EventBus线程问题

 DEMO1:

public class EventBusMessage {    private int what;    private int arg1;    private int arg2;    public EventBusMessage() {    }    public int getArg1() {        return arg1;    }    public void setArg1(int arg1) {        this.arg1 = arg1;    }    public int getArg2() {        return arg2;    }    public void setArg2(int arg2) {        this.arg2 = arg2;    }    public int getWhat() {        return what;    }    public void setWhat(int what) {        this.what = what;    }    public EventBusMessage(int arg1, int arg2, int what) {        this.arg1 = arg1;        this.arg2 = arg2;        this.what = what;    }}

/** * 1.加载依赖库 * 2.发送消息 * 3.订阅消息 */public class MainActivity extends AppCompatActivity {    private TextView tv;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        EventBus.getDefault().register(this);        tv = ((TextView) findViewById(R.id.tv));    }    public void btnClick(View view) {        //使用EventBus发送一条消息//        new Thread(new Runnable() {//            @Override//            public void run() {
            EventBusMessage event = new EventBusMessage();        event.setWhat(10);        EventBus.getDefault().post(event);        Log.d("google_lenve_fb", "btnClick: " + Thread.currentThread().getName());//            }//        }).start();    }    //订阅消息    @Subscribe(threadMode = ThreadMode.BACKGROUND)    public void changeTextViewText(EventBusMessage msg) {        Log.d("google_lenve_fb", "changeTextViewText: " + Thread.currentThread().getName());//        tv.setText(str);        Toast.makeText(MainActivity.this, "123456:" + msg.getWhat(), Toast.LENGTH_SHORT).show();    }    @Override    protected void onDestroy() {        super.onDestroy();        EventBus.getDefault().unregister(this);    }}

 

DEMO2:

效果图：

public class LeftFragment extends Fragment {    private List
     
       list;    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.left_fg_layout, null);        ListView listView = (ListView) view.findViewById(R.id.lv);        initData();        ArrayAdapter
      
        adapter = new ArrayAdapter
       
        (getActivity(), android.R.layout.simple_list_item_1, list);        listView.setAdapter(adapter);        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView
         parent, View view, int position, long id) {                EventBus.getDefault().post(list.get(position));            }        });        return view;    }    private void initData() {        list = new ArrayList<>();        list.add("day1.txt");        list.add("day2.txt");        list.add("day3.txt");        list.add("day4.txt");    }}
       
      
     

public class RightFragment extends Fragment {    private TextView tv;    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        View view = inflater.inflate(R.layout.right_fg_layout, null);        tv = ((TextView) view.findViewById(R.id.content));        EventBus.getDefault().register(this);        return view;    }    @Subscribe    public void changeText(String fileName) {        InputStream is = null;        StringBuffer result = new StringBuffer();        try {            is = getActivity().getAssets().open(fileName);            int len = 0;            byte[] buf = new byte[1024];            while ((len = is.read(buf)) != -1) {                result.append(new String(buf, 0, len));            }            tv.setText(result.toString());        } catch (IOException e) {            e.printStackTrace();        }finally {            if (is != null) {                try {                    is.close();                } catch (IOException e) {                    e.printStackTrace();                }            }        }    }    @Override    public void onDestroy() {        super.onDestroy();        EventBus.getDefault().unregister(this);    }}