RxBinding使用指南

关于版本问题

如果是 java 代码想使用，那么选择 https://github.com/JakeWharton/RxBinding/tree/2.2.0

最新的 3.3.0 是 kotlin 实现的。

rxjava 引用

packagingOptions {
    //Use “exclude” to point at the specific file (or files) that Android Studio is complaining about//
    exclude 'META-INF/rxjava.properties'
}
implementation "io.reactivex.rxjava2:rxjava:2.2.12"
implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'

java引用

Platform bindings:

implementation 'com.jakewharton.rxbinding2:rxbinding:2.2.0'

Android library bindings:

implementation 'com.jakewharton.rxbinding2:rxbinding-support-v4:2.2.0'
implementation 'com.jakewharton.rxbinding2:rxbinding-appcompat-v7:2.2.0'
implementation 'com.jakewharton.rxbinding2:rxbinding-design:2.2.0'
implementation 'com.jakewharton.rxbinding2:rxbinding-recyclerview-v7:2.2.0'
implementation 'com.jakewharton.rxbinding2:rxbinding-leanback-v17:2.2.0'

kotlin引用

Platform bindings:

implementation 'com.jakewharton.rxbinding3:rxbinding:3.0.0'

AndroidX library bindings:

implementation 'com.jakewharton.rxbinding3:rxbinding-core:3.0.0'
implementation 'com.jakewharton.rxbinding3:rxbinding-appcompat:3.0.0'
implementation 'com.jakewharton.rxbinding3:rxbinding-drawerlayout:3.0.0'
implementation 'com.jakewharton.rxbinding3:rxbinding-leanback:3.0.0'
implementation 'com.jakewharton.rxbinding3:rxbinding-recyclerview:3.0.0'
implementation 'com.jakewharton.rxbinding3:rxbinding-slidingpanelayout:3.0.0'
implementation 'com.jakewharton.rxbinding3:rxbinding-swiperefreshlayout:3.0.0'
implementation 'com.jakewharton.rxbinding3:rxbinding-viewpager:3.0.0'

Google ‘material’ library bindings:

implementation 'com.jakewharton.rxbinding3:rxbinding-material:3.0.0'

使用

//复合中断器
private final CompositeDisposable mDisposable = new CompositeDisposable();

@Override
protected void onCreate(Bundle savedInstanceState) {
    ...code
    //把view 的加入到 复合中断器 中
    Button mButton = findViewById(R.id.mButton);
    mDisposable.add(RxView.clicks(mButton).debounce(500, TimeUnit.MILLISECONDS).subscribe(o -> Log.d("", "")));
}

@Override
protected void onDestroy() {
    super.onDestroy();
    mDisposable.clear();
}

使用场景

Button 防抖处理

mDisposable.add(RxView.clicks(mButton)
                .throttleFirst(2, TimeUnit.SECONDS) //两秒钟之内只取一个0点击事件，防抖操作
                .subscribe(o -> Toast.makeText(RxJavaActivity.this, "点击了", Toast.LENGTH_SHORT).show()));

按钮的长按事件

//监听长按事件
mDisposable.add(RxView.longClicks(mButton)
        .subscribe(o -> Log.e("", "")));

CheckBox事件

CheckBox checkBox = (CheckBox) findViewById(R.id.checkbox);
mDisposable.add(RxCompoundButton.checkedChanges(checkBox)
        .subscribe(isChecked -> {
        }));

搜索的时候，关键词联想功能 。debounce()在一定的时间内没有操作就会发送事件

mDisposable.add(RxTextView.textChanges(editText)
                //在 600 毫秒，没有操作的话，就执行事件
                .debounce(600, TimeUnit.MILLISECONDS)
                .map(o -> {
                    //获取 edit 的值
                    String key = editText.getText().toString();
                    return key;
                })
                .observeOn(Schedulers.io())
                .map(o -> {
                    //获取数据
                    List<String> dataList = new ArrayList<String>();
                    return dataList;
                })
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(o -> {
                    //adapter.clear();
                    //adapter.addAll(strings);
                    //adapter.notifyDataSetChanged();
                }));

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