FLLTest3ViewController.m

//
//  FLLTest3ViewController.m
//  MyLayout
//
//  Created by oybq on 15/10/31.
//  Copyright (c) 2015年 YoungSoft. All rights reserved.
//

#import "FLLTest3ViewController.h"
#import "MyLayout.h"
#import "CFTool.h"


@interface FLLTest3ViewController ()

@property(nonatomic, strong) MyFlowLayout *flowLayout;

@property(nonatomic, strong) UIButton *addButton;

@property(nonatomic, strong) MyLayoutDragger *dragger;

@end

@implementation FLLTest3ViewController


-(void)loadView
{
    /*
       这个例子用来介绍布局视图对动画的支持，以及通过布局视图的autoresizesSubviews属性，以及子视图的扩展属性useFrame和noLayout来实现子视图布局的个性化设置。
     
     布局视图的autoresizesSubviews属性用来设置当布局视图被激发要求重新布局时，是否会对里面的所有子视图进行重新布局。
     子视图的扩展属性useFrame表示某个子视图不受布局视图的布局控制，而是用最原始的frame属性设置来实现自定义的位置和尺寸的设定。
     子视图的扩展属性noLayout表示某个子视图会参与布局，但是并不会正真的调整布局后的frame值。
     
     在新版本1.9.0中将这些能力进行了统一的封装，通过一个拖放类来实现这些功能。
     
     */
    
    MyLinearLayout *rootLayout = [MyLinearLayout linearLayoutWithOrientation:MyOrientation_Vert];
    rootLayout.backgroundColor = [UIColor whiteColor];
    rootLayout.gravity = MyGravity_Horz_Fill;  //垂直线性布局里面的子视图的宽度和布局视图一致。
    self.view = rootLayout;
    
    UILabel *tipLabel = [UILabel new];
    tipLabel.font = [CFTool font:13];
    tipLabel.text = NSLocalizedString(@"  You can drag the following tag to adjust location in layout, MyLayout can use subview's useFrame,noLayout property and layout view's autoresizesSubviews propery to complete some position adjustment and the overall animation features: \n useFrame set to YES indicates subview is not controlled by the layout view but use its own frame to set the location and size instead.\n \n autoresizesSubviews set to NO indicate layout view will not do any layout operation, and will remain in the position and size of all subviews.\n \n noLayout set to YES indicate subview in the layout view just only take up the position and size but not real adjust the position and size when layouting.", @"");
    tipLabel.textColor = [CFTool color:4];
    tipLabel.heightSize.equalTo(@(MyLayoutSize.wrap)); //这两个属性结合着使用实现自动换行和文本的动态高度。
    tipLabel.topPos.equalTo(self.topLayoutGuide);   //子视图不会延伸到导航条屏幕下面。
    [rootLayout addSubview:tipLabel];
    
    
    UILabel *tip2Label = [UILabel new];
    tip2Label.text = NSLocalizedString(@"double click to remove tag", @"");
    tip2Label.font = [CFTool font:13];
    tip2Label.textColor = [CFTool color:3];
    tip2Label.textAlignment = NSTextAlignmentCenter;
    tip2Label.myTop = 3;
    [tip2Label sizeToFit];
    [rootLayout addSubview:tip2Label];
    
    self.flowLayout = [MyFlowLayout flowLayoutWithOrientation:MyOrientation_Vert arrangedCount:4];
    self.flowLayout.backgroundColor = [CFTool color:0];
    self.flowLayout.padding = UIEdgeInsetsMake(10, 10, 10, 10);
    self.flowLayout.subviewSpace = 10;   //流式布局里面的子视图的水平和垂直间距都设置为10
    self.flowLayout.gravity = MyGravity_Horz_Fill;  //流式布局里面的子视图的宽度将平均分配。
    self.flowLayout.weight = 1;   //流式布局占用线性布局里面的剩余高度。
    self.flowLayout.myTop = 10;
    [rootLayout addSubview:self.flowLayout];
    
}

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    //创建一个布局拖动器。
    self.dragger = [self.flowLayout createLayoutDragger];
    self.dragger.animateDuration = 0.2;

    
    for (NSInteger i = 0; i < 14; i++){
        NSString *label = [NSString stringWithFormat:NSLocalizedString(@"drag me %ld", @""),i];
        [self.flowLayout addSubview:[self createTagButton:label]];
    }
    
    //最后添加添加按钮。
    self.addButton = [self createAddButton];
    [self.flowLayout addSubview:self.addButton];
    self.dragger.exclusiveViews = @[self.addButton];
    
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark -- Layout Construction

//创建标签按钮
-(UIButton*)createTagButton:(NSString*)text
{
    UIButton *tagButton = [UIButton new];
    [tagButton setTitle:text forState:UIControlStateNormal];
    tagButton.titleLabel.font = [CFTool font:14];
    tagButton.layer.cornerRadius = 20;
    tagButton.backgroundColor = [CFTool color:(random()%14 + 1)];
    tagButton.heightSize.equalTo(@44);
    
    [tagButton addTarget:self.dragger action:@selector(dragginView:withEvent:) forControlEvents:UIControlEventTouchDragInside]; //注册拖动事件。
    [tagButton addTarget:self.dragger action:@selector(dragginView:withEvent:) forControlEvents:UIControlEventTouchDragOutside]; //注册外面拖动事件。
    [tagButton addTarget:self.dragger action:@selector(dragView:withEvent:) forControlEvents:UIControlEventTouchDown]; //注册按下事件
    [tagButton addTarget:self.dragger action:@selector(dropView:withEvent:) forControlEvents:UIControlEventTouchUpInside]; //注册抬起事件
    [tagButton addTarget:self.dragger action:@selector(dropView:withEvent:) forControlEvents:UIControlEventTouchCancel]; //注册终止事件
    [tagButton addTarget:self action:@selector(handleTouchDownRepeat:withEvent:) forControlEvents:UIControlEventTouchDownRepeat]; //注册多次点击事件

    return tagButton;
    
}

//创建添加按钮
-(UIButton*)createAddButton
{
    UIButton *addButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [addButton setTitle:NSLocalizedString(@"add tag", @"") forState:UIControlStateNormal];
    addButton.titleLabel.font = [CFTool font:14];
    addButton.layer.cornerRadius = 20;
    addButton.layer.borderWidth = 0.5;
    addButton.layer.borderColor = [UIColor lightGrayColor].CGColor;
    addButton.heightSize.equalTo(@44);
    
    [addButton addTarget:self action:@selector(handleAddTagButton:) forControlEvents:UIControlEventTouchUpInside];
    
    return addButton;
}




#pragma mark -- Handle Method

-(void)handleAddTagButton:(id)sender
{
    NSString *label = [NSString stringWithFormat:NSLocalizedString(@"drag me %ld", @""),self.flowLayout.subviews.count - 1];
    [self.flowLayout insertSubview:[self createTagButton:label] atIndex:self.flowLayout.subviews.count - 1];

}


- (IBAction)handleTouchDownRepeat:(UIButton*)sender withEvent:(UIEvent*)event {
    
    [sender removeFromSuperview];
    [self.flowLayout layoutAnimationWithDuration:0.2];
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end