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版本迭代需要集成百度地圖,產品需求是每個大頭針上方都需要固定展示大頭針先關的信息,而在集成過程中,如果通過百度原裝方法點擊大頭針,彈出氣泡,會出現(xiàn)如下幾個問題:
1.可以通過[mapView selectAnnotation:annotation animated:YES]方法在初始化時顯示大頭針氣泡,但是從方法中很容易的看到,如果添加多個大頭針,多個都需要初始化展示氣泡,而它只能展示最后一個添加大頭針的氣泡,無法實現(xiàn)產品的需求
2.點擊大頭針,彈出氣泡,點擊第二個時第一個大頭針的氣泡會消失,歸結起來就是使用氣泡的方式顯示大頭針相關信息只會顯示一條,不能同時顯示多條信息
而針對產品的需求,需要顯示多條大頭針信息,百度地圖sdk原裝方法行不通,通過查閱相關資料,可以將大頭針和氣泡封裝成一個整體,統(tǒng)一當成大頭針使用,并取消點擊大頭針彈出氣泡的方法,這樣有一個小問題就是會出現(xiàn)大頭針偏移的問題,需要用戶根據(jù)需要自己調整大頭針顯示位置,設置偏移量;而如果需要點擊大頭針進行相關的操作,可以通過在大頭針上方添加一個button,設定tag值綁定點擊事件,下面是部分代碼,可以參考:
在百度地圖的代理方法中創(chuàng)建封裝大頭針
- (BMKAnnotationView *)mapView:(BMKMapView *)mapView viewForAnnotation:(id <BMKAnnotation>)annotation
{
if ([annotation isKindOfClass:[BMKPointAnnotation class]]) {
BMKPinAnnotationView *newAnnotationView = [[BMKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"myAnnotation"];
newAnnotationView.backgroundColor = [UIColor clearColor];
newAnnotationView.p_w_picpath = [UIImage p_w_picpathNamed:@"qiP.png"]; //設置大頭針占位圖片
newAnnotationView.frame = CGRectMake(-70, -35, 140, 70); //占位圖片為空,需要強制設置大頭針的范圍
newAnnotationView.userInteractionEnabled = YES;
newAnnotationView.enabled = YES;
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 0, 0)];
//氣泡view
newAnnotationView.paopaoView = [[BMKActionPaopaoView alloc] initWithCustomView:view];
UIImageView *paoPaoImage = [[UIImageView alloc]init];
paoPaoImage.frame = CGRectMake(-45, -35, 140, 35);
paoPaoImage.p_w_picpath = [UIImage p_w_picpathNamed:@"qiPao.png"];
[newAnnotationView addSubview:paoPaoImage];
//氣泡view上大頭針的信息
UILabel *busNameLabel = [[UILabel alloc]initWithFrame:CGRectMake(-35, -35, 50, 30)];
busNameLabel.text =busNameStr;
busNameLabel.textColor = [UIColor whiteColor];
busNameLabel.backgroundColor = [UIColor clearColor];
[newAnnotationView addSubview:busNameLabel];
UILabel *totalNumLab = [[UILabel alloc]initWithFrame:CGRectMake(25, -35, 70, 30)];
totalNumLab.text = bustotalNum;
totalNumLab.textAlignment = NSTextAlignmentCenter;
totalNumLab.textColor = [UIColor colorWithRed:245.0/255 green:153.0/255 blue:38.0/255 alpha:1];
totalNumLab.backgroundColor = [UIColor clearColor];
[newAnnotationView addSubview:totalNumLab];
UIImageView *schoolBusImage = [[UIImageView alloc]init];
schoolBusImage.frame = CGRectMake(0, 0, 50, 50);
schoolBusImage.p_w_picpath = [UIImage p_w_picpathNamed:@"schoolBus.png"];
[newAnnotationView addSubview:schoolBusImage];
//點擊事件的button
UIButton *backgroundBtn = [UIButton buttonWithType:UIButtonTypeCustom];
backgroundBtn.frame = CGRectMake(-15, -10, 70, 70);
backgroundBtn.tag = busTag;
[newAnnotationView addSubview:backgroundBtn];
[backgroundBtn addTarget:self action:@selector(backgroundBtnClick:) forControlEvents:UIControlEventTouchUpInside];
return newAnnotationView;
}
return nil;
}
創(chuàng)建大頭針,并設置大頭針的數(shù)據(jù),必須依次添加大頭針到地圖上,不能整體添加
for (int i = 0; i < self.schoolLeaderArr.count; i++) {
double schoolBusLatitude = [self.schoolLeaderArr[i][@"latitude"] doubleValue];
double schoolBusLongitude = [self.schoolLeaderArr[i][@"longitude"] doubleValue];
schoolBusLocation = CLLocationCoordinate2DMake(schoolBusLatitude, schoolBusLongitude);
schoolBusAnnotation = [[BMKPointAnnotation alloc]init];
schoolBusAnnotation.coordinate = schoolBusLocation;
busNameStr = [NSString stringWithFormat:@"%@",self.schoolLeaderArr[i][@"busName"]];
bustotalNum = [NSString stringWithFormat:@"%@/%@人",[NSString stringWithFormat:@"%@",self.schoolLeaderArr[i][@"upNum"]],[NSString stringWithFormat:@"%@",self.schoolLeaderArr[i][@"totalNum"]]];
busTag = [self.schoolLeaderArr[i][@"busId"] intValue];
[self.annotationArr addObject:schoolBusAnnotation];
//創(chuàng)建一個大頭針,添加一個,防止統(tǒng)一添加代理方法里面數(shù)據(jù)混亂
[self.mapView addAnnotation:schoolBusAnnotation];
}
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