The use of the Android style

Style personal understanding is a collection of properties of the view, then a series of view (for example, TextView), as long as the style is to have the same content, such as the text of the small, color, etc., easy to modify

First of all, the most basic use, multiple TextView are displayed the same color and text, such as a small number of properties

Definition of Sytle:

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2. <style name="TextViewStyle1" >
4. <item name="Android:textcolor" >@android:color/holo_red_light</item>
6. <item name="android:textsize" >40sp</item>
8. <item name="Android:layout_height" >wrap_content</item>
10. <item name="Android:layout_width" >200dp</item>
12. <item name="Android:background" > #ffff00ff </item>
14. <item name="android:gravity" >center_horizontal</item>
16. </style>

These properties are familiar and use

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2. <TextView
4. style="@style/textviewstyle1"
6. android:layout_margintop="100DP"
8. android:text="test1"/>
12. <TextView
14. style="@style/textviewstyle1"
16. android:layout_margintop="200DP"
18. android:text="test2"/>
20. <TextView
22. style="@style/textviewstyle1"
24. android:layout_margintop="300DP"
26. android:text="test3"/>
28. <TextView
30. style="@style/textviewstyle1"
32. android:layout_margintop="400DP"
34. android:text="test4"/>

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1. So the result is <img src="http://img.blog.csdn.net/20140913101147703?watermark/2/text/ ahr0cdovl2jsb2cuy3nkbi5uzxqvagv3zw5jzte=/font/5a6l5l2t/fontsize/400/fill/i0jbqkfcma==/dissolve/70/gravity/ Center " alt="" />

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1. So we used style in < TextView and used a conflict with style to be early?

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1. Modify the background and color of the first TextView:

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2. <pre name="code" class="html"><TextView
4. style="@style/textviewstyle1"
6. android:layout_margintop="100DP"
8. android:gravity="Center_horizontal"
10. android:background="#ff00ff00"
12. android:textcolor="#ffffffff"
14. android:text="test1"/>

So the result is

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1. As you can see, the properties of the associated view include all the attributes in the style, and the view defines the

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1. Properties in style that are not useful in view are automatically ignored

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Inheritance of 2.style

1. Add the Parent

<style name= "TextViewStyle2" parent= "@style/textviewstyle1" >
<item name= "Android:layout_width" >400dp</item>
</style>

2. Add

<style name="Textviewstyle1.test">
<item name= "Android:layout_width" >800dp</item>
</style>

You can also inherit multiple:

<style name= "TextViewStyle1.test.test" >
<item name= "Android:layout_width" >1200dp</item>
</style>

Then the layout file is changed to:

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2. <TextView
4. style="@style/textviewstyle1"
6. android:layout_margintop="100DP"
8. android:gravity="Center_horizontal"
10. android:background="#ff00ff00"
12. android:textcolor="#ffffffff"
14. android:text="test1"/>
18. <TextView
20. style="@style/textviewstyle1.test.test"
22. android:layout_margintop="200DP"
24. android:text="test2"/>
26. <TextView
28. style="@style/textviewstyle2"
30. android:layout_margintop="300DP"
32. android:text="test3"/>
34. <TextView
36. style="@style/textviewstyle1.test"
38. android:layout_margintop="400DP"
40. android:text="test4"/>

The output results are as follows:

Sytle more properties See the Android package under the R.attr, these are the system Oh!

Use theme, this is fierce, changed later will affect the display of the program:

The system default is:

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1. <application
2. android:allowbackup="true"
3. android:icon="@drawable/ic_launcher"
4. android:label="@string/app_name"
5. android:theme="@style/apptheme" >

I'm going to

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1. Apptheme Modify it:

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2. Added two elements:<pre name="code" class="html"> <style name=" Appbasetheme " parent="android:Theme.Holo.Light.DarkActionBar ">
4. <!--API Theme customizations can go.
6. <strong><item name="android:textsize">60sp</Item >
8. <item name="Android:typeface">monospace</Item></ strong>
10. </style>

Then the system all the text of the large and small is 60sp, font use monospace (unless your view is redefined)

More system style can be found in:

sdk\platforms\andrid-$API \DATA\RES\THEMES.XM Styles.xml

The use of the Android style