xaoxuu / axkit Goto Github PK

UIView *view = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
view.backgroundColor = [UIColor yellowColor];
// 圆角半径30，阴影为向下投射的浮起样式
[view.layer ax_cornerRadius:30 shadow:LayerShadowDownFloat];
[self.view addSubview:view];

[view.layer ax_customShadowWithOpacity:0.2 radius:5 offset:CGSizeMake(0, 4)];
// 或者
CGMutablePathRef squarePath = CGPathCreateMutable();
CGPathAddRect(squarePath, NULL, view.bounds);
[view.layer ax_customShadowWithOpacity:0.2 radius:5 offset:CGSizeMake(0, 4) color:[UIColor blueColor] path:squarePath];
CGPathRelease(squarePath);

UIImage *img = UIImageFromView(self.view);

NSError *error = [NSError ax_errorWithMaker:^(NSErrorMaker * _Nonnull error) {
    error.domain = @"my domain";
    error.code = 123;
    error.localizedDescription = @"desc123123";
    error.localizedFailureReason = @"reason123123";
    error.localizedRecoverySuggestion = @"suggestion123123";
    [error.localizedRecoveryOptions addObject:@"1. xxx"];
    [error.localizedRecoveryOptions addObject:@"2. xxx"];
}];

AXLogError(error);

NSError *error = [NSError ax_errorWithMaker:^(NSErrorMaker * _Nonnull error) {
    error.localizedDescription = @"发生了未知错误";
}];

AXLogError(error);

#pragma mark bounds center
@property (nonatomic, readonly, assign) CGPoint boundsCenter;
@property (nonatomic, readonly, assign) CGFloat boundsCenterX;
@property (nonatomic, readonly, assign) CGFloat boundsCenterY;

VersionLaterThanVersion(remoteVersion, [NSBundle ax_appVersion], ^(BOOL later) {
    if (later) {
        // @xaoxuu: 有新版本
    } else {
        // @xaoxuu: 有新版本
    }
}, ^(NSError * _Nonnull error) {
    AXLogError(error);
});

self.imageView.image = [UIImage ax_imageWithColor:axColor.theme size:self.imageView.frame.size alpha:1];

self.imageView = [UIImageView ax_imageViewWithColor:axColor.theme];

// 将self.testView中所有的UILabel中的文字转换支持多语言
[self.testView ax_eachSubview:[UILabel class] action:^(__kindof UIView * _Nonnull subview) {
    UILabel *lb = subview;
    AXLocalizedLabel(lb);
}];
// 将self.testView中所有的UITextField中的文字转换支持多语言
[self.local ax_eachSubview:[UITextField class] action:^(__kindof UIView * _Nonnull subview) {
    UITextField *tf = subview;
    AXLocalizedTextField(tf);
}];
// 将self.testView中所有的UITextView中的文字转换支持多语言
[self.local ax_eachSubview:[UITextView class] action:^(__kindof UIView * _Nonnull subview) {
    UITextView *tv = subview;
    AXLocalizedTextView(tv);
}];

/**
 将UILabel中的文字转换成NSLocalizedString

 @param label 目标UILabel
 */
FOUNDATION_EXTERN void AXLocalizedLabel(UILabel *label);

/**
 将UITextView中的文字转换成NSLocalizedString
 
 @param textView 目标UITextView
 */
FOUNDATION_EXTERN void AXLocalizedTextView(UITextView *textView);

/**
 将UITextField中的文字转换成NSLocalizedString
 
 @param textField 目标UITextField
 */
FOUNDATION_EXTERN void AXLocalizedTextField(UITextField *textField);

inline void AXLocalizedLabel(UILabel *label){
    label.text = NSLocalizedString(label.text, nil);
}

inline void AXLocalizedTextView(UITextView *textView){
    textView.text = NSLocalizedString(textView.text, nil);
}

inline void AXLocalizedTextField(UITextField *textField){
    textField.placeholder = NSLocalizedString(textField.placeholder, nil);
    textField.text = NSLocalizedString(textField.text, nil);
}

// @xaoxuu: 重新获取数据源并刷新tableView
- (void)reloadDataAndRefreshTableView{
    // 无论如何，2秒内最多只会执行一次此方法。
    [NSBlockOperation ax_delay:0 cooldown:2 token:@"reload data and refresh table view" performInMainQueue:^{
        [self.dataList removeAllObjects];
        [self reloadTableView];
    }];
}

- (IBAction)btn1:(UIButton *)sender {
    [NSBlockOperation ax_delay:0 cooldown:60 token:self performInMainQueue:^{
        // @xaoxuu: 立即在主线程施放大招，冷却时间是60秒。
    }];
}

- (IBAction)btn2:(UIButton *)sender {
    [NSBlockOperation ax_delay:2 cooldown:120 token:self performInBackground:^{
        // @xaoxuu: 延迟2秒后在后台默默施放大招，冷却时间是120秒。
    }];
}
// @xaoxuu: 两者的token相同则共享冷却时间。

// 自己调用自己，无限循环
- (void)loop{
    AXLogFunc();
    [self loop];
}

// 自己调用自己，但是发现代码在冷却，所以就失效了，一个环节被中断，死循环就被打破了
- (void)loop{
    AXLogFunc();
    [NSBlockOperation ax_delay:0 cooldown:0.0001 token:@"loop" performInMainQueue:^{
        [self loop];
    }];
}

[self.topView ax_eachSubview:[UIImageView class] action:^(__kindof UIView * _Nonnull subview) {
        
}];

[self.view ax_eachSubview:[UIImageView class] tag:1 action:^(__kindof UIView * _Nonnull subview) {
        
}];
    
[self.view ax_eachSubview:[UIButton class] selected:YES action:^(__kindof UIView * _Nonnull subview) {
        
}];

NSStringFromPercent(CGFloat x);
// 当传入x为小于或等于0的数时，NSStringFromPercent(x)为@"0%"。
// 当传入x为大于0并且小于1的数如0.3时，NSStringFromPercent(0.3)为@"30%"。
// 当传入x为大于或等于1的数时，NSStringFromPercent(x)为@"100%"。

// 希望value在0~1之间
CGFloat value = sender.text.floatValue;
CGFloat result = AXFloatInRange(value, AXFloatRangeMake(0, 1));
// 当value取值小于0时，result为0；
// 当value取值大于0小于1时，result为value；
// 当value取值大于1时，result为1；

/**
 push view controller

 @param vcName view controller name
 @param animated animated
 */
- (void)ax_pushViewControllerNamed:(NSString *)vcName animated:(BOOL)animated;

/**
 push view controller
 
 @param vcName view controller name
 @param animated animated
 @param completion completion
 */
- (void)ax_pushViewControllerNamed:(NSString *)vcName animated:(BOOL)animated completion:(void (^)(UIViewController *targetVC))completion;

/**
 push view controller
 
 @param vcName view controller name
 @param animated animated
 @param completion completion
 @param fail error info
 */
- (void)ax_pushViewControllerNamed:(NSString *)vcName animated:(BOOL)animated completion:(void (^)(UIViewController *targetVC))completion fail:(void (^)(NSError *error))fail;

/**
 创建一个error实例

 @param domain 域
 @param code 错误码
 @param description 描述
 @param reason 原因
 @param suggestion 建议
 @return error实例
 */
+ (instancetype)ax_errorWithDomain:(NSErrorDomain)domain code:(NSInteger)code description:(nullable NSString *)description reason:(NSString *)reason suggestion:(nullable NSString *)suggestion;

/**
 快速创建一个baritem
 
 @param view 自定义视图
 @param action 响应的事件
 @return baritem实例
 */
+ (instancetype)ax_itemWithCustomView:(UIView *)view action:(void (^)(id sender))action;

/**
 弹窗(标题+消息+自定义按钮)（如果action为nil，则只有一个确定按钮）
 @param title 标题
 @param message 消息
 @param action 按钮
 @return 返回alert对象
 */
+ (instancetype)ax_showAlertWithTitle:(nullable NSString *)title message:(nullable NSString *)message actions:(void (^ __nullable)(UIAlertController *alert))actions;
/**
 弹窗(标题+消息+自定义按钮)（如果action为nil，则只有一个确定按钮）
 @param title 标题
 @param message 消息
 @param action 按钮
 @return 返回alert对象
 */
+ (instancetype)ax_showActionSheetWithTitle:(nullable NSString *)title message:(nullable NSString *)message actions:(void (^ __nullable)(UIAlertController *alert))actions;

UIActivityIndicatorView *indicator = [UIActivityIndicatorView defaultIndicator];
// @xaoxuu: 显示到self.view中心
indicator.show(self.view);
// @xaoxuu: 隐藏
indicator.hide();

// @xaoxuu: 一行代码的消息弹窗
[UIAlertController ax_showAlertWithTitle:@"Hello Alert" message:@"这是用一行代码弹出来的只有一个按钮的窗口" action:nil];

// @xaoxuu: 最常用的【取消】+【确定】弹窗
[UIAlertController ax_showAlertWithTitle:@"Hello Alert" message:@"这是用一个方法弹出来的有两个按钮的窗口" ok:^(UIAlertAction * _Nonnull sender) {
    AXLogFormat(@"点击了OK按钮");
}];

[UIAlertController ax_showAlertWithTitle:@"Hello Alert" message:@"这是用一个方法弹出来的完全自定义的系统弹窗" action:^(UIAlertController * _Nonnull alert) {
    // @xaoxuu: 添加取消按钮
    [alert ax_addCancelAction];

    // @xaoxuu: 破坏性按钮（标题为【Confirm】）
    [alert ax_addDestructiveActionWithTitle:nil handler:^(UIAlertAction * _Nonnull sender) {

    }];
    // @xaoxuu: 自定义标题的破坏性按钮
    [alert ax_addDestructiveActionWithTitle:@"删除2" handler:^(UIAlertAction * _Nonnull sender) {

    }];
    // @xaoxuu: 普通按钮（默认标题为【OK】）
    [alert ax_addDefaultActionWithTitle:nil handler:^(UIAlertAction * _Nonnull sender) {

    }];
    // @xaoxuu: 自定义标题的普通按钮
    [alert ax_addDefaultActionWithTitle:@"确定2" handler:^(UIAlertAction * _Nonnull sender) {

    }];

}];

// @xaoxuu: 自定义视图的系统弹窗
[UIAlertController ax_showAlertWithTitle:nil message:@"\n\n\n\n\n\n\n\n\n\n\n" action:^(UIAlertController * _Nonnull alert) {
    UIView *view = [[UIView alloc] initWithFrame:CGRectMake(8, 8, 270-16, 222.3-16)];
    view.backgroundColor = [UIColor md_yellow];
    view.layer.masksToBounds = YES;
    view.layer.cornerRadius = 8;

    [UIActivityIndicatorView defaultIndicator].show(view);

    [alert.view addSubview:view];

}];

[self hidesBottomBarWhenPushed]; // available(0.0.6)

[self ax_hidesBottomBarWhenPushed:YES]; // available(0.0.6)

AXLocalizeAllSubviewsInView(self.view); // available(0.0.6)

// @xaoxuu: 以下这些方法提供更加灵活的实现，可按需使用。
AXLocalizeLabel(self.label);
AXLocalizeTextField(self.textField);
AXLocalizeTextView(self.textView);
AXLocalizeAllLabelsInView(self.view);
AXLocalizeAllTextFieldsInView(self.view);
AXLocalizeAllTextViewsInView(self.view);

AXLocalizeAllSubviewsInView(self.view); // available(0.0.6)

// @xaoxuu: 以下这些方法提供更加灵活的实现，可按需使用。
AXLocalizeLabel(self.label);
AXLocalizeTextField(self.textField);
AXLocalizeTextView(self.textView);
AXLocalizeAllLabelsInView(self.view);
AXLocalizeAllTextFieldsInView(self.view);
AXLocalizeAllTextViewsInView(self.view);

// @xaoxuu: 获取view距离底部的高度
CGFloat superH = self.ax_superview.frame.size.height;
CGFloat superF = self.ax_superview.frame.origin.y;
CGFloat heightToBottom = kScreenH - superF - superH;
// @xaoxuu: 被遮挡的高度
CGFloat offset = keyBoardHeight - heightToBottom;
if (offset < 0) {
    offset = 0;
}

// available(0.0.6)
FOUNDATION_EXTERN NSString *NSStringFromInt(int x);
// deprecated(0.0.5)
FOUNDATION_EXTERN NSString *NSStringFromInt32(int x);

// available(0.0.6)
[self.navigationController ax_pushViewControllerNamed:@"tmpVC"];
// deprecated(0.0.5)
[self ax_pushViewControllerNamed:@"tmpVC" animated:YES];

// available(0.0.6)
[self.navigationController ax_pushViewControllerNamed:@"tmpVC" animated:YES completion:^(UIViewController * _Nonnull targetVC) {
    // push completed call back
    targetVC.title = @"tmp";
} fail:^(NSError * _Nonnull error) {
    // push failed call back
    AXLogError(error);
}];

// deprecated(0.0.5)
[self ax_pushViewControllerNamed:@"tmpVC" animated:YES completion:^(UIViewController * _Nonnull targetVC) {
    // push completed call back
    targetVC.title = @"tmp";
} fail:^(NSError * _Nonnull error) {
    // push failed call back
    AXLogError(error);
}];

[self hidesBottomBarWhenPushed]; // available(0.0.6)

[self ax_hidesBottomBarWhenPushed:YES]; // available(0.0.6)

// 以class来选定某些子视图，例如所有的button、所有的label等
// 让所有的按钮的标题为蓝色
[self.view ax_eachSubview:[UIButton class] action:^(__kindof UIView * _Nonnull subview) {
    UIButton *btn = subview;
    [btn setTitleColor:[UIColor md_blue] forState:UIControlStateNormal]; 
}];

// 打印出所有tag为100的子视图
[self.view ax_eachSubviewWithTag:100 action:^(__kindof UIView * _Nonnull subview) {
    AXLogOBJ(subview);
}];
// 打印出所有tag值在0~100的子视图
[self.view ax_eachSubviewWithTags:AXIntegerRangeMake(0, 100) action:^(__kindof UIView * _Nonnull subview) {
    AXLogOBJ(subview);
}];

// 让所有的按钮的标题为蓝色
[self.view ax_eachButtonInvokeAction:^(__kindof UIButton * _Nonnull button) {
    [button setTitleColor:[UIColor md_blue] forState:UIControlStateNormal];
}];

UIView *tmpView = [[NSBundle mainBundle] loadNibNamed:@"tmpView" owner:nil options:nil].firstObject;

UIView *tmpView = UIViewFromNibNamed(@"tmpView"); // available(0.0.6)

// available(0.0.6)
#define kScreenBounds [UIScreen mainScreen].bounds
// available(0.0.1)
#define kScreenW [UIScreen mainScreen].bounds.size.width
#define kScreenH [UIScreen mainScreen].bounds.size.height
#define kScreenCenterX (0.5 * kScreenW)
#define kScreenCenterY (0.5 * kScreenH)

// 填充随机色
[self.imageView ax_fillWithRandomColor]; // available(0.0.6)

// 填充颜色
[self.imageView ax_fillWithColor:[UIColor md_green]]; // available(0.0.6)

@interface UINavigationItem (AXExtension)

/**
 隐藏返回按钮的标题
 */
- (void)ax_hideBackBarButtonTitle;

/**
 隐藏返回按钮（同时也不能右划返回）
 */
- (void)ax_hideBackBarButton;

@end

@implementation UINavigationItem (AXExtension)

/**
 隐藏返回按钮的标题
 */
- (void)ax_hideBackBarButtonTitle{
    self.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];
}


/**
 隐藏返回按钮（同时也不能右划返回）
 */
- (void)ax_hideBackBarButton{
    self.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];
}


@end

AXLogCGRect(self.testView.frameInScreen);

/**
 pop到指定viewController

 @param index 从rootVC开始向后数的index，rootVC为0
 */
- (void)ax_popToViewControllerWithIndexFromRoot:(NSUInteger)index;

/**
 pop到指定viewController

 @param index 从当前viewController开始向前数的index，当前VC为0
 */
- (void)ax_popToViewControllerWithIndexFromSelf:(NSUInteger)index;

- (IBAction)popFromRoot:(UIButton *)sender {
    [self.controller.navigationController ax_popToViewControllerWithIndexFromRoot:sender.titleLabel.text.integerValue];
    // 传入参数为几，就pop到从rootVC开始向下数的第几层VC。
}
- (IBAction)popFromSelf:(UIButton *)sender {
    [self.controller.navigationController ax_popToViewControllerWithIndexFromSelf:sender.titleLabel.text.integerValue];
    // 传入参数为几，就向前pop几层。
}

- (nullable NSURL *)absoluteURL;

- (BOOL)isURLString;

- (nullable UIImage *)image;

NSString *tmp = @"https://xaoxuu.com/images/avatar.png";
// 需要用到URL的话，就是tmp.absoluteURL
// 需要判断它是不是合法的URL就
if (tmp.isURLString) {
  // 是URL
} else {
  // 不是URL
}

// 有一个ImageView名为imgv
imgv.image = @"test".image;

/**
 移除系统自带的分割线
 */
- (void)ax_hideSeparator;

- (void)viewDidLayoutSubviews{
    [super viewDidLayoutSubviews];
    [self.tabBar ax_hideSeparator];
}

/**
 粗略判断颜色是不是浅色调

 @return 是不是浅色
 */
- (BOOL)isLightColor;

// 假设view上面有一个label
if (view.backgroundColor.isLightColor) {
    label.textColor = axColor.theme;
} else {
    label.textColor = axColor.white;
}

/**
 只在debug模式下运行的函数
 
 @param debug debug操作
 */
FOUNDATION_EXTERN void ax_debug_only(void (^debug)());

inline void ax_debug_only(void (^debug)()){
#ifdef DEBUG
    if (debug) {
        debug();
    }
#endif
}

[NSUserDefaults ax_removeDefaultPersistentDomain];

/**
 移除默认的[NSUserDefaults standardUserDefaults]的所有配置
 */
+ (void)ax_removeDefaultPersistentDomain;

// 启动图片
UIImage *img = [NSBundle ax_appLaunchImage];

/**
 启动图片路径

 @return 启动图片路径
 */
+ (NSString *)ax_appLaunchImagePath;

/**
 启动图片

 @return 启动图片
 */
+ (UIImage *)ax_appLaunchImage;

// 将textField的placeholder颜色设为主题色
textField.placeholderColor = axColor.theme;

FOUNDATION_EXTERN NSArray *NSClassGetAllSubclasses(Class cls);

NSArray *arr = NSClassGetAllSubclasses([UIColor class]);
AXLogOBJ(arr);

// LOG信息如下：
2017-06-30 10:42:42.380764+0800 AXKitDemo[5400:2416565] 
➤ func:-[DebugVC viewDidLoad] line:22
💬[
NSColor,
UICIColor,
UIDisplayP3Color,
UICGColor,
UICachedDevicePatternColor,
UIDeviceWhiteColor,
UICachedDeviceWhiteColor,
UIDeviceRGBColor,
UICachedDeviceRGBColor,
UIPlaceholderColor
]

// 保存图片
[NSUserDefaults ax_setImage:newImage forKey:@"AVATAR"];

// 读取图片
[NSUserDefaults ax_readImageForKey:@"AVATAR" completion:^(UIImage * _Nonnull image) {
    // 读取成功
    self.avatar.image = image;
} failure:^(NSError * _Nonnull error) {
    // 读取失败
    AXLogOBJ(error);
}];

[UIAlertController ax_showActionSheetWithTitle:@"操作表" message:@"操作表描述" action:^(UIAlertController * _Nonnull alert) {
    [alert ax_addCancelAction];
    [alert ax_addDefaultActionWithTitle:@"确定" handler:^(UIAlertAction * _Nonnull sender) {

    }];
    [alert ax_addDestructiveActionWithTitle:@"删除" handler:^(UIAlertAction * _Nonnull sender) {

    }];
}];

/**
 弹窗(标题+消息+自定义按钮)（如果action为nil，则只有一个确定按钮）
 
 @param title 标题
 @param message 消息
 @param action action
 */
+ (void)ax_showActionSheetWithTitle:(nullable NSString *)title message:(nullable NSString *)message action:(void (^ __nullable)(UIAlertController *alert))action;


/**
 弹出一个【取消+确定】两个按钮的弹窗（如果action为nil，则只有一个确定按钮）
 
 @param title 标题
 @param message 消息内容
 @param ok 确定按钮事件
 */
+ (void)ax_showActionSheetWithTitle:(nullable NSString *)title message:(nullable NSString *)message ok:(void (^ __nullable)(UIAlertAction *sender))ok;

// @xaoxuu: 配置主题色
[[UIColorManager sharedInstance] configDefaultTheme:^(UIThemeColorModel * _Nonnull color) {
    color.theme = [UIColor md_amber];
    color.accent = [UIColor md_lime];
    color.background = [UIColor whiteColor];
}];
// 更改axColor的颜色将不会自动缓存，需要调用[axColor saveCurrentTheme]进行缓存。
[axColor saveCurrentTheme];

NSString *str = @"abc".append(@"d").appendCGFloat(1.2).appendReturn().appendNSInteger(50);
NSLog(@"%@",str);

2017-04-14 14:32:53.534 AXKitDemo[17111:290832] abcd1.2
50

/**
 拼接字符串
 */
- (NSString *(^)(NSString *string))append;

/**
拼接NSInteger
 */
- (NSString *(^)(NSInteger x))appendNSInteger;

/**
 拼接NSUInteger
 */
- (NSString *(^)(NSUInteger x))appendNSUInteger;

/** 
 拼接CGFloat
 */
- (NSString *(^)(CGFloat x))appendCGFloat;

/**
 拼接@"\n"
 */
- (NSString *(^)())appendReturn;

// 0.0.3 定时器“恢复”，易产生歧义
- (BOOL)ax_resume;

// 0.0.4 定时器重新开始计时
- (BOOL)ax_restart;

/**
 创建一个baritem

 @param image 图片名
 @param action 响应的事件
 @return baritem实例
 */
+ (instancetype)ax_itemWithImageName:(NSString *)image action:(void (^)(id sender))action;

/**
 快速创建一个baritem

 @param title 标题
 @param action 响应的事件
 @return baritem实例
 */
+ (instancetype)ax_itemWithTitle:(NSString *)title action:(void (^)(id sender))action;

// 隐藏
[self ax_hidesBottomBarWhenPushed:YES];
// 不隐藏
[self ax_hidesBottomBarWhenPushed:NO];

- (void)ax_hidesBottomBarWhenPushed:(BOOL)hide;

UIViewController *rootVC = self.rootVC;

- (UIViewController *)rootVC;

UIImageViewWithImageNamed(NSString *name);

/**
 pop到指定viewController

 @param index 从rootVC开始向后数的index，rootVC为0
 */
- (void)ax_popToViewControllerWithIndexFromRoot:(NSUInteger)index;

/**
 pop到指定viewController

 @param index 从当前viewController开始向前数的index，当前VC为0
 */
- (void)ax_popToViewControllerWithIndexFromSelf:(NSUInteger)index;

// @xaoxuu: 将用户头像缓存到userdefault
[NSUserDefaults ax_setData:UIImagePNGRepresentation(image) forKey:@"avatar"];
// @xaoxuu: 从userdefault读取图片
[NSUserDefaults ax_readDataForKey:@"avatar" completion:^(NSData * _Nonnull data) {
    // @xaoxuu: 读取到值
    UIImage *image = [UIImage imageWithData:data];
    avatar.image = image;
} fail:^(NSError * _Nonnull error) {
    // @xaoxuu: 读取不到值
    AXLogError(error);
}];

// @xaoxuu: 重新获取数据源并刷新tableView
- (void)reloadDataSourceAndTableView{
    [NSBlockOperation ax_delay:0 cooldown:2 token:@"reload data source and refresh table view" performInMainQueue:^{
        [self.dataList removeAllObjects];
        [self reloadTableView];
    }];
}

NSString *string = NSStringFromBool(BOOL x);
// x = YES, string = @"1"
// x = NO,  string = @"0"

NSString *string = NSStringFromFloat(float x);
// x = 1,    string = @"1"
// x = 3.14, string = @"3.14"

NSString *string = NSStringFromCGFloat(CGFloat x);
// x = 1,    string = @"1"
// x = 3.14, string = @"3.14"

NSString *string1 = NSStringFromInt(int x);
NSString *string2 = NSStringFromNSInteger(int x);
NSString *string3 = NSStringFromNSUInteger(int x);
// x = 1, string1 = @"1", string2 = @"1", string3 = @"1"

NSString *string = NSStringFromPointer(id x);
// string may be anything like @"0x10b70a5c0"...

NSString *string = NSStringFromPercent(id x);
// x < 0 or x = 0, string = @"0%"
// x = 0.123, string = @"12.3%"
// x > 1 or x = 1, string = @"100%"

NSString *string = NSStringFromASCIIValue(id x);
// x = 32, string = @" "
// x = 48, string = @"0"
// x = 65, string = @"A"
// x = 90, string = @"Z"
// x = 97, string = @"a"
// x = 122, string = @"z"

[self.tf_desc ax_adjustViewFrameWithKeyboard:self.view];

 *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UITextField setAx_superview:]: unrecognized selector sent to instance 0x1588d650'