为完整的Android应用程序添加自定义字体

时间:2011-08-03 12:12:53

标签: android textview custom-font

在我的应用程序中,我需要对所有textview和edit-text字段使用helvetica字体。除了对每个textview使用settypeface方法之外,还有什么方法可以做到这一点吗?任何建议都会有很大的帮助。

提前致谢!

8 个答案:

答案 0 :(得分:64)

我自己想通了。这是我使用的代码。我创建自定义TextView,其自定义字体为默认字体。

public class MyTextView extends TextView {

    public MyTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        init();
    }

    public MyTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public MyTextView(Context context) {
        super(context);
        init();
    }

    private void init() {
        Typeface tf = Typeface.createFromAsset(getContext().getAssets(), "font/chiller.ttf");
        setTypeface(tf ,1);

    }

}

答案 1 :(得分:27)

在您的活动中,在您致电后立即

  

的setContentView(R.id.blahblah);

你应该运行一个方法来遍历整个小部件层次结构并处理字体替换,比如;

setContentView(R.id.blahblah);
Utils.overrideFonts(this, findViewById(android.R.id.content));

提到的“overrideFonts”方法应该是类似的东西;

public static void overrideFonts(final Context context, final View v) {
    try {
        if (v instanceof ViewGroup) {
            ViewGroup vg = (ViewGroup) v;
            for (int i = 0; i < vg.getChildCount(); i++) {
                View child = vg.getChildAt(i);
                overrideFonts(context, child);
            }
        } else if (v instanceof TextView) {
            ((TextView)v).setTypeface(FONT_REGULAR);
        }
    } catch (Exception e) {
        e.printStackTrace();
        // ignore
    }
}

在这个方案中,FONT_REGULAR应该安全地在某个地方初始化,你可能想要一个单例或其他方式来确保它被正确初始化...

private static void initializeFonts(final Context context) {
    FONT_REGULAR = Typeface.createFromAsset(context.getAssets(), "fonts/myfont_medium.otf");
    FONT_BOLD = Typeface.createFromAsset(context.getAssets(), "fonts/myfont_bold.otf");
}

如果您使用像MyAppActivity这样的Activity子类(扩展Activity),那么您不需要为这些自定义更改每个Activity类。相反,你可以切入它并覆盖这样的行为;

public class MyAppActivity extends Activity {
... ...
    @Override
    public void setContentView(final int layoutResID) {
        super.setContentView(layoutResID);
        Utils.overrideFonts(this, findViewById(android.R.id.content));
    }
... ...
}

通过这种方式,您可以使用您的任何活动来获得共同的行为;

public class SettingsUI extends MyAppActivity {
... ...
} 

我希望它有帮助...... 干杯!

答案 2 :(得分:9)

创建一个样式并使用它所有的文本属性。

<style name="CustomText">
    <item name="android:typeface">YourFontName</item>
</style>

使用它:

<TextView style="@style/CustomText" />

以上是在所有活动中使用自定义字体进行自定义,您可以使用....

Typeface font = Typeface.createFromAsset(getAssets(), "CustomFontName.ttf");  
txt.setTypeface(font);

试试这个。

答案 3 :(得分:6)

要在所有应用程序中应用自定义字体,只需创建以下活动:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    FontManager.getInstance().initialize(this, R.xml.fonts);
    setContentView(R.layout.main);
}
@Override
public View onCreateView(String name, Context context, AttributeSet attrs) {
    SimpleFactory factory = new SimpleFactory();
    return factory.onCreateView(name, context, attrs);
}

其中FontManager这是一个类,它管理在/xml/fonts.xml和SimpleFactory中定义的所有字体,只是工厂创建视图并将自定义字体应用于每个视图的文本视图实例。

/xml/fonts.xml

<?xml version="1.0" encoding="utf-8"?>
<familyset>
    <family>
        <nameset>
            <!--Font name-->
            <name>HelveticaNeueLTStd</name>
        </nameset>
        <fileset>
            <!--Font styles-->
            <file style="normal">fonts/HelveticaNeueLTStd-LtCn.otf</file>
            <file style="bold">fonts/HelveticaNeueLTStd-MdCn.otf</file>
            <file style="italic">fonts/HelveticaNeueLTStd-LtCnO.otf</file>
            <file style="bold_italic">fonts/HelveticaNeueLTStd-MdCnO.otf</file>
        </fileset>
    </family>
    <family>
        <!--There new font family can be added,
don't forget add font files into /assets/fonts directory and
put the name of the font into /values/string/font.xml-->
    </family>
</familyset>

FontFactory - abastract类,只需将其扩展为创建自己的工厂

public abstract class FontFactory implements LayoutInflater.Factory{
    public final String TAG = getClass().getSimpleName();

    static final Class<?>[] mConstructorSignature = new Class[] {Context.class, AttributeSet.class};
    final Object[] mConstructorArgs = new Object[2];
    private static final String[] sClassPrefixList = {
            "android.widget.",
            "android.webkit."
    };

    @Override
    public View onCreateView(String name, Context context, AttributeSet attrs) {
        if("ViewStub".equals(name) || "View".equals(name)){
            return null;
        }
        View view = null;
        Constructor<? extends View> constructor = null;
        Class clazz = null;

        if (view == null) {
            if (-1 == name.indexOf('.')) {
                for (String prefix : sClassPrefixList) {
                    clazz = getClazz(prefix, name);
                    if(clazz != null){
                        break;
                    }
                }
            } else {
                clazz = getClazz("", name);
            }
        }

        if (clazz == null) {
            Log.d(TAG, "View can't be created " + name);
            return null;
        }

        try {
            constructor = clazz.getConstructor(mConstructorSignature);
        } catch (NoSuchMethodException e) {
            e.printStackTrace();
        }

        Object[] args = mConstructorArgs;
        args[1] = attrs;

        if(constructor == null){
            return null;
        }

        try {
                view = constructor.newInstance(context, attrs);
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            e.printStackTrace();
        }

        if(view != null){
            onFontApply(context, view);
        }
        return view;
    }

    public abstract void onFontApply(Context context, View view);

    private Class getClazz(String prefix, String name){
        Class clazz = null;
        try {
            clazz = Class.forName(prefix + name);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } finally {
            return clazz;
        }
    }
}

FontManager - 只需将/xml/fonts.xml中定义的字体文件映射到/ assets目录中的字体文件,并按字体系列名称和字体样式返回TypeFace。

public void initialize(Context context, int resId) {
    if(mFonts != null){
        Log.d(TAG,"FontManager have already initialized");
        return;
    }
    XmlResourceParser parser = null;
    try {
        parser = context.getResources().getXml(resId);
        mFonts = new ArrayList<Font>();

        String tag;
        String fontStryleAttr = null;
        int eventType = parser.getEventType();

        Font font = null;

        do {
            tag = parser.getName();

            switch (eventType) {
                case XmlPullParser.START_TAG:
                    if (tag.equals(TAG_FAMILY)) {
                        // one of the font-families.
                        font = new Font();
                    } else if (tag.equals(TAG_NAMESET)) {
                        // a list of font-family names supported.
                        font.families = new ArrayList<String>();
                    } else if (tag.equals(TAG_NAME)) {
                        isName = true;
                    } else if (tag.equals(TAG_FILESET)) {
                        // a list of files specifying the different styles.
                        font.styles = new ArrayList<FontStyle>();
                    } else if (tag.equals(TAG_FILE)) {
                        isFile = true;
                        fontStryleAttr = parser.getAttributeValue(null, ATTR_STYLE);
                    }
                    break;

                case XmlPullParser.END_TAG:
                    if (tag.equals(TAG_FAMILY)) {
                        // add it to the list.
                        if (font != null) {
                            mFonts.add(font);
                            font = null;
                        }
                    } else if (tag.equals(TAG_NAME)) {
                        isName = false;
                    } else if (tag.equals(TAG_FILE)) {
                        isFile = false;
                        fontStryleAttr = null;
                    }
                    break;

                case XmlPullParser.TEXT:
                    String text = parser.getText();
                    if (isName) {
                        // value is a name, add it to list of family-names.
                        if (font.families != null)
                            font.families.add(text);
                    } else if (isFile) {
                        // value is a file, add it to the proper kind.
                        FontStyle fontStyle = new FontStyle();
                        fontStyle.font = Typeface.createFromAsset(context.getAssets(), text);
                        String attr = parser.getAttributeValue(null, ATTR_STYLE);
                        if (fontStryleAttr.equals(STYLE_BOLD))
                            fontStyle.style = Typeface.BOLD;
                        else if (fontStryleAttr.equals(STYLE_ITALIC))
                            fontStyle.style = Typeface.ITALIC;
                        else if (fontStryleAttr.equals(STYLE_BOLD_ITALIC))
                            fontStyle.style = Typeface.BOLD_ITALIC;
                        else
                            fontStyle.style = Typeface.NORMAL;
                        font.styles.add(fontStyle);
                    }
            }

            eventType = parser.next();

        } while (eventType != XmlPullParser.END_DOCUMENT);

    } catch (XmlPullParserException e) {
        throw new InflateException("Error inflating font XML", e);
    } catch (IOException e) {
        throw new InflateException("Error inflating font XML", e);
    } finally {
        if (parser != null)
            parser.close();
    }
}

public Typeface get(String family, int style) {
    for (Font font: mFonts) {
        for (String familyName : font.families) {
            if (familyName.equals(family)) {
                // if no style in specified, return normal style.
                if (style == -1)
                    style = Typeface.NORMAL;
                for (FontStyle fontStyle : font.styles) {
                    if (fontStyle.style == style)
                        return fontStyle.font;
                }
            }
        }
    }
    return mDefaultFont;
}

了解更多代码和示例,只需查看here

答案 4 :(得分:0)

好的,你可以做到,但你本质上想做的是一种有点地图格式的字体图集(它必须以unicode顺序运行,它开始!“#$%'()x +, - ./)。该函数将做的是接受一个字符串并找出每个相应字母在atlas中的位置。

它不是太容易,但每个角色必须具有相同的长度和宽度,你可以有不同的长度,但这将更加困难。

答案 5 :(得分:0)

您可以在http://bit.ly/1bzjWQn

使用PixlUI

在项目中导入他们的.jar。在XML中使用它

 <com.neopixl.pixlui.components.textview.TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/hello_world"
    pixlui:typeface="MyFont.ttf" />

不要忘记实施方案(xmlns:pixlui =“http://schemas.android.com/apk/com.neopixl.pixlui”)

答案 6 :(得分:0)

    setContentView(R.layout.activity_main);
    custfont(this, findViewById(android.R.id.content));



private void custfont(final Context context, View v) 
{
    try
    {
        if (v instanceof ViewGroup) 
        {
            ViewGroup vg = (ViewGroup) v;

            for (int i = 0; i < vg.getChildCount(); i++) 
            {
                View child = vg.getChildAt(i);
                overrideFonts(context, child);
            }
        }
        else if (v instanceof TextView ) 
        {
            ((TextView) v).setTypeface(Typeface.createFromAsset(context.getAssets(), "fonts/ostrichblack.ttf"));
        }
    }
    catch (Exception e) 
    {
    }
}

答案 7 :(得分:0)

import android.content.Context;
import android.graphics.Typeface;

/**
 * Created by Sanjeev Kumar on 4/18/2017.
 */

public class FontManager {
    public Context mContext;

    public FontManager(Context context) {
        this.mContext = context;
    }

    public Typeface getSquarkiFont() {
        return Typeface.createFromAsset(mContext.getAssets(), "fonts/Squarki.ttf");
    }

    public Typeface getLazySpringDayFont() {
        return Typeface.createFromAsset(mContext.getAssets(), "fonts/LazySpringDay.ttf");
    }
}