Event 2.4 跳转接收消息

依赖: (导Event 的 jar包)

compile files('libs/EventBus2.4.jar')

无网络请求

MessageEvent

public class MessageEvent {//类的用途  事件类 用于封装消息

    private  String msg;

    public MessageEvent(String msg) {
        this.msg = msg;
    }

    public String getMsg() {
        return msg;
    }

    public void setMsg(String msg) {
        this.msg = msg;
    }
}

MainActivity

/**
 * 订阅消息的页面
 */
public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        //注册EventBus  单例设计模式
        EventBus.getDefault().register(this);

        findViewById(R.id.bt_jump).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(new Intent(MainActivity.this,Main2Activity.class));
            }
        });
    }
    /* public void onEvent(MessageEvent event){
            Toast.makeText(this, "我接收到了EventBus发送过来的消息", Toast.LENGTH_SHORT).show();
        }*/
    public  void onEventMainThread(MessageEvent event){
        Toast.makeText(this, "我接收到了EventBus发送过来的消息", Toast.LENGTH_SHORT).show();

    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        //页面销毁的地方注销掉EventBus
        EventBus.getDefault().unregister(this);
    }
}

xml:

Main2Activity:

xml2: