Lod*_*pps -1 image objective-c uiwebview
在我的应用程序中,我有一个显示图片列表的UIWebView.现在,当有人用手指敲击图片时,可以选择复制该图片.
是否有办法使它,当有人点击并保持时,出现保存该图片的选项?
欢迎任何想法!
您需要检测长按.为此你需要添加:
@property (nonatomic,strong) UILongPressGestureRecognizer *lpgr;
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并在您的视图中加载:
self.lpgr = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPressGestures:)];
self.lpgr.minimumPressDuration = 1.0f;
self.lpgr.allowableMovement = 100.0f;
[self.view addGestureRecognizer:self.lpgr];
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并在应用检测到长按时要求用户保存图片.
- (void)handleLongPressGestures:(UILongPressGestureRecognizer *)sender
{
if ([sender isEqual:self.lpgr]) {
if (sender.state == UIGestureRecognizerStateBegan)
{
//prompt the user to save the picture .
}
}
}
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