Rxlifecycle(一):使用
Rxlifecycle使用非常方便简单,如下:
1.集成
build.gradle添加
//Rxlifecycle
compile 'com.trello:rxlifecycle:0.3.1'
compile 'com.trello:rxlifecycle-components:0.3.1'
//Rxjava
compile 'io.reactivex:rxjava:1.0.16'
Components包中包含RxActivity、RxFragment等等,可以用Rxlifecycle提供的,也可以自定义。
2.Sample解析
官方sample源码: 两种使用方法:
1.手动设置取消订阅的时机,例子1、例子3
2.绑定生命周期,自动取消订阅,例子2
public class MainActivity extends RxAppCompatActivity {
//Note:Activity需要继承RxAppCompatActivity,fragment需要继承RxFragment,等等
//可以使用的组件在components包下面
private static final String TAG = "RxLifecycle";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(TAG, "onCreate()");
setContentView(R.layout.activity_main);
// Specifically bind this until onPause()
//Note:例子1:
Observable.interval(1, TimeUnit.SECONDS)
.doOnUnsubscribe(new Action0() {
@Override
public void call() {
Log.i(TAG, "Unsubscribing subscription from onCreate()");
}
})
//Note:手动设置在activity onPause的时候取消订阅
.compose(this.<Long>bindUntilEvent(ActivityEvent.PAUSE))
.subscribe(new Action1<Long>() {
@Override
public void call(Long num) {
Log.i(TAG, "Started in onCreate(), running until onPause(): " + num);
}
});
}
@Override
protected void onStart() {
super.onStart();
Log.d(TAG, "onStart()");
//Note:例子2:
// Using automatic unsubscription, this should determine that the correct time to
// unsubscribe is onStop (the opposite of onStart).
Observable.interval(1, TimeUnit.SECONDS)
.doOnUnsubscribe(new Action0() {
@Override
public void call() {
Log.i(TAG, "Unsubscribing subscription from onStart()");
}
})
//Note:bindToLifecycle的自动取消订阅示例,因为是在onStart的时候调用,所以在onStop的时候自动取消订阅
.compose(this.<Long>bindToLifecycle())
.subscribe(new Action1<Long>() {
@Override
public void call(Long num) {
Log.i(TAG, "Started in onStart(), running until in onStop(): " + num);
}
});
}
@Override
protected void onResume() {
super.onResume();
Log.d(TAG, "onResume()");
//Note:例子3:
// `this.<Long>` is necessary if you're compiling on JDK7 or below.
// If you're using JDK8+, then you can safely remove it.
Observable.interval(1, TimeUnit.SECONDS)
.doOnUnsubscribe(new Action0() {
@Override
public void call() {
Log.i(TAG, "Unsubscribing subscription from onResume()");
}
})
//Note:手动设置在activity onDestroy的时候取消订阅
.compose(this.<Long>bindUntilEvent(ActivityEvent.DESTROY))
.subscribe(new Action1<Long>() {
@Override
public void call(Long num) {
Log.i(TAG, "Started in onResume(), running until in onDestroy(): " + num);
}
});
}
...
作者: 一点点征服
出处:http://www.cnblogs.com/ldq2016/
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