Question

抱歉我的英文。我花了几倍的时间尝试修复我的问题，但我无法做到。我有listView，在这个列表视图中为一些元素创建微调器。 Spinner在适配器中创建。我不能得到价值微调。它对我来说很难。请healp

我的适配器

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:orientation="vertical"
    android:layout_height="match_parent">

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_marginBottom="5dp"
        android:layout_height="wrap_content">

        <RelativeLayout
            android:id="@+id/bgchilddevice"
            android:layout_width="match_parent"
            android:layout_weight="0.3"
            android:layout_marginLeft="5dp"
            android:background="#26ffffff"
            android:layout_marginRight="2.5dp"
            android:layout_height="60dp">

            <TextView
                android:id="@+id/textChild"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textColor="#fff"
                android:textSize="18dp"
                android:layout_centerVertical="true"
                android:layout_centerHorizontal="true" />
        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/bg_button_screen"
            android:layout_weight="0.9"
            android:layout_marginRight="5dp"
            android:background="#4fcc54"
            android:layout_width="match_parent"
            android:layout_marginLeft="2.5dp"
            android:layout_height="60dp">

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@mipmap/check"
                android:id="@+id/imageView6"
                android:layout_centerVertical="true"
                android:layout_centerHorizontal="true" />
        </RelativeLayout>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/container"
        android:layout_width="match_parent"
        android:orientation="horizontal"
        android:background="#26ffffff"
        android:layout_height="wrap_content">

        <LinearLayout
            android:id="@+id/spinnerL"
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_alignParentTop="true"
            android:layout_weight="0.2"
            android:layout_centerHorizontal="true" />

        <RelativeLayout
            android:id="@+id/spinnerOpen"
            android:layout_width="match_parent"
            android:layout_marginRight="5dp"
            android:layout_weight="0.8"
            android:layout_height="match_parent">

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:id="@+id/spinnerImage"
                android:layout_centerVertical="true"
                android:layout_centerHorizontal="true" />
        </RelativeLayout>


    </LinearLayout>

</LinearLayout>

来自适配器的我的xml

create.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {

        for(int i = 0; i < listView.getAdapter().getCount(); i++ ) {

                    for(int j = 0; j < listView.getChildCount(); j++ ) {

                        View _mainView = listView.getChildAt(j);

                        LinearLayout _linearLayout = (LinearLayout) _mainView.findViewById(R.id.spinnerL);

                        Spinner spinner = (Spinner) _linearLayout.getChildAt(0);

                        String selection = (String) spinner.getSelectedItem();

                        Log.e("spinner device", selection);
                    }

                }
    }

});

我尝试获取微调元素

FATAL EXCEPTION: main java.lang.NullPointerException

我有

Spinner spinner = (Spinner) _linearLayout.getChildAt(0);

在Spinner spinner = (Spinner) _linearLayout.getChildAt(0);行

我尝试写

Spinner spinner = (Spinner) _linearLayout.getChildAt(1);

Spinner spinner = (Spinner) _linearLayout.getChildAt(2);

Spinner spinner = (Spinner) _linearLayout.getChildAt(3);

select sum(case value1 when 99999 then valueA else 0 end) as [Value 1], (sum(case value2 when 99999 then valueB else 0 end)) / (sum(case value1 when 99999 then valueA else 1 end)) as [Value 2]

错误

Answer 1

为什么不将findViewById()用于微调器？

Spinner spinner =(Spinner) findViewById(R.id.spinnerL);
String value = spinner.getSelectedItem().toString();

Answer 2

我不知道它是不是坏代码，我尝试写这样的和它的工作!!!

setInterval(function() {
    if (!$('#clients_carousel ul').is(':animated')) {
      var fWidth = parseInt($('#clients_carousel ul li:first').outerWidth(true), 10);
      var lIndent = parseInt($('#clients_carousel ul').css("left"), 10);
      if (fWidth < Math.abs(lIndent)) {
        $('#clients_carousel ul li:last').after($('#clients_carousel ul li:first'));
        var newIndent = lIndent + fWidth;
        $('#clients_carousel ul').css('left', newIndent + 'px');
        lIndent = newIndent;
      }
      $('#clients_carousel ul').animate({
        left: lIndent - 5
      }, 40, "linear");
    }
  }, 41);

无法从listview获取值微调器

2 个答案: