前言
RxBinding 是 Jake Wharton 的一個(gè)開(kāi)源庫(kù)沿后，它提供了一套在 Android 平臺(tái)上的基于 RxJava的 Binding API。所謂 Binding朽砰，就是類(lèi)似設(shè)置 OnClickListener 尖滚、設(shè)置 TextWatcher 這樣的注冊(cè)綁定對(duì)象的 API。
1.AndroidStudio 使用
一般包下面就用
compile 'com.jakewharton.rxbinding:rxbinding:2.0.0'
v4'support-v4' library bindings:
compile 'com.jakewharton.rxbinding:rxbinding-support-v4:2.0.0'
'appcompat-v7' library bindings:
compile 'com.jakewharton.rxbinding:rxbinding-appcompat-v7:2.0.0'
'design' library bindings:
compile 'com.jakewharton.rxbinding:rxbinding-design:2.0.0'
'recyclerview-v7' library bindings:
compile compile 'com.jakewharton.rxbinding2:rxbinding-recyclerview-v7:2.0.0'
'leanback-v17' library bindings:
compile 'com.jakewharton.rxbinding2:rxbinding-leanback-v17:2.0.0'
2.github
https://github.com/JakeWharton/RxBinding
3.代碼示例
- Button 防抖處理
button = (Button) findViewById( R.id.bt );
RxView.clicks( button )
.throttleFirst( 2 , TimeUnit.SECONDS ) //兩秒鐘之內(nèi)只取一個(gè)0點(diǎn)擊事件瞧柔，防抖操作
.subscribe(new Action1<Void>() {
@Override
public void call(Void aVoid) {
Toast.makeText(MainActivity.this, "點(diǎn)擊了", Toast.LENGTH_SHORT).show();
}
}) ;
- 按鈕的長(zhǎng)按時(shí)間監(jiān)聽(tīng)
button = (Button) findViewById( R.id.bt ) ;
//監(jiān)聽(tīng)長(zhǎng)按時(shí)間
RxView.longClicks( button)
.subscribe(new Action1<Void>() {
@Override
public void call(Void aVoid) {
Toast.makeText(MainActivity.this, "long click Ｆ崤！", Toast.LENGTH_SHORT).show();
}
}) ;
- listView 的點(diǎn)擊事件造锅、長(zhǎng)按事件處理
listView = (ListView) findViewById( R.id.listview );
List<String> list = new ArrayList<>() ;
for ( int i = 0 ; i < 40 ; i++ ){
list.add( "sss" + i ) ;
}
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1 );
adapter.addAll( list );
listView.setAdapter( adapter );
//item click event
RxAdapterView.itemClicks( listView )
.subscribe(new Action1<Integer>() {
@Override
public void call(Integer integer) {
Toast.makeText(ListActivity.this, "item click " + integer , Toast.LENGTH_SHORT).show();
}
}) ;
//item long click
RxAdapterView.itemLongClicks( listView)
.subscribe(new Action1<Integer>() {
@Override
public void call(Integer integer) {
Toast.makeText(ListActivity.this, "item long click " + integer , Toast.LENGTH_SHORT).show();
}
}) ;
- 用戶(hù)登錄界面撼唾，勾選同意隱私協(xié)議，登錄按鈕就變高亮
button = (Button) findViewById( R.id.login_bt );
checkBox = (CheckBox) findViewById( R.id.checkbox );
RxCompoundButton.checkedChanges( checkBox )
.subscribe(new Action1<Boolean>() {
@Override
public void call(Boolean aBoolean) {
button.setEnabled( aBoolean );
button.setBackgroundResource( aBoolean ? R.color.button_yes : R.color.button_no );
}
}) ;
- 搜索的時(shí)候哥蔚，關(guān)鍵詞聯(lián)想功能 倒谷。debounce()在一定的時(shí)間內(nèi)沒(méi)有操作就會(huì)發(fā)送事件。
editText = (EditText) findViewById( R.id.editText );
listView = (ListView) findViewById( R.id.listview );
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1 );
listView.setAdapter( adapter );
RxTextView.textChanges( editText )
.debounce( 600 , TimeUnit.MILLISECONDS )
.map(new Func1<CharSequence, String>() {
@Override
public String call(CharSequence charSequence) {
//get the keyword
String key = charSequence.toString() ;
return key ;
}
})
.observeOn( Schedulers.io() )
.map(new Func1<String, List<String>>() {
@Override
public List<String> call(String keyWord ) {
//get list
List<String> dataList = new ArrayList<String>() ;
if ( ! TextUtils.isEmpty( keyWord )){
for ( String s : getData() ) {
if (s != null) {
if (s.contains(keyWord)) {
dataList.add(s);
}
}
}
}
return dataList ;
}
})
.observeOn( AndroidSchedulers.mainThread() )
.subscribe(new Action1<List<String>>() {
@Override
public void call(List<String> strings) {
adapter.clear();
adapter.addAll( strings );
adapter.notifyDataSetChanged();
}
}) ;
4.總結(jié)
-
RxBinding就是把發(fā)布--訂閱的模式用在了android控件的點(diǎn)擊肺素，文本變化上恨锚。通過(guò) RxBinding 把點(diǎn)擊監(jiān)聽(tīng)轉(zhuǎn)換成 Observable 之后，就有了對(duì)它進(jìn)行擴(kuò)展的可能倍靡。 -
RxBinding和rxlifecycle結(jié)合起來(lái)使用猴伶，可以控制控件監(jiān)聽(tīng)的生命周期。
轉(zhuǎn)載自趙彥軍的博客https://www.cnblogs.com/zhaoyanjun/p/5535651.html
