点击一个按钮出现一个下拉列表框

一、创建一个视图

1、.h文件

#import <UIKit/UIKit.h>

@interface XHQZuiSaoYiSaoView : UIView

+ (void)configCustomPopViewWithFrame:(CGRect)frame imagesArr:(NSArray *)imagesArr dataSourceArr:(NSArray *)dataourceArr anchorPoint:(CGPoint)anchorPoint seletedRowForIndex:(void(^)(NSInteger index))action animation:(BOOL)animation timeForCome:(NSTimeInterval)come timeForGo:(NSTimeInterval)go;

+ (void)removed;

@end

2、.m文件的实现

#import "XHQZuiSaoYiSaoView.h"

@interface XHQZuiSaoYiSaoView ()/**选中的回调*/

@property (nonatomic, copy) void(^action)(NSInteger index);

@property (nonatomic, strong) NSArray *imagesArr;

@property (nonatomic, strong) NSArray *dataSourceArr;

@property (nonatomic, assign) BOOL animation;

@property (nonatomic, assign) NSTimeInterval come;

@property (nonatomic, assign) NSTimeInterval go;

@end

static XHQZuiSaoYiSaoView *backgroundView;

static UITableView *tableViewQ;

static CGRect frameQ;

static CGPoint anchorPointQ;

@implementation XHQZuiSaoYiSaoView

* frame 设定tableView的位置

* imagesArr 图片数组

* dataSourceArr 文字信息数组

* anchorPoint tableView进行动画时候的锚点

* action 通过block回调确定菜单中被选中的cell

* animation 是否有动画效果

* come 菜单出来动画的时间

* go 菜单收回动画的时间

frameQ = frame;

anchorPointQ = anchorPoint;

if (backgroundView) {

[ XHQZuiSaoYiSaoView removed];

return;

}

UIWindow *window = [UIApplication sharedApplication].keyWindow;

//背景色

backgroundView = [[XHQZuiSaoYiSaoView alloc] initWithFrame:window.bounds];

backgroundView.action = action;

backgroundView.imagesArr = imagesArr;

backgroundView.dataSourceArr = dataourceArr;

backgroundView.animation = animation;

backgroundView.come = come;

backgroundView.go = go;

backgroundView.backgroundColor = [UIColor blackColor];

backgroundView.alpha = 0.1;

//添加手势点击背景能够回收菜单

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:backgroundView action:@selector(handleRemoved)];

[backgroundView addGestureRecognizer:tap];

[window addSubview:backgroundView];

//tableView

tableViewQ = [[UITableView alloc] initWithFrame:frame style:UITableViewStylePlain];

tableViewQ.delegate = backgroundView;

tableViewQ.dataSource = backgroundView;

tableViewQ.bounces=NO;

//根据锚点位置来确定position

if (anchorPoint.x == 0 && anchorPoint.y == 0)

tableViewQ.layer.position = CGPointMake(frameQ.origin.x, frameQ.origin.y);

if (anchorPoint.x == 0 && anchorPoint.y == 0.5)

tableViewQ.layer.position = CGPointMake(frameQ.origin.x, frameQ.origin.y + frameQ.size.height / 2.0);

if (anchorPoint.x == 0 && anchorPoint.y == 1)

tableViewQ.layer.position = CGPointMake(frameQ.origin.x, frameQ.origin.y + frameQ.size.height);

if (anchorPoint.x == 0.5 && anchorPoint.y == 0)

tableViewQ.layer.position = CGPointMake(frameQ.origin.x + frameQ.size.width / 2.0, frameQ.origin.y);

if (anchorPoint.x == 0.5 && anchorPoint.y == 1)

tableViewQ.layer.position = CGPointMake(frameQ.origin.x + frameQ.size.width / 2.0, frameQ.origin.y + frameQ.size.height);

if (anchorPoint.x == 1 && anchorPoint.y == 0)

tableViewQ.layer.position = CGPointMake(frameQ.origin.x + frameQ.size.width, frameQ.origin.y);

if (anchorPoint.x == 1 && anchorPoint.y == 0.5)

tableViewQ.layer.position = CGPointMake(frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height / 2.0);

if (anchorPoint.x == 1 && anchorPoint.y == 1)

tableViewQ.layer.position = CGPointMake(frameQ.origin.x+30 + frameQ.size.width, frameQ.origin.y+60 + frameQ.size.height);

anchorPointQ=anchorPoint;

[[UIColor whiteColor] set];

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextBeginPath(context);

//根据锚点位置绘制三角

if (anchorPointQ.x == 0 && anchorPointQ.y == 0) {

CGContextMoveToPoint(context, frameQ.origin.x + 12, frameQ.origin.y);

CGContextAddLineToPoint(context, frameQ.origin.x + 10, frameQ.origin.y - 15);

CGContextAddLineToPoint(context, frameQ.origin.x + 30, frameQ.origin.y);

}

if (anchorPointQ.x == 0 && anchorPointQ.y == 0.5) {

CGContextMoveToPoint(context, frameQ.origin.x, frameQ.origin.y + frameQ.size.height / 2.0 - 13);

CGContextAddLineToPoint(context, frameQ.origin.x, frameQ.origin.y + frameQ.size.height / 2.0 + 13);

CGContextAddLineToPoint(context, frameQ.origin.x - 15, frameQ.origin.y + frameQ.size.height / 2.0);

}

if (anchorPointQ.x == 0 && anchorPointQ.y == 1) {

CGContextMoveToPoint(context, frameQ.origin.x + 12, frameQ.origin.y + frameQ.size.height);

CGContextAddLineToPoint(context, frameQ.origin.x + 30, frameQ.origin.y + frameQ.size.height);

CGContextAddLineToPoint(context, frameQ.origin.x + 10, frameQ.origin.y + frameQ.size.height + 15);

}

if (anchorPointQ.x == 0.5 && anchorPointQ.y == 0) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0 - 13, frameQ.origin.y);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0 + 13, frameQ.origin.y);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0, frameQ.origin.y - 15);

}

if (anchorPointQ.x == 0.5 && anchorPointQ.y == 1) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0 - 13, frameQ.origin.y + frameQ.size.height);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0 + 13, frameQ.origin.y + frameQ.size.height);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0, frameQ.origin.y + frameQ.size.height + 15);

}

if (anchorPointQ.x == 1 && anchorPointQ.y == 0) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width - 30, frameQ.origin.y);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width - 10, frameQ.origin.y - 15);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width - 12, frameQ.origin.y);

}

if (anchorPointQ.x == 1 && anchorPointQ.y == 0.5) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height / 2.0 - 13);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height / 2.0 + 13);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width + 15, frameQ.origin.y + frameQ.size.height / 2.0);

}

if (anchorPointQ.x == 1 && anchorPointQ.y == 1) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height - 12);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height - 30);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width + 15, frameQ.origin.y + frameQ.size.height - 10);

}

CGContextClosePath(context);

[[UIColor whiteColor] setFill];

[[UIColor whiteColor] setStroke];

CGContextDrawPath(context, kCGPathFillStroke);

tableViewQ.layer.cornerRadius = 10;

tableViewQ.transform = CGAffineTransformMakeScale(1.0, 1.0);

if (animation) {

[UIView animateWithDuration:come animations:^{

tableViewQ.transform = CGAffineTransformMakeScale(1.0, 1.0);

}];

}

tableViewQ.layer.anchorPoint = anchorPointQ;

[window addSubview:tableViewQ];

}

+ (void)removed {

if (backgroundView.animation) {

backgroundView.alpha = 0;

[UIView animateWithDuration:backgroundView.go animations:^{

tableViewQ.transform = CGAffineTransformMakeScale(0.00001, 0.00001);

} completion:^(BOOL finished) {

[backgroundView removeFromSuperview];

backgroundView = nil;

[tableViewQ removeFromSuperview];

tableViewQ = nil;

}];

}

- (void)handleRemoved {

if (backgroundView) {

[XHQZuiSaoYiSaoView removed];

}

#pragma mark ---- UITableViewDelegateAndDatasource --

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

static NSString *identifile = @"cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifile];

if (!cell) {

//选择普通的tableviewCell 左边是图片右边是文字

cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifile];

}

cell.imageView.image = [UIImage imageNamed:_imagesArr[indexPath.row]];

cell.textLabel.font=[UIFont systemFontOfSize:15.0];

cell.backgroundColor=[UIColor colorWithRed:75/255.0 green:202/255.0 blue:255/255.0 alpha:1.0];

cell.textLabel.textColor=[UIColor whiteColor];

cell.textLabel.text = _dataSourceArr[indexPath.row];

return cell;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

return _dataSourceArr.count;

}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {

return tableViewQ.frame.size.height / _dataSourceArr.count;

}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {

if (backgroundView.action) {

//利用block回调确定选中的row

_action(indexPath.row);

[XHQZuiSaoYiSaoView removed];

}

- (void)drawRect:(CGRect)rect {

[[UIColor whiteColor] set];

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextBeginPath(context);

//根据锚点位置绘制三角

if (anchorPointQ.x == 0 && anchorPointQ.y == 0) {

CGContextMoveToPoint(context, frameQ.origin.x + 12, frameQ.origin.y);

CGContextAddLineToPoint(context, frameQ.origin.x + 10, frameQ.origin.y - 15);

CGContextAddLineToPoint(context, frameQ.origin.x + 30, frameQ.origin.y);

}

if (anchorPointQ.x == 0 && anchorPointQ.y == 0.5) {

CGContextMoveToPoint(context, frameQ.origin.x, frameQ.origin.y + frameQ.size.height / 2.0 - 13);

CGContextAddLineToPoint(context, frameQ.origin.x, frameQ.origin.y + frameQ.size.height / 2.0 + 13);

CGContextAddLineToPoint(context, frameQ.origin.x - 15, frameQ.origin.y + frameQ.size.height / 2.0);

}

if (anchorPointQ.x == 0 && anchorPointQ.y == 1) {

CGContextMoveToPoint(context, frameQ.origin.x + 12, frameQ.origin.y + frameQ.size.height);

CGContextAddLineToPoint(context, frameQ.origin.x + 30, frameQ.origin.y + frameQ.size.height);

CGContextAddLineToPoint(context, frameQ.origin.x + 10, frameQ.origin.y + frameQ.size.height + 15);

}

if (anchorPointQ.x == 0.5 && anchorPointQ.y == 0) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0 - 13, frameQ.origin.y);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0 + 13, frameQ.origin.y);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0, frameQ.origin.y - 15);

}

if (anchorPointQ.x == 0.5 && anchorPointQ.y == 1) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0 - 13, frameQ.origin.y + frameQ.size.height);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0 + 13, frameQ.origin.y + frameQ.size.height);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width / 2.0, frameQ.origin.y + frameQ.size.height + 15);

}

if (anchorPointQ.x == 1 && anchorPointQ.y == 0) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width - 30, frameQ.origin.y);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width - 10, frameQ.origin.y - 15);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width - 12, frameQ.origin.y);

}

if (anchorPointQ.x == 1 && anchorPointQ.y == 0.5) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height / 2.0 - 13);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height / 2.0 + 13);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width + 15, frameQ.origin.y + frameQ.size.height / 2.0);

}

if (anchorPointQ.x == 1 && anchorPointQ.y == 1) {

CGContextMoveToPoint(context, frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height - 12);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width, frameQ.origin.y + frameQ.size.height - 30);

CGContextAddLineToPoint(context, frameQ.origin.x + frameQ.size.width + 15, frameQ.origin.y + frameQ.size.height - 10);

}

CGContextClosePath(context);

[[UIColor whiteColor] setFill];

[[UIColor whiteColor] setStroke];

CGContextDrawPath(context, kCGPathFillStroke);

}

@end

二、使用

//图片

//CGPoint point = CGPointMake(1, 1);

NSArray *imagesArr = @[@"addfriend",@"cityPao"] ;

//标题

NSArray *dataSourceArr = @[@"添加蜜友",@"同城对战"] ;

// [ XHQZuiSaoYiSaoView configCustomPopViewWithFrame:CGRectMake(self.view.bounds.size.width-180, 20, 130, 90) imagesArr:imagesArr dataSourceArr:dataSourceArr anchorPoint:point seletedRowForIndex:^(NSInteger index) {

// if(index==0){

MiuSearchfriendViewController *VC = [[MiuSearchfriendViewController alloc] init];

[self.navigationController pushViewController:VC animated:NO];

// }else{

// CitymeleeViewController *city=[[CitymeleeViewController alloc]init];

// [self.navigationController pushViewController:city animated:YES];

// }

// } animation:YES timeForCome:0.3 timeForGo:0.3];

最后编辑于：2017.12.04 03:43:08

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点击一个按钮出现一个下拉列表框

一、创建一个视图

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