标签:color os io 文件 for ar div 代码
@implementation
ALAssetsLibrary
(ZHExpand)
/**
* 创建本地相册
*
* @param name 相册名称
* @param enumerateGroupsFailureBlock 遍历相册分组失败回调
* @param hasGroup 本地已经存在该相册,请重新命名
* @param createSuccessedBlock 创建相册成功回调
* @param createFaieldBlock 创建相册失败回调
*/
- (
void
)zh_createAssetsGroupWithName:(NSString*)name
enumerateGroupsFailureBlock
:(
void
(^) (
NSError
*error))enumerateGroupsFailureBlock
hasTheNewGroupBlock
:(
void
(^) (
ALAssetsGroup
*group))hasGroup
createSuccessedBlock
:(
void
(^) (
ALAssetsGroup
*group))createSuccessedBlock
createFaieldBlock
:(
void
(^) (
NSError
*error))createFaieldBlock
{
__block
BOOL
hasTheNewGroup =
NO
;
[
self
enumerateGroupsWithTypes
:
ALAssetsGroupAlbum
usingBlock
:^(
ALAssetsGroup
*group,
BOOL
*stop) {
hasTheNewGroup = [name
isEqualToString
:[group
valueForProperty
:ALAssetsGroupPropertyName]];
if
(hasTheNewGroup) {
[
ZHBlock
dispatchOnMainThread
:^{
hasGroup(group);
}];
*stop =
YES
;
}
if
(!group && !hasTheNewGroup && !*stop) {
//遍历完毕,本地没有该文件夹,非手动停止的遍历
[
self
addAssetsGroupAlbumWithName
:name
resultBlock
:^(
ALAssetsGroup
*agroup) {
[
ZHBlock
dispatchOnMainThread
:^{
createSuccessedBlock(agroup);
}];
}
failureBlock
:^(
NSError
*error) {
[
ZHBlock
dispatchOnMainThread
:^{
createFaieldBlock(error);
}];
}];
}
}
failureBlock
:^(
NSError
*error) {
[
ZHBlock
dispatchOnMainThread
:^{
enumerateGroupsFailureBlock(error);
}];
}];
}
/**
* 保存视频到指定相册(直接调用可保存到指定分组)
*
* @param path 视频路径
* @param name 相册名称
* @param saveSuccessBlock 保存成功回调
* @param saveFaieldBlock 保存失败回调
*/
- (
void
)zh_saveVideoWithVideoPath:(NSString*)path
toAlbum
:(NSString*)name
saveSuccessBlock
:(
void
(^) (
ALAssetsGroup
*group,
NSURL
*assetURL,
ALAsset
*asset))saveSuccessBlock
saveFaieldBlock
:(
void
(^) (
NSError
*error))saveFaieldBlock
{
[
self
writeVideoAtPathToSavedPhotosAlbum
:[
NSURL
fileURLWithPath
:path]
completionBlock
:^(
NSURL
*assetURL,
NSError
*error) {
//先添加到公众相册
if
(error) {
[
ZHBlock
dispatchOnMainThread
:^{
saveFaieldBlock(error);
}];
return
;
}
[
self
zh_addVideoToAssetGroupWithAssetUrl
:assetURL
toAlbum
:name
addSuccessBlock
:^(
ALAssetsGroup
*targetGroup,
NSURL
*currentAssetUrl,
ALAsset
*currentAsset) {
[
ZHBlock
dispatchOnMainThread
:^{
saveSuccessBlock(targetGroup,currentAssetUrl,currentAsset);
}];
}
addFaieldBlock
:^(
NSError
*error) {
[
ZHBlock
dispatchOnMainThread
:^{
saveFaieldBlock(error);
}];
}];
}];
}
/**
* 添加相册视频到指定分组
*
* @param assetURL 视频在相册的URL
* @param name 指定分组名称
* @param addSuccessBlock 添加成功回调
* @param addFaieldBlock 添加失败回调
*/
- (
void
)zh_addVideoToAssetGroupWithAssetUrl:(NSURL*)assetURL
toAlbum
:(NSString*)name
addSuccessBlock
:(
void
(^) (
ALAssetsGroup
*targetGroup,
NSURL
*currentAssetUrl,
ALAsset
*currentAsset))addSuccessBlock
addFaieldBlock
:(
void
(^) (
NSError
*error))addFaieldBlock
{
[
self
zh_createAssetsGroupWithName
:name
enumerateGroupsFailureBlock
:^(
NSError
*error) {
if
(error) {
[
ZHBlock
dispatchOnMainThread
:^{
addFaieldBlock(error);
}];
return
;
}
}
hasTheNewGroupBlock
:^(
ALAssetsGroup
*group) {
[
self
assetForURL
:assetURL
resultBlock
:^(
ALAsset
*asset) {
//得到视频的ALAsset实例
[group
addAsset
:asset];
//添加视频到指定相册分组
[
ZHBlock
dispatchOnMainThread
:^{
addSuccessBlock(group,assetURL,asset);
}];
}
failureBlock
:^(
NSError
*error) {
if
(error) {
[
ZHBlock
dispatchOnMainThread
:^{
addFaieldBlock(error);
}];
return
;
}
}];
}
createSuccessedBlock
:^(
ALAssetsGroup
*group) {
[
self
assetForURL
:assetURL
resultBlock
:^(
ALAsset
*asset) {
[group
addAsset
:asset];
[
ZHBlock
dispatchOnMainThread
:^{
addSuccessBlock(group,assetURL,asset);
}];
}
failureBlock
:^(
NSError
*error) {
if
(error) {
[
ZHBlock
dispatchOnMainThread
:^{
addFaieldBlock(error);
}];
return
;
}
}];
}
createFaieldBlock
:^(
NSError
*error) {
if
(error) {
[
ZHBlock
dispatchOnMainThread
:^{
addFaieldBlock(error);
}];
return
;
}
}];
}
标签:color os io 文件 for ar div 代码
原文地址:http://www.cnblogs.com/android-dev/p/3906583.html