1.在values文件夹下建立名为dimens.xml的文件，如下：
[html]
1. <?xml version="1.0" encoding="utf-8"?>
2. <resources>
3.
4.<string name="test_dimen">文本区域</string>
5.<string name="test_dimen1">按钮</string>
6.<dimen name="text_width">150px</dimen>
7.<dimen name="text_height">100px</dimen>
8.<dimen name="btn_width">30mm</dimen>
9.<dimen name="btn_height">10mm</dimen>
10.<color name="red_bg">#f00</color>
11. </resources>
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="test_dimen">文本区域</string>
<string name="test_dimen1">按钮</string>
<dimen name="text_width">150px</dimen>
<dimen name="text_height">100px</dimen>
<dimen name="btn_width">30mm</dimen>
<dimen name="btn_height">10mm</dimen>
<color name="red_bg">#f00</color>
</resources>
2.在layout文件夹下建立名为 test_dimens.xml的文件，如下：
[html]
1. <?xml version="1.0" encoding="utf-8"?>
2. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3.android:layout_width="fill_parent"
4.android:layout_height="fill_parent"
5.android:orientation="vertical" >
6.
7.<TextView
8.android:text="@string/test_dimen"
9.android:id="@+id/myDimenTextView01"
10.android:layout_width="wrap_content"
11.android:layout_height="wrap_content"
12.android:width="@dimen/text_width"
13.android:height="@dimen/text_height"
14.android:background="@color/red_bg"
15.
16./>
17.<Button
18.android:text="@string/test_dimen1"
19.android:id="@+id/Button01"
20.android:layout_width="wrap_content"
21.android:layout_height="wrap_content"
22./>
23. </LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:text="@string/test_dimen"
android:id="@+id/myDimenTextView01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:width="@dimen/text_width"
android:height="@dimen/text_height"
android:background="@color/red_bg"
/>
<Button
android:text="@string/test_dimen1"
android:id="@+id/Button01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
3.建立类：
[java]
1. package com.dim;
2.
3. import android.app.Activity;
4. import android.os.Bundle;
5. import android.widget.Button;
6. import android.content.res.*;
7. import com.dim.R;
8.
9. public class DimensionActivity extends Activity {
10./** Called when the activity is first created. */
11. private Button btn;
12.@Override
13.public void onCreate(Bundle savedInstanceState) {
14.super.onCreate(savedInstanceState);
15.//设置当前Activity的布局
16.
17.setContentView(R.layout.test_dimens);
18.//获取Button实例
19.btn=(Button)findViewById(R.id.Button01);
20.
21.Resources r=getResources();
22.
23.float btn_h =r.getDimension(R.dimen.btn_height);
24.float btn_w =r.getDimension(R.dimen.btn_width);
25.
26.btn.setHeight((int)btn_h);
27.
28.btn.setWidth((int)btn_w);
29.
30.//setContentView(R.layout.main);
31.}
32. }
package com.dim;
import android.app.Activity;
import android.os.Bundle;
import android.widget.Button;
import android.content.res.*;
import com.dim.R;
public class DimensionActivity extends Activity {
/** Called when the activity is first created. */
private Button btn;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//设置当前Activity的布局
setContentView(R.layout.test_dimens);
//获取Button实例
btn=(Button)findViewById(R.id.Button01);
Resources r=getResources();
float btn_h =r.getDimension(R.dimen.btn_height);
float btn_w =r.getDimension(R.dimen.btn_width);
btn.setHeight((int)btn_h);
btn.setWidth((int)btn_w);
//setContentView(R.layout.main);
}
}
