下载文件大小检测

mobile/src/main/java/cn/garymb/ygomobile/ui/cards/CardDetail.java

@@ -5,6 +5,7 @@ import android.content.Intent;
 import android.os.Handler;
 import android.os.Message;
 import android.text.TextUtils;
+import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.Window;
@@ -471,6 +472,7 @@ public class CardDetail extends BaseAdapterPlus.BaseViewHolder {
 
             @Override
             public void onDownloadFailed(Exception e) {
+                Log.w(IrrlichtBridge.TAG, "download image error:" + e.getMessage());
                 //下载失败后删除下载的文件
                 FileUtils.deleteFile(tmp);
 //                downloadCardImage(code, file);

mobile/src/main/java/cn/garymb/ygomobile/utils/DownloadUtil.java

@@ -44,11 +44,11 @@ public class DownloadUtil {
      */
 
     public void download(final String url, final String destFileDir, final String destFileName, final OnDownloadListener listener) {
-    	if(ENABLE_CACHE){
-    		synchronized (cache){
+        if (ENABLE_CACHE) {
+            synchronized (cache) {
                 Call old = cache.get(url);
-				if(old != null){
-					Log.w(IrrlichtBridge.TAG, "exist download task by:" +url);
+                if (old != null) {
+                    Log.w(IrrlichtBridge.TAG, "exist download task by:" + url);
                     return;
                 }
             }
@@ -72,8 +72,8 @@ public class DownloadUtil {
             public void onFailure(Call call, IOException e) {
                 // 下载失败监听回调
                 listener.onDownloadFailed(e);
-					if(ENABLE_CACHE){
-						synchronized (cache){
+                if (ENABLE_CACHE) {
+                    synchronized (cache) {
                         cache.remove(url);
                     }
                 }
@@ -81,10 +81,16 @@ public class DownloadUtil {
 
             @Override
             public void onResponse(Call call, Response response) throws IOException {
+                if(!response.isSuccessful()){
+                    listener.onDownloadFailed(new Exception("error:"+response.code()));
+                    return;
+                }
+                String contentLen = response.header("Content-Length");
+                final long contentLength = (contentLen == null || contentLen.length() == 0) ? 0 : Long.parseLong(contentLen);
                 InputStream is = null;
                 byte[] buf = new byte[2048];
                 int len = 0;
-					FileOutputStream fos = null;
+                FileOutputStream out = null;
 
                 //储存下载文件的目录
                 File dir = new File(destFileDir);
@@ -92,31 +98,36 @@ public class DownloadUtil {
                     dir.mkdirs();
                 }
                 File file = new File(dir, destFileName);
-
+                boolean saved = false;
                 try {
-
                     is = response.body().byteStream();
                     long total = response.body().contentLength();
-						fos = new FileOutputStream(file);
+                    out = new FileOutputStream(file);
                     long sum = 0;
                     while ((len = is.read(buf)) != -1) {
-							fos.write(buf, 0, len);
+                        out.write(buf, 0, len);
                         sum += len;
                         int progress = (int) (sum * 1.0f / total * 100);
                         //下载中更新进度条
                         listener.onDownloading(progress);
                     }
-						fos.flush();
-						//下载完成
-						listener.onDownloadSuccess(file);
+                    out.flush();
+                    saved = true;
                 } catch (Exception ex) {
                     listener.onDownloadFailed(ex);
-					}finally {
+                } finally {
+                    IOUtils.close(out);
                     IOUtils.close(is);
-						IOUtils.close(fos);
                 }
-					if(ENABLE_CACHE){
-						synchronized (cache){
+                if (saved) {
+					if (contentLength > 0 && file.length() < contentLength) {
+						listener.onDownloadFailed(new Exception("file length[" + file.length() + "] < " + contentLen));
+					} else {
+						listener.onDownloadSuccess(file);
+					}
+                }
+                if (ENABLE_CACHE) {
+                    synchronized (cache) {
                         cache.remove(url);
                     }
                 }
@@ -125,7 +136,7 @@ public class DownloadUtil {
     }
 
 
-    public static interface OnDownloadListener{
+    public static interface OnDownloadListener {
 
         /**
          * 下载成功之后的文件