Question

我正在使用sencha touch 2.0创建应用程序

我正在使用导航视图

我按升序数学测验创建数字排列

我的问题是当我运行应用程序时它第一次工作正常但是当我点击后退按钮并且老化进入同一视图时它会显示旧数字

突出的是，按钮文本上出现了新的数字，但是当我点击按钮并获取文本时，它会显示旧数字

我的代码

sequence_user_answer="";
sequence_answer="";
sequence_number1=this.getRandomNumber(99,10);
sequence_number2=this.getRandomNumber(99,10);
sequence_number3=this.getRandomNumber(99,10);
       if(sequence_number1==sequence_number2)
       {
            while(sequence_number1==sequence_number2)
            {
                sequence_number2=this.getRandomNumber(99,10);
            }
       }
       else if(sequence_number3==sequence_number1 || sequence_number3==sequence_number1)
       {
            while(sequence_number3==sequence_number2 || sequence_number3==sequence_number1)
            {
                sequence_number3= this.getRandomNumber(99,10);
            }
       }


       var sequencenumber1=Ext.getCmp('NumberSequence1');
       sequencenumber1.setHtml(sequence_number1);

       var sequencenumber2=Ext.getCmp('NumberSequence2');
       sequencenumber2.setHtml(sequence_number2);
      // alert("two");

       var sequencenumber3=Ext.getCmp('NumberSequence3');
       sequencenumber3.setHtml(sequence_number3);

       var label1=Ext.getCmp('lblsequencenumber1');
       label1.setHtml("");

       var label2=Ext.getCmp('lblsequencenumber2');
       label2.setHtml("");

       var label3=Ext.getCmp('lblsequencenumber3');
       label3.setHtml("");

       if(sequence_number1>sequence_number2)
       {
            if(sequence_number1>sequence_number3)
            {

                if(sequence_number2>sequence_number3)
                {
                    sequence_answer=sequence_answer+sequence_number3;
                    sequence_answer=sequence_answer+sequence_number2;

                }
                else
                {
                    sequence_answer=sequence_answer+sequence_number2;
                    sequence_answer=sequence_answer+sequence_number3;

                }
                sequence_answer=sequence_answer+sequence_number1;
            }
            else
            {

                sequence_answer=sequence_answer+sequence_number2;
                sequence_answer=sequence_answer+sequence_number1;
                sequence_answer=sequence_answer+sequence_number3;
            }
       }
       else
       {
            if(sequence_number2>sequence_number3)
            {
                if(sequence_number1>sequence_number3)
                {
                    sequence_answer=sequence_answer+sequence_number3;
                    sequence_answer=sequence_answer+sequence_number1;
                }
                else
                {
                    sequence_answer=sequence_answer+sequence_number1;
                    sequence_answer=sequence_answer+sequence_number3;
                }
                sequence_answer=sequence_answer+sequence_number2;
            }
            else
            {
                sequence_answer=sequence_answer+sequence_number2;
                sequence_answer=sequence_answer+sequence_number1;
                sequence_answer=sequence_answer+sequence_number3;
            }
       }

按下按钮

getSequenceAnswer:function(selected_button_id)
{
       //alert(selected_button_id);
       alert(selected_button_id.getHtml()); // here it shows me an old value when i go back and enter again to this view
       var ans_audio=Ext.getCmp('answeraudio');
       var que_audio=Ext.getCmp('questionaudio');
       var result=Ext.getCmp('statuslbl');
       if(sequence_count==0)
       {
            var sequence_label1=Ext.getCmp('lblsequencenumber1');
            sequence_label1.setHtml(selected_button_id.getHtml());
            sequence_count++;
            sequence_user_answer=sequence_user_answer+selected_button_id.getHtml();
       }
       else if(sequence_count==1)
       {
            var sequence_label2=Ext.getCmp('lblsequencenumber2');
            sequence_label2.setHtml(selected_button_id.getHtml());
            sequence_count++;
            sequence_user_answer=sequence_user_answer+selected_button_id.getHtml();
       }
       else if(sequence_count==2)
       {
            var sequence_label3=Ext.getCmp('lblsequencenumber3');
            sequence_label3.setHtml(selected_button_id.getHtml());
            sequence_count++;
            sequence_user_answer=sequence_user_answer+selected_button_id.getHtml();

            if(sequence_answer==sequence_user_answer)
            {
                que_audio.setUrl("");
                ans_audio.setUrl('audio/true.mp3');
                ans_audio.play();            
                this.getTrue(result);
                var marks=Ext.getCmp('lblMarks');
                sequence_marks = sequence_marks+2;
                marks.setHtml(sequence_marks);            
                var total=Ext.getCmp('lbltotal');
                sequence_total_marks= sequence_total_marks+2;
                total.setHtml(sequence_total_marks);
            }
            else
            {
                que_audio.setUrl("");
                ans_audio.setUrl('audio/false.mp3');
                ans_audio.play();
                this.getFalse(result);
                var total=Ext.getCmp('lbltotal');
                sequence_total_marks= sequence_total_marks+2;
                total.setHtml(sequence_total_marks);
            }
       }
}

Answer 1

最有可能你可以使用show listener，它在容器显示时调用。编写逻辑以在此动态创建组件。或者，作为另一种选择，您可以重置其中的标签或其他组件数据。

listeners: {
    show: function(list, opts){
        // code to reset  your comp
    }
}

在后退按钮显示旧值后，在导航视图中触摸

1 个答案: