先看效果圖
實現這個效果，用到了JDStatusBarNotification，這是一個易于使用和定制的在狀態欄上顯示提醒信息的控件，可自定義顏色、字體以及動畫，支持進度條展示，并可以顯示活動指示器。
假設這么一個場景，需要調接口修改個人資料，這時有3個狀態，正在修改、修改成功、修改失敗。我們可以寫一個公共類，方便調用，譬如 NSObject+Common。
.h文件寫方法
#import <Foundation/Foundation.h>@interface NSObject (Common)- (void)showStatusBarQueryStr:(NSString *)tipStr;- (void)showStatusBarSuccessStr:(NSString *)tipStr;//此方法在實際開發中調用，調接口失敗返回的error- (void)showStatusBarError:(NSError *)error;//...- (void)showStatusBarErrorStr:(NSString *)tipStr;@end
.m文件實現方法
#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]; }}調用方法
[self showStatusBarQueryStr:@"正在修改個人信息"];
[self showStatusBarSuccessStr:@"個人信息修改成功"];
//[self showStatusBarError:error];[self showStatusBarErrorStr:@"修改失敗"];
總結
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