饼图_移动开发_编程开发_程序员俱乐部

开始的效果图：

点击饼图后，饼图会转一下，同时左下角显示文字，效果图：

项目架构图，注意此项目是要导入第三方库pieChat的，里面包括两个文件，PieChartView.h.PieChartView.m

RootViewControler.m

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
    NSMutableArray *valueArray = [[NSMutableArray alloc] initWithObjects:
                                  [NSNumber numberWithInt:1],
                                  [NSNumber numberWithInt:1],
                                  [NSNumber numberWithInt:1],
                                  [NSNumber numberWithInt:3],
                                  [NSNumber numberWithInt:2],
                                  nil];
    
    NSMutableArray *colorArray = [[NSMutableArray alloc] initWithObjects:
                                  [UIColor blueColor],
                                  [UIColor redColor],
                                  [UIColor orangeColor],
                                  [UIColor greenColor],
                                  [UIColor purpleColor],
      
                                  nil];
    // 必须先创建一个相同大小的container view，再将PieChartView add上去
    UIView *container = [[UIView alloc] initWithFrame:CGRectMake((320 - 250) / 2, 90, 250, 250)];
    PieChartView* pieView = [[PieChartView alloc] initWithFrame:CGRectMake(0, 0, 250, 250)];
    [container addSubview:pieView];
    
    pieView.mValueArray = [NSMutableArray arrayWithArray:valueArray];
    pieView.mColorArray = [NSMutableArray arrayWithArray:colorArray];
    pieView.mInfoTextView = [[UITextView alloc] initWithFrame:CGRectMake(20, 350, 300, 80)];
    pieView.mInfoTextView.backgroundColor = [UIColor clearColor];
    pieView.mInfoTextView.editable = NO;
    pieView.mInfoTextView.userInteractionEnabled = NO;
    [self.view addSubview:container];
    [self.view addSubview:pieView.mInfoTextView];

}