Rxjava处理内存泄漏问题

Rxjava处理内存泄漏问题

1.新建一个Lifecycle类继承LifecycleObserver,ObservableTransformer

/**
 * 内存泄漏处理
 * @param <T>
 */
public class MemoryLeakRxLifecycle<T> implements LifecycleObserver,ObservableTransformer<T, T> {
​
    final CompositeDisposable compositeDisposable=new CompositeDisposable();
​
    @NotNull
    @Override
    public ObservableSource<T> apply(@NotNull Observable<T> upstream) {
        return upstream.doOnSubscribe(disposable ->compositeDisposable.add(disposable));
    }
​
    @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
    void onDestroy(){
        if(!compositeDisposable.isDisposed())
            compositeDisposable.dispose();
    }
​
    public static <T> MemoryLeakRxLifecycle<T> bindRxLifecycle(LifecycleOwner lifecycleOwner){
        MemoryLeakRxLifecycle<T> memoryLeakRxLifecycle=new MemoryLeakRxLifecycle<>();
        lifecycleOwner.getLifecycle().addObserver(memoryLeakRxLifecycle);
        return memoryLeakRxLifecycle;
​
    }
}

2.配合compose()

Observable.create(...)
    .compose(MemoryLeakRxLifecycle.bindRxLifecycle(this))...