146 lines
4.0 KiB
Objective-C
146 lines
4.0 KiB
Objective-C
//
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// LXDanMuManager.m
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// LXAnimationTest
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//
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// Created by lianxiang on 2018/8/14.
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// Copyright © 2018年 com.giga.ios. All rights reserved.
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//
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#import "LXDanMuManager.h"
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#import "LXDanMuTrackView.h"
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@implementation LXDanMuManager
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+ (LXDanMuManager *)shareInstance{
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static LXDanMuManager *managerInstance = nil;
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static dispatch_once_t once;
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dispatch_once(&once, ^{
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managerInstance = [[self alloc] init];
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});
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return managerInstance;
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}
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- (void)createDanmuWithTrackSpeedArray:(NSArray *)trackSpeedArray centerY:(float)centerY trackWidth:(float)trackWidth showInView:(UIView *)inView{
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_superView = inView;
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_trackSpeedArray = trackSpeedArray;
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_centerY = centerY;
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_trackWidth = trackWidth;
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_trackArray = [[NSMutableArray alloc] init];
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[self initUI];
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}
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-(void)initUI{
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_baseView = [[UIView alloc] initWithFrame:CGRectMake(0, 0,_trackWidth, 0)];
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_baseView.userInteractionEnabled = NO;
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[_superView addSubview:_baseView];
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for (int i = 0; i<_trackSpeedArray.count; i++) {
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LXDanMuTrackView *trackView = [[LXDanMuTrackView alloc] initWithFrame:CGRectMake(0, (TRACK_HEIGHT + TRACK_VERTICAL_PADDING) * i, _baseView.frame.size.width, TRACK_HEIGHT)];
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[_baseView addSubview:trackView];
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[_trackArray addObject:trackView];
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if (_trackSpeedArray.count - 1 == i) {
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_baseView.frame = CGRectMake(_baseView.frame.origin.x, _baseView.frame.origin.y, _baseView.frame.size.width,CGRectGetMaxY(trackView.frame));
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_baseView.center = CGPointMake(_baseView.center.x, _centerY);
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}
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}
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}
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-(void)start{
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if (_timer) {
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return;
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}
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_timer = [NSTimer timerWithTimeInterval:0.01 target:self selector:@selector(startAction) userInfo:nil repeats:YES];
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[[NSRunLoop currentRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];
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}
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- (void)pause{
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[_timer invalidate];
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_timer = nil;
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}
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- (void)stop{
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[_timer invalidate];
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_timer = nil;
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for (LXDanMuTrackView *trackView in _trackArray) {
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[trackView cleanTrack];
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}
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}
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- (void)destory{
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[_timer invalidate];
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_timer = nil;
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for (LXDanMuTrackView * trackView in _trackArray) {
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[trackView cleanTrack];
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[trackView removeFromSuperview];
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}
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[_trackArray removeAllObjects];
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[_baseView removeFromSuperview];
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_trackSpeedArray = nil;
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_superView = nil;
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_baseView = nil;
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_trackArray = nil;
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}
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-(void)startAction{
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for (int i = 0; i < _trackArray.count; i++) {
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//执行轨道定时器方法
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LXDanMuTrackView *trackView = _trackArray[i];
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[trackView moveViewWithSpeed:[_trackSpeedArray[i] floatValue]];
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}
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}
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-(UIView *)baseView{
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if (!_baseView) {
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_baseView = [[UIView alloc] initWithFrame:CGRectMake(0, 0,_trackWidth, 0)];
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}
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return _baseView;
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}
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//自定义的view（注意，最高不能超过轨道的高，会出问题）
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- (void)appendDanMuWithCustomView:(UIView *)customView toTrackIndex:(NSInteger)trackIndex
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{
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//trackIndex 插入弹幕的轨道（为-1则代表自动寻找最不拥挤的轨道插入）
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NSInteger realTrackIndex = trackIndex;
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if (realTrackIndex == -1) {
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realTrackIndex = [self findTheMinTotalWidthTrack];
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}
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LXDanMuTrackView *trackView = _trackArray[realTrackIndex];
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[trackView appendWithCustomView:customView];
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}
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/**
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找到最短右侧出屏幕和等待数组总长度最短的轨道序号
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@return 轨道的序号
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*/
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- (int)findTheMinTotalWidthTrack
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{
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LXDanMuTrackView *firstTrackView = _trackArray[0];
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int minWidthIndex = 0;
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float minWidth = [firstTrackView rightOutScreenWidth];
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for (int i = 0; i<_trackArray.count; i++)
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{
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LXDanMuTrackView *trackView = _trackArray[i];
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float trackRightOutScreenWidth = [trackView rightOutScreenWidth];
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if (trackRightOutScreenWidth < minWidth)
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{
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minWidth = trackRightOutScreenWidth;
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minWidthIndex = i;
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}
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}
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return minWidthIndex;
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}
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@end
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