TextView的颜色在微调 [英] TextView Color in the Spinner

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本文介绍了TextView的颜色在微调的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我要的是微调的文字颜色应该当它显示在微调里面,因为它是在微调1和2以及微调的列表的文本颜色应该是黑色作为图片在运行时是白色的。

问题是我能够做到这一点的第2纱厂,但未能做到这一点的第3和第4微调。

如果你能看到3楼和4 Spinner包含的值,但在黑色。我不明白,如果它可用于2纺纱厂则y不是所有4.请帮助我。


这是我的code运行时改变颜色:

 公共类文本//类改变微调的文本颜色
{
    私人TextView的电视= NULL;
    文本(查看spin_adptr)
    {        电视=(TextView中)spin_adptr.findViewById(R.id.textspin);
        tv.setTextColor(Color.WHITE);
    }
}

和我这是怎么调用它:

 公共无效onItemSelected(适配器视图<>母公司,查看ARG1,INT位置,
        长ARG3){
    INT ID = parent.getId();
    文本文本=新文本(spinner1); //颜色的变化(工作)
            文字文本1 =新文本(spinner3); //颜色的变化(错误)
            文字文本2 =新文本(spinner4); //颜色的变化(错误)    开关(ID){
    案例R.id.spinner1:        字符串B = spinner1.getSelectedItem()的toString()。        如果(B!= NULL){
            dbCarHelper.make_pop(二);
        }        清单<串GT;磅= h.getAllLabels();        ArrayAdapter<串GT; dAdapter =新ArrayAdapter<串GT;(这一点,
                R.layout.spin_adptr,磅);        dAdapter.setDropDownViewResource(R.layout.spin_adptr);
        spinner2.setAdapter(dAdapter);        打破;    案例R.id.spinner2:
        文字文本1 =新文本(spinner2); ////颜色的变化(工作)
        字符串= spinner2.getSelectedItem()的toString()。        如果(一个!= NULL){
            dbCarHelper.m_pop(一);
        }        CarHelper C =新CarHelper(getApplicationContext());        清单<串GT;拉布勒= c.getAllLabel();        ArrayAdapter<串GT; dAdaptr =新ArrayAdapter<串GT;(这一点,
                R.layout.spin_adptr,拉布勒);        dAdaptr.setDropDownViewResource(R.layout.spin_adptr);        spinner3.setAdapter(dAdaptr);
        打破;    }    }


解决方案

请命名为spinner_layout一个XML文件,并写入code如下

 <?XML版本=1.0编码=UTF-8&GT?;
< TextView中的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
机器人:ID =@机器人:ID / text1中
风格=机器人:ATTR / spinnerItemStyle
机器人:layout_width =FILL_PARENT
机器人:layout_height =48dp
机器人:重力=center_vertical
机器人:paddingLeft =4DP
机器人:TEXTSIZE =18sp
机器人:文字颜色=#FFFFFF
机器人:ellipsize =金字招牌
机器人:单线=真/>

请命名为spinner_dropdown另一个XML和下面写code

 <?XML版本=1.0编码=UTF-8&GT?;
< TextView中的xmlns:机器人=htt​​p://schemas.android.com/apk/res/android
机器人:ID =@机器人:ID / text1中
风格=机器人:ATTR / spinnerItemStyle
机器人:layout_width =FILL_PARENT
机器人:layout_height =48dp
机器人:重力=center_vertical
机器人:paddingLeft =4DP
机器人:TEXTSIZE =18sp
机器人:文字颜色=#000000
机器人:ellipsize =金字招牌
机器人:单线=真/>

现在更新code如下

  ArrayAdapter<串GT; dAdapter =新ArrayAdapter<串GT;(这一点,
            R.layout.spinner_layout,磅);    dAdapter.setDropDownViewResource(R.layout.spinner_dropdown);

What i want is the Text color of the spinner should be white at runtime when it is displayed inside the Spinner as it is in spinner 1 and 2 and the text color of the list of Spinner should be black as in the picture.

The problem is i am able to do it for the first 2 Spinners but fail to do it for the 3rd and the 4th Spinner.

If you can see the 3rd and 4th Spinner has values but in black. I don't understand that if its possible for 2 spinners then y not for all 4. please help me.

This is my code to change color at runtime:

public class Text                  // class for changing the text color of spinner
{
    private TextView tv = null;
    Text(View spin_adptr)
    {

        tv = (TextView) spin_adptr.findViewById(R.id.textspin);
        tv.setTextColor(Color.WHITE);
    }
}

and this is how i am calling it:

public void onItemSelected(AdapterView<?> parent, View arg1, int position,
        long arg3) {
    int id = parent.getId();
    Text text = new Text(spinner1);   //Change of color (Working)
            Text text1 = new Text(spinner3);  //Change of Color(ERROR)
            Text text2 = new Text(spinner4);  //Change of Color(ERROR)



    switch (id) {
    case R.id.spinner1:

        String b = spinner1.getSelectedItem().toString();

        if (b != null) {
            dbCarHelper.make_pop(b);
        }



        List<String> lb = h.getAllLabels();

        ArrayAdapter<String> dAdapter = new ArrayAdapter<String>(this,
                R.layout.spin_adptr,lb);

        dAdapter.setDropDownViewResource(R.layout.spin_adptr);
        spinner2.setAdapter(dAdapter);

        break;

    case R.id.spinner2:
        Text text1 = new Text(spinner2);   //// Change of color (working)
        String a = spinner2.getSelectedItem().toString();

        if (a != null) {
            dbCarHelper.m_pop(a);
        }

        CarHelper c = new CarHelper(getApplicationContext());

        List<String> lable = c.getAllLabel();

        ArrayAdapter<String> dAdaptr = new ArrayAdapter<String>(this,
                R.layout.spin_adptr,lable);

        dAdaptr.setDropDownViewResource(R.layout.spin_adptr);

        spinner3.setAdapter(dAdaptr);


        break;

    }

    }

解决方案

make a xml file named as spinner_layout and write code as below

  <?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="?android:attr/spinnerItemStyle"
android:layout_width="fill_parent"
android:layout_height="48dp"
android:gravity="center_vertical"
android:paddingLeft="4dp"
android:textSize="18sp"
android:textColor="#FFFFFF"
android:ellipsize="marquee"
android:singleLine="true" />

make another xml named as spinner_dropdown and write below code

 <?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="?android:attr/spinnerItemStyle"
android:layout_width="fill_parent"
android:layout_height="48dp"
android:gravity="center_vertical"
android:paddingLeft="4dp"
android:textSize="18sp"
android:textColor="#000000"
android:ellipsize="marquee"
android:singleLine="true" />

now update your code as below

ArrayAdapter<String> dAdapter = new ArrayAdapter<String>(this,
            R.layout.spinner_layout,lb);

    dAdapter.setDropDownViewResource(R.layout.spinner_dropdown);

这篇关于TextView的颜色在微调的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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