ios - 数据大造成的界面卡住问题

问题描述

**我点击添加任务，然后再点击cell进入详情，发现需要卡顿一段时间才能进入详情，我添加任务做的操作是创建textView，让他成为第一相应，然后创建取消和添加俩个按钮，然后改变父视图的约束，以及隐藏添加任务的按钮，然后设置tableview的内边距以及设置让导航栏隐藏，这个问题和https://segmentfault.com/q/10...里面的问题相似问题在于数据少的时候不存在卡顿问题，但是数据多的话整个界面就会被卡死

望大神不吝赐教，由是感激**

具体代码如下

[addCard setTitle:@'添加任务' forState:UIControlStateNormal];[addCard setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];[addCard setTitleColor:[UIColor lightGrayColor] forState:UIControlStateHighlighted];addCard.titleLabel.font = [UIFont systemFontOfSize:15];addCard.backgroundColor = [UIColor clearColor];self.addCards = addCard;// [addCard addTarget:self action:@selector(addCard:) forControlEvents:UIControlEventTouchUpInside];//使用ReactiveCocoa处理点击事件，相当于上面的addTarget:方法//addCard点击事件[[addCard rac_signalForControlEvents:UIControlEventTouchUpInside] subscribeNext:^(id x) { NSLog(@'%ld',(unsigned long)self.unNetArr.count);self.yesOrNo = NO; //隐藏addCard addCard.alpha = 0; //输入框 UITextView *textView = ({UITextView *view = [UITextView new];[footer addSubview:view];[view makeConstraints:^(MASConstraintMaker *make) { make.left.equalTo(10); make.top.equalTo(3); make.right.equalTo(-10); make.bottom.equalTo(-44+2);}];//因为footer变大，所以改变tableView的contentInsetlistTableView.contentInset = UIEdgeInsetsMake(46, 0, 88, 0);view.font = [UIFont systemFontOfSize:15];//立即刷新视图[self layoutIfNeeded];view; }); self.textView = textView;//初始化add按钮 UIButton *add = ({UIButton *view = [UIButton new];view.contentHorizontalAlignment=UIControlContentHorizontalAlignmentCenter;[view setTitle:NSLocalizedString(@'add', nil) forState:UIControlStateNormal];[view setTitleColor:Global_trelloBlue forState:UIControlStateNormal];[view setTitleColor:[UIColor lightGrayColor] forState:UIControlStateHighlighted];[view setTitleEdgeInsets:UIEdgeInsetsMake(0, -40, 0, -80)];[view.titleLabel setFont:[UIFont fontWithName:@'Arial-Bold' size:18]];view.titleLabel.font = [UIFont systemFontOfSize:15];[footer addSubview:view];[view makeConstraints:^(MASConstraintMaker *make) { make.right.equalTo(0); make.bottom.equalTo(-1); make.width.equalTo(120);}];[view sizeToFit];//初始化后隐藏(为了动画效果)view.alpha = 0;//立即刷新[self layoutIfNeeded];//add点击事件，创建新的tast[[view rac_signalForControlEvents:UIControlEventTouchUpInside] subscribeNext:^(id x) {//textView判空 if (![textView.text isEqualToString:@'']) {self.yesOrNo = NO;AddTaskApi *api = AddTaskApi.new;//如果在没有task的列添加新的task，t_sort传0api.t_sort = @(0);//都上传0api.t_taskContent = textView.text;api.t_projectId = @(_project_id.integerValue);//当前列的idapi.t_panel_id = @(listTableView.model.id.integerValue);NSLog(@'<><>%@',_project_id);//判断是否有网[GLobalRealReachability reachabilityWithBlock:^(ReachabilityStatus status) { switch (status) {case RealStatusNotReachable:{ NewTasklistModel *model = [[NewTasklistModel alloc]init]; model.unloading = YES; model.t_taskContent = textView.text; textView.text = nil; model.t_sort = @'0'; model.t_id = [_project_id integerValue]; model.t_panel_id = listTableView.model.id; model.page = idx; [listTableView.model.task addObject:model]; [self.unNetArr addObject:model]; NSLog(@'%ld',(unsigned long)self.unNetArr.count); //插入行 [listTableView insertRow:(listTableView.model.task.count-1)inSection:0 withRowAnimation: UITableViewRowAnimationBottom]; //计算rowHeight CGFloat rowHeight = [self tableView:listTableView heightForRowAtIndexPath:[NSIndexPath indexPathForRow:listTableView.model.task.count-1 inSection:0]]; //根据当前列高度和rowHeight决定列高度是否增加 //updateConstraints:方法更新autolayout [listView updateConstraints:^(MASConstraintMaker *make) {//增加新的rowHeight后list超出允许最大高度，之前不满最大高度if (listTableView.cellTotalHeight > (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44) && (listTableView.cellTotalHeight-rowHeight) < (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)) { make.height.equalTo(listView.yyHeight+((kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)-(listTableView.cellTotalHeight-rowHeight)));}//增加新的rowHeight后list没有超过允许最大高度if (listTableView.cellTotalHeight <= (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)) { make.height.equalTo(listView.yyHeight+rowHeight);} }]; //tableView滚动到最底部，显示新添加行 [listTableView scrollToRow:listTableView.model.task.count-1 inSection:0 atScrollPosition:UITableViewScrollPositionBottom animated:NO]; //autolayout动画 [self layoutIfNeeded]; // [listTableView reloadRow:listTableView.model.task.count-1 inSection:0 withRowAnimation:UITableViewRowAnimationBottom]; //改变原列的标题数量 UITextField *sourceListTableHeaderTF=(UITextField *)[self viewWithTag:[listTableView.model.id integerValue]]; sourceListTableHeaderTF.text=[NSString stringWithFormat:@'%@ %ld',listTableView.model.name,(unsigned long)listTableView.model.task.count]; break;}case RealStatusUnknown:{ NewTasklistModel *model = [[NewTasklistModel alloc]init]; model.unloading = YES; model.t_taskContent = textView.text; textView.text = nil; model.t_sort = @'0'; model.t_id = [_project_id integerValue]; model.t_panel_id = listTableView.model.id; model.page = idx; [listTableView.model.task addObject:model]; [self.unNetArr addObject:model]; //插入行 [listTableView insertRow:(listTableView.model.task.count-1)inSection:0 withRowAnimation: UITableViewRowAnimationBottom]; //计算rowHeight CGFloat rowHeight = [self tableView:listTableView heightForRowAtIndexPath:[NSIndexPath indexPathForRow:listTableView.model.task.count-1 inSection:0]]; //根据当前列高度和rowHeight决定列高度是否增加 //updateConstraints:方法更新autolayout [listView updateConstraints:^(MASConstraintMaker *make) {//增加新的rowHeight后list超出允许最大高度，之前不满最大高度if (listTableView.cellTotalHeight > (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44) && (listTableView.cellTotalHeight-rowHeight) < (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)) { make.height.equalTo(listView.yyHeight+((kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)-(listTableView.cellTotalHeight-rowHeight)));}//增加新的rowHeight后list没有超过允许最大高度if (listTableView.cellTotalHeight <= (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)) { make.height.equalTo(listView.yyHeight+rowHeight);} }]; //tableView滚动到最底部，显示新添加行 [listTableView scrollToRow:listTableView.model.task.count-1 inSection:0 atScrollPosition:UITableViewScrollPositionBottom animated:NO]; //autolayout动画 [self layoutIfNeeded];//改变原列的标题数量 UITextField *sourceListTableHeaderTF=(UITextField *)[self viewWithTag:[listTableView.model.id integerValue]]; sourceListTableHeaderTF.text=[NSString stringWithFormat:@'%@ %ld',listTableView.model.name,(unsigned long)listTableView.model.task.count]; break;}default: //发起请求 [api startWithCompletionBlockWithSuccess:^(YTKBaseRequest *request) {SLog(@'<><>>>%@',request);NewTasklistModel *model = request.responseModel;model.unloading = NO; //存在即失败（接口定义，只在失败时才返回status值）if (model.status) {}else { //添加成功 textView.text = nil; //更新数据源 [listTableView.model.task addObject:model]; //插入行 [listTableView insertRow:(listTableView.model.task.count-1)inSection:0 withRowAnimation: UITableViewRowAnimationBottom]; //计算rowHeight CGFloat rowHeight = [self tableView:listTableView heightForRowAtIndexPath:[NSIndexPath indexPathForRow:listTableView.model.task.count-1 inSection:0]]; //根据当前列高度和rowHeight决定列高度是否增加 //updateConstraints:方法更新autolayout [listView updateConstraints:^(MASConstraintMaker *make) {//增加新的rowHeight后list超出允许最大高度，之前不满最大高度if (listTableView.cellTotalHeight > (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44) && (listTableView.cellTotalHeight-rowHeight) < (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)) {make.height.equalTo(listView.yyHeight+((kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)-(listTableView.cellTotalHeight-rowHeight)));} //增加新的rowHeight后list没有超过允许最大高度if (listTableView.cellTotalHeight <= (kTotalCellMaxHeight+NavAndStatusBarHeight-_keyboardHeight-44)) {make.height.equalTo(listView.yyHeight+rowHeight);} }]; //tableView滚动到最底部，显示新添加行 [listTableView scrollToRow:listTableView.model.task.count-1 inSection:0 atScrollPosition:UITableViewScrollPositionBottom animated:NO]; [self layoutIfNeeded]; //autolayout动画 //改变原列的标题数量 UITextField *sourceListTableHeaderTF=(UITextField *)[self viewWithTag:[listTableView.model.id integerValue]]; sourceListTableHeaderTF.text=[NSString stringWithFormat:@'%@ %ld',listTableView.model.name,(unsigned long)listTableView.model.task.count];} } failure:^(YTKBaseRequest *request) {}]; break; }}]; }else{self.yesOrNo = YES;[footer updateConstraints:^(MASConstraintMaker *make) { make.height.equalTo(44);}];//list减去footer增加的高度(在这里做是为了动效)[listView updateConstraints:^(MASConstraintMaker *make) { make.height.equalTo(listView.yyHeight-44);}];//tableView的contentInset还原listTableView.contentInset = UIEdgeInsetsMake(46, 0, 44, 0);//隐藏textViewtextView.alpha = 0;[UIView animateWithDuration:0.25 animations:^{ //cancel隐藏 view.alpha = 0; //add隐藏 self.cancel.alpha = 0; //addCard显示 addCard.alpha = 1; [self.viewController.navigationController setNavigationBarHidden:NO animated:YES]; [self layoutIfNeeded];}];[textView resignFirstResponder]; }}];view; }); self.addView = add; //初始化cancel按钮 UIView *cancel = ({UIButton *view = [UIButton new];view.contentHorizontalAlignment=UIControlContentHorizontalAlignmentCenter;[view setTitle:NSLocalizedString(@'cancel', nil) forState:UIControlStateNormal];[view setTitleColor:Global_trelloBlue forState:UIControlStateNormal];[view.titleLabel setFont:[UIFont fontWithName:@'Arial-Bold' size:18]];[view setTitleColor:[UIColor lightGrayColor] forState:UIControlStateHighlighted];[view setTitleEdgeInsets:UIEdgeInsetsMake(0, -80, 0, -40)];view.titleLabel.font = [UIFont systemFontOfSize:15];[footer addSubview:view];[view makeConstraints:^(MASConstraintMaker *make) { make.left.equalTo(0); make.bottom.equalTo(-1); make.width.equalTo(120);}];[view sizeToFit];view.alpha = 0;[self layoutIfNeeded];//cancel点击事件@weakify(self, view, textView, footer, listView, add, addCard)[[view rac_signalForControlEvents:UIControlEventTouchUpInside] subscribeNext:^(id x) { @strongify(self, view, textView, footer, listView, add, addCard) //footer高度还原 self.yesOrNo = YES; [textView resignFirstResponder]; // list减去footer增加的高度(在这里做是为了动效) [footer updateConstraints:^(MASConstraintMaker *make) { make.height.equalTo(44); }]; [listView updateConstraints:^(MASConstraintMaker *make) { make.height.equalTo(listView.yyHeight); }]; // tableView的contentInset还原 listTableView.contentInset = UIEdgeInsetsMake(46, 0, 44, 0); // 隐藏textView textView.alpha = 0; [UIView animateWithDuration:0.5 animations:^{ //cancel隐藏 view.alpha = 0; //add隐藏 add.alpha = 0; //addCard显示 addCard.alpha = 1; [self.viewController.navigationController setNavigationBarHidden:NO animated:NO]; [self layoutIfNeeded]; }]; }];view;

问题解答

你贴这么长的代码，怎么看啊。这种问题的话，你应该看是哪里占用了比较长的时间。然后解决啊。个人觉得tableView的刷新次数可能比较多的话，会影响性能，你可以看下，是不是tableView的代理方法在一直被调用呢？

。。。。。。。

代码写法逼格高的都看不懂了……

问题终于解决了 谢谢你们

响应式编程？