//
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// XHPageControl.m
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// XHPageControl
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//
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// Created by xuanhe on 2019/1/2.
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// Copyright © 2019 xuanhe. All rights reserved.
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//
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#import "XHPageControl.h"
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@interface XHPageControl ()<XHPageControlDelegate>
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@end
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@implementation XHPageControl
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- (instancetype)initWithFrame:(CGRect)frame{
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if(self = [super initWithFrame:frame]){
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[self initialize];
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}
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return self;
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}
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- (void)initialize{
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self.backgroundColor = [UIColor clearColor];
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_otherMultiple = 1;
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_currentMultiple = 2;
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_numberOfPages = 0;
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_currentPage = 0;
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_controlSize = 6;
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_controlSpacing = 8;
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_otherColor = [UIColor grayColor];
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_currentColor = [UIColor orangeColor];
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_type = PageControlMiddle;
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}
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- (void)setOtherColor:(UIColor *)otherColor{
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if(![self isTheSameColor:otherColor anotherColor:_otherColor]){
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_otherColor = otherColor;
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[self createPointView];
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}
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}
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- (void)setCurrentColor:(UIColor *)currentColor{
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if(![self isTheSameColor:currentColor anotherColor:_currentColor]){
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_currentColor = currentColor;
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[self createPointView];
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}
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}
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- (void)setControlSize:(NSInteger)controlSize{
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if(_controlSize != controlSize){
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_controlSize = controlSize;
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[self createPointView];
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}
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}
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- (void)setOtherMultiple:(NSInteger)otherMultiple {
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if (otherMultiple != _otherMultiple) {
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_otherMultiple = otherMultiple;
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[self createPointView];
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}
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}
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- (void)setCurrentMultiple:(NSInteger)currentMultiple {
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if (currentMultiple != _currentMultiple) {
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_currentMultiple = currentMultiple;
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[self createPointView];
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}
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}
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- (void)setControlSpacing:(NSInteger)controlSpacing {
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if(_controlSpacing != controlSpacing){
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_controlSpacing = controlSpacing;
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[self createPointView];
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}
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}
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- (void)setCurrentBkImg:(UIImage *)currentBkImg {
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if(_currentBkImg != currentBkImg){
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_currentBkImg = currentBkImg;
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[self createPointView];
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}
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}
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- (void)setOtherBkImg:(UIImage *)otherBkImg {
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if (_otherBkImg != otherBkImg) {
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_otherBkImg = otherBkImg;
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[self createPointView];
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}
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}
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- (void)setType:(XHPageControlType)type {
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if (_type != type) {
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_type = type;
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[self createPointView];
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}
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}
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- (void)setNumberOfPages:(NSInteger)page {
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if(_numberOfPages == page){
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return;
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}
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_numberOfPages = page;
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[self createPointView];
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}
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- (void)setCurrentPage:(NSInteger)currentPage {
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if([self.delegate respondsToSelector:@selector(xh_PageControlClick:index:)]) {
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[self.delegate xh_PageControlClick:self index:currentPage];
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}
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if(_currentPage == currentPage){
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return;
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}
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[self exchangeCurrentView:_currentPage new:currentPage];
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_currentPage = currentPage;
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}
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- (void)clearView {
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[self.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
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}
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- (void)createPointView {
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[self clearView];
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if(_numberOfPages <= 0)
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return;
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//居中控件
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CGFloat startX = 0;
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CGFloat startY = 0;
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CGFloat mainWidth = (_numberOfPages - 1)* _controlSize*_otherMultiple+ (_numberOfPages - 1) * _controlSpacing + _controlSize * _currentMultiple;
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if(self.frame.size.width < mainWidth){
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startX = 0;
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}else{
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if (_type == PageControlLeft) {
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startX = 10;
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}else if (_type == PageControlMiddle){
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startX = (self.frame.size.width - mainWidth)/2.0;
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}else if (_type == PageControlRight){
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startX = self.frame.size.width - mainWidth - 10;
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}
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}
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if(self.frame.size.height < _controlSize){
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startY = 0;
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}else{
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startY = (self.frame.size.height-_controlSize)/2;
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}
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//动态创建点
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for (int page = 0; page < _numberOfPages; page++) {
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if(page == _currentPage){
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UIView *currPointView = [[UIView alloc]initWithFrame:CGRectMake(startX, startY, _controlSize*_currentMultiple, _controlSize)];
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currPointView.layer.cornerRadius = _controlSize/2;
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currPointView.tag = page+1000;
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currPointView.backgroundColor = _currentColor;
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currPointView.userInteractionEnabled = YES;
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UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(clickAction:)];
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[currPointView addGestureRecognizer:tapGesture];
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[self addSubview:currPointView];
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startX = CGRectGetMaxX(currPointView.frame)+_controlSpacing;
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if(_currentBkImg){
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currPointView.backgroundColor = [UIColor clearColor];
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UIImageView *currBkImg = [[UIImageView alloc]init];
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currBkImg.tag = 2233;
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currBkImg.frame = CGRectMake(0, 0, currPointView.frame.size.width, currPointView.frame.size.height);
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currBkImg.image = _currentBkImg;
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[currPointView addSubview:currBkImg];
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}
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}else{
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UIView *otherPointView = [[UIView alloc]initWithFrame:CGRectMake(startX, startY, _controlSize * _otherMultiple, _controlSize)];
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otherPointView.backgroundColor = _otherColor;
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otherPointView.tag = page+1000;
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otherPointView.layer.cornerRadius = _controlSize/2.0;
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otherPointView.userInteractionEnabled = YES;
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if (_otherBkImg) {
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otherPointView.backgroundColor = [UIColor clearColor];
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UIImageView *otherBkImg = [[UIImageView alloc] init];
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otherBkImg.tag = page+1000+2244;
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otherBkImg.frame = CGRectMake(0, 0, otherPointView.frame.size.width, otherPointView.frame.size.height);
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otherBkImg.image = _otherBkImg;
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[otherPointView addSubview:otherBkImg];
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}
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UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(clickAction:)];
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[otherPointView addGestureRecognizer:tapGesture];
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[self addSubview:otherPointView];
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startX = CGRectGetMaxX(otherPointView.frame)+_controlSpacing;
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}
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}
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}
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//切换当前的点
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- (void)exchangeCurrentView:(NSInteger)old new:(NSInteger)new {
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UIView *oldSelect = [self viewWithTag:1000+old];
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CGRect mpSelect = oldSelect.frame;
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UIView *newSeltect = [self viewWithTag:1000+new];
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CGRect newTemp = newSeltect.frame;
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if(_currentBkImg){
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UIView *imgview = [oldSelect viewWithTag:2233];
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[imgview removeFromSuperview];
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newSeltect.backgroundColor=[UIColor clearColor];
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UIImageView *currBkImg = [UIImageView new];
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currBkImg.tag = 2233;
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currBkImg.frame = CGRectMake(0, 0, mpSelect.size.width, mpSelect.size.height);
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currBkImg.image = _currentBkImg;
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[newSeltect addSubview:currBkImg];
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}
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if (_otherBkImg) {
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UIView *imgview=[newSeltect viewWithTag:2244+1000+new];
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[imgview removeFromSuperview];
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oldSelect.backgroundColor = [UIColor clearColor];
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UIImageView *otherBkImg = [UIImageView new];
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otherBkImg.tag = 2244+1000+new;
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otherBkImg.frame = CGRectMake(0, 0, mpSelect.size.width, mpSelect.size.height);
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otherBkImg.image = _otherBkImg;
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[oldSelect addSubview:otherBkImg];
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}
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oldSelect.backgroundColor = _otherColor;
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newSeltect.backgroundColor = _currentColor;
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[UIView animateWithDuration:0.3 animations:^{
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CGFloat lx=mpSelect.origin.x;
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if (new<old)
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lx+=self->_controlSize *(self->_currentMultiple - self->_otherMultiple);
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oldSelect.frame = CGRectMake(lx, mpSelect.origin.y, self->_controlSize * self->_otherMultiple, self->_controlSize);
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CGFloat mx = newTemp.origin.x;
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if (new>old)
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mx -= self->_controlSize * (self->_currentMultiple - self->_otherMultiple);
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newSeltect.frame = CGRectMake(mx, newTemp.origin.y, self->_controlSize * self->_currentMultiple, self->_controlSize);
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// 左边的时候到右边 越过点击
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if(new-old>1) {
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for(NSInteger t = old+1;t < new; t++) {
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UIView *ms = [self viewWithTag:1000+t];
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ms.frame=CGRectMake(ms.frame.origin.x-self->_controlSize * (self->_currentMultiple - self->_otherMultiple), ms.frame.origin.y, self->_controlSize*self->_otherMultiple, self->_controlSize);
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}
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}
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// 右边选中到左边的时候 越过点击
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if(new-old<-1) {
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for(NSInteger t = new+1; t < old; t++) {
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UIView *ms = [self viewWithTag:1000+t];
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ms.frame = CGRectMake(ms.frame.origin.x+self->_controlSize * (self->_currentMultiple - self->_otherMultiple), ms.frame.origin.y, self->_controlSize*self->_otherMultiple, self->_controlSize);
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}
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}
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}];
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}
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- (void)clickAction:(UITapGestureRecognizer*)recognizer{
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NSInteger index = recognizer.view.tag-1000;
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NSLog(@"-----:%ld",(long)index);
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[self setCurrentPage:index];
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}
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- (BOOL)isTheSameColor:(UIColor*)color1 anotherColor:(UIColor*)color2{
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return CGColorEqualToColor(color1.CGColor, color2.CGColor);
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}
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@end
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