1.修改RedAnt Mobile，增加Quick Look文档查看。

RedAnt Mobile/RedAnt Mobile/ResultViewController.m

@@ -13,10 +13,14 @@
 #import "RAUtils.h"
 #import "JLRefreshHeader.h"
 #import "JLRefreshFooter.h"
+#import <QuickLook/QuickLook.h>
 
 static const int delta = 25;
 
-@interface ResultViewController () <JLRefreshDelegate>
+@interface ResultViewController () <JLRefreshDelegate,QLPreviewControllerDataSource,QLPreviewControllerDelegate>
+
+@property (nonatomic,strong) QLPreviewController *quickLook;
+@property (nonatomic,copy) NSString *documentPath;
 
 @property (nonatomic,assign) NSInteger offset;
 @property (nonatomic,strong) NSDictionary *params;
@@ -398,6 +402,21 @@ static const int delta = 25;
 
 - (void)downloadItemClick:(UIBarButtonItem *)sender {
     
+    __weak typeof(self) weakSelf = self;
+    dispatch_async(dispatch_get_global_queue(0, 0), ^{
+       
+        NSMutableDictionary *params = self.params.mutableCopy;
+        NSString *path = [RANetwork download_query:params];
+        weakSelf.documentPath = path;
+        
+        if (path) {
+            dispatch_async(dispatch_get_main_queue(), ^{
+                [weakSelf.navigationController pushViewController:weakSelf.quickLook animated:YES];
+            });
+        }
+        
+    });
+    
 }
 
 - (NSInteger)resultItemCount {
@@ -527,4 +546,40 @@ static const int delta = 25;
     }];
 }
 
+#pragma mark - Quick Look
+
+- (QLPreviewController *)quickLook {
+    if (!_quickLook) {
+        _quickLook = [[QLPreviewController alloc] init];
+        _quickLook.delegate = self;
+        _quickLook.dataSource = self;
+    }
+    return _quickLook;
+}
+
+#pragma mark - QuickLook Data Source
+
+- (NSInteger)numberOfPreviewItemsInPreviewController:(QLPreviewController *)controller {
+    return 1;
+}
+
+- (id <QLPreviewItem>) previewController:(QLPreviewController *)controller previewItemAtIndex:(NSInteger)index {
+    
+    return [NSURL fileURLWithPath:self.documentPath];
+}
+
+#pragma mark - QuickLook Delegate
+
+- (void) previewControllerDidDismiss:(QLPreviewController *)controller {
+    
+}
+
+/**
+ * 文件内部链接点击不进行外部跳转
+ */
+- (BOOL) previewController:(QLPreviewController *)controller shouldOpenURL:(NSURL *)url forPreviewItem:(id<QLPreviewItem>)item {
+    return NO;
+}
+
+
 @end