问题描述
我已经开发了一个例子。
I have developed one example.
在这里，我要的风格旋转器提示。请帮我。我怎样才能风格呢？
Here I have to style a spinner prompt. Please help me. How can I style it?
这是我的 string.xml code：
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World, CustomizedListView!</string>
<string name="app_name">CustomizedListView</string>
<string name="status_prompt">Choose a Status</string>
</resources>
这code用在我的main.xml：
This code is used on my main.xml:
<Spinner android:id="@+id/spinner1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_x="106dp"
android:layout_y="100dp"
android:prompt="@string/status_prompt"
android:background="@drawable/btn_dropdown"/>
在这里，我想改变背景颜色和 TEXTSIZE ， TEXTSTYLE 下面的图像。我怎样才能改变这一点。
Here I wish to change the background color and textSize, textStyle on below image. How can I change this.
编辑：我已经加入了跌破code。在 styles.xml
I have added the below code in styles.xml
<style name="spinner_style">
<item name="android:layout_width">fill_parent</item>
<item name="android:layout_height">wrap_content</item>
<item name="android:textColor">#040404</item>
<item name="android:typeface">monospace</item>
<item name="android:background">#FFFFFF</item>
</style>
还增加了以下线的main.xml中进行微调：
also added below line on the main.xml for spinner:
style="@style/spinner_style"
但是，它也没有为我工作。我怎样才能样式的微调提示消息。
But it also did not work for me. How can I style the spinner prompt message.
编辑：
这是我的Java $ C $下 ArrayAdaper ：
This is my java code for ArrayAdaper:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, list);
//set the view for the Drop down list
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
//set the ArrayAdapter to the spinner
spinner.setAdapter(adapter);
adapter.notifyDataSetChanged();
//attach the listener to the spinner
spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());
}
我怎么可以在这里设置提示风格。
How can I set the prompt style here.
推荐答案
为了改变提示，您需要使用类似的方法是什么// @ aswin - 库马尔建议，但有一个单独的样式的第一个元素下拉：
In order to change the prompt, you need to use a similar method to what @aswin-kumar suggested, but with a separate style for the first element of the drop down:
首先，延长 ArrayAdapter 并称之为 CustomArrayAdapter ：包com.example.project;
First, extend ArrayAdapter and call it CustomArrayAdapter:package com.example.project;
package com.example.project;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.List;
// I extend this using ArrayAdapter<String>, but you can use anything as the type
// parameter, or parameterize it as necessary.
public class CustomArrayAdapter extends ArrayAdapter<String> {
private String title;
public CustomArrayAdapter(Context aContext, int aTextViewResource, List<String> aOptions, String title) {
super(aContext, aTextViewResource, aOptions);
this.title = title;
}
@Override
public View getDropDownView(int aPosition, View aConvertView, ViewGroup aParent) {
LinearLayout v = null;
if (aPosition == 0) {
LayoutInflater inflater = (LayoutInflater)getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = (LinearLayout) inflater.inflate(R.layout.dropdown_header, aParent, false);
TextView tv = (TextView) v.findViewById(R.id.dropdown_item);
tv.setText(getItem(aPosition));
} else {
LayoutInflater inflater = (LayoutInflater)getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = (LinearLayout) inflater.inflate(R.layout.dropdown_item, aParent, false);
TextView tv = (TextView) v.findViewById(R.id.dropdown_item);
tv.setText(getItem(aPosition));
tv.setHeight((int) (tv.getTextSize() * 2));
}
return v;
}
@Override
public int getCount() {
return super.getCount() + 1;
}
@Override
public String getItem(int position) {
if (position == 0) {
return title;
}
return super.getItem(position - 1);
}
@Override
public boolean isEnabled(int position) {
return position != 0;
}
}
现在，请使用以下布局的 dropdown_header.xml ：
Now, use the following layout for your dropdown_header.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/dropdown_item"
android:textColor="@android:color/black"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="16dp"
android:paddingBottom="16dp"
android:paddingLeft="16dp"
android:gravity="left|center_vertical"
android:textSize="9pt" />
<!-- This adds a black separator line between the title and the items. You can remove
if you want -->
<LinearLayout
android:id="@+id/separator"
android:layout_height="4dp"
android:layout_width="match_parent"
android:background="@android:color/black"
android:orientation="vertical"/>
</LinearLayout>
在表单视图布局文件（form_view_layout.xml）：
The form view layout file (form_view_layout.xml):
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/spinner_dialog_root"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="9pt" />
微调器布局文件（<$ C C $> spinner_layout.xml ）：
<Spinner
android:id="@+id/spinner"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:background="@android:color/transparent"/>
现在，装上新的适配器将微调：
Now, attach the new adapter to your Spinner:
CustomArrayAdapter adapter = new CustomArrayAdapter(aActivity, R.layout.form_view_layout, aModel.getEnumerableOptions(), aModel.getTitle());
View parentView = aActivity.getLayoutInflater().inflate(R.layout.spinner_layout, aParent, false);
spinner = (Spinner) parentView.findViewById(R.id.spinner);
spinner.setAdapter(adapter);
最后，添加要显示你的微调适配器，适配器的字符串，风格相应的文件，你应该是好去。
Finally, add the strings you want to display to your spinner adapter, adapter, and style the appropriate files, and you should be good to go.
这篇关于我怎样才能样式的Android微调提示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！