Android- Handler封装工具类_android handler封装

自定义封装Handle异步发送、接收消息工具类，使用仅需两行代码

public class BaseHandleMessage {
    private final ArrayList<Handler> mUpdateHandlers;
    private static BaseHandleMessage mInstance;
    public ArrayList<Handler> getmUpdateHandler() {
        return mUpdateHandlers;
    }
    private BaseHandleMessage() {
        mInstance = this;
        mUpdateHandlers = new ArrayList<>();
    }
    public synchronized static BaseHandleMessage getInstance() {
        if (mInstance == null)
            mInstance = new BaseHandleMessage();
        return mInstance;
    }
    public void addBaseHandleMessage(Handler handler) {
        if (handler != null) {
            mUpdateHandlers.add(handler);
        }
    }
    public void removeBaseHandleMessage(Handler handler) {
        if (handler != null) {
            mUpdateHandlers.remove(handler);
        }
    }
    public void setHandlerMessage(int what, Object objsect) {
        for (int i = 0; i < mUpdateHandlers.size(); i++) {
            Handler handler = mUpdateHandlers.get(i);
            Message msg = Message.obtain();
            msg.obj = objsect;
            msg.what = what;
            handler.sendMessage(msg);
        }
    }
    public void sendMessageDelayed(int what, Object objsect, long delayMillis) {
        for (int i = 0; i < mUpdateHandlers.size(); i++) {
            Handler handler = mUpdateHandlers.get(i);
            Message msg = Message.obtain();
            msg.obj = objsect;
            msg.what = what;
            handler.sendMessageDelayed(msg, delayMillis);
        }
    }
}

//发送Handler--->
BaseHandleMessage.getInstance().setHandlerMessage(int what, Object objsect);

 
//接收Handler--->
Handler handler = new Handler(message -> {
    if (message.what == WHAT) {
        //doing something()
    }
    return false;
});
BaseHandleMessage.getInstance().addBaseHandleMessage(handler);