Android 小部件上的自定义字体
我正在尝试创建一个带有自定义字体的数字时钟小部件。
我从此处得到了线索解决
方案是扩展 TextView 并为自定义添加新属性字体字体。与绘制 Canvas 和 Bitmap 解决方案然后将其传递给 RemoteViews 相比,这是一个很好的解决方案。
我遵循每一步, 1.创建自定义类CustomFont.java 2.在attrs.xml中定义样式 3.然后将其放入main.xml中,
但我收到以下错误
WARN/AppWidgetHostView(18681): updateAppWidget couldn't find any view, using error view
WARN/AppWidgetHostView(18681): android.view.InflateException: Binary XML file line #17: Error inflating class upper.duper.widget.circular.clock.CustomFont
...
...
...
WARN/AppWidgetHostView(18681): Caused by: java.lang.ClassNotFoundException: upper.duper.widget.circular.clock.CustomFont in loader dalvik.system.PathClassLoader
缺少东西?
这里我附上代码 这是 CustomFont.java
package upper.duper.widget.circular.clock;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.TextView;
public class CustomFont extends TextView {
private static final String TAG = "CustomFont";
public CustomFont(Context context) {
super(context);
}
public CustomFont(Context context, AttributeSet attrs) {
super(context, attrs);
setCustomFont(context, attrs);
}
public CustomFont(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setCustomFont(context, attrs);
}
private void setCustomFont(Context ctx, AttributeSet attrs) {
TypedArray a = ctx.obtainStyledAttributes(attrs, R.styleable.CustomFont);
String customFont = a.getString(R.styleable.CustomFont_customFont);
setCustomFont(ctx, customFont);
a.recycle();
}
public boolean setCustomFont(Context ctx, String asset) {
Typeface tf = null;
try {
tf = Typeface.createFromAsset(ctx.getAssets(), asset);
} catch (Exception e) {
Log.e(TAG, "Could not get typeface: "+e.getMessage());
return false;
}
setTypeface(tf);
return true;
}
}
这是我的 main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:updup="http://schemas.android.com/apk/res/upper.duper.widget.circular.clock"
android:background="#00000000"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<AnalogClock android:id="@+id/AnalogClock"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:dial="@drawable/widgetdial_white"
android:hand_hour="@drawable/widgethour"
android:hand_minute="@drawable/widgetminute"/>
<upper.duper.widget.circular.clock.CustomFont
android:id="@+id/TIME"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textStyle="bold"
android:layout_gravity="center"
android:singleLine="true"
android:ellipsize="none"
android:textSize="12sp"
android:textAppearance="?android:attr/textAppearanceMedium"
android:padding="2dp"
updup:customFont="ALPNMAIN.TTF" />
我已经将自定义字体(ALPNMAIN.TTF)放在资产文件夹中。
这是 attrs.xml
<resources>
<declare-styleable name="CustomFont">
<attr name="customFont" format="string"/>
</declare-styleable>
</resources>
现在我觉得不可能为应用程序小部件提供“自定义”内容。 请查看此处
I'm trying to create a digital clock widget with custom typeface font.
I got clues from here
Solution was by extending TextView and put new attribute for custom font typeface. This is a good solution compared to drawing Canvas and Bitmap solution then pass it to RemoteViews.
I followed every step,
1. create custom class CustomFont.java
2. define style in attrs.xml
3. then put it in main.xml
but I got the following errors
WARN/AppWidgetHostView(18681): updateAppWidget couldn't find any view, using error view
WARN/AppWidgetHostView(18681): android.view.InflateException: Binary XML file line #17: Error inflating class upper.duper.widget.circular.clock.CustomFont
...
...
...
WARN/AppWidgetHostView(18681): Caused by: java.lang.ClassNotFoundException: upper.duper.widget.circular.clock.CustomFont in loader dalvik.system.PathClassLoader
Something missing?
Here I attach the codes
This is CustomFont.java
package upper.duper.widget.circular.clock;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.TextView;
public class CustomFont extends TextView {
private static final String TAG = "CustomFont";
public CustomFont(Context context) {
super(context);
}
public CustomFont(Context context, AttributeSet attrs) {
super(context, attrs);
setCustomFont(context, attrs);
}
public CustomFont(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setCustomFont(context, attrs);
}
private void setCustomFont(Context ctx, AttributeSet attrs) {
TypedArray a = ctx.obtainStyledAttributes(attrs, R.styleable.CustomFont);
String customFont = a.getString(R.styleable.CustomFont_customFont);
setCustomFont(ctx, customFont);
a.recycle();
}
public boolean setCustomFont(Context ctx, String asset) {
Typeface tf = null;
try {
tf = Typeface.createFromAsset(ctx.getAssets(), asset);
} catch (Exception e) {
Log.e(TAG, "Could not get typeface: "+e.getMessage());
return false;
}
setTypeface(tf);
return true;
}
}
And this is my main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:updup="http://schemas.android.com/apk/res/upper.duper.widget.circular.clock"
android:background="#00000000"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<AnalogClock android:id="@+id/AnalogClock"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:dial="@drawable/widgetdial_white"
android:hand_hour="@drawable/widgethour"
android:hand_minute="@drawable/widgetminute"/>
<upper.duper.widget.circular.clock.CustomFont
android:id="@+id/TIME"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:textStyle="bold"
android:layout_gravity="center"
android:singleLine="true"
android:ellipsize="none"
android:textSize="12sp"
android:textAppearance="?android:attr/textAppearanceMedium"
android:padding="2dp"
updup:customFont="ALPNMAIN.TTF" />
And I put my custom font (ALPNMAIN.TTF) on assets folder already.
This is attrs.xml
<resources>
<declare-styleable name="CustomFont">
<attr name="customFont" format="string"/>
</declare-styleable>
</resources>
Now I feel this is not possible to have something "custom" for app widget.
Look here
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您似乎正在尝试在应用程序小部件的布局中使用自定义类。不支持此操作。
You appear to be attempting to use a custom class in a layout for an app widget. This is not supported.