RxBinding结合RxJava的操作符和一些应用场景

RxBinding的使用场景

1.防止按钮重复点击,在1秒内只能响应点击一次

 RxView.clicks(btn_test1)
                .throttleFirst(1, TimeUnit.SECONDS)
                .subscribeOn(AndroidSchedulers.mainThread())
                .subscribe(new Action1() {

                    @Override
                    public void call(Void aVoid) {
                        Log.e(TAG,"被点击一次-->,时间是:"+System.currentTimeMillis());
                    }
                });

2.Buffer操作符,可以用来计算连续点击次数,使用share操作符(官方对share操作符的定义:返回一个新的Observable ，该Observable会广播给所有之前的。)

  Observable clicks = RxView.clicks(btn_test2).share();
        clicks.buffer(clicks.debounce(300,TimeUnit.MILLISECONDS))
                .map(new Func1, Integer>() {
                    @Override
                    public Integer call(List voids) {
                        return voids.size();
                    }
                })
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Action1() {
                    @Override
                    public void call(Integer integer) {
                        btn_test2.setText(""+integer+"连击");
                    }
                });

3.获取验证码,并倒计时

rxbinding24.gif

 Observable voidObservable = RxView.clicks(btn_test3).throttleFirst(5, TimeUnit.SECONDS)
                .observeOn(AndroidSchedulers.mainThread())
                .doOnNext(new Action1() {
                    @Override
                    public void call(Void aVoid) {
                        RxView.enabled(btn_test3).call(false);
                    }
                });
        voidObservable.subscribe(new Action1() {
            @Override
            public void call(Void aVoid) {
                Observable.interval(1, TimeUnit.SECONDS)
                        .observeOn(AndroidSchedulers.mainThread())
                        .take(5)
                        .subscribe(new Observer() {
                            @Override
                            public void onCompleted() {
                                RxTextView.text(btn_test3).call("获取验证码");
                                RxView.enabled(btn_test3).call(true);
                            }

                            @Override
                            public void onError(Throwable e) {

                            }

                            @Override
                            public void onNext(Long aLong) {
                                RxTextView.text(btn_test3).call("剩余" + (5 - aLong) + "秒");
                            }
                        });
            }
        });

4.监听EditText和CheckBox,全部勾选才点亮登录按钮

rxbindingtest1.gif

  EditText et_user = (EditText) findViewById(R.id.et_user);
        EditText et_password = (EditText) findViewById(R.id.et_password);
        CheckBox cb_user = (CheckBox) findViewById(R.id.cb_user);

        Observable userName = RxTextView.textChanges(et_user);
        Observable passWord = RxTextView.textChanges(et_password);
        Observable checkBox = RxCompoundButton.checkedChanges(cb_user);

        Observable.combineLatest(userName, passWord, checkBox, new Func3() {
            @Override
            public Boolean call(CharSequence charSequence, CharSequence charSequence2, Boolean aBoolean) {
                return charSequence.length()>0 && charSequence2.length()>0 && aBoolean;
            }
        }).subscribe(new Action1() {
            @Override
            public void call(Boolean aBoolean) {
                RxView.enabled(btn_test4).call(aBoolean);
                RxView.clicks(btn_test4).subscribe(new Action1() {
                    @Override
                    public void call(Void aVoid) {
                        Toast.makeText(MainActivity.this,"登录中...",Toast.LENGTH_SHORT).show();
                    }
                });
            }
        });