[原创]Spinner 改变字体,颜色等...

请各位转载的注明出处.谢谢.

原生的Spring 控件是无法更改字体和颜色的...

从下面的代码可以看出...红色的标注显示使用的是Android默认的布局..代码来自于Apidemo.

1 Spinner s1 = (Spinner) findViewById(R.id.spinner1);
2         ArrayAdapter < CharSequence > adapter = ArrayAdapter.createFromResource(
3                 this , R.array.colors, android.R.layout.simple_spinner_item);
4         adapter.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item );
5         s1.setAdapter(adapter);
6         s1.setOnItemSelectedListener(
7                 new OnItemSelectedListener() {
8                     public void onItemSelected(
9                             AdapterView <?> parent, View view, int position, long id) {
10                         showToast( " Spinner1: position= " + position + " id= " + id);
11                     }
12
13                     public void onNothingSelected(AdapterView <?> parent) {
14                         showToast( " Spinner1: unselected " );
15                     }
16                 });

通过查找源码...看到android.R.layout.simple_spinner_dropdown_item.xml

看下面的XML.

1 <? xml version="1.0" encoding="utf-8" ?>
2 <!--
3 /* //device/apps/common/assets/res/any/layout/simple_spinner_item.xml
4 **
5 ** Copyright 2008, The Android Open Source Project
6 **
7 ** Licensed under the Apache License, Version 2.0 (the "License");
8 ** you may not use this file except in compliance with the License.
9 ** You may obtain a copy of the License at
10 **
11 **     http://www.apache.org/licenses/LICENSE-2.0
12 **
13 ** Unless required by applicable law or agreed to in writing, software
14 ** distributed under the License is distributed on an "AS IS" BASIS,
15 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 ** See the License for the specific language governing permissions and
17 ** limitations under the License.
18 */
19 -->
20 < CheckedTextView xmlns:android ="http://schemas.android.com/apk/res/android"
21     android:id ="@android:id/text1"
22     style ="?android:attr/spinnerDropDownItemStyle"
23     android:singleLine ="true"
24     android:layout_width ="fill_parent"
25     android:layout_height ="?android:attr/listPreferredItemHeight"
26     android:ellipsize ="marquee" />

里面实际上是一个CheckedTextView,而CheckedTextView,又继承自TextView.所以我们可以自己定义一个只有TextView的XML文件...

里面可以随意设置TextView的属性..比如字体...颜色等等.... 然后替换adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);的xml...这样就能改变字体之类的属性了...

至此...相信大家都应该能明白了吧...