iOS CodeSnippet加速你的开发

作者: 秋燕归 | 来源:发表于2022-05-25 15:13 被阅读0次

一、有啥用：

CodeSnippet主要是为了减少开发人员敲重复代码，试想一下一个页面有10个UIButton,是不是每个UIButton都要敲一遍设置title、image、tittleColor、event这些属性的代码。

如果设置了常用的CodeSnippet，当写一个UIButton的时候，只需要输入快捷键，就能把UIButton对应的代码片段自动打出来，接下来要做的只是把不需要的属性删掉，然后写上自己对应的属性即可。

二、如何创建代码片段

1.在文件空白处编写代码片段

image.png

2.选中该代码片段，然后右击选择Create Code Snippet

image.png

3.分别输入名称和快捷键即可

image.png

或者直接将别人提供的代码片段拷贝到你的代码片段文件夹中
存放代码片段的文件夹为

~/Library/Developer/Xcode/UserData/CodeSnippets

如果没有CodeSnippets，自行创建

以下是我常用的代码片段，自取
链接: https://pan.baidu.com/s/1mNYiPRiVhN9ILuatTEnvHQ 提取码: 70u9

三、怎么用

以UIButton为例，我这边UIButton相关的代码片段快捷键：initbutton
当输入initbutton时，xcode会自动提示

输入快捷键initbutton

按下回车键的时候就会把对应的代码片段写入文件

image.png

接下来就是把对应的属性填上,把不需要的属性删了。

四、常用代码片段

以下仅为个人常用的自定义代码片段

属性相关

值类型

//快捷键 @string
@property (strong, nonatomic) NSString *<#propertyName#>;
//快捷键 @number
@property (strong, nonatomic) NSNumber *<#propertyName#>;
//快捷键 @bool
@property (assign, nonatomic) BOOL <#propertyName#>;
//快捷键 @integer
@property (assign, nonatomic) NSInteger <#propertyName#>;
//快捷键 @float
@property (assign, nonatomic) CGFloat <#propertyName#>;

UI类型

//快捷键 @view
@property (strong, nonatomic) UIView *<#propertyName#>;
//快捷键 @imageview
@property (strong, nonatomic) UIImageView *<#propertyName#>;
//快捷键 @label
@property (assign, nonatomic) UILabel <#propertyName#>;
//快捷键 @button
@property (assign, nonatomic) UIButton <#propertyName#>;
//快捷键 @textfield
@property (assign, nonatomic) UITextFiled <#propertyName#>;
//快捷键 @textview
@property (assign, nonatomic) UITextView <#propertyName#>;
//快捷键 @tableview
@property (assign, nonatomic) UITableView <#propertyName#>;
//快捷键 @collectionview
@property (assign, nonatomic) UICollectionView <#propertyName#>;

初始化相关

NSMutableArray

//快捷键 initmutablearray
<#propertyName#> = [[NSMutableArray alloc] init];

NSMutableArray 懒加载

//快捷键 lazyinitmutablearray
- (NSMutableArray *)<#propertyName#>{
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[NSMutableArray alloc] init];
    }
    return _<#propertyName#>;
}

UIView 常规

//快捷键 initview
<#propertyName#> = [[UIView alloc] init];
<#propertyName#>.backgroundColor = <#UIColor#>;

UIView - 懒加载

//快捷键 lazyinitview
- (UIView *)<#propertyName#>{
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UIView alloc] init];
        _<#propertyName#>.backgroundColor = <#UIColor#>;
    }
    return _<#propertyName#>;
}

UIImageView 常规

    //快捷键 initimageview
    <#propertyName#> = [[UIImageView alloc] init];
    <#propertyName#>.image = <#UIImage#>;
    <#propertyName#>.contentMode = <#UIViewContentMode#>;

UIImageView 懒加载

//快捷键 lazyinitimageview
- (UIImageView *)<#propertyName#>{
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UIImageView alloc] init];
        _<#propertyName#>.image = <#UIImage#>;
        _<#propertyName#>.contentMode = <#UIViewContentMode#>;
    }
    return _<#propertyName#>;
}

UILabel 常规

    //快捷键 initlabel
    <#propertyName#> = [[UILabel alloc] init];
    <#propertyName#>.backgroundColor = <#UIColor#>;
    <#propertyName#>.text = <#NSString#>;
    <#propertyName#>.textColor = <#UIColor#>;
    <#propertyName#>.numberOfLines = <#NSInteger#>;
    <#propertyName#>.font = <#UIFont#>;

UILabel 懒加载

//快捷键 lazyinitlabel
- (UILabel *)<#propertyName#> {
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UILabel alloc] init];
        _<#propertyName#>.backgroundColor = <#UIColor#>;
        _<#propertyName#>.text = <#NSString#>;
        _<#propertyName#>.textColor = <#UIColor#>;
        _<#propertyName#>.numberOfLines = <#NSInteger#>;
        _<#propertyName#>.font = <#UIFont#>;
    }
    return _<#propertyName#>;
}

UIButton 常规

    //快捷键 initbutton
    <#propertyName#> = [[UIButton alloc] init];
    
    <#propertyName#>.backgroundColor = <#UIColor#>;
    <#propertyName#>.titleLabel.font = <#UIFont#>;
    <#propertyName#>.titleLabel.numberOfLines = <#NSInteger#>;
    
    [<#propertyName#> setTitle:<#NSString#> forState:UIControlStateNormal];
    [<#propertyName#> setTitle:<#NSString#> forState:UIControlStateHighlighted];
    [<#propertyName#> setTitle:<#NSString#> forState:UIControlStateSelected];
    [<#propertyName#> setTitle:<#NSString#> forState:UIControlStateDisabled];
    
    [<#propertyName#> setTitleColor:<#UIColor#> forState:UIControlStateNormal];
    [<#propertyName#> setTitleColor:<#UIColor#>forState:UIControlStateHighlighted];
    [<#propertyName#> setTitleColor:<#UIColor#>forState:UIControlStateSelected];
    [<#propertyName#> setTitleColor:<#UIColor#> forState:UIControlStateDisabled];
    
    [<#propertyName#> setImage:<#UIImage#> forState:UIControlStateNormal];
    [<#propertyName#> setImage:<#UIImage#>  forState:UIControlStateHighlighted];
    [<#propertyName#> setImage:<#UIImage#> forState:UIControlStateSelected];
    [<#propertyName#> setImage:<#UIImage#>  forState:UIControlStateDisabled];
    
    [<#propertyName#> addTarget:self action:@selector(<#SEL#>) forControlEvents:UIControlEventTouchUpInside];

UIButton 懒加载

//快捷键 lazyinitbutton
- (UIButton *)<#propertyName#> {
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UIButton alloc] init];
        
        _<#propertyName#>.backgroundColor = <#UIColor#>;
        _<#propertyName#>.titleLabel.font = <#UIFont#>;
        _<#propertyName#>.titleLabel.numberOfLines = <#NSInteger#>;
        
        [_<#propertyName#> setTitle:<#NSString#> forState:UIControlStateNormal];
        [_<#propertyName#> setTitle:<#NSString#> forState:UIControlStateHighlighted];
        [_<#propertyName#> setTitle:<#NSString#> forState:UIControlStateSelected];
        [_<#propertyName#> setTitle:<#NSString#> forState:UIControlStateDisabled];
        
        [_<#propertyName#> setTitleColor:<#UIColor#> forState:UIControlStateNormal];
        [_<#propertyName#> setTitleColor:<#UIColor#>forState:UIControlStateHighlighted];
        [_<#propertyName#> setTitleColor:<#UIColor#>forState:UIControlStateSelected];
        [_<#propertyName#> setTitleColor:<#UIColor#> forState:UIControlStateDisabled];
        
        [_<#propertyName#> setImage:<#UIImage#> forState:UIControlStateNormal];
        [_<#propertyName#> setImage:<#UIImage#>  forState:UIControlStateHighlighted];
        [_<#propertyName#> setImage:<#UIImage#> forState:UIControlStateSelected];
        [_<#propertyName#> setImage:<#UIImage#>  forState:UIControlStateDisabled];
        
        [_<#propertyName#> addTarget:self action:@selector(<#SEL#>) forControlEvents:UIControlEventTouchUpInside];
    }
    return _<#propertyName#>;
}

//快捷键 inittextfield

UITextField 常规

    <#propertyName#> = [[UITextField alloc] init];
    <#propertyName#>.text = <#NSString#>;
    <#propertyName#>.placeholder = <#NSString#>;
    <#propertyName#>.font = <#UIFont#>;
    <#propertyName#>.textColor = <#UIColor#>;
    <#propertyName#>.textAlignment = <#NSTextAlignment#>;
    <#propertyName#>.borderStyle = <#UITextBorderStyle#>;

UITextField 懒加载

//快捷键 lazyinittextfield
- (UITextField *)<#propertyName#> {
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UITextField alloc] init];
        _<#propertyName#>.text = <#NSString#>;
        _<#propertyName#>.placeholder = <#NSString#>;
        _<#propertyName#>.font = <#UIFont#>;
        _<#propertyName#>.textColor = <#UIColor#>;
        _<#propertyName#>.textAlignment = <#NSTextAlignment#>;
        _<#propertyName#>.borderStyle = <#UITextBorderStyle#>;
    }
    return _<#propertyName#>;
}

UITextView 常规

    //快捷键 inittextview
    <#propertyName#> = [[UITextView alloc] init];
    <#propertyName#>.text = <#NSString#>;
    <#propertyName#>.placeholder = <#NSString#>;
    <#propertyName#>.font = <#UIFont#>;
    <#propertyName#>.textColor = <#UIColor#>;
    <#propertyName#>.textAlignment = <#NSTextAlignment#>;

    UILabel *placeHolderLabel = [[UILabel alloc] init];
    placeHolderLabel.text = <#NSString#>;
    placeHolderLabel.numberOfLines = 0;
    placeHolderLabel.textColor = <#UIColor#>;
    placeHolderLabel.font = <#UIFont#>;
    [placeHolderLabel sizeToFit];
    [<#propertyName#> addSubview:placeHolderLabel];

    [<#propertyName#> setValue:placeHolderLabel forKey:@"_placeholderLabel"];

UITextView 懒加载

//快捷键 lazyinittextview
- (UITextView *)<#propertyName#> {
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UITextView alloc] init];
        _<#propertyName#>.text = <#NSString#>;
        _<#propertyName#>.placeholder = <#NSString#>;
        _<#propertyName#>.font = <#UIFont#>;
        _<#propertyName#>.textColor = <#UIColor#>;
        _<#propertyName#>.textAlignment = <#NSTextAlignment#>;
        
        UILabel *placeHolderLabel = [[UILabel alloc] init];
        placeHolderLabel.text = <#NSString#>;
        placeHolderLabel.numberOfLines = 0;
        placeHolderLabel.textColor = <#UIColor#>;
        placeHolderLabel.font = <#UIFont#>;
        [placeHolderLabel sizeToFit];
        [_<#propertyName#> addSubview:placeHolderLabel];

        [_<#propertyName#> setValue:placeHolderLabel forKey:@"_placeholderLabel"];
    }
    return _<#propertyName#>;
}

UITableView 常规

    //快捷键 inittableview
    <#propertyName#> = [[UITableView alloc] initWithFrame:CGRectZero style:<#UITableViewStyle#>];
    <#propertyName#>.separatorColor = <#UIColor#>;
    <#propertyName#>.backgroundColor = <#UIColor#>;
    <#propertyName#>.showsVerticalScrollIndicator = NO;
    <#propertyName#>.showsHorizontalScrollIndicator = NO;
    <#propertyName#>.estimatedRowHeight = 0;
    <#propertyName#>.estimatedSectionFooterHeight = 0;
    <#propertyName#>.estimatedSectionHeaderHeight = 0;
    <#propertyName#>.tableFooterView = [UIView new];
    <#propertyName#>.delegate = self;
    <#propertyName#>.dataSource = self;
    
    [<#propertyName#> registerClass:[<#CellClass#> class] forCellReuseIdentifier:[<#CellClass#> reuseIdentifier]];

UITableView 懒加载

//快捷键 lazyinittableview
- (UITableView *)<#propertyName#> {
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UITableView alloc] initWithFrame:CGRectZero style:<#UITableViewStyle#>];
        _<#propertyName#>.separatorColor = <#UIColor#>;
        _<#propertyName#>.backgroundColor = <#UIColor#>;
        _<#propertyName#>.showsVerticalScrollIndicator = NO;
        _<#propertyName#>.showsHorizontalScrollIndicator = NO;
        _<#propertyName#>.estimatedRowHeight = 0;
        _<#propertyName#>.estimatedSectionFooterHeight = 0;
        _<#propertyName#>.estimatedSectionHeaderHeight = 0;
        _<#propertyName#>.tableFooterView = [UIView new];
        _<#propertyName#>.delegate = self;
        _<#propertyName#>.dataSource = self;
        
        [_<#propertyName#> registerClass:[<#CellClass#> class] forCellReuseIdentifier:[<#CellClass#> reuseIdentifier]];
    }
    return _<#propertyName#>;
}

UICollectionView 初始化

    //快捷键 initcollectionview
    UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
    layout.scrollDirection = UICollectionViewScrollDirectionVertical;
    
    <#propertyName#> = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
    <#propertyName#>.collectionViewLayout = layout;
    <#propertyName#>.delegate = self;
    <#propertyName#>.dataSource = self;
    <#propertyName#>.showsHorizontalScrollIndicator = NO;
    <#propertyName#>.showsVerticalScrollIndicator = NO;
    <#propertyName#>.backgroundColor = <#UIColor#>;
    [<#propertyName#> registerClass:[<#CellClass#> class] forCellWithReuseIdentifier:[<#CellClass#> reuseIdentifier]];

UICollectionView 懒加载

//快捷键 lazyinitcollectionview
- (UICollectionView *)<#propertyName#> {
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UICollectionView alloc] initWithFrame:CGRectZero collectionViewLayout:layout];
        _<#propertyName#>.collectionViewLayout = layout;
        _<#propertyName#>.delegate = self;
        _<#propertyName#>.dataSource = self;
        _<#propertyName#>.showsHorizontalScrollIndicator = NO;
        _<#propertyName#>.showsVerticalScrollIndicator = NO;
        _<#propertyName#>.backgroundColor = <#UIColor#>;
        [_<#propertyName#> registerClass:[<#CellClass#> class] forCellWithReuseIdentifier:[<#CellClass#> reuseIdentifier]];
    }
    return _<#propertyName#>;
}

Layer相关

    //快捷键 layer
    <#propertyName#>.layer.borderWidth = <#CGFloat#>;
    <#propertyName#>.layer.borderColor = <#CGColor#>;
    <#propertyName#>.layer.masksToBounds = <#BOOL#>;
    <#propertyName#>.layer.cornerRadius = <#CGFloat#>;

MJRefresh相关

    //快捷键 listheaderfooter
    WEAK_SELF
    MJRefreshNormalHeader *header = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
        STRONG_SELF
        [self refreshData];
    }];
    
    MJRefreshBackNormalFooter *footer = [MJRefreshBackNormalFooter footerWithRefreshingBlock:^{
        STRONG_SELF
        [self loadMore];
    }];
    
    <#propertyName#>.mj_header = header;
    <#propertyName#>.mj_footer = footer;

Delegate - UITableView

//快捷键 delegatetable
#pragma mark UITableViewDataSource
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
   return <#NSInteger#>;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
   return <#NSInteger#>;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
   NSInteger section = indexPath.section;
   
   <#CellClass#> *cell = [tableView dequeueReusableCellWithIdentifier:[<#CellClass#> reuseIdentifier] forIndexPath:indexPath];

   return cell;
}

#pragma mark UITableViewDelegate
- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath{
   return CGFLOAT_MIN;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
   return CGFLOAT_MIN;
}

- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section{
   return CGFLOAT_MIN;
}

- (nullable UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
   return [[UIView alloc] initWithFrame:CGRectZero];
}

- (nullable UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section{
   return [[UIView alloc] initWithFrame:CGRectZero];
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

}

Delegate - UICollectionView

//快捷键 delegatecollection
#pragma mark - UICollectionViewDataSource
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView{
    return <#NSInteger#>;
}

- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
    return <#NSInteger#>;
}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
    
    <#CellClass#> *cell = [collectionView dequeueReusableCellWithReuseIdentifier:[<#CellClass#> reuseIdentifier] forIndexPath:indexPath];
    
    return cell;
}

#pragma mark - UICollectionViewDelegate
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {

}

- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath{
    return CGSizeMake(<#CGFloat#>, <#CGFloat#>);

}

- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
    return UIEdgeInsetsMake(<#CGFloat#>, <#CGFloat#> ,<#CGFloat#> ,<#CGFloat#>);
}

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section{
    return <#CGFloat#>;
}

- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section{
    return <#CGFloat#>;
}

iOS CodeSnippet加速你的开发

一、有啥用：

二、如何创建代码片段

三、怎么用

四、常用代码片段

属性相关

初始化相关

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