ios懸浮按鈕的實現

我在網上找了很久沒有找到一個懸浮按鈕，所以才決定自己做一個，效果還不錯。

github 下載demo：https://github.com/MartinLi841538513/MartinDemos （一切以demo為准）

 

集成大法：

一，首先引入MLFloatButton.h .m .xib 文件(在demo含)

二，在controller中集成成MLFloatButton

引入#import "MLFloatButton.h"
實現MLFloatButtonDelegate協議以及他的方法buttonTouchAction
然后通過loadFromNibWithFrame初始化floatButton（這里一定要在viewWillAppear實現，否則，popBack將會看不到效果）

prepareForSegue是跳轉到另外一個界面也要能夠顯示該floatButton（通常我們需要這么做），此時我們需要重新設置代理和父視圖。並在下一個controller的viewWillAppear實現addSubview，以及協議方法。

#import "FloatButtonViewController.h"
#import "MLFloatButton.h"
#import "SecondViewController.h"
@interface FloatButtonViewController ()<MLFloatButtonDelegate>
{
    MLFloatButton *floatButton;
}
@end
@implementation FloatButtonViewController

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    floatButton = [MLFloatButton loadFromNibWithFrame:CGRectMake(100, 100, 32, 32) addTarget:self InSuperView:self.view];//這里一定要在viewWillAppear實現，否則，popBack將會看不到效果
}

#pragma mark - Navigation

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ([segue.identifier isEqualToString:@"FloatButtonPush"]) {
        SecondViewController *target = segue.destinationViewController;
        target.floatButton = floatButton;
        target.floatButton.floatButtonDelegate = (id)target; //重新設置代理controller
    }
}

#pragma MLFloatButtonDelegate
-(void)buttonTouchAction{
    NSLog(@"button action");
}
@end

 

在SecondViewController.h

#import "MLFloatButton.h"
@interface SecondViewController : UIViewController
@property(nonatomic,strong)MLFloatButton *floatButton;
@end

 

在SecondViewController.m

#import "SecondViewController.h"

@interface SecondViewController ()<MLFloatButtonDelegate>
@end
@implementation SecondViewController

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    [self.floatButton showInFatherView:self.view];
}

#pragma MLFloatButtonDelegate
-(void)buttonTouchAction{
    NSLog(@"SecondViewController floatButton touched");
}
@end