键盘响应缓慢的ios

我创建动态画面和动态创建的文本字段当我触摸文本字段，并开始写，然后我的键盘响应速度慢和花费近3-4秒时，在屏幕上显示一个字符。我该如何解决这个问题？提前致谢。键盘响应缓慢的ios

- (BOOL) textFieldShouldBeginEditing:(UITextField *)textField 
{ 
    NSInteger componentType; 
    BOOL isEditable = YES; 


    for (int i = 0; i < self.screenComponentData.count; i++) 
    { 
     if ([self.keyboardType[i] intValue] == NUMERIC) 
     { 
      [textField setKeyboardType:UIKeyboardTypeNumberPad]; 

     } 
     else if([self.keyboardType[i] intValue] == ALPHA) 
     { 
      [textField setKeyboardType:UIKeyboardTypeAlphabet]; 

     } 
     else if([self.keyboardType[i] intValue] == ALPHANUMERIC) 
     { 
      [textField setKeyboardType:UIKeyboardTypeDefault]; 
     } 

     NSString *str = [self.entityMap objectAtIndex:i]; 
//  str = [str substringFromIndex:2]; 
     if (textField.tag == [str intValue]) 
     { 
      componentType = [self.screenComponentData[i][3] intValue]; 
      if ([self.screenComponentData[i][7] characterAtIndex:27] == NON_EDITABLE) 
      { 
       isEditable = NO; 
      } 
      break; 
     } 
    } 

    if (componentType == DATE_PICKER || componentType == TIME_PICKER || componentType == VALUE_PICKER) 
    { 
     [self textFieldTouched:textField]; 
     return NO; 
    } 
    else if(isEditable == NO) 
    { 
     //Dont show picker & dont allow user to edit too.SHOW DEFAULT TEXT 
     return NO; 
    } 
    else 
    { 
     return YES; 
    } 
} 


- (void) textFieldTouched:(UITextField *)textField 
{ 
    NSArray *test1; 
    NSArray *compoType; 
    NSArray *tag_Table_Name; //<--table to where to get data 
    for (int index = 0; index < self.componentType.count ; index++) { 
// pooja's code' 
      if (textField.tag ==60 ||textField.tag ==865 ||textField.tag ==1202 || textField.tag==48) 
      { 

      tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 


      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
     test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@",tag_Table_Name[0][0]]]; 

       if (self.textField.tag== 61) { 
         [email protected]""; 
       } 

     }else if (textField.tag==61){ 

     tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 

      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
      test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@ WHERE COL2='%@'",tag_Table_Name[0][0],self.codeString]]; 

     }else if (textField.tag==1159){ 

      tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 

      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
      test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@",tag_Table_Name[0][0]]]; 


     }else if (textField.tag ==1760){ 

      tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 


      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
      test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@",tag_Table_Name[0][0]]]; 


     }else if (textField.tag==55){ 

      tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 

      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
      test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@ WHERE COL2='%@'",tag_Table_Name[0][0],self.codeString]]; 

     }else if (textField.tag==861){ 

      tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 

      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
      test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@ WHERE COL2='%@'",tag_Table_Name[0][0],self.codeString]]; 

     }else if (textField.tag==108 ||textField.tag == 1154 ||self.textField.tag==66){ 

      tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 

      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
      test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@",tag_Table_Name[0][0]]]; 

     }else if (textField.tag==1153){ 

      tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 

      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
      test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@",tag_Table_Name[0][0]]]; 

     } 

     else{ 
      tag_Table_Name=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL13 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 

      compoType=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL3 FROM %@ WHERE COL0='%@' and COL2='%ld'",TBSYS0001,self.screenId,(long)textField.tag]]; 
      test1=[DBOperator getDataForQuery:[NSString stringWithFormat:@"SELECT COL1 FROM TB%@",tag_Table_Name[0][0]]]; 
     } 

     if (textField.tag == 64){ 


      self.tagForFollowUpDate = 64; 
      self.configure.getFollowConfigDate = self.tagForFollowUpDate; 
     } 

     if (textField.tag == 45){ 


      self.tagForDOB = 45; 
      self.configure.getDOB = self.tagForDOB; 
     } 
    } 

     self.textfieldTAG = textField.tag; 

    NSInteger compo=[compoType[0][0]intValue]; 
    // NSLog(@"COMPO->%d",compo); 

    switch (compo) { 
     case DATE_PICKER: 
      [self displayDatePicker:textField]; 
      break; 

     case TIME_PICKER: 
      [self displayTimePicker:textField]; 
      break; 

     case VALUE_PICKER: 
     { 
      if (self.popOver != nil && [self.popOver isPopoverVisible]) 
      { 
       [self.popOver dismissPopoverAnimated:YES]; 
      } 



      RMPickerViewController *pickerVC = [RMPickerViewController pickerController]; 
      pickerVC.delegate = self; 
      pickerVC.backgroundColor = [UIColor whiteColor]; 
      //   pickerVC.tintColor = [UIColor yellowColor]; 
      //   pickerVC.selectedBackgroundColor = [UIColor yellowColor]; 

      if (self.commanArray != nil && self.commanArray.count > 0) 
      { 
       [self.commanArray removeAllObjects]; 
      } 
      [self.commanArray addObjectsFromArray:[self getdropListDataWithValue:test1]]; //<--- Value Picker 
      [pickerVC showFromRect:textField.frame inView:self.scrollView]; 

      break; 
     } 

     default: 
     { 
      //To get the values for making the syncData string 
      for (int i = 0; i < self.screenComponentData.count; i++) 
      { 
       NSString *str=[self.entityMap objectAtIndex:i]; 
       //  str = [str substringFromIndex:2]; 
       if (textField.tag == [str intValue]) 
       { 
        [self.valueArray replaceObjectAtIndex:i withObject:textField.text]; 
        [self.savingArray replaceObjectAtIndex:i withObject:textField.text]; 

        break; 
       } 
      } 

      [textField setKeyboardType:UIKeyboardTypeDefault]; 

      break; 
     } 
    }//end of switch case; 
; 

}// end of textFieldTouched

来源

2014-12-03 Ravi Khatri

您是使用真实设备还是模拟器？你可以在你创建并填写文本字段的地方发布一些代码吗？ – 2014-12-03 06:58:15

另外，如果您实施任何，请发布文本字段委托方法的代码。 – 2014-12-03 07:00:07

请发布shouldChangeCharactersInRange委托方法的代码。您在此委托方法中做了很长时间的处理，因此发生这种情况是其中一个原因。 – 2014-12-03 07:02:17

确保主线程不忙，即可能是后台任务正在运行，这会减慢进程。它可能不是textfield的问题。

尝试检查一些循环或在后台工作的同步任务..

来源

2014-12-03 11:36:44

键盘响应缓慢的ios

回答

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