美圖秀秀-美化圖片之【背景虛化】介面設計，秀秀介面設計

美圖秀秀-美化圖片之【背景虛化】介面設計，秀秀介面設計

　　本文是背景虛化介面設計，在美圖秀秀的背景虛化模組主要是映像的模糊處理，可以按照圓形和線性進行模糊處理，並產生選定的形狀。

　　在開發中遇到的誤區

1.模糊形狀使用UIImageView，遇到一些麻煩，即使你向UIImageView對象添加手勢，當你重載touchesBegan時，UIImageView對象也接收不到觸摸事件，而是直接傳遞給self.view。所以最後使用了UIButton來顯示模糊形狀圖片，這樣方便我們接收事件。

2.UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];初始化時用UIButtonTypeCustom才可以顯示原圖片，否則顯示圖片時時高亮狀態的圖片，很是奇怪。

先來幾張

　　

 

一、從美化圖片首頁進入背景虛化

    else if ([text isEqualToString:@"背景虛化"])    {        FWBlurViewController *vc = [[FWBlurViewController alloc] initWithImage:self.image];        [self presentViewController:vc animated:YES completion:^{        }];    }

 

二、初始化介面

self.selectedIndex = 0;        self.view.backgroundColor = [UIColor blackColor];        //顯示圖片    self.imageView = [[UIImageView alloc] initWithImage:self.image];    self.imageView.frame = CGRectMake(0, 0, WIDTH, HEIGHT - 115);    self.imageView.contentMode = UIViewContentModeScaleAspectFit;    [self.view addSubview:self.imageView];        //儲存與取消按鈕的添加    UIImage *i1 = [UIImage imageNamed:@"btn_cancel_a@2x.png"];    self.btnClose = [UIButton buttonWithType:UIButtonTypeCustom];    [self.btnClose setImage:i1 forState:UIControlStateNormal];    self.btnClose.frame = CGRectMake(20, HEIGHT - kCancelHeight - 10, kCancelHeight, kCancelHeight);    [self.btnClose addTarget:self action:@selector(btnCancelOrSaveClicked:) forControlEvents:UIControlEventTouchUpInside];    [self.view addSubview:self.btnClose];        UIImage *i2 = [UIImage imageNamed:@"btn_ok_a@2x.png"];    self.btnSave = [UIButton buttonWithType:UIButtonTypeCustom];    [self.btnSave setImage:i2 forState:UIControlStateNormal];    self.btnSave.frame = CGRectMake(WIDTH - kCancelHeight - 20, HEIGHT - kCancelHeight - 10, kCancelHeight, kCancelHeight);    [self.view addSubview:self.btnSave];    [self.btnSave addTarget:self action:@selector(btnCancelOrSaveClicked:) forControlEvents:UIControlEventTouchUpInside];        [self setupSlider];        self.styleBar = [[FWEffectBar alloc] initWithFrame:CGRectMake(90, HEIGHT - 55, 180, 55)];        NSDictionary *autoDict = [[FWDataManager getDataSourceFromPlist] objectForKey:@"Blur"];    NSArray *normalImageArr = [autoDict objectForKey:@"normalImages"];    NSArray *hightlightedImageArr = [autoDict objectForKey:@"HighlightedImages"];    NSArray *textArr = [autoDict objectForKey:@"Texts"];        NSMutableArray *items = [[NSMutableArray alloc] initWithCapacity:0];        for (int i = 0; i < [textArr count]; i++)    {        FWEffectBarItem *item = [[FWEffectBarItem alloc] initWithFrame:CGRectZero];        [item setFinishedSelectedImage:[UIImage imageNamed:[hightlightedImageArr objectAtIndex:i]] withFinishedUnselectedImage:[UIImage imageNamed:[normalImageArr objectAtIndex:i]] ];        item.title = [textArr objectAtIndex:i];        [items addObject:item];    }    self.styleBar.items = items;    self.styleBar.effectBarDelegate = self;    [self.styleBar setSelectedItem:[self.styleBar.items objectAtIndex:0]];    [self effectBar:self.styleBar didSelectItemAtIndex:0];    [self.view addSubview:self.styleBar];         self.btnBlurType = [UIButton buttonWithType:UIButtonTypeCustom];    [self.btnBlurType setImage:[UIImage imageNamed:@"icon_blur_null"] forState:UIControlStateNormal];    [self.btnBlurType addTarget:self action:@selector(btnBlurClicked:) forControlEvents:UIControlEventTouchUpInside];    self.btnBlurType.frame = CGRectMake(20, HEIGHT - 90, 30, 30);    [self.view addSubview:self.btnBlurType];

 

 

三、模糊形狀視圖管理

- (void)btnBlurClicked:(id)sender{    if (self.subView)    {        return;    }        [self setupSharpView];}- (void)hideShapeView{    [self.subView removeFromSuperview];    self.subView = nil;}- (void)setupSharpView{    NSArray *arr = [NSArray arrayWithObjects:@"icon_blur_null", @"icon_blur_center", @"icon_blur_heart", @"icon_blur_star", @"icon_blur_heptagon", nil];    self.subView = [[UIView alloc] initWithFrame:CGRectMake(10, HEIGHT - 135, 250, 35)];    for (int i = 0; i < [arr count]; i++) {        UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];        [btn setImage:[UIImage imageNamed:[arr objectAtIndex:i]] forState:UIControlStateNormal];        btn.frame = CGRectMake(10 + (35 + 10) * i, 0, 35, 35);        [btn addTarget:self action:@selector(tap:) forControlEvents:UIControlEventTouchUpInside];        [self.subView addSubview:btn];    }        [self.view addSubview:self.subView];}- (void)tap:(id)sender{    [self hideShapeView];        [self.btnBlurType setImage:((UIButton *)sender).currentImage forState:UIControlStateNormal];}- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{    [self hideShapeView];}

 

 

小知識

1.[self.slider setThumbImage:[UIImage imageNamed:@"icon_slider_thumb"] forState:UIControlStateNormal];這段代碼可以修改UISLIDER的滑塊圖片，預設的滑塊太大~

2.UIImageView攔截事件要弱於UIButton

3.推薦建立UIButton時類型選擇UIButtonTypeCustom。

 

介面做完主攻具體功能實現了，估計還得1個星期左右~

下載項目

 

 

 

 

為自己加油！