Question

我正在尝试运行活动。不幸的是，我们正在低于错误。似乎存在一些膨胀布局问题。请帮助我。

提前致谢。

基本活动xml：http://pastie.org/10848446

基础活动java：http://pastie.org/10848447

登录活动xml：http://pastie.org/10848450

登录活动java：http://pastie.org/10848454

自定义字体类型：http://pastie.org/10848460

自定义按钮：http://pastie.org/10848461

Answer 1

检查这些课程Error inflating class com.app.nbhc.utilities.CustomTypefacedButton

Answer 2

在您的布局文件中找不到您使用CustomTypefacedButton的位置，因此请查看我在上使用它的方式

这就是我使用的，只是代码，博客上的解释 -

档案 - attrs.xml

<declare-styleable name="TextFont">
    <attr name="customFont" format="string" />
</declare-styleable>

班级 - FontCache.java

public class FontCache {

    private static Hashtable<String, Typeface> fontCache = new Hashtable<>();

    /**
     * Gets the typeface from Asset folder
     * @param name path to the font within asset folder
     * @param context context of the view
     * @return
     */
    public static Typeface get(String name, Context context) {
        Typeface tf = fontCache.get(name);
        if (tf == null) {
            try {
                tf = Typeface.createFromAsset(context.getAssets(), name);
            } catch (Exception e) {
                return null;
            }
            fontCache.put(name, tf);
        }
        return tf;
    }
}

/**
 * Sets a font on a TextView
 *
 * @param textview view for which font mentioned needs to be changed
 * @param font path of the font where it has been saved (Generally within asset folder)
 * @param context Context where view has been used
 */
public static void setCustomFont(TextView textview, String font, Context context) {
    if (font == null) {
        return;
    }
    Typeface typeface = FontCache.get(font, context);
    if (typeface != null) {
        textview.setTypeface(typeface);
    }
}

班级 - CustomFontHelper.java

public class CustomFontHelper {
    /**
     * Sets a font on a textview based on the custom com.my.package:font attribute
     * If the custom font attribute isn't found in the attributes nothing happens
     *
     * @param textview
     * @param context
     * @param attrs
     */
    public static void setCustomFont(TextView textview, Context context, AttributeSet attrs) {
        TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.TextFont);
        String font = typedArray.getString(R.styleable.TextFont_customFont);
        setCustomFont(textview, font, context);
        typedArray.recycle();
    }

    /**
     * Sets a font on a TextView
     *
     * @param textview view for which font mentioned needs to be changed
     * @param font path of the font where it has been saved (Generally within asset folder)
     * @param context Context where view has been used
     */
    public static void setCustomFont(TextView textview, String font, Context context) {
        if (font == null) {
            return;
        }
        Typeface typeface = FontCache.get(font, context);
        if (typeface != null) {
            textview.setTypeface(typeface);
        }
    }

    /**
     * Sets a font on a paint based on the custom com.my.package:font attribute
     * If the custom font attribute isn't found in the attributes nothing happens
     * 
     * @param paint
     * @param context
     * @param attrs
     */
    public static void setCustomFont(Paint paint, Context context, AttributeSet attrs){
        TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.TextFont);
        String font = typedArray.getString(R.styleable.TextFont_customFont);
        setCustomFont(paint, font, context);
        typedArray.recycle();
    }

    /**
     * Changing font of Paint element
     * @param paint text element of which font needs to be changed
     * @param font
     * @param context
     */
    public static void setCustomFont(Paint paint, String font, Context context) {
        if (font == null) {
            return;
        }
        Typeface typeface = FontCache.get(font, context);
        if (typeface != null) {
            paint.setTypeface(typeface);
        }
    }
}

班级 - FontButton.java

public class FontButton extends Button {

    public FontButton(Context context) {
        super(context);
    }

    public FontButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        CustomFontHelper.setCustomFont(this, context, attrs);
    }

    public FontButton(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        CustomFontHelper.setCustomFont(this, context, attrs);
    }
}

在资产文件夹

中的string.xml字体路径中

<string name="font_light">fonts/SourceSansPro-Regular.ttf</string>
<string name="font_semibold">fonts/SourceSansPro-Semibold.ttf</string>
<string name="font_regular">fonts/SourceSansPro-Regular.ttf</string>
<string name="font_bold">fonts/Oxygen-Bold.ttf</string>

在xml中，这就是我使用它的方式 -

<com.COMPANY.APP.app.custom.FontButton xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/lbl_welcome"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/img_logo"
    android:layout_marginTop="20dp"
    android:gravity="center"
    android:text="YOUR SHOPPING COMPANION!"
    android:textColor="@color/toolbar"
    android:textSize="@dimen/font_12"
    app:customFont="@string/font_semibold" />

无法启动活动java.lang.RuntimeException：无法启动活动

2 个答案: