---

本Demo為練手小項目，重要是熟習今朝主流APP的架構形式.此項目中采取MVC設計形式,純代碼和少量XIB方法完成.重要完成了同伙圈功效和搖一搖功效.

預覽後果:

重要重點

1.全體架構

應用UITabBarController和UINavigationController合營完成.個中要留意界說基類,便利全體上的治理,例如對UINavigationController頭部的色彩,字體和襯著色彩等設置.和對UITabBarController的底部的襯著等.

[self.navigationBarsetBackgroundImage:[UIImageimageNamed:@"Dimensional-_Code_Bg"]forBarMetrics:UIBarMetricsDefault];   
 
[self.navigationBarsetTitleTextAttributes:@{
                       NSForegroundColorAttributeName:[UIColor whiteColor]
                      }];
 
[self.navigationBarsetTintColor:[UIColor whiteColor]];

2.發明界面和我的界面

應用UITableViewController和Plist文件完成界面的展現.完成進程中有采取數據模子或直接應用字典等方法.這裡的完成比擬簡略,就不多說啦.

- (instancetype)initWithDict:(NSDictionary *)dict{
 
if (self = [super init]) {
  [selfsetValuesForKeysWithDictionary:dict];
}
return self;
}
 
+ (instancetype)pictureWithDict:(NSDictionary *)dict{
 
return [[self alloc]initWithDict:dict];
}

3.同伙圈功效的完成

這外面重要的難點在於同伙圈首頁的下拉刷新後果的完成,和選擇照片頁的狀況重用成績,和照片的傳遞和署理的完成等.

同伙圈首頁的下拉刷新後果:重要應用transform屬性和scrollview的多種轉動狀況.

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
 self.dragging = YES;
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
 
if (self.num == 0) {
  self.num ++;
  return;
}
 
CGFloat offsetY = scrollView.contentOffset.y;
 
CGFloat angle = -offsetY* M_PI / 30;
 
if (self.dragging == YES) {
 
  if (offsetY <= 110) {
    self.containerView.y = 10 + offsetY;
 
  }
 
}else {
 
  if (self.currentY < 120) {
    self.containerView.y = 10 + offsetY;
  }
 
}
self.activityView.transform = CGAff.netransformMakeRotation(angle);
 
}
- (void)scrollViewDidEndDragging:(UIScrollView *)scrollViewwillDecelerate:(BOOL)decelerate{
 
self.dragging = NO;
 
CGFloat currentY = self.containerView.y;
self.currentY = currentY;
 
}
 
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
 
[UIViewanimateWithDuration:0.25animations:^{
 
  self.containerView.frame = CGRectMake(15, 120, 30, 30);
  self.activityView.transform = CGAff.netransformMakeRotation(2 * M_PI);
}];
 
}

個中照片的展現是采取UICollectionViewController來完成的.沒有直接挪用體系的相冊,是以加年夜了難度.自界說了cell,並采取了署理方法來完成類與類之間的通訊.

@protocol YYPictureCellDelegate 
@optional
- (void)pictureCell:(YYPictureCell *)cellwithDidClickBtn:(UIButton *)btn;
 
@end
 
- (IBAction)clickSureBtn:(UIButton *)sender {
 
if ([self.delegaterespondsToSelector:@selector(pictureCell:withDidClickBtn:)]) {
 
  [self.delegatepictureCell:selfwithDidClickBtn:sender];
}
}
 
- (void)pictureCell:(YYPictureCell *)cellwithDidClickBtn:(UIButton *)btn{
 
if ((self.selectedBtn.count == 9) && (!btn.isSelected)) {
 
  UIAlertView *alert = [[UIAlertView alloc]initWithTitle:nilmessage:@"最多拔取9張照片哦,親!"delegate:nilcancelButtonTitle:@"肯定"otherButtonTitles: nil];
  [alertshow];
 
  return;
}
 
btn.selected = !btn.isSelected;
 
NSIndexPath *indexPath = [self.collectionVieWindexPathForCell:cell];
 
YYPictureModel *model = self.dataArray[indexPath.row];
 
if (btn.isSelected) {
 
  model.clickedBtn = YES;
 
  [self.selectedBtnaddObject:btn];
  [self.selImageArrayaddObject:model];
 
} else{
 
  model.clickedBtn = NO;
  [self.selectedBtnremoveObject:btn];
  [self.selImageArrayremoveObject:model];
}
 
if (self.selectedBtn.count > 0) {
 
  self.doneBtn.enabled = YES;
  self.doneBtn.selected = YES;
  self.previewBtn.enabled = YES;
  self.previewBtn.selected = YES;
}else {
 
  self.doneBtn.enabled = NO;
  self.doneBtn.selected = NO;
  self.previewBtn.enabled = NO;
  self.previewBtn.selected = NO;
} 
}

4.搖一搖功效的完成

搖一搖功效的自己完成非常簡略,就是挪用體系的兩個辦法便可.難點在於動畫後果.其實這裡的動畫後果也不是很難.重要是盤算有點龐雜.能夠是我在網上搜刮到的素材有點不適合.招致要斟酌各個控件的frame成績…

//完成搖一搖功效
- (void)motionBegan:(UIEventSubtype)motionwithEvent:(UIEvent *)event{
 
self.upLine.hidden = NO;
self.downLine.hidden = NO;
[UIViewanimateWithDuration:0.6animations:^{
 
  self.upImageView.y -= 60;
  self.upLine.y -= 60;
 
  self.downImageView.y += 60;
  self.downLine.y += 60;
 
}completion:^(BOOL finished) {
 
  [UIViewanimateWithDuration:0.6animations:^{
 
    self.upImageView.y += 60;
    self.upLine.y += 60;
 
    self.downImageView.y -= 60;
    self.downLine.y -= 60;
 
  }completion:^(BOOL finished) {
 
    self.upLine.hidden = YES;
    self.downLine.hidden = YES;
 
    //彈出搜刮框
    [self showSearchView];
    [self.searchViewperformSelector:@selector(removeFromSuperview)withObject:nilafterDelay:2.4];
  }];
 
}];
}
//搖一搖停止後
- (void)motionEnded:(UIEventSubtype)motionwithEvent:(UIEvent *)event{
 
}

以上就是本文的全體內容，願望對年夜家的進修有所贊助，也願望年夜家多多支撐本站。

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