() {  
47.   
48.   
49.   
50.   
51.                     @Override  
52.                     public void onClick(View view) {  
53.                         MainActivity_.this.myButton2();  
54.                     }  
55.   
56.   
57.                 }  
58.                 );  
59.             }  
60.         }  
61. //@Click  
62.         {  
63.             View view = findViewById(id.myButton);  
64.             if (view!= null) {  
65.                 view.setOnClickListener(new OnClickListener() {  
66.   
67.   
68.   
69.   
70.                     @Override  
71.                     public void onClick(View view) {  
72.                         MainActivity_.this.myButton();  
73.                     }  
74.   
75.   
76.                 }  
77.                 );  
78.             }  
79.         }  
80.         afterViews();//这里调用了@AfterViews标注的afterViews()方法  
81.     }  
82.     public static MainActivity_.IntentBuilder_ intent(Context context) {  
83.         return new MainActivity_.IntentBuilder_(context);  
84.     }  
85.     public static class IntentBuilder_ {//这个是给startActivity和startActivityForResult用的  
86.         private Context context_;  
87.         private final Intent intent_;  
88.   
89.   
90.         public IntentBuilder_(Context context) {  
91.             context_ = context;  
92.             intent_ = new Intent(context, MainActivity_.class);  
93.         }  
94.   
95.   
96.         public Intent get() {  
97.             return intent_;  
98.         }  
99.   
100.   
101.         public MainActivity_.IntentBuilder_ flags(int flags) {  
102.             intent_.setFlags(flags);  
103.             return this;  
104.         }  
105.   
106.   
107.         public void start() {  
108.             context_.startActivity(intent_);  
109.         }  
110.   
111.   
112.         public void startForResult(int requestCode) {  
113.             if (context_ instanceof Activity) {  
114.                 ((Activity) context_).startActivityForResult(intent_, requestCode);  
115.             } else {  
116.                 context_.startActivity(intent_);  
117.             }  
118.         }  
119.     }  
120. }  

最后看一下完整的pom.xml的例子（https://github.com/excilys/androidannotations/blob/develop/examples/maveneclipse/pom.xml）：

[html] view plaincopy

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  
3.     <modelVersion>4.0.0</modelVersion>  
4.     <groupId>org.androidannotations</groupId>  
5.     <artifactId>maveneclipse</artifactId>  
6.     <version>0.0.1-SNAPSHOT</version>  
7.     <packaging>apk</packaging>  
8.     <name>maveneclipse</name>  
9.   
10.     <properties>  
11.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>  
12.         <android.version>4.1.1.4</android.version>  
13.         <android.platform>16</android.platform>  
14.         <androidannotations.version>3.2</androidannotations.version>  
15.         <java.version>1.6</java.version>  
16.     </properties>  
17.   
18.     <dependencies>  
19.         <dependency>  
20.             <groupId>com.google.android</groupId>  
21.             <artifactId>android</artifactId>  
22.             <version>${android.version}</version>  
23.             <scope>provided</scope>  
24.         </dependency>  
25.         <dependency>  
26.             <groupId>org.androidannotations</groupId>  
27.             <artifactId>androidannotations</artifactId>  
28.             <version>${androidannotations.version}</version>  
29.             <scope>provided</scope>  
30.         </dependency>  
31.         <dependency>  
32.             <groupId>org.androidannotations</groupId>  
33.             <artifactId>androidannotations-api</artifactId>  
34.             <version>${androidannotations.version}</version>  
35.         </dependency>  
36.     </dependencies>  
37.   
38.     <build>  
39.         <plugins>  
40.             <plugin>  
41.                 <artifactId>maven-compiler-plugin</artifactId>  
42.                 <version>3.1</version>  
43.                 <configuration>  
44.                     <source>${java.version}</source>  
45.                     <target>${java.version}</target>  
46.                     <compilerArgs>  
47.                         <arg>-AlogLevel=trace</arg>  
48.                     </compilerArgs>  
49.                 </configuration>  
50.             </plugin>  
51.             <plugin>  
52.                 <groupId>com.jayway.maven.plugins.android.generation2</groupId>  
53.                 <artifactId>android-maven-plugin</artifactId>  
54.                 <version>3.9.0-rc.3</version>  
55.                 <configuration>  
56.                     <sdk>  
57.                         <platform>${android.platform}</platform>  
58.                     </sdk>  
59.                     <undeployBeforeDeploy>true</undeployBeforeDeploy>  
60.                 </configuration>  
61.                 <extensions>true</extensions>  
62.             </plugin>  
63.         </plugins>  
64.     </build>  
65.   
66. </project>  

android-annotations使用入门

原文：http://blog.csdn.net/goldenfish1919/article/details/41577317