视频预加载

app/src/main/java/com/gh/download/cache/CacheObserver.java

@@ -0,0 +1,32 @@
+package com.gh.download.cache;
+
+import com.lightgame.utils.Utils;
+
+import io.reactivex.Observer;
+import io.reactivex.disposables.Disposable;
+
+public abstract class CacheObserver implements Observer<CacheInfo> {
+    protected Disposable d;//可以用于取消注册的监听者
+    protected CacheInfo cacheInfo;
+
+    @Override
+    public void onSubscribe(Disposable d) {
+        this.d = d;
+    }
+
+    @Override
+    public void onNext(CacheInfo cacheInfo) {
+        this.cacheInfo = cacheInfo;
+        Utils.log(cacheInfo.getProgress() + "-" + cacheInfo.getTotal());
+    }
+
+    @Override
+    public void onError(Throwable e) {
+        e.printStackTrace();
+    }
+
+    @Override
+    public void onComplete() {
+
+    }
+}