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Fix potential problem when IOS documentController is not executed from main thread #168

Ben Hsieh 8 years ago
parent
commit
762c46e79a
1 changed files with 6 additions and 2 deletions
  1. 6
    2
      src/ios/RNFetchBlob/RNFetchBlob.m

+ 6
- 2
src/ios/RNFetchBlob/RNFetchBlob.m View File

@@ -446,7 +446,9 @@ RCT_EXPORT_METHOD(previewDocument:(NSString*)uri scheme:(NSString *)scheme resol
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     UIViewController *rootCtrl = [[[[UIApplication sharedApplication] delegate] window] rootViewController];
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     documentController.delegate = self;
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     if(scheme == nil || [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:scheme]]) {
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-        [documentController  presentOptionsMenuFromRect:rootCtrl.view.bounds inView:rootCtrl.view animated:YES];
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+        dispatch_sync(dispatch_get_main_queue(), ^{
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+            [documentController  presentOptionsMenuFromRect:rootCtrl.view.bounds inView:rootCtrl.view animated:YES];
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+        });
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         resolve(@[[NSNull null]]);
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     } else {
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         reject(@"RNFetchBlob could not open document", @"scheme is not supported", nil);
@@ -463,7 +465,9 @@ RCT_EXPORT_METHOD(openDocument:(NSString*)uri scheme:(NSString *)scheme resolver
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     documentController.delegate = self;
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     if(scheme == nil || [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:scheme]]) {
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-        [documentController presentPreviewAnimated:YES];
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+        dispatch_sync(dispatch_get_main_queue(), ^{
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+            [documentController presentPreviewAnimated:YES];
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+        });
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         resolve(@[[NSNull null]]);
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     } else {
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         reject(@"RNFetchBlob could not open document", @"scheme is not supported", nil);