先看效果图
实现这个效果，用到了JDStatusBarNotification，这是一个易于使用和定制的在状态栏上显示提醒信息的控件，可自定义颜色、字体以及动画，支持进度条展示，并可以显示活动指示器。
假设这么一个场景，需要调接口修改个人资料，这时有3个状态，正在修改、修改成功、修改失败。我们可以写一个公共类，方便调用，譬如 NSObject+Common。
.h文件写方法
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#import <Foundation/Foundation.h>
@interface NSObject (Common)
- (void)showStatusBarQueryStr:(NSString *)tipStr;
- (void)showStatusBarSuccessStr:(NSString *)tipStr;
//此方法在实际开发中调用，调接口失败返回的error
- (void)showStatusBarError:(NSError *)error;
//...
- (void)showStatusBarErrorStr:(NSString *)tipStr;
@end
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.m文件实现方法
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#import "NSObject+Common.h"
#import "JDStatusBarNotification.h"
@implementation NSObject (Common)
//error返回的tipStr
- (NSString *)tipFromError:(NSError *)error {
if (error && error.userInfo) {
NSMutableString *tipStr = [[NSMutableString alloc] init];
if ([error.userInfo objectForKey:@"msg"]) {
NSArray *msgArray = [[error.userInfo objectForKey:@"msg"] allValues];
NSUInteger num = [msgArray count];
for (int i = 0; i < num; i++) {
NSString *msgStr = [msgArray objectAtIndex:i];
if (i+1 < num) {
[tipStr appendString:[NSString stringWithFormat:@"%@\n", msgStr]];
}else{
[tipStr appendString:msgStr];
}
}
}else{
if ([error.userInfo objectForKey:@"NSLocalizedDescription"]) {
tipStr = [error.userInfo objectForKey:@"NSLocalizedDescription"];
}else{
[tipStr appendFormat:@"ErrorCode%ld", (long)error.code];
}
}
return tipStr;
}
return nil;
}
- (void)showStatusBarQueryStr:(NSString *)tipStr {
[JDStatusBarNotification showWithStatus:tipStr styleName:JDStatusBarStyleSuccess];
[JDStatusBarNotification showActivityIndicator:YES indicatorStyle:UIActivityIndicatorViewStyleWhite];
}
- (void)showStatusBarSuccessStr:(NSString *)tipStr {
if ([JDStatusBarNotification isVisible]) {
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[JDStatusBarNotification showActivityIndicator:NO indicatorStyle:UIActivityIndicatorViewStyleWhite];
[JDStatusBarNotification showWithStatus:tipStr dismissAfter:1.5 styleName:JDStatusBarStyleSuccess];
});
}else{
[JDStatusBarNotification showActivityIndicator:NO indicatorStyle:UIActivityIndicatorViewStyleWhite];
[JDStatusBarNotification showWithStatus:tipStr dismissAfter:1.0 styleName:JDStatusBarStyleSuccess];
}
}
- (void)showStatusBarError:(NSError *)error {
if ([JDStatusBarNotification isVisible]) {
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[JDStatusBarNotification showActivityIndicator:NO indicatorStyle:UIActivityIndicatorViewStyleWhite];
[JDStatusBarNotification showWithStatus:[self tipFromError:error] dismissAfter:1.5 styleName:JDStatusBarStyleError];
});
}else{
[JDStatusBarNotification showActivityIndicator:NO indicatorStyle:UIActivityIndicatorViewStyleWhite];
[JDStatusBarNotification showWithStatus:[self tipFromError:error] dismissAfter:1.5 styleName:JDStatusBarStyleError];
}
}
- (void)showStatusBarErrorStr:(NSString *)tipStr {
if ([JDStatusBarNotification isVisible]) {
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[JDStatusBarNotification showActivityIndicator:NO indicatorStyle:UIActivityIndicatorViewStyleWhite];
[JDStatusBarNotification showWithStatus:tipStr dismissAfter:1.5 styleName:JDStatusBarStyleError];
});
}else{
[JDStatusBarNotification showActivityIndicator:NO indicatorStyle:UIActivityIndicatorViewStyleWhite];
[JDStatusBarNotification showWithStatus:tipStr dismissAfter:1.5 styleName:JDStatusBarStyleError];
}
}
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调用方法
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[self showStatusBarQueryStr:@"正在修改个人信息"];
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[self showStatusBarSuccessStr:@"个人信息修改成功"];
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//[self showStatusBarError:error];
[self showStatusBarErrorStr:@"修改失败"];
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总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对服务器之家的支持。
原文链接：http://www.jianshu.com/p/e45ba99e4259