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SDWebImageを1年半使ってみた
ninjinkun
April 09, 2014
Technology
25
13k
SDWebImageを1年半使ってみた
SDWebImageのTipsです
ninjinkun
April 09, 2014
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Transcript
4%8FC*NBHFΛ ͬͯΈͨ OJOKJOLVO
4%8FC*NBHF w 8FCը૾ϩʔμʔ w ը૾Ωϟογϡ w 6**NBHF֦ு w Ξχ(*' 8FC1
IUUQHJUIVCDPNSTTEXFCJNBHF
4%8FC*NBHF w ͜ͷ͘Β͍ͰଟͷϓϩδΣΫτʹೖͯ͠ ͳ͠ w ը૾ϑΣονϟʔͷܾఆ൛ͱݴ͑Δ w ྑ͘ϝϯς͞Ε͍ͯͯ։ൃ׆ൃ
4%*NBHF$BDIF w σϑΥϧτઃఆ͕͍͚ͯΔ w σΟεΫΩϟογϡͷσϑΥϧτ&YQJSFिؒ w ϝϞϦΩϟογϡͷσϑΥϧτ্ݶͳ͠ w .FNPSZ8BSOJOH࣌ʹϝϞϦΩϟογϡফ͑Δ w
σΟεΫΩϟογϡΞϓϦͷऴྃ࣌ͱόοΫάϥϯυҠ ߦ࣌ʹআ͞ΕΔ w ͜ͷลΓࣗલͰ࣮͢ΔͱۭؾಡΉͷ͕େม
(*'BOJNBUJPO 8FC1αϙʔτ w 6**NBHFΞχ(*' 8FC1ͷมؚ͕·Ε͍ͯΔ w 6**NBHFϑΥʔϚοτʹඇґଘ w 4%8FC*NBHFೖΕΔ͚ͩͰΞχ(*'͑Δ w
ը૾μϯϩʔμʔͷҬΛ͍͑ͯΔʜ w ͚Ͳ࣮͕ࣗવͳײ͡ͳͷͰจ۟ͳ͍
ը૾ΛϑΣʔυͯ͠ද͍ࣔͤͨ͞ w σϑΥϧτͰը૾͕ͺͬͱදࣔ͞ΕΔ͚ͩ w DPNQMFUFE#MPDLΛ͏ __weak UIImageView *weakImageView = imageView;
! [imageView setImageWithURL:imageURL placeholderImage:nil completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) { if (cacheType != SDImageCacheTypeMemory) { [UIView transitionWithView:weakImageView duration:0.28 options:UIViewAnimationOptionTransitionCrossDissolve | UIViewAnimationOptionCurveLinear | UIViewAnimationOptionAllowUserInteraction animations:nil completion:nil]; } }];
ಡΈࠐΈʹࣦഊͨ݁͠Ռ͕ Ωϟογϡ͞Εͯ͠·͏ w 4%8FC*NBHF3FUSZ'BJMFEΛࢦఆ͢Δ w 6*5BCMF7JFX$FMMͰҰؾʹը૾Λಡ Ή߹େ͚ͯΔ [imageView setImageWithURL:imageURL
placeholderImage:nil options:SDWebImageRetryFailed];
ϩʔΧϧͷը૾Λ63-ͰҾ͖ճ͢ w ΧϝϥɺϥΠϒϥϦ͔ΒબΜͩࣸਅʹ63-Λ༩ w 4%*NBHF$BDIFʹೖΕΔ w ϑΝΠϧ͕ظݶ͖Ͱอଘ͞ΕΔ - (void)imagePickerController:(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info { UIImage *editedImage = (UIImage *)info[UIImagePickerControllerEditedImage]; ! NSString *uuid = [[NSUUID UUID] UUIDString]; NSString *imageURLString = [NSString stringWithFormat:@"njkimage://images/%@.jpg", uuid]; ! [[SDImageCache sharedImageCache] storeImage:editedImage forKey:imageURLString]; ɹɹ// ͜ͷ imageURLString ΛҾ͖ճͤͲ͜Ͱը૾͕ಘΒΕΔ! }
ϩʔΧϧͷը૾Λ63-ͰҾ͖ճ͢ w .FNPSZ8BSOJOH࣌ʹղ์͢Δ͜ͱ͕ՄೳʹͳΔ w ඞཁʹͳͬͨΒ·ͨGFUDI͢ΕσΟεΫ͔Β෮ ݩ͞ΕΔ w ը૾Λෳબͯ͠Ξοϓϩʔυ͢Δ߹ʹ ϝϞϦރׇΛ͛Δ
ϩʔΧϧͷը૾Λ63-ͰҾ͖ճ͢ w 6**NBHF7JFX 8FC$BDIFͰදࣔͰ͖Δ w ϩʔΧϧσʔλͷ֬ೝը໘ͱ8FCͷσʔλΛදࣔ ͢Δը໘Λڞ௨ԽͰ͖Δ
.81IPUP#SPXTFS w ը૾ϑϧεΫϦʔϯදࣔϥΠϒϥϦ w ෦Ͱ4%8FC*NBHFΛ͍ͬͯΔ w 4%*NBHF$BDIF͕ڞ༻͞ΕΔ w લͷը໘Ͱ։͍͍ͯͨը૾ΩϟογϡΛ࠶ར༻Ͱ͖Δ
'BTU*NBHF$BDIF w 1BUI͕࡞ͬͨߴͳը૾දࣔΛ࣮ݱ͢ΔϥΠϒϥϦ w ࣄલʹ࠷దԽͨ͠ը૾Λ࡞ͬͯΩϟογϡ w ΧϦΧϦʹνϡʔχϯά͞Εͨը૾ද͕ࣔՄೳ w νϡʔχϯά෦Λ൚༻Խ͍ͯ͠ΔͨΊ"1*ෳࡶ w
εϖοΫͰେ͖ͳࣸਅΛ͵Δ͵Δಈ͔͍ͨ͠ ͳΒݕ౼͢ΔՁ͋Γ
'BTU*NBHF$BDIF w 8FC͔Βͷμϯϩʔυػೳ͍͍ͯͳ͍ w ͜͜Λ4%8FC*NBHFʹͤΔ - (void)imageCache:(FICImageCache *)imageCache wantsSourceImageForEntity:(id <FICEntity>)entity
withFormatName:(NSString *)formatName completionBlock: (FICImageRequestCompletionBlock)completionBlock { if ([entity respondsToSelector:@selector(URL)]) { NSURL *URL = [entity performSelector:@selector(URL)]; [[SDWebImageManager sharedManager] downloadWithURL:URL options:SDWebImageRetryFailed progress:nil completed: ^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished) { completionBlock(image); }]; } }
'BTU*NBHF$BDIF w ͦͷ··ͩͱॏΩϟογϡʹͳΔ w ଞͰ͍ճ͞ͳ͍ͳΒ4%*NBHF$BDIFΘͳ͍ Α͏ʹ͢Δ 4%*NBHF$BDIF 'BTU*NBHF$BDIF 4%*NBHF.BOBHFS
·ͱΊ w 4%8FC*NBHF࠷ߴ w ࣗલͷ࣮ࣺͯ·͠ΐ͏