diff --git a/ios/RCTBEEPickerManager/RCTBEEPickerManager.m b/ios/RCTBEEPickerManager/RCTBEEPickerManager.m
index 164815219b0a072923f3d0766fe3076c51c20db5..7820e365a1e48195e5262ad5a5c1265dfb83843a 100644
--- a/ios/RCTBEEPickerManager/RCTBEEPickerManager.m
+++ b/ios/RCTBEEPickerManager/RCTBEEPickerManager.m
@@ -22,16 +22,26 @@
 
 @synthesize bridge = _bridge;
 
+- (dispatch_queue_t)methodQueue
+{
+    return dispatch_get_main_queue();
+}
+
++ (BOOL)requiresMainQueueSetup
+{
+    return YES;
+}
+
 RCT_EXPORT_MODULE();
 
 RCT_EXPORT_METHOD(_init:(NSDictionary *)indic){
-    
+
     dispatch_async(dispatch_get_main_queue(), ^{
         [[UIApplication sharedApplication].keyWindow endEditing:YES];
     });
-    
+
     self.window = [UIApplication sharedApplication].keyWindow;
-    
+
     NSString *pickerConfirmBtnText=indic[@"pickerConfirmBtnText"];
     NSString *pickerCancelBtnText=indic[@"pickerCancelBtnText"];
     NSString *pickerTitleText=indic[@"pickerTitleText"];
@@ -45,63 +55,63 @@ RCT_EXPORT_METHOD(_init:(NSDictionary *)indic){
     NSString *pickerToolBarFontSize=[NSString stringWithFormat:@"%@",indic[@"pickerToolBarFontSize"]];
     NSString *pickerFontSize=[NSString stringWithFormat:@"%@",indic[@"pickerFontSize"]];
     NSArray *pickerFontColor=indic[@"pickerFontColor"];
-    
+
     id pickerData=indic[@"pickerData"];
-    
+
     NSMutableDictionary *dataDic=[[NSMutableDictionary alloc]init];
-    
+
     dataDic[@"pickerData"]=pickerData;
-    
+
     [self.window.subviews enumerateObjectsUsingBlock:^(__kindof UIView * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
-        
+
         if ([obj isKindOfClass:[BzwPicker class]]) {
             dispatch_async(dispatch_get_main_queue(), ^{
-                
+
                 [obj removeFromSuperview];
             });
         }
-        
+
     }];
-    
+
     if ([[UIDevice currentDevice].systemVersion doubleValue] >= 9.0 ) {
         self.height=250;
     }else{
         self.height=220;
     }
-    
+
     self.pick=[[BzwPicker alloc]initWithFrame:CGRectMake(0, SCREEN_HEIGHT, SCREEN_WIDTH, self.height) dic:dataDic leftStr:pickerCancelBtnText centerStr:pickerTitleText rightStr:pickerConfirmBtnText topbgColor:pickerToolBarBg bottombgColor:pickerBg leftbtnbgColor:pickerCancelBtnColor rightbtnbgColor:pickerConfirmBtnColor centerbtnColor:pickerTitleColor selectValueArry:selectArry weightArry:weightArry pickerToolBarFontSize:pickerToolBarFontSize pickerFontSize:pickerFontSize pickerFontColor:pickerFontColor];
-    
-    
+
+
     _pick.bolock=^(NSDictionary *backinfoArry){
-        
+
         dispatch_async(dispatch_get_main_queue(), ^{
-            
+
             [self.bridge.eventDispatcher sendAppEventWithName:@"pickerEvent" body:backinfoArry];
         });
     };
-    
+
     dispatch_async(dispatch_get_main_queue(), ^{
-        
+
         [self.window addSubview:_pick];
     });
-    
+
 }
 
 RCT_EXPORT_METHOD(show){
     if (self.pick) {
-        
+
         dispatch_async(dispatch_get_main_queue(), ^{
             [UIView animateWithDuration:.3 animations:^{
-                
+
                 [_pick setFrame:CGRectMake(0, SCREEN_HEIGHT-self.height, SCREEN_WIDTH, self.height)];
-                
+
             }];
         });
     }return;
 }
 
 RCT_EXPORT_METHOD(hide){
-    
+
     if (self.pick) {
         dispatch_async(dispatch_get_main_queue(), ^{
             [UIView animateWithDuration:.3 animations:^{
@@ -122,13 +132,13 @@ RCT_EXPORT_METHOD(select: (NSArray*)data){
 }
 
 RCT_EXPORT_METHOD(isPickerShow:(RCTResponseSenderBlock)getBack){
-    
+
     if (self.pick) {
-        
+
         CGFloat pickY=_pick.frame.origin.y;
-        
+
         if (pickY==SCREEN_HEIGHT) {
-            
+
             getBack(@[@YES]);
         }else
         {