Initial Contribution

src/com/android/settings/BluetoothListItem.java

@@ -0,0 +1,72 @@
+package com.android.settings;
+
+import android.content.Context;
+import android.preference.Preference;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+
+import java.util.Map;
+
+/**
+ * This class extends Preference to display bluetooth status icons. One
+ * icon specifies the connection/pairing status that is right-aligned.
+ * An optional headset icon can be added to its left as well.
+ */
+public class BluetoothListItem extends Preference {
+
+    private boolean mIsHeadset;
+    private int mWeight;
+    
+    public BluetoothListItem(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        setWidgetLayoutResource(R.layout.preference_widget_btdevice_status);
+    }
+
+    private void updateIcons(View view) {
+        ImageView headsetView = (ImageView) view.findViewById(R.id.device_headset);
+        headsetView.setVisibility(mIsHeadset ? View.VISIBLE : View.GONE);
+    }
+
+    @Override
+    public void onBindView(View view) {
+        super.onBindView(view);
+        updateIcons(view);
+    }
+
+    /**
+     * Set whether the device is of headset type
+     * @param headset whether or not the headset icon should be shown
+     */
+    public void setHeadset(boolean headset) {
+        mIsHeadset = headset;
+        notifyChanged();
+    }
+
+    /**
+     * Sets the weight for ordering by signal strength or importance
+     * @param weight the ordering weight
+     */
+    public void setWeight(int weight) {
+        mWeight = weight;
+    }
+
+    /**
+     * Returns the currently set ordering weight
+     * @return the current ordering weight
+     */
+    public int getWeight() {
+        return mWeight;
+    }
+    
+    @Override
+    public int compareTo(Preference another) {
+        int diff = ((BluetoothListItem)another).mWeight - mWeight;
+        // Let the new one be after the old one, if they are the same weight
+        // TODO: Implement a more reliable way to consistently order items of
+        // the same weight
+        if (diff == 0) diff = 1;
+        return diff;
+    }
+}