需要效果

代碼實(shí)現(xiàn)

 //給一個(gè)frame，可以限制圖片的大小。不給也行，會(huì)顯示圖片原本大小。
    UIImageView *leftImgV = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
    leftImgV.image = [UIImage imageNamed:@"currOrder_btn_delete_pre"];
    self.chongzhiTextField.leftView = leftImgV;
    self.chongzhiTextField.leftViewMode = UITextFieldViewModeAlways;