在列表視圖上動畫背景

Question

我有一個ListView在每行中有2個TextView和一個CheckBox。

我有一個可繪製（線），我想一旦用戶選中該複選框的繪製將規模作爲在選中的複選框行的背景動畫，我能夠在我的getView（）方法在我的自定義適配器上，將drawable作爲背景進行動畫處理，但它也可以縮放2 TextView和CheckBox，並且我希望只有可繪製的背景將作爲動畫縮放，我該怎麼做？

這裏是我的getView（）的自定義適配器上方法：

public View getView(final int position, View convertView, final ViewGroup parent) { 
    final ViewHolder holder; 

    LayoutInflater inflater = LayoutInflater.from(context); 
    convertView = inflater.inflate(R.layout.listview_item_row, parent, false); 
    // cache view fields into the holder 
    holder = new ViewHolder(); 
    holder.itemTitle = (TextView) convertView.findViewById(R.id.itemTitle); 
    holder.itemQuantity = (TextView) convertView.findViewById(R.id.itemQuantity); 
    holder.itemCheck = (CheckBox) convertView.findViewById(R.id.itemCheck); 
    convertView.setTag(holder); 

    final Cursor cursor = getCursor(); 
    final View rowView = convertView; 
    cursor.moveToPosition(position); 
    holder.itemTitle.setText(cursor.getString((cursor.getColumnIndex(MySQLiteHelper.KEY_NAME)))); 
    holder.itemQuantity.setText(cursor.getString((cursor.getColumnIndex(MySQLiteHelper.KEY_QUANTITY)))); 
    holder.itemCheck.setChecked(cursor.getInt(cursor.getColumnIndex(MySQLiteHelper.KEY_CHECKED)) == 1); 

    holder.itemCheck.setOnCheckedChangeListener(new OnCheckedChangeListener() { 
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
       if (isChecked) { 
        cursor.moveToPosition(position); 
        itemsDataSource.updateItemCheckBox(1, cursor.getLong(cursor.getColumnIndex(MySQLiteHelper.KEY_ID))); 
        itemsDataSource.updateRoute(cursor.getString(cursor.getColumnIndex(MySQLiteHelper.KEY_NAME)), true); 
        Animation drawLine = AnimationUtils.loadAnimation(context, R.anim.item_done); 
        rowView.setBackgroundResource(R.drawable.line); 
        rowView.startAnimation(drawLine); 
        ShowListActivity.PRIORITY++; 
       } 
       else { 
        cursor.moveToPosition(position); 
        itemsDataSource.updateItemCheckBox(0, cursor.getLong(cursor.getColumnIndex(MySQLiteHelper.KEY_ID))); 
        itemsDataSource.updateRoute(cursor.getString(cursor.getColumnIndex(MySQLiteHelper.KEY_NAME)), false); 
        rowView.setBackgroundResource(0); 
        ShowListActivity.PRIORITY--; 
       } 

      } 
     }); 
    if (holder.itemCheck.isChecked()) rowView.setBackgroundResource(R.drawable.line); 
    else rowView.setBackgroundResource(0); 
    return rowView; 
} 
private static class ViewHolder { 
    TextView itemTitle; 
    TextView itemQuantity; 
    CheckBox itemCheck;  
} 

Answer 1

更新

我設法解決這個問題：

第一，我改變了自定義行佈局像這樣的文件：

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:id="@+id/frameRowLayout" 
android:layout_width="fill_parent" 
android:layout_height="fill_parent" 
android:paddingLeft="5dp" 
android:paddingRight="5dp" 
android:weightSum="10"> 

<LinearLayout android:id="@+id/rowLayout" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent" > 

     <CheckBox android:id="@+id/itemCheck" 
      android:layout_width="0dp" 
      android:layout_height="wrap_content" 
      android:layout_marginBottom="5dp" 
      android:layout_marginTop="5dp" 
      android:layout_weight="2" android:gravity="center" 
      android:focusable="false" 
      android:focusableInTouchMode="false" 
      android:singleLine="false" /> 

     <TextView android:id="@+id/itemTitle" 
      android:layout_width="0dp" 
      android:layout_height="fill_parent" 
      android:layout_marginBottom="5dp" 
      android:layout_marginTop="5dp" 
      android:layout_weight="6" 
      android:gravity="center" 
      android:text="some text1" 
      android:textColor="#2B89A8" 
      android:textSize="22dp" 
      android:textStyle="bold" /> 

     <TextView android:id="@+id/itemQuantity" 
      android:layout_width="0dp" 
      android:layout_height="fill_parent" 
      android:layout_marginBottom="5dp" 
      android:layout_marginTop="5dp" 
      android:layout_weight="2" 
      android:gravity="center" 
      android:text="some text2" 
      android:textColor="#2B89A8" 
      android:textSize="22dp" 
      android:textStyle="bold" /> 

</LinearLayout> 

<View 
    android:id="@+id/backgroundView" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" /> 

</FrameLayout> 

Framelayout的整個想法是視圖可以相互重疊，在LinearLayout重疊LinearLayout之後，視圖的視圖可以重疊。

然後我在自定義適配器改變了我的getView（）方法如下：

public View getView(final int position, View convertView, final ViewGroup parent) { 
    final ViewHolder holder; 

    LayoutInflater inflater = LayoutInflater.from(context); 
    convertView = inflater.inflate(R.layout.listview_item_row, parent, false); 
    // cache view fields into the holder 
    holder = new ViewHolder(); 
    holder.itemTitle = (TextView) convertView.findViewById(R.id.itemTitle); 
    holder.itemQuantity = (TextView) convertView.findViewById(R.id.itemQuantity); 
    holder.itemCheck = (CheckBox) convertView.findViewById(R.id.itemCheck); 
    holder.rowView = (View) convertView.findViewById(R.id.backgroundView); 
    convertView.setTag(holder); 

    final Cursor cursor = getCursor(); 
    cursor.moveToPosition(position); 
    holder.itemTitle.setText(cursor.getString((cursor.getColumnIndex(MySQLiteHelper.KEY_NAME)))); 
    holder.itemQuantity.setText(cursor.getString((cursor.getColumnIndex(MySQLiteHelper.KEY_QUANTITY)))); 
    holder.itemCheck.setChecked(cursor.getInt(cursor.getColumnIndex(MySQLiteHelper.KEY_CHECKED)) == 1); 

    holder.itemCheck.setOnCheckedChangeListener(new OnCheckedChangeListener() { 
      public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { 
       if (isChecked) { 
        cursor.moveToPosition(position); 
        itemsDataSource.updateItemCheckBox(1, cursor.getLong(cursor.getColumnIndex(MySQLiteHelper.KEY_ID))); 
        itemsDataSource.updateRoute(cursor.getString(cursor.getColumnIndex(MySQLiteHelper.KEY_NAME)), true); 
        Animation drawLine = AnimationUtils.loadAnimation(context, R.anim.item_done); 
        holder.rowView.setBackgroundResource(R.drawable.line); 
        holder.rowView.startAnimation(drawLine); 
        ShowListActivity.PRIORITY++; 
       } 
       else { 
        cursor.moveToPosition(position); 
        itemsDataSource.updateItemCheckBox(0, cursor.getLong(cursor.getColumnIndex(MySQLiteHelper.KEY_ID))); 
        itemsDataSource.updateRoute(cursor.getString(cursor.getColumnIndex(MySQLiteHelper.KEY_NAME)), false); 
        holder.rowView.setBackgroundResource(0); 
        ShowListActivity.PRIORITY--; 
       } 

      } 
     }); 
    if (holder.itemCheck.isChecked()) holder.rowView.setBackgroundResource(R.drawable.line); 
    else holder.rowView.setBackgroundResource(0); 
    return convertView; 
} 
private static class ViewHolder { 
    TextView itemTitle; 
    TextView itemQuantity; 
    CheckBox itemCheck; 
    View rowView; 
} 

希望你能明白我做了什麼。