<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+android:id/widget_frame"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:minHeight="?android:attr/listPreferredItemHeight"
android:gravity="center_vertical"
android:paddingRight="?android:attr/scrollbarSize">
<ImageView
android:id="@+id/icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="6dip"
android:layout_marginRight="6dip"
android:layout_gravity="center" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dip"
android:layout_marginRight="6dip"
android:layout_marginTop="6dip"
android:layout_marginBottom="6dip"
android:layout_weight="1">
<TextView
android:id="@+android:id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:textAppearance="?android:attr/textAppearanceLarge"
android:ellipsize="marquee"
android:fadingEdge="horizontal" />
<TextView
android:id="@+android:id/summary"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@android:id/title"
android:layout_alignLeft="@android:id/title"
android:textAppearance="?android:attr/textAppearanceSmall"
android:maxLines="2" />
</RelativeLayout>
<CheckBox
android:id="@+android:id/checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="4dip"
android:layout_gravity="center_vertical"
android:focusable="false"
android:clickable="false" />
</LinearLayout>
下面是用到的java类文件。
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.preference.CheckBoxPreference;
import android.util.AttributeSet;
import android.view.View;
import android.widget.ImageView;
import com.jakewharton.wakkawallpaper.R;
public class IconCheckBoxPreference extends CheckBoxPreference {
private Drawable mIcon;
public IconCheckBoxPreference(final Context context, final AttributeSet attrs, final int defStyle) {
super(context, attrs, defStyle);
this.setLayoutResource(R.layout.icon_checkbox_preference);
this.mIcon = context.obtainStyledAttributes(attrs, R.styleable.IconPreference, defStyle, 0).getDrawable(R.styleable.IconPreference_icon);
}
public IconCheckBoxPreference(final Context context, final AttributeSet attrs) {
this(context, attrs, 0);
}
@Override
protected void onBindView(final View view) {
super.onBindView(view);
final ImageView imageView = (ImageView)view.findViewById(R.id.icon);
if ((imageView != null) && (this.mIcon != null)) {
imageView.setImageDrawable(this.mIcon);
}
}
/**
* Sets the icon for this Preference with a Drawable.
*
* @param icon The icon for this Preference
*/
public void setIcon(final Drawable icon) {
if (((icon == null) && (this.mIcon != null)) || ((icon != null) && (!icon.equals(this.mIcon)))) {
this.mIcon = icon;
this.notifyChanged();
}
}
/**
* Returns the icon of this Preference.
*
* @return The icon.
* @see #setIcon(Drawable)
*/
public Drawable getIcon() {
return this.mIcon;
}
}
如果有需要做类似功能的朋友们可以参照此例进行修改。
