UIActivityIndicatorView的兩種形式 用法一：只顯示不停旋轉的進度滾輪指示器。
阿新 • • 發佈：2019-01-04
用法一：只顯示不停旋轉的進度滾輪指示器。
//顯示進度滾輪指示器
-(void)showWaiting {
progressInd=[[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:
UIActivityIndicatorViewStyleWhiteLarge]; progressInd.center=CGPointMake(self.view.center.x,240); [self.navigationController.view addSubview:progressInd]; [progressInd startAnimating
}
//消除滾動輪指示器
-(void)hideWaiting
{
[progressInd stopAnimating];
}
用法二：帶有半透明背景的進度輪指示器。//顯示進度滾輪指示器
-(void)showWaiting:(UIView *)parent {
int width = 32, height = 32;
CGRectframe =CGRectMake(100,200,110,70)；//[parent frame]; //[[UIScreen mainScreen] applicationFrame];int x = frame.size.width;
int y = frame.
frame = CGRectMake((x - width) / 2, (y - height) / 2, width, height);
UIActivityIndicatorView*progressInd= [[UIActivityIndicatorView alloc]initWithFrame:frame]; [progressInd startAnimating];progressInd.activityIndicatorViewStyle= UIActivityIndicatorViewStyleWhiteLarge;
frame =
UILabel *waitingLable = [[UILabelalloc] initWithFrame:frame];
waitingLable.text = @"Loading...";
waitingLable.textColor = [UIColorwhiteColor];
waitingLable.font = [UIFontsystemFontOfSize:15];
waitingLable.backgroundColor = [UIColor clearColor];
frame = CGRectMake(100, 200, 110, 70) ;//[parent frame];UIView *theView = [[UIViewalloc] initWithFrame:frame];
theView.backgroundColor = [UIColor blackColor];
theView.alpha = 0.7;
[theView addSubview:progressInd];
[theView addSubview:waitingLable];
[progressInd release];
[waitingLable release];
[theView setTag:9999];
[parent addSubview:theView];
[theView release];
}
//消除滾動輪指示器
-(void)hideWaiting
{
[[self.view viewWithTag:9999] removeFromSuperview];
}
//顯示進度滾輪指示器
-(void)showWaiting {
progressInd=[[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:
UIActivityIndicatorViewStyleWhiteLarge]; progressInd.center=CGPointMake(self.view.center.x,240); [self.navigationController.view addSubview:progressInd]; [progressInd startAnimating
}
//消除滾動輪指示器
-(void)hideWaiting
{
[progressInd stopAnimating];
}
用法二：帶有半透明背景的進度輪指示器。//顯示進度滾輪指示器
-(void)showWaiting:(UIView *)parent {
int width = 32, height = 32;
CGRectframe =CGRectMake(100,200,110,70)；//[parent frame]; //[[UIScreen mainScreen] applicationFrame];int x = frame.size.width;
int y = frame.
frame = CGRectMake((x - width) / 2, (y - height) / 2, width, height);
UIActivityIndicatorView*progressInd= [[UIActivityIndicatorView alloc]initWithFrame:frame]; [progressInd startAnimating];progressInd.activityIndicatorViewStyle= UIActivityIndicatorViewStyleWhiteLarge;
frame =
UILabel *waitingLable = [[UILabelalloc] initWithFrame:frame];
waitingLable.text = @"Loading...";
waitingLable.textColor = [UIColorwhiteColor];
waitingLable.font = [UIFontsystemFontOfSize:15];
waitingLable.backgroundColor = [UIColor clearColor];
frame = CGRectMake(100, 200, 110, 70) ;//[parent frame];UIView *theView = [[UIViewalloc] initWithFrame:frame];
theView.backgroundColor = [UIColor blackColor];
theView.alpha = 0.7;
[theView addSubview:progressInd];
[theView addSubview:waitingLable];
[progressInd release];
[waitingLable release];
[theView setTag:9999];
[parent addSubview:theView];
[theView release];
}
//消除滾動輪指示器
-(void)hideWaiting
{
[[self.view viewWithTag:9999] removeFromSuperview];
}