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package com.doumee.lib_coremodel.http.utils;
 
import android.content.Context;
 
import androidx.fragment.app.Fragment;
 
import com.trello.rxlifecycle2.LifecycleProvider;
import com.trello.rxlifecycle2.LifecycleTransformer;
 
import io.reactivex.Observable;
import io.reactivex.ObservableSource;
import io.reactivex.ObservableTransformer;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.annotations.NonNull;
import io.reactivex.schedulers.Schedulers;
 
/**
 * Created by goldze on 2017/6/19.
 * 有关Rx的工具类
 */
public class RxUtils {
    /**
     * 生命周期绑定
     *
     * @param lifecycle Activity
     */
    public static <T> LifecycleTransformer<T> bindToLifecycle(@NonNull Context lifecycle) {
        if (lifecycle instanceof LifecycleProvider) {
            return ((LifecycleProvider) lifecycle).bindToLifecycle();
        } else {
            throw new IllegalArgumentException("context not the LifecycleProvider type");
        }
    }
 
    /**
     * 生命周期绑定
     *
     * @param lifecycle Fragment
     */
    public static LifecycleTransformer bindToLifecycle(@NonNull Fragment lifecycle) {
        if (lifecycle instanceof LifecycleProvider) {
            return ((LifecycleProvider) lifecycle).bindToLifecycle();
        } else {
            throw new IllegalArgumentException("fragment not the LifecycleProvider type");
        }
    }
 
    /**
     * 生命周期绑定
     *
     * @param lifecycle Fragment
     */
    public static LifecycleTransformer bindToLifecycle(@NonNull LifecycleProvider lifecycle) {
        return lifecycle.bindToLifecycle();
    }
 
    /**
     * 线程调度器
     */
    public static ObservableTransformer schedulersTransformer() {
        return new ObservableTransformer() {
            @Override
            public ObservableSource apply(Observable upstream) {
                return upstream.subscribeOn(Schedulers.io())
                        .observeOn(AndroidSchedulers.mainThread());
            }
        };
    }
 
}