blocks|key|1003792|text|有两种方法可以实现此目的：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1003793|1.使用样式|1003794|您可以通过在res/values目录上创建XML文件来定义您自己的样式。因此，假设您希望使用红色和粗体文本，然后创建一个包含以下内容的文件：|offset|length|style|CODE|1003795|<?xml+version="1.0"+encoding="utf-8"?>
<resources>
++<style+name="MyRedTheme"+parent="android:Theme.Light">
++++<item+name="android:textAppearance">@style/MyRedTextAppearance</item>
++</style>
++<style+name="MyRedTextAppearance"+parent="@android:style/TextAppearance">
++++<item+name="android:textColor">#F00</item>
++++<item+name="android:textStyle">bold</item>
++</style>
</resources>|code-block|syntax|javascript|1003796|你可以随心所欲地命名，例如res/values/red.xml。然后，您唯一需要做的就是在您想要的小部件中使用该视图，例如：|1003797|<?xml+version="1.0"+encoding="utf-8"?>
<LinearLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:orientation="vertical"
++++android:layout_width="fill_parent"
++++android:layout_height="fill_parent"
++++>
<TextView
++++style="@style/MyRedTheme"
++++android:layout_width="fill_parent"+
++++android:layout_height="wrap_content"+
++++android:text="This+is+red,+isn't+it?"
++++/>
</LinearLayout>|1003798|有关更多参考信息，请阅读本文：Understanding+Android+Themes+and+Styles|1003799|2.使用自定义类|1003800|这是实现此目的的另一种可能方法，它将提供您自己的TextView，它始终将文本颜色设置为您想要的颜色；例如：|1003801|import+android.content.Context;
import+android.graphics.Color;
import+android.util.AttributeSet;
import+android.widget.TextView;
public+class+RedTextView+extends+TextView{
++++public+RedTextView(Context+context,+AttributeSet+attrs)+{
++++++++super(context,+attrs);
++++++++setTextColor(Color.RED);
++++}
}|1003802|然后，您只需将其视为XML文件中的普通TextView：|1003803|<?xml+version="1.0"+encoding="utf-8"?>
<LinearLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:orientation="vertical"
++++android:layout_width="fill_parent"
++++android:layout_height="fill_parent"
++++>
<org.example.RedTextView++
++++android:layout_width="fill_parent"+
++++android:layout_height="wrap_content"+
++++android:text="This+is+red,+isn't+it?"
++++/>
</LinearLayout>|1003804|1003805|您是否使用一个或另一个选择取决于您的需求。如果您唯一想做的就是修改外观，那么最好的方法是第一种。另一方面，如果您想要更改外观并向小部件添加一些新功能，则可以使用第二种方法。|1003806|entityMap|0|LINK|mutability|MUTABLE|url|http://brainflush.wordpress.com/2009/03/15/understanding-android-themes-and-styles/^0|0|0|6|A|0|0|D|I|0|0|F|13|0|0|0|O|8|0|0|J|8|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1G|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1H|8|@$F|1I|G|1J|H|I]]|9|@]|A|$]]|$1|J|3|K|5|L|7|1K|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|1L|8|@$F|1M|G|1N|H|I]]|9|@]|A|$]]|$1|Q|3|R|5|L|7|1O|8|@]|9|@]|A|$M|N]]|$1|S|3|T|5|6|7|1P|8|@]|9|@$F|1Q|G|1R|1|1S]]|A|$]]|$1|U|3|V|5|6|7|1T|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1U|8|@$F|1V|G|1W|H|I]]|9|@]|A|$]]|$1|Y|3|Z|5|L|7|1X|8|@]|9|@]|A|$M|N]]|$1|10|3|11|5|6|7|1Y|8|@$F|1Z|G|20|H|I]]|9|@]|A|$]]|$1|12|3|13|5|L|7|21|8|@]|9|@]|A|$M|N]]|$1|14|3|-4|5|6|7|22|8|@]|9|@]|A|$]]|$1|15|3|16|5|6|7|23|8|@]|9|@]|A|$]]|$1|17|3|-4|5|6|7|24|8|@]|9|@]|A|$]]]|18|$19|$5|1A|1B|1C|A|$1D|1E]]]]

<p>There are two ways to do so:</p>

<h2>1. Using styles</h2>

<p>You can define your own styles by creating XML files on the <code>res/values</code> directory. So, let's suppose you want to have red and bold text, then you create a file with this content:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;resources&gt;
  &lt;style name="MyRedTheme" parent="android:Theme.Light"&gt;
    &lt;item name="android:textAppearance"&gt;@style/MyRedTextAppearance&lt;/item&gt;
  &lt;/style&gt;
  &lt;style name="MyRedTextAppearance" parent="@android:style/TextAppearance"&gt;
    &lt;item name="android:textColor"&gt;#F00&lt;/item&gt;
    &lt;item name="android:textStyle"&gt;bold&lt;/item&gt;
  &lt;/style&gt;
&lt;/resources&gt;
</code></pre>

<p>You can name it like you want, for instance <code>res/values/red.xml</code>. Then, the only thing you have to do is using that view in the widgets that you want, for instance:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    &gt;
&lt;TextView
    style="@style/MyRedTheme"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="This is red, isn't it?"
    /&gt;
&lt;/LinearLayout&gt;
</code></pre>

<p>For further reference, you can read this article: <a href="http://brainflush.wordpress.com/2009/03/15/understanding-android-themes-and-styles/" rel="noreferrer">Understanding Android Themes and Styles</a></p>

<h2>2. Using custom classes</h2>

<p>This is another possible way to achieve this, and it would be to provide your own <code>TextView</code> that set the text color always to whatever you want; for instance:</p>

<pre><code>import android.content.Context;
import android.graphics.Color;
import android.util.AttributeSet;
import android.widget.TextView;
public class RedTextView extends TextView{
    public RedTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        setTextColor(Color.RED);
    }
}
</code></pre>

<p>Then, you just have to treat it as a normal <code>TextView</code> in your XML file:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    &gt;
&lt;org.example.RedTextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="This is red, isn't it?"
    /&gt;
&lt;/LinearLayout&gt;
</code></pre>

<hr/>

<p>Whether you use one or another choice depends on your needs. If the only thing you want to do is modifying the appearance, then the best approach is the first. On the other hand, if you want to change the appearance and add some new functionality to your widgets, the second one is the way to go.</p>


blocks|key|1218149|text|定义样式并在每个小部件上使用，定义覆盖该小部件的android默认设置的主题，或定义字符串资源并在每个小部件中引用它|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1218150|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

<p>Define a style and use it on each widget, define a theme that overrides the android default for that widget, or define a string resource and reference it in each widget </p>


blocks|key|1003894|text|实际上，您可以为TextViews+(和大多数其他内置小部件)设置默认样式，而无需创建自定义java类或单独设置样式。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1003895|如果您查看Android源代码中的themes.xml，您将看到各种小部件的默认样式的一组属性。关键是textViewStyle+(或editTextStyle等)属性，您可以在自定义主题中覆盖该属性。您可以通过以下方式覆盖这些设置：|offset|length|style|CODE|1003896|创建styles.xml|1003897|<?xml+version="1.0"+encoding="utf-8"?>
<resources>
<style+name="MyTheme"+parent="android:Theme">
++++<item+name="android:textViewStyle">@style/MyTextViewStyle</item>
</style>

<style+name="MyTextViewStyle"+parent="android:Widget.TextView">
++++<item+name="android:textColor">#F00</item>
++++<item+name="android:textStyle">bold</item>
</style>
</resources>|code-block|syntax|javascript|1003898|然后，只需将该主题应用于AndroidManifest.xml中的应用程序|1003899|<application+[…]+android:theme="@style/MyTheme">…|1003900|所有的文本视图都将默认使用MyTextViewStyle中定义的样式(在本例中为粗体和红色)！|1003901|这在API+level+4以上的设备上进行了测试，似乎效果很好。|1003902|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/android/platform_frameworks_base/blob/master/core/res/res/values/themes.xml^0|0|H|A|1F|D|1V|D|H|A|0|0|2|A|0|0|C|J|0|0|D|F|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|15|8|@$D|16|E|17|F|G]|$D|18|E|19|F|G]|$D|1A|E|1B|F|G]]|9|@$D|1C|E|1D|1|1E]]|A|$]]|$1|H|3|I|5|6|7|1F|8|@$D|1G|E|1H|F|G]]|9|@]|A|$]]|$1|J|3|K|5|L|7|1I|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|1J|8|@$D|1K|E|1L|F|G]]|9|@]|A|$]]|$1|Q|3|R|5|L|7|1M|8|@]|9|@]|A|$M|N]]|$1|S|3|T|5|6|7|1N|8|@$D|1O|E|1P|F|G]]|9|@]|A|$]]|$1|U|3|V|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|1R|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13]]]]

<p>Actually, you can set a default style for TextViews (and most other built-in widgets) without needing to do a custom java class or setting the style individually.</p>

<p>If you take a look in <a href="https://github.com/android/platform_frameworks_base/blob/master/core/res/res/values/themes.xml" rel="noreferrer"><code>themes.xml</code></a> in the Android source, you will see a bunch of attributes for the default style for various widgets. The key is the <code>textViewStyle</code> (or <code>editTextStyle</code>, etc.) attribute which you override in your custom theme. You can override these in the following way:</p>

<p>Create a <code>styles.xml</code>:</p>

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;resources&gt;
&lt;style name="MyTheme" parent="android:Theme"&gt;
    &lt;item name="android:textViewStyle"&gt;@style/MyTextViewStyle&lt;/item&gt;
&lt;/style&gt;

&lt;style name="MyTextViewStyle" parent="android:Widget.TextView"&gt;
    &lt;item name="android:textColor"&gt;#F00&lt;/item&gt;
    &lt;item name="android:textStyle"&gt;bold&lt;/item&gt;
&lt;/style&gt;
&lt;/resources&gt;
</code></pre>

<p>Then just apply that theme to your application in <code>AndroidManifest.xml</code>:</p>

<pre><code>&lt;application […] android:theme="@style/MyTheme"&gt;…
</code></pre>

<p>And all your text views will default to the style defined in <code>MyTextViewStyle</code> (in this instance, bold and red)!</p>

<p>This was tested on devices from API level 4 onward and seems to work great.</p>


blocks|key|1218237|text|对于TextView中的默认文本颜色，请将主题中的android:textColorTertiary设置为所需的颜色：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1218238|<item+name="android:textColorTertiary">@color/your_text_color</item>|code-block|syntax|javascript|1218239|许多其他Android控件的颜色可以使用框架属性来控制，或者如果您使用支持库，则支持库属性。|1218240|要查看可以设置的属性列表，请查看styles.xml和themes.xml的Android+source+code，或者Dan+Lew的这个非常有用的gist，尝试更改每个值并查看它们在屏幕上发生了什么变化。|1218241|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/guide/topics/ui/themes.html#PlatformStyles|1|https://gist.github.com/dlew/a2e2f247c78495eca4e6^0|2|8|P|P|0|0|0|G|A|R|A|12|J|0|23|4|1|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]|$9|11|A|12|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|13|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@$9|1A|A|1B|1|1C]|$9|1D|A|1E|1|1F]]|E|$]]|$1|O|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V]]|W|$5|R|S|T|E|$U|X]]]]

<p>For default text color in <code>TextView</code>, set <code>android:textColorTertiary</code> in your theme to desired color:</p>

<pre><code>&lt;item name="android:textColorTertiary"&gt;@color/your_text_color&lt;/item&gt;
</code></pre>

<p>Many other Android control's colors can be controlled using framework attributes, or support library attributes if you use support library.</p>

<p>For a list of attributes you can set, check out <a href="http://developer.android.com/guide/topics/ui/themes.html#PlatformStyles" rel="noreferrer">Android source code</a> of <code>styles.xml</code> and <code>themes.xml</code>, or this very helpful <a href="https://gist.github.com/dlew/a2e2f247c78495eca4e6" rel="noreferrer">gist</a> by Dan Lew, try changing each value and see what they change on screen.</p>


<p>Let's say I want all the <code>TextView</code> instances in my app to have <code>textColor="#ffffff"</code>. Is there a way to set that in one place instead of setting it for each <code>TextView</code>?</p>


Setting global styles for Views in Android

Android

比方说，我希望应用程序中的所有TextView实例都有textColor="#ffffff"。有没有一种方法可以在一个地方设置，而不是为每个TextView设置

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