blocks|key|1702010|text|我没有看到可以将外部字体定义为xml属性的方法。您应该将字体存储在资源中，并调用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1702011|tv.setTypeface(+Typeface.createFromAsset(+context.getAssets(),+roboto.ttf+)+);|code-block|syntax|javascript|1702012|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I don't see a way you can define an external typeface as a xml attribute. You should store the typeface in the assets and call:

<pre><code>tv.setTypeface( Typeface.createFromAsset( context.getAssets(), roboto.ttf ) );
</code></pre>

blocks|key|1915653|text|您不能直接从这样的资源设置字体，您必须在onCreate中执行以下操作。这将使同样的事情成为你想做的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1915654|TextView+tvTextView+=+(TextView)+findViewById(R.id.textView1);
Typeface+typeface+=+Typeface.createFromAsset(getAssets(),"Roboto.ttf");
tvTextView.setTypeface(typeface);|code-block|syntax|javascript|1915655|希望对你有帮助。：d|1915656|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can not set font directly from assets like this you have to do as follow in onCreate. This will make same thing what you want to do.

<pre><code>TextView tvTextView = (TextView) findViewById(R.id.textView1);
Typeface typeface = Typeface.createFromAsset(getAssets(),"Roboto.ttf");
tvTextView.setTypeface(typeface);
</code></pre>

Hope it will help you out.:D

blocks|key|1702150|text|对于JellyBean+(4.1)以后的版本，您可以使用this+StackOverflow+topic中提供的方法。它将优雅地退回到旧设备中的sans。如果您必须退回到monospace或serif，请声明一个文件夹布局-v16，其中使用您选择的字体，即"sans-serif-condensed"，在默认文件夹中，您使用"monospace“或"serif”字体。如果您想回退到非默认字体，您可以通过编程检查android版本并选择适当的操作，即：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1702151|if+(Build.VERSION.SDK_INT+<=+Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1)+{
++++TextView+textView+=+(TextView)+findViewById(R.id.textView_id);
++++Typeface+myFont+=+Typeface.createFromAsset(getAssets(),"RobotoCondensed.ttf");
++++textView.setTypeface(myFont);
}|code-block|syntax|javascript|1702152|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/12128331/how-to-change-fontfamily-of-textview-in-android^0|S|O|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@$A|R|B|S|1|T]]|C|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]]]

For JellyBean (4.1) onward you can use the method provided in <a href="https://stackoverflow.com/questions/12128331/how-to-change-fontfamily-of-textview-in-android">this StackOverflow topic</a>. It will fallback gracefully to sans in older devices.
If you must fallback to monospace or serif, declare a folder layout-v16 where you use the font you chose, i.e., "sans-serif-condensed", and in the default folder you use the "monospace" or "serif" font.
If you want to fallback to a non-default font, you can programatically check the android version and choose the appropriate action, i.e.:

<pre><code>if (Build.VERSION.SDK_INT &lt;= Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1) {
 TextView textView = (TextView) findViewById(R.id.textView_id);
 Typeface myFont = Typeface.createFromAsset(getAssets(),"RobotoCondensed.ttf");
 textView.setTypeface(myFont);
}
</code></pre>

blocks|key|1915682|text|看一看RobotoTextView项目。适用于Android1.5，您可以使用XML属性设置字体。它还包括其他视图，如RobotoButton、RobotoCheckbox等。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1915683|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/johnkil/Android-RobotoTextView^0|3|E|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Take a look at the <a href="https://github.com/johnkil/Android-RobotoTextView">RobotoTextView</a> project. Works down to Android 1.5, and you can set the typeface using XML attributes. It also includes other views like RobotoButton, RobotoCheckbox, etc.

blocks|key|1702189|text|这是为将来遇到和我一样的问题的人准备的。在加载多行时，设置字体往往会占用大量内存。将以下两个代码一起使用，实际上可以让它流畅地工作。我从stackoverflow得到了解决方案，但他们的答案没有一起列出。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1702190|public+class+RobotoTextView+extends+TextView+{

Context+context;

public+RobotoTextView(Context+context,+AttributeSet+attrs,+int+defStyle)+{
++++super(context,+attrs,+defStyle);
++++this.context+=+context;
}

public+RobotoTextView(Context+context,+AttributeSet+attrs)+{
++++super(context,+attrs);
++++this.context+=+context;
}

public+RobotoTextView(Context+context)+{
++++super(context);
++++this.context+=+context;
}

public+void+setTypeface(Typeface+tf,+int+style)+{
++++if+(!isInEditMode())+{
++++++++if+(style+==+Typeface.NORMAL)+{
++++++++++++super.setTypeface(TypeFaceProvider.getTypeFace(getContext(),+"fonts/Roboto-Light.ttf"));
++++++++}+else+if+(style+==+Typeface.ITALIC)+{
++++++++++++super.setTypeface(TypeFaceProvider.getTypeFace(getContext(),+"fonts/Roboto-LightItalic.ttf"));
++++++++}+else+if+(style+==+Typeface.BOLD)+{
++++++++++++super.setTypeface(TypeFaceProvider.getTypeFace(getContext(),+"fonts/Roboto-Bold.ttf"));
++++++++}+else+if+(style+==+Typeface.BOLD_ITALIC)+{
++++++++++++super.setTypeface(TypeFaceProvider.getTypeFace(getContext(),+"fonts/Roboto-BoldItalic.ttf"));
++++++++}

++++}
}



public+class+TypeFaceProvider+{

private+static+Hashtable<String,+Typeface>+sTypeFaces+=+new+Hashtable<String,+Typeface>(
++++++++4);

public+static+Typeface+getTypeFace(Context+context,+String+fileName)+{
++++Typeface+tempTypeface+=+sTypeFaces.get(fileName);

++++if+(tempTypeface+==+null)+{
++++++++tempTypeface+=+Typeface.createFromAsset(context.getAssets(),
++++++++++++++++fileName);
++++++++sTypeFaces.put(fileName,+tempTypeface);
++++}

++++return+tempTypeface;
}
}|code-block|syntax|javascript|1702191|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is for future people running in to the same issue as I have. Setting typeface tends to take up lot of memory when it comes to loading multiple rows. Using the following two codes together to actually make it work smoothly. I got the solution from stackoverflow but they answers were not listed together.

<pre><code>public class RobotoTextView extends TextView {

Context context;

public RobotoTextView(Context context, AttributeSet attrs, int defStyle) {
 super(context, attrs, defStyle);
 this.context = context;
}

public RobotoTextView(Context context, AttributeSet attrs) {
 super(context, attrs);
 this.context = context;
}

public RobotoTextView(Context context) {
 super(context);
 this.context = context;
}

public void setTypeface(Typeface tf, int style) {
 if (!isInEditMode()) {
 if (style == Typeface.NORMAL) {
 super.setTypeface(TypeFaceProvider.getTypeFace(getContext(), "fonts/Roboto-Light.ttf"));
 } else if (style == Typeface.ITALIC) {
 super.setTypeface(TypeFaceProvider.getTypeFace(getContext(), "fonts/Roboto-LightItalic.ttf"));
 } else if (style == Typeface.BOLD) {
 super.setTypeface(TypeFaceProvider.getTypeFace(getContext(), "fonts/Roboto-Bold.ttf"));
 } else if (style == Typeface.BOLD_ITALIC) {
 super.setTypeface(TypeFaceProvider.getTypeFace(getContext(), "fonts/Roboto-BoldItalic.ttf"));
 }

 }
}



public class TypeFaceProvider {

private static Hashtable&lt;String, Typeface&gt; sTypeFaces = new Hashtable&lt;String, Typeface&gt;(
 4);

public static Typeface getTypeFace(Context context, String fileName) {
 Typeface tempTypeface = sTypeFaces.get(fileName);

 if (tempTypeface == null) {
 tempTypeface = Typeface.createFromAsset(context.getAssets(),
 fileName);
 sTypeFaces.put(fileName, tempTypeface);
 }

 return tempTypeface;
}
}
</code></pre>

I've found several posts regarding this topic, but all of this topics either sets the font with <code>setTypeFace()</code> method on a <code>TextView</code> object, or creating a custom class which sets the font to <code>Roboto</code> and <code>extends</code> <code>TextView</code>. As far as I know from API-Level 11(?) or something, we are able to set the TypeFace as a xml attribute, some how. Like this:

<pre><code> &lt;TextView
 android:id="@+id/profileHeader"
 android:layout_width="100dp"
 android:layout_height="100dp"
 android:typeface="roboto"
 android:text="Hello, world"&gt;
 &lt;/TextView&gt;
</code></pre>

What is the right way to do this? Is it possible to have a fallback if the application runs on a device lower than API level 11(?) something like:

<pre><code> android:typeface="roboto|monospace|serif"
</code></pre>

Setting Roboto font in TextView - xml

我已经找到了几篇关于这个主题的帖子，但是所有这些主题要么在TextView对象上使用setTypeFace()方法设置字体，要么创建一个自定义类将字体设置为Roboto和extends TextView。据我所知，API-Level 11(?)或者，我们可以将TypeFace设置为xml属性，等等。如下所示： <T...

问在TextView - xml中设置Roboto字体
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