568 lines
21 KiB
Objective-C
Executable File
568 lines
21 KiB
Objective-C
Executable File
//
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// BRStringPickerView.m
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// BRPickerViewDemo
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//
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// Created by renbo on 2017/8/11.
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// Copyright © 2017 irenb. All rights reserved.
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//
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// 最新代码下载地址：https://github.com/91renb/BRPickerView
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#import "BRStringPickerView.h"
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@interface BRStringPickerView ()<UIPickerViewDelegate, UIPickerViewDataSource>
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{
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BOOL _dataSourceException; // 数据源格式是否有误
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}
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/** 选择器 */
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@property (nonatomic, strong) UIPickerView *pickerView;
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/** 单列选择的值 */
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@property (nonatomic, copy) NSString *mSelectValue;
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/** 多列选择的值 */
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@property (nonatomic, copy) NSArray <NSString *>* mSelectValues;
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/** 数据源 */
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@property (nullable, nonatomic, copy) NSArray *mDataSourceArr;
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@end
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@implementation BRStringPickerView
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#pragma mark - 1.显示【单列】选择器
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+ (void)showPickerWithTitle:(NSString *)title
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dataSourceArr:(NSArray *)dataSourceArr
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selectIndex:(NSInteger)selectIndex
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resultBlock:(BRStringResultModelBlock)resultBlock {
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[self showPickerWithTitle:title dataSourceArr:dataSourceArr selectIndex:selectIndex isAutoSelect:NO resultBlock:resultBlock];
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}
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#pragma mark - 2.显示【单列】选择器
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+ (void)showPickerWithTitle:(NSString *)title
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dataSourceArr:(NSArray *)dataSourceArr
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selectIndex:(NSInteger)selectIndex
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isAutoSelect:(BOOL)isAutoSelect
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resultBlock:(BRStringResultModelBlock)resultBlock {
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// 创建选择器
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BRStringPickerView *strPickerView = [[BRStringPickerView alloc]init];
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strPickerView.pickerMode = BRStringPickerComponentSingle;
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strPickerView.title = title;
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strPickerView.dataSourceArr = dataSourceArr;
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strPickerView.selectIndex = selectIndex;
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strPickerView.isAutoSelect = isAutoSelect;
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strPickerView.resultModelBlock = resultBlock;
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// 显示
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[strPickerView show];
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}
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#pragma mark - 3.显示【多列】选择器
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+ (void)showMultiPickerWithTitle:(NSString *)title
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dataSourceArr:(NSArray *)dataSourceArr
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selectIndexs:(NSArray <NSNumber *>*)selectIndexs
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resultBlock:(BRStringResultModelArrayBlock)resultBlock {
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[self showMultiPickerWithTitle:title dataSourceArr:dataSourceArr selectIndexs:selectIndexs isAutoSelect:NO resultBlock:resultBlock];
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}
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#pragma mark - 4.显示【多列】选择器
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+ (void)showMultiPickerWithTitle:(NSString *)title
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dataSourceArr:(NSArray *)dataSourceArr
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selectIndexs:(NSArray <NSNumber *>*)selectIndexs
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isAutoSelect:(BOOL)isAutoSelect
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resultBlock:(BRStringResultModelArrayBlock)resultBlock {
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// 创建选择器
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BRStringPickerView *strPickerView = [[BRStringPickerView alloc]init];
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strPickerView.pickerMode = BRStringPickerComponentMulti;
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strPickerView.title = title;
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strPickerView.dataSourceArr = dataSourceArr;
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strPickerView.selectIndexs = selectIndexs;
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strPickerView.isAutoSelect = isAutoSelect;
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strPickerView.resultModelArrayBlock = resultBlock;
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// 显示
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[strPickerView show];
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}
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#pragma mark - 5.显示【联动】选择器
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+ (void)showLinkagePickerWithTitle:(nullable NSString *)title
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dataSourceArr:(nullable NSArray *)dataSourceArr
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selectIndexs:(nullable NSArray <NSNumber *> *)selectIndexs
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isAutoSelect:(BOOL)isAutoSelect
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resultBlock:(nullable BRStringResultModelArrayBlock)resultBlock {
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// 创建选择器
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BRStringPickerView *strPickerView = [[BRStringPickerView alloc]init];
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strPickerView.pickerMode = BRStringPickerComponentLinkage;
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strPickerView.title = title;
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strPickerView.dataSourceArr = dataSourceArr;
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strPickerView.selectIndexs = selectIndexs;
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strPickerView.isAutoSelect = isAutoSelect;
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strPickerView.resultModelArrayBlock = resultBlock;
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// 显示
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[strPickerView show];
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}
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#pragma mark - 初始化自定义选择器
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- (instancetype)initWithPickerMode:(BRStringPickerMode)pickerMode {
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if (self = [super init]) {
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self.pickerMode = pickerMode;
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}
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return self;
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}
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#pragma mark - 处理选择器数据
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- (void)handlerPickerData {
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if (self.dataSourceArr.count == 0) {
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_dataSourceException = YES;
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}
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id item = [self.dataSourceArr firstObject];
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if (self.pickerMode == BRStringPickerComponentSingle) {
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_dataSourceException = [item isKindOfClass:[NSArray class]];
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} else if (self.pickerMode == BRStringPickerComponentMulti) {
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_dataSourceException = [item isKindOfClass:[NSString class]];
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} else if (self.pickerMode == BRStringPickerComponentLinkage) {
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_dataSourceException = ![item isKindOfClass:[BRResultModel class]];
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}
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if (_dataSourceException) {
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NSAssert(!_dataSourceException, @"数据源异常！请检查选择器数据源的格式");
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return;
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}
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// 处理选择器当前选择的值
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if (self.pickerMode == BRStringPickerComponentSingle) {
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self.mDataSourceArr = self.dataSourceArr;
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NSInteger selectIndex = 0;
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if (self.selectIndex > 0 && self.selectIndex < self.mDataSourceArr.count) {
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selectIndex = self.selectIndex;
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} else {
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if (self.mSelectValue) {
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id item = [self.mDataSourceArr firstObject];
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if ([item isKindOfClass:[BRResultModel class]]) {
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for (NSInteger i = 0; i < self.mDataSourceArr.count; i++) {
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BRResultModel *model = self.mDataSourceArr[i];
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if ([model.value isEqualToString:self.mSelectValue]) {
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selectIndex = i;
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break;
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}
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}
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} else {
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if ([self.mDataSourceArr containsObject:self.mSelectValue]) {
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selectIndex = [self.mDataSourceArr indexOfObject:self.mSelectValue];
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}
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}
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}
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}
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self.selectIndex = selectIndex;
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} else if (self.pickerMode == BRStringPickerComponentMulti) {
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self.mDataSourceArr = self.dataSourceArr;
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NSMutableArray *selectIndexs = [[NSMutableArray alloc]init];
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for (NSInteger i = 0; i < self.mDataSourceArr.count; i++) {
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NSArray *itemArr = self.mDataSourceArr[i];
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NSInteger row = 0;
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if (self.selectIndexs.count > 0) {
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if (i < self.selectIndexs.count) {
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NSInteger index = [self.selectIndexs[i] integerValue];
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row = ((index > 0 && index < itemArr.count) ? index : 0);
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}
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} else {
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if (self.mSelectValues.count > 0 && i < self.mSelectValues.count) {
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NSString *value = self.mSelectValues[i];
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id item = [itemArr firstObject];
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if ([item isKindOfClass:[BRResultModel class]]) {
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for (NSInteger j = 0; j < itemArr.count; j++) {
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BRResultModel *model = itemArr[j];
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if ([model.value isEqualToString:value]) {
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row = j;
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break;
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}
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}
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} else {
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if ([itemArr containsObject:value]) {
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row = [itemArr indexOfObject:value];
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}
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}
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}
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}
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[selectIndexs addObject:@(row)];
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}
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self.selectIndexs = [selectIndexs copy];
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} else if (self.pickerMode == BRStringPickerComponentLinkage) {
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NSMutableArray *selectIndexs = [[NSMutableArray alloc]init];
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NSMutableArray *mDataSourceArr = [[NSMutableArray alloc]init];
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BRResultModel *selectModel = nil;
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BOOL hasNext = YES;
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NSInteger i = 0;
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NSMutableArray *dataArr = [self.dataSourceArr mutableCopy];
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do {
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NSArray *nextArr = [self getNextDataArr:dataArr selectModel:selectModel];
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// 设置 numberOfComponents，防止 key 等于 parentKey 时进入死循环
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if (nextArr.count == 0 || i > self.numberOfComponents - 1) {
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hasNext = NO;
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break;
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}
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NSInteger selectIndex = 0;
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if (self.selectIndexs.count > i && [self.selectIndexs[i] integerValue] < nextArr.count) {
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selectIndex = [self.selectIndexs[i] integerValue];
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}
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selectModel = nextArr[selectIndex];
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[selectIndexs addObject:@(selectIndex)];
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[mDataSourceArr addObject:nextArr];
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i++;
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} while (hasNext);
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self.selectIndexs = [selectIndexs copy];
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self.mDataSourceArr = [mDataSourceArr copy];
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}
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}
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- (NSArray <BRResultModel *>*)getNextDataArr:(NSArray *)dataArr selectModel:(BRResultModel *)selectModel {
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NSMutableArray *tempArr = [[NSMutableArray alloc]init];
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// parentKey = @"-1"，表示是第一列数据
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NSString *key = selectModel ? selectModel.key : @"-1";
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for (BRResultModel *model in dataArr) {
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if ([model.parentKey isEqualToString:key]) {
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[tempArr addObject:model];
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}
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}
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return [tempArr copy];
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}
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#pragma mark - 选择器
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- (UIPickerView *)pickerView {
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if (!_pickerView) {
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CGFloat pickerHeaderViewHeight = self.pickerHeaderView ? self.pickerHeaderView.bounds.size.height : 0;
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_pickerView = [[UIPickerView alloc]initWithFrame:CGRectMake(0, self.pickerStyle.titleBarHeight + pickerHeaderViewHeight, self.keyView.bounds.size.width, self.pickerStyle.pickerHeight)];
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_pickerView.backgroundColor = self.pickerStyle.pickerColor;
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_pickerView.autoresizingMask = UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleWidth;
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_pickerView.dataSource = self;
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_pickerView.delegate = self;
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}
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return _pickerView;
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}
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#pragma mark - UIPickerViewDataSource
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// 1.设置 pickerView 的列数
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- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
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switch (self.pickerMode) {
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case BRStringPickerComponentSingle:
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return 1;
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break;
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case BRStringPickerComponentMulti:
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case BRStringPickerComponentLinkage:
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return self.mDataSourceArr.count;
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break;
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default:
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break;
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}
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}
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// 2.设置 pickerView 每列的行数
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- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component {
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switch (self.pickerMode) {
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case BRStringPickerComponentSingle:
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return self.mDataSourceArr.count;
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break;
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case BRStringPickerComponentMulti:
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case BRStringPickerComponentLinkage:
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{
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NSArray *itemArr = self.mDataSourceArr[component];
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return itemArr.count;
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}
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break;
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default:
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break;
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}
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}
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#pragma mark - UIPickerViewDelegate
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// 3.设置 pickerView 的显示内容
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- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(nullable UIView *)view {
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// 1.自定义 row 的内容视图
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UILabel *label = (UILabel *)view;
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if (!label) {
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label = [[UILabel alloc]init];
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label.backgroundColor = [UIColor clearColor];
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label.textAlignment = NSTextAlignmentCenter;
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label.font = self.pickerStyle.pickerTextFont;
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label.textColor = self.pickerStyle.pickerTextColor;
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// 字体自适应属性
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label.adjustsFontSizeToFitWidth = YES;
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// 自适应最小字体缩放比例
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label.minimumScaleFactor = 0.5f;
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}
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if (self.pickerMode == BRStringPickerComponentSingle) {
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id item = self.mDataSourceArr[row];
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if ([item isKindOfClass:[BRResultModel class]]) {
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BRResultModel *model = (BRResultModel *)item;
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label.text = model.value;
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} else {
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label.text = item;
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}
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} else if (self.pickerMode == BRStringPickerComponentMulti || self.pickerMode == BRStringPickerComponentLinkage) {
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NSArray *itemArr = self.mDataSourceArr[component];
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id item = [itemArr objectAtIndex:row];
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if ([item isKindOfClass:[BRResultModel class]]) {
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BRResultModel *model = (BRResultModel *)item;
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label.text = model.value;
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} else {
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label.text = item;
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}
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}
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// 2.设置选择器中间选中行的样式
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[self.pickerStyle setupPickerSelectRowStyle:pickerView titleForRow:row forComponent:component];
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return label;
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}
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// 4.滚动 pickerView 执行的回调方法
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- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
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switch (self.pickerMode) {
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case BRStringPickerComponentSingle:
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{
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self.selectIndex = row;
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// 滚动选择时执行 changeModelBlock
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if (self.changeModelBlock) {
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self.changeModelBlock([self getResultModel]);
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}
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// 设置自动选择时，滚动选择时就执行 resultModelBlock
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if (self.isAutoSelect) {
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if (self.resultModelBlock) {
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self.resultModelBlock([self getResultModel]);
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}
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}
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}
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break;
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case BRStringPickerComponentMulti:
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{
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if (component < self.selectIndexs.count) {
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NSMutableArray *mutableArr = [self.selectIndexs mutableCopy];
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[mutableArr replaceObjectAtIndex:component withObject:@(row)];
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self.selectIndexs = [mutableArr copy];
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}
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// 滚动选择时执行 changeModelArrayBlock
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if (self.changeModelArrayBlock) {
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self.changeModelArrayBlock([self getResultModelArr]);
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}
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// 设置自动选择时，滚动选择时就执行 resultModelArrayBlock
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if (self.isAutoSelect) {
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if (self.resultModelArrayBlock) {
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self.resultModelArrayBlock([self getResultModelArr]);
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}
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}
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}
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break;
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case BRStringPickerComponentLinkage:
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{
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if (component < self.selectIndexs.count) {
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NSMutableArray *selectIndexs = [[NSMutableArray alloc]init];
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for (NSInteger i = 0; i < self.selectIndexs.count; i++) {
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if (i < component) {
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[selectIndexs addObject:self.selectIndexs[i]];
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} else if (i == component) {
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[selectIndexs addObject:@(row)];
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} else {
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[selectIndexs addObject:@(0)];
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}
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}
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self.selectIndexs = [selectIndexs copy];
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}
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// 刷新选择器数据
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[self reloadData];
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// 滚动选择时执行 changeModelArrayBlock
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if (self.changeModelArrayBlock) {
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self.changeModelArrayBlock([self getResultModelArr]);
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}
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// 设置自动选择时，滚动选择时就执行 resultModelArrayBlock
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if (self.isAutoSelect) {
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if (self.resultModelArrayBlock) {
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self.resultModelArrayBlock([self getResultModelArr]);
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}
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}
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}
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break;
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default:
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break;
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}
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}
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#pragma mark - 获取【单列】选择器选择的值
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- (BRResultModel *)getResultModel {
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id item = self.selectIndex < self.mDataSourceArr.count ? self.mDataSourceArr[self.selectIndex] : nil;
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if ([item isKindOfClass:[BRResultModel class]]) {
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BRResultModel *model = (BRResultModel *)item;
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model.index = self.selectIndex;
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return model;
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} else {
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BRResultModel *model = [[BRResultModel alloc]init];
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model.index = self.selectIndex;
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model.value = item;
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return model;
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}
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}
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#pragma mark - 获取【多列】选择器选择的值
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- (NSArray *)getResultModelArr {
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NSMutableArray *resultModelArr = [[NSMutableArray alloc]init];
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for (NSInteger i = 0; i < self.mDataSourceArr.count; i++) {
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NSInteger index = [self.selectIndexs[i] integerValue];
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NSArray *dataArr = self.mDataSourceArr[i];
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id item = index < dataArr.count ? dataArr[index] : nil;
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if ([item isKindOfClass:[BRResultModel class]]) {
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BRResultModel *model = (BRResultModel *)item;
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model.index = index;
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[resultModelArr addObject:model];
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} else {
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BRResultModel *model = [[BRResultModel alloc]init];
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model.index = index;
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model.value = item;
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[resultModelArr addObject:model];
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}
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}
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return [resultModelArr copy];
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}
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// 设置行高
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- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component {
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return self.pickerStyle.rowHeight;
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}
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#pragma mark - 重写父类方法
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- (void)reloadData {
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// 1.处理数据源
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[self handlerPickerData];
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// 2.刷新选择器
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[self.pickerView reloadAllComponents];
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// 3.滚动到选择的值
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if (self.pickerMode == BRStringPickerComponentSingle) {
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[self.pickerView selectRow:self.selectIndex inComponent:0 animated:NO];
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} else if (self.pickerMode == BRStringPickerComponentMulti || self.pickerMode == BRStringPickerComponentLinkage) {
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for (NSInteger i = 0; i < self.selectIndexs.count; i++) {
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NSNumber *index = [self.selectIndexs objectAtIndex:i];
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[self.pickerView selectRow:[index integerValue] inComponent:i animated:NO];
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}
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}
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}
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- (void)addPickerToView:(UIView *)view {
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// 1.添加选择器
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if (view) {
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// 立即刷新容器视图 view 的布局（防止 view 使用自动布局时，选择器视图无法正常显示）
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[view setNeedsLayout];
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[view layoutIfNeeded];
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self.frame = view.bounds;
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CGFloat pickerHeaderViewHeight = self.pickerHeaderView ? self.pickerHeaderView.bounds.size.height : 0;
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CGFloat pickerFooterViewHeight = self.pickerFooterView ? self.pickerFooterView.bounds.size.height : 0;
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self.pickerView.frame = CGRectMake(0, pickerHeaderViewHeight, view.bounds.size.width, view.bounds.size.height - pickerHeaderViewHeight - pickerFooterViewHeight);
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[self addSubview:self.pickerView];
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} else {
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[self.alertView addSubview:self.pickerView];
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}
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// ③添加中间选择行的两条分割线
|
||
if (self.pickerStyle.clearPickerNewStyle) {
|
||
[self.pickerStyle addSeparatorLineView:self.pickerView];
|
||
}
|
||
|
||
// 2.绑定数据
|
||
[self reloadData];
|
||
|
||
__weak typeof(self) weakSelf = self;
|
||
self.doneBlock = ^{
|
||
// 点击确定按钮后，执行block回调
|
||
if (weakSelf.pickerMode == BRStringPickerComponentSingle) {
|
||
if (weakSelf.resultModelBlock) {
|
||
weakSelf.resultModelBlock([weakSelf getResultModel]);
|
||
}
|
||
} else if (weakSelf.pickerMode == BRStringPickerComponentMulti || weakSelf.pickerMode == BRStringPickerComponentLinkage) {
|
||
if (weakSelf.resultModelArrayBlock) {
|
||
weakSelf.resultModelArrayBlock([weakSelf getResultModelArr]);
|
||
}
|
||
}
|
||
};
|
||
|
||
[super addPickerToView:view];
|
||
}
|
||
|
||
#pragma mark - 重写父类方法
|
||
- (void)addSubViewToPicker:(UIView *)customView {
|
||
[self.pickerView addSubview:customView];
|
||
}
|
||
|
||
#pragma mark - 弹出选择器视图
|
||
- (void)show {
|
||
[self addPickerToView:nil];
|
||
}
|
||
|
||
#pragma mark - 关闭选择器视图
|
||
- (void)dismiss {
|
||
[self removePickerFromView:nil];
|
||
}
|
||
|
||
#pragma mark - setter 方法
|
||
- (void)setPlistName:(NSString *)plistName {
|
||
NSString *path = [[NSBundle mainBundle] pathForResource:plistName ofType:nil];
|
||
if (path && path.length > 0) {
|
||
self.dataSourceArr = [[NSArray alloc] initWithContentsOfFile:path];
|
||
}
|
||
}
|
||
|
||
- (void)setSelectValue:(NSString *)selectValue {
|
||
self.mSelectValue = selectValue;
|
||
}
|
||
|
||
- (void)setSelectValues:(NSArray<NSString *> *)selectValues {
|
||
self.mSelectValues = selectValues;
|
||
}
|
||
|
||
#pragma mark - getter 方法
|
||
- (NSArray *)mDataSourceArr {
|
||
if (!_mDataSourceArr) {
|
||
_mDataSourceArr = [NSArray array];
|
||
}
|
||
return _mDataSourceArr;
|
||
}
|
||
|
||
- (NSArray<NSNumber *> *)selectIndexs {
|
||
if (!_selectIndexs) {
|
||
_selectIndexs = [NSArray array];
|
||
}
|
||
return _selectIndexs;
|
||
}
|
||
|
||
- (NSArray<NSString *> *)mSelectValues {
|
||
if (!_mSelectValues) {
|
||
_mSelectValues = [NSArray array];
|
||
}
|
||
return _mSelectValues;
|
||
}
|
||
|
||
- (NSInteger)numberOfComponents {
|
||
if (_numberOfComponents <= 0) {
|
||
_numberOfComponents = 3;
|
||
}
|
||
return _numberOfComponents;
|
||
}
|
||
|
||
@end
|