[英]Retrieve the names of photos albums (ALAssetsGroup) in Photos.app crash
我正在嘗試獲取所有專輯的名稱。 這是我的工作。
方法[group valueForKey:ALAssetsGroupPropertyName]
崩潰
ALAssetsLibrary *assetsLibrary = [[ALAssetsLibrary alloc] init];
[assetsLibrary enumerateGroupsWithTypes:ALAssetsGroupSavedPhotos | ALAssetsGroupAlbum
usingBlock:^(ALAssetsGroup *group, BOOL *stop) {
if (nil != group)
{
NSLog(@"name %@",[group valueForKey:ALAssetsGroupPropertyName]);
}
*stop = NO;
} failureBlock:^(NSError *error) {
NSLog(@"error: %@", error);
}];
我真的不知道為什么它會崩潰,如果有人知道,我將非常感謝您的幫助!
這是崩潰日志:
*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<ALAssetsGroup 0x17801ff90> valueForUndefinedKey:]: this class is not key value coding-compliant for the key ALAssetsGroupPropertyName.`
您正在調用錯誤的方法。 更改此:
NSLog(@"name %@",[group valueForKey:ALAssetsGroupPropertyName]);
至:
NSLog(@"name %@",[group valueForProperty:ALAssetsGroupPropertyName]);
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