【第二篇】学习 android 事件总线androidEventbus之异步事件的传递

package com.example.mysimpleeventbus;

import org.simple.eventbus.EventBus;
import org.simple.eventbus.Subscriber;
import org.simple.eventbus.ThreadMode;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends ActionBarActivity implements OnClickListener {

    private Button button;
    private Button ansyBtn;
    private Button ansy1Btn;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
        // 1 首先注册事件总线
        EventBus.getDefault().register(this);
    }

    private void initView() {
        button = (Button) findViewById(R.id.button);
        ansyBtn = (Button) findViewById(R.id.ansyBtn);
        ansy1Btn = (Button) findViewById(R.id.ansy1Btn);

        button.setOnClickListener(this);
        ansyBtn.setOnClickListener(this);
        ansy1Btn.setOnClickListener(this);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        EventBus.getDefault().unregister(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()) {
        case R.id.button:

            postSticky();

            break;

        case R.id.ansyBtn:

            postAnsy();

            break;
        case R.id.ansy1Btn:
            
            postAnsyInMainActivity();
            
            break;
        default:
            break;
        }
    }

    /**
     * Ansy事件传递，多个Activity之间必须postSticky
     */
    private void postAnsy() {
        // 将目标函数执行在异步线程中
        EventBus.getDefault().postSticky(new User("soyoungboy", "西安财经学院"),
                "ansy");
        gotoOtherActivity();
    }

    /**
     * 在本Activity中进行Ansy事件发布操作
     */
    private void postAnsyInMainActivity() {
        EventBus.getDefault().post(new User("soyoungboy", "西安财经学院"), "ansy");
    }

    /**
     * 在本Activity中进行Ansy事件接受操作
     * 
     * @param user
     */
    @Subscriber(tag = "ansy", mode = ThreadMode.ASYNC)
    private void ansy(User user) {
        Log.i("user", user.toString());
        Log.i("ThreadName", Thread.currentThread().getName());
    }

    private void postSticky() {
        // 2 发送Sticky事件
        EventBus.getDefault().postSticky(new User("soyoungboy", "西安财经学院"),
                "soyoungboy");

        gotoOtherActivity();
    }

    private void gotoOtherActivity() {
        // 跳转页面
        Intent intent = new Intent(MainActivity.this, OtherActivity.class);
        startActivity(intent);
    }
}

 1 package com.example.mysimpleeventbus;
 2 
 3 import org.simple.eventbus.EventBus;
 4 import org.simple.eventbus.Subscriber;
 5 import org.simple.eventbus.ThreadMode;
 6 
 7 import android.app.Activity;
 8 import android.os.Bundle;
 9 import android.util.Log;
10 import android.widget.Toast;
11 
12 public class OtherActivity extends Activity {
13     @Override
14     protected void onCreate(Bundle savedInstanceState) {
15         // TODO Auto-generated method stub
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.activity_main);
18         // 注意此处的registerSticky而不是register
19         EventBus.getDefault().registerSticky(this);
20     }
21 
22     // 此处获取发送事件的内容
23     @Subscriber(tag = "soyoungboy")
24     void showToast(User user) {
25         Toast.makeText(OtherActivity.this, user.toString(), Toast.LENGTH_LONG)
26                 .show();
27     }
28 
29     // 获取Ansy异步事件的内容
30     @Subscriber(tag = "ansy",mode = ThreadMode.ASYNC)
31     private void ansy(User user) {
32         Log.i("user", user.toString());
33         Log.i("ThreadName", Thread.currentThread().getName());
34         //删除事件，否则会出现重复的响应事件
35         EventBus.getDefault().removeStickyEvent(user.getClass(), "ansy");
36     }
37 
38     @Override
39     protected void onDestroy() {
40         super.onDestroy();
41         // 同样需要unregister
42         EventBus.getDefault().unregister(this);
43     }
44 }