依赖注入框架之androidannotations

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主页: http://androidannotations.org/

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用途:
1. 使用依赖注入Views,extras,System Service,resources
2. 简化线程模型
3. 事件绑定
4. REST Client

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配置:
1. 在**project/build.gradle**文件中按下图所示添加代码:

mavenCentral()
classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
mavenCentral()
mavenLocal()

2. 在**app/build.gradle**文件中按下图所示添加代码:

apply plugin: 'android-apt'
apt {
arguments {
androidManifestFile variant.outputs[0]?.processResources?.manifestFile
}
}

apt "org.androidannotations:androidannotations:4.0.0"
compile "org.androidannotations:androidannotations-api:4.0.0"

* 注意事项:
* Manifest中注册的activity要在原类名后追加下划线”_”
* 使用注解的控件和方法不能使用private修饰符
* 大型项目并不适用

 示例代码:

注意导包导入的是:

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import org.androidannotations.annotations...... @Fullscreen    //全屏 @WindowFeature(Window.FEATURE_NO_TITLE) //Activity没有标题 @EActivity(R.layout.my_activity)      //布局文件在这里声明，不用在setContentView public class MyActivity extends Activity {       @ViewById //初始化控件，不需要自己实例化             EditText myEditText;       @ViewById(R.id.myTextView) //提供id来生成控件，如果不指定ID，默认以控件名进行查找，如上面的myEditText             TextView textView;       @StringRes(R.string.app_name)  //字符串资源             String appName;       @ColorRes(R.color.colorAccent) //颜色资源             int androidColor;       @BooleanRes     boolean someBoolean;       @SystemService //系统服务             NotificationManager notificationManager;       @Click //事件控制，可以以按钮的id作为方法名,同时支持的事件还有onLongClick，onTextChange等     void myButtonClicked() {         String name = myEditText.getText().toString();         setProgressBarIndeterminateVisibility(true);         someBackgroundWork(name, 5);     }       @ViewById(R.id.textView)     TextView tv;       @Click(R.id.button)     void submit() {         tv.setText(appName);         someBackgroundWork();     }       @Background//开启新线程后台运行，注意不要引用UI控件,而且返回值类型一定是void     void someBackgroundWork() {         try {             Thread.sleep(2000);         } catch (InterruptedException e) {}           updateUi(appName, androidColor);     }       @UiThread//UI线程     void updateUi(String message, int color) {         tv.setText(message);         tv.setTextColor(color);     }       @LongClick     void startExtraActivity() {         Intent intent = new Intent(this, ActivityWithExtra_.class);           intent.putExtra(ActivityWithExtra.MY_DATE_EXTRA, new Date());         intent.putExtra(ActivityWithExtra.MY_STRING_EXTRA, "hello !");         intent.putExtra(ActivityWithExtra.MY_INT_EXTRA, 42);           startActivity(intent);     }       @Touch     void myTextView(MotionEvent event) {         Log.d("MyActivity", "myTextView was touched!");     } }