开发笔记:iOS进度条加载安装动画——HERO博客

篇首语：本文由编程笔记#小编为大家整理，主要介绍了iOS 进度条加载安装动画 —— HERO博客相关的知识，希望对你有一定的参考价值。

ios 进度条、加载、安装动画简单实现。

首先看一下效果图&＃xff1a;

下面贴上代码&＃xff1a;

控制器ViewController&＃xff1a;

#import
&＃64;interface ViewController : UIViewController
&＃64;end
/*** ---------------分割线--------------- ***/
#import "ViewController.h"
#import "HWWaveView.h"
#import "HWCircleView.h"
#import "HWProgressView.h"
#import "HWInstallView.h"
&＃64;interface ViewController ()
&＃64;property (nonatomic, strong) NSTimer *timer;
&＃64;property (nonatomic, weak) HWWaveView *waveView;
&＃64;property (nonatomic, weak) HWCircleView *circleView;
&＃64;property (nonatomic, weak) HWProgressView *progressView;
&＃64;property (nonatomic, weak) HWInstallView *installView;
&＃64;end
&＃64;implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//创建控件
[self creatControl];

//添加定时器
[self addTimer];
}
- (void)creatControl
{
//波浪
HWWaveView *waveView &＃61; [[HWWaveView alloc] initWithFrame:CGRectMake(30, 100, 150, 150)];
[self.view addSubview:waveView];
self.waveView &＃61; waveView;

//圆圈
HWCircleView *circleView &＃61; [[HWCircleView alloc] initWithFrame:CGRectMake(220, 100, 150, 150)];
[self.view addSubview:circleView];
self.circleView &＃61; circleView;

//进度条
HWProgressView *progressView &＃61; [[HWProgressView alloc] initWithFrame:CGRectMake(30, 365, 150, 20)];
[self.view addSubview:progressView];
self.progressView &＃61; progressView;

//加载安装效果
HWInstallView *installView &＃61; [[HWInstallView alloc] initWithFrame:CGRectMake(220, 300, 150, 150)];
[self.view addSubview:installView];
self.installView &＃61; installView;
}
- (void)addTimer
{
_timer &＃61; [NSTimer scheduledTimerWithTimeInterval:0.2f target:self selector:&＃64;selector(timerAction) userInfo:nil repeats:YES];
[[NSRunLoop mainRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];
}
- (void)timerAction
{
_waveView.progress &＃43;&＃61; 0.01;
_circleView.progress &＃43;&＃61; 0.01;
_progressView.progress &＃43;&＃61; 0.01;
_installView.progress &＃43;&＃61; 0.01;

if (_waveView.progress >&＃61; 1) {
[self removeTimer];
NSLog(&＃64;"完成");
}
}
- (void)removeTimer
{
[_timer invalidate];
_timer &＃61; nil;
}
&＃64;end

波浪HWWaveView&＃xff1a;

#import
&＃64;interface HWWaveView : UIView
&＃64;property (nonatomic, assign) CGFloat progress;
&＃64;end
/*** ---------------分割线--------------- ***/
#import "HWWaveView.h"
#define KHWWaveFillColor [UIColor groupTableViewBackgroundColor] //填充颜色
#define KHWWaveTopColor [UIColor colorWithRed:0/255.0 green:191/255.0 blue:255/255.0 alpha:1.0f] //前面波浪颜色
#define KHWWaveBottomColor [UIColor colorWithRed:0/255.0 green:191/255.0 blue:255/255.0 alpha:0.4f] //后面波浪颜色
&＃64;interface HWWaveView ()
&＃64;property (nonatomic, strong) CADisplayLink *displayLink;
&＃64;property (nonatomic, assign) CGFloat wave_amplitude;//振幅a&＃xff08;y &＃61; asin(wx&＃43;φ) &＃43; k&＃xff09;
&＃64;property (nonatomic, assign) CGFloat wave_cycle;//周期w
&＃64;property (nonatomic, assign) CGFloat wave_h_distance;//两个波水平之间偏移
&＃64;property (nonatomic, assign) CGFloat wave_v_distance;//两个波竖直之间偏移
&＃64;property (nonatomic, assign) CGFloat wave_scale;//水波速率
&＃64;property (nonatomic, assign) CGFloat wave_offsety;//波峰所在位置的y坐标
&＃64;property (nonatomic, assign) CGFloat wave_move_width;//移动的距离&＃xff0c;配合速率设置
&＃64;property (nonatomic, assign) CGFloat wave_offsetx;//偏移
&＃64;property (nonatomic, assign) CGFloat offsety_scale;//上升的速度
&＃64;end
&＃64;implementation HWWaveView
- (instancetype)initWithFrame:(CGRect)frame
{
if (self &＃61; [super initWithFrame:frame]) {
self.backgroundColor &＃61; [UIColor clearColor];

//初始化信息
[self initInfo];
}

return self;
}
- (void)initInfo
{
//进度
_progress &＃61; 0;
//振幅
_wave_amplitude &＃61; self.frame.size.height / 25;
//周期
_wave_cycle &＃61; 2 * M_PI / (self.frame.size.width * 0.9);
//两个波水平之间偏移
_wave_h_distance &＃61; 2 * M_PI / _wave_cycle * 0.6;
//两个波竖直之间偏移
_wave_v_distance &＃61; _wave_amplitude * 0.4;
//移动的距离&＃xff0c;配合速率设置
_wave_move_width &＃61; 0.5;
//水波速率
_wave_scale &＃61; 0.4;
//上升的速度
_offsety_scale &＃61; 0.1;
//波峰所在位置的y坐标&＃xff0c;刚开始的时候_wave_offsety是最大值
_wave_offsety &＃61; (1 - _progress) * (self.frame.size.height &＃43; 2 * _wave_amplitude);

[self addDisplayLinkAction];
}
- (void)addDisplayLinkAction
{
_displayLink &＃61; [CADisplayLink displayLinkWithTarget:self selector:&＃64;selector(displayLinkAction)];
[_displayLink addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
}
- (void)displayLinkAction
{
_wave_offsetx &＃43;&＃61; _wave_move_width * _wave_scale;

//完成
if (_wave_offsety <&＃61; 0.01) [self removeDisplayLinkAction];

[self setNeedsDisplay];
}
- (void)removeDisplayLinkAction
{
[_displayLink invalidate];
_displayLink &＃61; nil;
}
- (void)drawRect:(CGRect)rect
{
UIBezierPath *path &＃61; [UIBezierPath bezierPathWithOvalInRect:rect];
[KHWWaveFillColor setFill];
[path fill];
[path addClip];

//绘制两个波形图
[self drawWaveColor:KHWWaveTopColor offsetx:0 offsety:0];
[self drawWaveColor:KHWWaveBottomColor offsetx:_wave_h_distance offsety:_wave_v_distance];
}
- (void)drawWaveColor:(UIColor *)color offsetx:(CGFloat)offsetx offsety:(CGFloat)offsety
{
//波浪动画&＃xff0c;进度的实际操作范围是&＃xff0c;多加上两个振幅的高度&＃xff0c;到达设置进度的位置y
CGFloat end_offY &＃61; (1 - _progress) * (self.frame.size.height &＃43; 2 * _wave_amplitude);
if (_wave_offsety !&＃61; end_offY) {
if (end_offY <_wave_offsety) {
_wave_offsety &＃61; MAX(_wave_offsety -&＃61; (_wave_offsety - end_offY) * _offsety_scale, end_offY);
}else {
_wave_offsety &＃61; MIN(_wave_offsety &＃43;&＃61; (end_offY - _wave_offsety) * _offsety_scale, end_offY);
}
}

UIBezierPath *wavePath &＃61; [UIBezierPath bezierPath];
for (float next_x &＃61; 0.f; next_x <&＃61; self.frame.size.width; next_x &＃43;&＃43;) {
//正弦函数&＃xff0c;绘制波形
CGFloat next_y &＃61; _wave_amplitude * sin(_wave_cycle * next_x &＃43; _wave_offsetx &＃43; offsetx / self.bounds.size.width * 2 * M_PI) &＃43; _wave_offsety &＃43; offsety;
if (next_x &＃61;&＃61; 0) {
[wavePath moveToPoint:CGPointMake(next_x, next_y - _wave_amplitude)];
}else {
[wavePath addLineToPoint:CGPointMake(next_x, next_y - _wave_amplitude)];
}
}

[wavePath addLineToPoint:CGPointMake(self.frame.size.width, self.frame.size.height)];
[wavePath addLineToPoint:CGPointMake(0, self.bounds.size.height)];
[color set];
[wavePath fill];
}
&＃64;end

圆圈HWCircleView&＃xff1a;

#import
&＃64;interface HWCircleView : UIView
&＃64;property (nonatomic, assign) CGFloat progress;
&＃64;end
/*** ---------------分割线--------------- ***/
#import "HWCircleView.h"
#define KHWCircleLineWidth 10.0f
#define KHWCircleFont [UIFont boldSystemFontOfSize:26.0f]
#define KHWCircleColor [UIColor colorWithRed:0/255.0 green:191/255.0 blue:255/255.0 alpha:1]
&＃64;interface HWCircleView ()
&＃64;property (nonatomic, weak) UILabel *cLabel;
&＃64;end
&＃64;implementation HWCircleView
- (instancetype)initWithFrame:(CGRect)frame
{
if (self &＃61; [super initWithFrame:frame]) {
self.backgroundColor &＃61; [UIColor clearColor];

//百分比标签
UILabel *cLabel &＃61; [[UILabel alloc] initWithFrame:self.bounds];
cLabel.font &＃61; KHWCircleFont;
cLabel.textColor &＃61; KHWCircleColor;
cLabel.textAlignment &＃61; NSTextAlignmentCenter;
[self addSubview:cLabel];
self.cLabel &＃61; cLabel;
}
return self;
}
- (void)setProgress:(CGFloat)progress
{
_progress &＃61; progress;
_cLabel.text &＃61; [NSString stringWithFormat:&＃64;"%d%%", (int)floor(progress * 100)];

[self setNeedsDisplay];
}
- (void)drawRect:(CGRect)rect
{
//路径
UIBezierPath *path &＃61; [[UIBezierPath alloc] init];
//线宽
path.lineWidth &＃61; KHWCircleLineWidth;
//颜色
[KHWCircleColor set];
//拐角
path.lineCapStyle &＃61; kCGLineCapRound;
path.lineJoinStyle &＃61; kCGLineJoinRound;
//半径
CGFloat radius &＃61; (MIN(rect.size.width, rect.size.height) - KHWCircleLineWidth) * 0.5;
//画弧&＃xff08;参数&＃xff1a;中心、半径、起始角度(3点钟方向为0)、结束角度、是否顺时针&＃xff09;
[path addArcWithCenter:(CGPoint){rect.size.width * 0.5, rect.size.height * 0.5} radius:radius startAngle:M_PI * 1.5 endAngle:M_PI * 1.5 &＃43; M_PI * 2 * _progress clockwise:YES];
//连线
[path stroke];
}
&＃64;end

进度条HWProgressView&＃xff1a;

#import
&＃64;interface HWProgressView : UIView
&＃64;property (nonatomic, assign) CGFloat progress;
&＃64;end
/*** ---------------分割线--------------- ***/
#import "HWProgressView.h"
#define KProgressBorderWidth 2.0f
#define KProgressPadding 1.0f
#define KProgressColor [UIColor colorWithRed:0/255.0 green:191/255.0 blue:255/255.0 alpha:1]
&＃64;interface HWProgressView ()
&＃64;property (nonatomic, weak) UIView *tView;
&＃64;end
&＃64;implementation HWProgressView
- (instancetype)initWithFrame:(CGRect)frame
{
if (self &＃61; [super initWithFrame:frame]) {
//边框
UIView *borderView &＃61; [[UIView alloc] initWithFrame:self.bounds];
borderView.layer.cornerRadius &＃61; self.bounds.size.height * 0.5;
borderView.layer.masksToBounds &＃61; YES;
borderView.backgroundColor &＃61; [UIColor whiteColor];
borderView.layer.borderColor &＃61; [KProgressColor CGColor];
borderView.layer.borderWidth &＃61; KProgressBorderWidth;
[self addSubview:borderView];

//进度
UIView *tView &＃61; [[UIView alloc] init];
tView.backgroundColor &＃61; KProgressColor;
tView.layer.cornerRadius &＃61; (self.bounds.size.height - (KProgressBorderWidth &＃43; KProgressPadding) * 2) * 0.5;
tView.layer.masksToBounds &＃61; YES;
[self addSubview:tView];
self.tView &＃61; tView;
}

return self;
}
- (void)setProgress:(CGFloat)progress
{
_progress &＃61; progress;

CGFloat margin &＃61; KProgressBorderWidth &＃43; KProgressPadding;
CGFloat maxWidth &＃61; self.bounds.size.width - margin * 2;
CGFloat heigth &＃61; self.bounds.size.height - margin * 2;

_tView.frame &＃61; CGRectMake(margin, margin, maxWidth * progress, heigth);
}
&＃64;end

加载安装效果HWInstallView&＃xff1a;

#import
&＃64;interface HWInstallView : UIView
&＃64;property (nonatomic, assign) CGFloat progress;
&＃64;end
/*** ---------------分割线--------------- ***/
#import "HWInstallView.h"
#define KHWInstallViewMargin 10
#define KHWInstallColor [UIColor colorWithRed:0/255.0 green:191/255.0 blue:255/255.0 alpha:1]
&＃64;implementation HWInstallView
- (instancetype)initWithFrame:(CGRect)frame
{
if (self &＃61; [super initWithFrame:frame]) {
self.backgroundColor &＃61; [UIColor clearColor];
}

return self;
}
- (void)setProgress:(CGFloat)progress
{
_progress &＃61; progress;

[self setNeedsDisplay];
}
- (void)drawRect:(CGRect)rect
{
CGContextRef context &＃61; UIGraphicsGetCurrentContext();

CGFloat xCenter &＃61; rect.size.width * 0.5;
CGFloat yCenter &＃61; rect.size.height * 0.5;
CGFloat radius &＃61; MIN(rect.size.width, rect.size.height) * 0.5 - KHWInstallViewMargin;

//背景遮罩
[KHWInstallColor set];
CGFloat lineW &＃61; MAX(rect.size.width, rect.size.height) * 0.5;
CGContextSetLineWidth(context, lineW);
CGContextAddArc(context, xCenter, yCenter, radius &＃43; lineW * 0.5 &＃43; 5, 0, M_PI * 2, 1);
CGContextStrokePath(context);

//进程圆
CGContextSetLineWidth(context, 1);
CGContextMoveToPoint(context, xCenter, yCenter);
CGContextAddLineToPoint(context, xCenter, 0);
CGFloat endAngle &＃61; - M_PI * 0.5 &＃43; _progress * M_PI * 2 &＃43; 0.001;
CGContextAddArc(context, xCenter, yCenter, radius, - M_PI * 0.5, endAngle, 1);
CGContextFillPath(context);
}
&＃64;end


HWProgress Demo 下载链接&＃xff1a;http://code.cocoachina.com/view/134374

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