107 lines
3.8 KiB
Objective-C
107 lines
3.8 KiB
Objective-C
//
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// TUIGradientView.m
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// TUICalling
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//
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// Created by noah on 2021/8/24.
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//
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#import "TUIGradientView.h"
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@interface TUIGradientView ()
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/// 常用渐变方向集合
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@property (nonatomic, strong) NSDictionary <NSNumber *, NSArray <NSValue *> *> *pointsDict;
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/// 渐变颜色
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@property (nonatomic, copy) NSArray <UIColor *> *gradientColors;
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/// 渐变颜色区间
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@property (nonatomic, copy) NSArray <NSNumber *> *gradientLocations;
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/// 起始点
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@property (nonatomic, assign) CGPoint gradientStartPoint;
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/// 结束点
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@property (nonatomic, assign) CGPoint gradientEndPoint;
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@end
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@implementation TUIGradientView
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#pragma mark - override
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+ (Class)layerClass {
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return [CAGradientLayer class];
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}
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#pragma mark - 设置渐变参数，提供常用渐变方向
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- (void)configWithColors:(NSArray<UIColor *> *)colors direction:(TUIGradientViewDirection)direction {
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NSArray <NSValue *> *pointArray = self.pointsDict[@(direction)];
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[self configWithColors:colors locations:nil startPoint:[[pointArray firstObject] CGPointValue] endPoint:[[pointArray lastObject] CGPointValue]];
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}
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#pragma mark - 设置渐变参数
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- (void)configWithColors:(NSArray<UIColor *> *)colors locations:(NSArray<NSNumber *> *)locations startPoint:(CGPoint)startPoint endPoint:(CGPoint)endPoint {
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NSMutableArray *colorsTemp = [NSMutableArray array];
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for (UIColor *color in colors) {
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if ((__bridge id)color.CGColor) {
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[colorsTemp addObject:(__bridge id)color.CGColor];
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}
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}
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self.gradientColors = [colorsTemp copy];
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self.gradientLocations = locations;
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self.gradientStartPoint = startPoint;
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self.gradientEndPoint = endPoint;
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}
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#pragma mark- 私有方法
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- (void)setGradientColors:(NSArray<UIColor *> *)gradientColors {
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if ([self checkCurrentLayerClass]) {
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[((CAGradientLayer *)self.layer) setColors:gradientColors];
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}
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}
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- (void)setGradientLocations:(NSArray<NSNumber *> *)gradientLocations {
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if ([self checkCurrentLayerClass]) {
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[((CAGradientLayer *)self.layer) setLocations:gradientLocations];
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}
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}
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- (void)setGradientStartPoint:(CGPoint)gradientStartPoint {
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if ([self checkCurrentLayerClass]) {
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[((CAGradientLayer *)self.layer) setStartPoint:gradientStartPoint];
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}
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}
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- (void)setGradientEndPoint:(CGPoint)gradientEndPoint {
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if ([self checkCurrentLayerClass]) {
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[((CAGradientLayer *)self.layer) setEndPoint:gradientEndPoint];
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}
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}
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#pragma mark - 检查当前layer类
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- (BOOL)checkCurrentLayerClass {
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return [self.layer isKindOfClass:[CAGradientLayer class]];
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}
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#pragma mark - 常用渐变方向集合
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- (NSDictionary <NSNumber *, NSArray <NSValue *> *> *)pointsDict {
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return @{
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@(TUIGradientViewDirectionLeftToRight) : @[[NSValue valueWithCGPoint:CGPointMake(0, 0)], [NSValue valueWithCGPoint:CGPointMake(1, 0)]],
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@(TUIGradientViewDirectionRightToLeft) : @[[NSValue valueWithCGPoint:CGPointMake(1, 0)], [NSValue valueWithCGPoint:CGPointMake(0, 0)]],
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@(TUIGradientViewDirectionBottomToTop) : @[[NSValue valueWithCGPoint:CGPointMake(0, 1)], [NSValue valueWithCGPoint:CGPointMake(0, 0)]],
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@(TUIGradientViewDirectionTopToBottom) : @[[NSValue valueWithCGPoint:CGPointMake(0, 0)], [NSValue valueWithCGPoint:CGPointMake(0, 1)]],
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@(TUIGradientViewDirectionLeftBottomToRightTop) : @[[NSValue valueWithCGPoint:CGPointMake(0, 1)], [NSValue valueWithCGPoint:CGPointMake(1, 0)]],
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@(TUIGradientViewDirectionLeftTopToRightBottom) : @[[NSValue valueWithCGPoint:CGPointMake(0, 0)], [NSValue valueWithCGPoint:CGPointMake(1, 1)]],
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@(TUIGradientViewDirectionRightBottomToLeftTop) : @[[NSValue valueWithCGPoint:CGPointMake(1, 1)], [NSValue valueWithCGPoint:CGPointMake(0, 0)]],
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@(TUIGradientViewDirectionRightTopToLeftBottom) : @[[NSValue valueWithCGPoint:CGPointMake(1, 0)], [NSValue valueWithCGPoint:CGPointMake(0, 1)]]
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};
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}
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@end
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