1.初步简单的文本显示使用

显示界面的 .m文件中

导入
#import "MBProgressHUD.h"

属性
@property (nonatomic,strong) MBProgressHUD* toastView;//弹出提示

懒加载
-(MBProgressHUD*) toastView{
    
    if (!_toastView) {
        _toastView = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
        _toastView.minShowTime = 2;
        [_toastView setMode:MBProgressHUDModeText];
        _toastView.contentColor = [UIColor grayColor];
        _toastView.bezelView.backgroundColor = [UIColor blackColor];
    }
    return _toastView;
}

需要提醒的方法中
 //弹出toast的文字
-(void)getToastString:(NSString*)str{

    self.toastView.label.text = str;
    [self.toastView hideAnimated:YES];
    //隐藏掉之后回执行的block
    需要弹出的界面* vc_self = self;
    self.toastView.completionBlock = ^{
        
        [vc_self.toastView removeFromSuperview];
        vc_self.toastView = nil;
    };
}