iOS CodeSnippet加速你的開發(fā)

一、有啥用：

CodeSnippet主要是為了減少開發(fā)人員敲重復(fù)代碼，試想一下一個頁面有10個UIButton,是不是每個UIButton都要敲一遍設(shè)置title、image、tittleColor、event這些屬性的代碼。

如果設(shè)置了常用的CodeSnippet，當(dāng)寫一個UIButton的時候，只需要輸入快捷鍵，就能把UIButton對應(yīng)的代碼片段自動打出來，接下來要做的只是把不需要的屬性刪掉，然后寫上自己對應(yīng)的屬性即可。

二、如何創(chuàng)建代碼片段

1.在文件空白處編寫代碼片段


image.png

2.選中該代碼片段，然后右擊選擇Create Code Snippet


image.png

3.分別輸入名稱和快捷鍵即可


image.png

或者直接將別人提供的代碼片段拷貝到你的代碼片段文件夾中
存放代碼片段的文件夾為

~/Library/Developer/Xcode/UserData/CodeSnippets

如果沒有CodeSnippets，自行創(chuàng)建

以下是我常用的代碼片段，自取
鏈接: https://pan.baidu.com/s/1mNYiPRiVhN9ILuatTEnvHQ 提取碼: 70u9

三、怎么用

以UIButton為例，我這邊UIButton相關(guān)的代碼片段快捷鍵：initbutton
當(dāng)輸入initbutton時，xcode會自動提示


輸入快捷鍵initbutton

按下回車鍵的時候就會把對應(yīng)的代碼片段寫入文件

image.png

接下來就是把對應(yīng)的屬性填上,把不需要的屬性刪了。

四、常用代碼片段

以下僅為個人常用的自定義代碼片段

屬性相關(guān)

  • 值類型
//快捷鍵 @string
@property (strong, nonatomic) NSString *<#propertyName#>;
//快捷鍵 @number
@property (strong, nonatomic) NSNumber *<#propertyName#>;
//快捷鍵 @bool
@property (assign, nonatomic) BOOL <#propertyName#>;
//快捷鍵 @integer
@property (assign, nonatomic) NSInteger <#propertyName#>;
//快捷鍵 @float
@property (assign, nonatomic) CGFloat <#propertyName#>;
  • UI類型
//快捷鍵 @view
@property (strong, nonatomic) UIView *<#propertyName#>;
//快捷鍵 @imageview
@property (strong, nonatomic) UIImageView *<#propertyName#>;
//快捷鍵 @label
@property (assign, nonatomic) UILabel <#propertyName#>;
//快捷鍵 @button
@property (assign, nonatomic) UIButton <#propertyName#>;
//快捷鍵 @textfield
@property (assign, nonatomic) UITextFiled <#propertyName#>;
//快捷鍵 @textview
@property (assign, nonatomic) UITextView <#propertyName#>;
//快捷鍵 @tableview
@property (assign, nonatomic) UITableView <#propertyName#>;
//快捷鍵 @collectionview
@property (assign, nonatomic) UICollectionView <#propertyName#>;

初始化相關(guān)

  • NSMutableArray
//快捷鍵 initmutablearray
<#propertyName#> = [[NSMutableArray alloc] init];
  • NSMutableArray 懶加載
//快捷鍵 lazyinitmutablearray
- (NSMutableArray *)<#propertyName#>{
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[NSMutableArray alloc] init];
    }
    return _<#propertyName#>;
}
  • UIView 常規(guī)
//快捷鍵 initview
<#propertyName#> = [[UIView alloc] init];
<#propertyName#>.backgroundColor = <#UIColor#>;
  • UIView - 懶加載
//快捷鍵 lazyinitview
- (UIView *)<#propertyName#>{
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UIView alloc] init];
        _<#propertyName#>.backgroundColor = <#UIColor#>;
    }
    return _<#propertyName#>;
}
  • UIImageView 常規(guī)
    //快捷鍵 initimageview
    <#propertyName#> = [[UIImageView alloc] init];
    <#propertyName#>.image = <#UIImage#>;
    <#propertyName#>.contentMode = <#UIViewContentMode#>;
  • UIImageView 懶加載
//快捷鍵 lazyinitimageview
- (UIImageView *)<#propertyName#>{
    if (!_<#propertyName#>) {
        _<#propertyName#> = [[UIImageView alloc] init];
        _<#propertyName#>.image = <#UIImage#>;
        _<#propertyName#>.contentMode = <#UIViewContentMode#>;
    }
    return _<#propertyName#>;
}
  • UILabel 常規(guī)
    //快捷鍵 initlabel
    <#propertyName#> = [[UILabel alloc] init];
    <#propertyName#>.backgroundColor = <#UIColor#>;
    <#propertyName#>.text = <#NSString#>;
    <#propertyName#>.textColor = <#UIColor#>;
    <#propertyName#>.numberOfLines = <#NSInteger#>;
    <#propertyName#>.font = <#UIFont#>;
  • UILabel 懶加載
//快捷鍵 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 常規(guī)
    //快捷鍵 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 懶加載
//快捷鍵 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#>;
}

//快捷鍵 inittextfield

  • UITextField 常規(guī)
    <#propertyName#> = [[UITextField alloc] init];
    <#propertyName#>.text = <#NSString#>;
    <#propertyName#>.placeholder = <#NSString#>;
    <#propertyName#>.font = <#UIFont#>;
    <#propertyName#>.textColor = <#UIColor#>;
    <#propertyName#>.textAlignment = <#NSTextAlignment#>;
    <#propertyName#>.borderStyle = <#UITextBorderStyle#>;
  • UITextField 懶加載
//快捷鍵 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 常規(guī)
    //快捷鍵 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 懶加載
//快捷鍵 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 常規(guī)
    //快捷鍵 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 懶加載
//快捷鍵 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
    //快捷鍵 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 懶加載
//快捷鍵 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相關(guān)
    //快捷鍵 layer
    <#propertyName#>.layer.borderWidth = <#CGFloat#>;
    <#propertyName#>.layer.borderColor = <#CGColor#>;
    <#propertyName#>.layer.masksToBounds = <#BOOL#>;
    <#propertyName#>.layer.cornerRadius = <#CGFloat#>;
  • MJRefresh相關(guān)
    //快捷鍵 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
//快捷鍵 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
//快捷鍵 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#>;
}
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