代替繁琐的finViewById

@EActivitypublic class MyActivity extends Activity {  // Injects R.id.myEditText  @ViewById  EditText myEditText;  @ViewById(R.id.myTextView)  TextView textView;}

指定需要在视图加载完成后才能执行的方法@AfterViews

@EActivity(R.layout.main)public class MyActivity extends Activity {    @ViewById    TextView myTextView;    @AfterViews    void updateTextWithDate() {        myTextView.setText("Date: " + new Date());    }}

注意：不要在onCreate中写任何对view相关的方法

@Extra 用于传递的Intent

@EActivitypublic class MyActivity extends Activity {  @Extra("myStringExtra")  String myMessage;  @Extra("myDateExtra")  Date myDateExtraWithDefaultValue = new Date();   // The name of the extra will be "myMessage"  @Extra  String myMessage;}

onNewIntent能够根据Intent重新注入Extra

@EActivitypublic class MyActivity extends Activity {    @Extra("myStringExtra")    String myMessage;    @Override    protected void onNewIntent(Intent intent) {        setIntent(intent);    }}

 

@SystemService

no more Context.getSystemService()

@EActivitypublic class MyActivity extends Activity {  @SystemService  NotificationManager notificationManager;}

@SharedPref：

定义：

@SharedPrefpublic interface MyPrefs {        // The field name will have default value "John"    @DefaultString("John")    String name();        // The field age will have default value 42    @DefaultInt(42)    int age();        // The field lastUpdated will have default value 0    long lastUpdated();

@DefaultRes(R.string.defaultPrefName)    String resourceName();    @DefaultRes    String defaultPrefAge();

}

使用：

@EActivitypublic class MyActivity extends Activity {    @Pref    MyPrefs_ myPrefs;}// Simple editmyPrefs.name().put("John");// Batch editmyPrefs.edit()  .name()  .put("John")  .age()  .put(42)  .apply();// Preference clearing:myPrefs.clear();// Check if a value exists:boolean nameExists = myPrefs.name().exists();// Reading a valuelong lastUpdated = myPrefs.lastUpdated().get();// Reading a value and providing a fallback default valuelong now = System.currentTimeMillis();long lastUpdated = myPrefs.lastUpdated().getOr(now);