如何更改ExpandableListView组指示器位置？

Question

我想用填充将ExpandableListView 组指示器更改为右侧.

我使用自定义适配器来加载数据ExpandableListView.

这是我的ExpandableListViewxml.

<ExpandableListView
    android:id="@+id/Ex_offers"
    android:layout_width="250dp"
    android:layout_height="400dp"
    android:layout_alignParentBottom="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentRight="true"
    android:childDivider="#00000000"
    android:groupIndicator="@drawable/settings_selector"
    android:listSelector="@android:color/transparent">

</ExpandableListView>

这是GroupViewxml

 <TextView
        android:id="@+id/lblListHeadertwo"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:background="@drawable/transperant_bar"
        android:fontFamily="Lato"
        android:paddingLeft="15dp"
        android:textColor="#daac56"
        android:textStyle="bold"
        android:textSize="17sp"
        android:paddingTop="8dp"  />

这是ChildView xml

 <TextView
        android:id="@+id/text_offers"
        android:layout_width="300dp"
        android:layout_height="20dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:background="@drawable/transperant_bar"
        android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft"
        android:textColor="#daac56"
        android:textSize="14sp"/>

    <ImageView
        android:id="@+id/img"
        android:layout_width="15dp"
        android:layout_height="15dp"
        android:layout_marginLeft="12dp"/>

这是输出图像,我想为此指标设置保证金.

Answer 1

setIndicatorBounds(int,int)对Android 4.3无效.他们引入了一个新方法setIndicatorBoundsRelative(int,int),它适用于4.3.

public int GetPixelFromDips(float pixels) {
    // Get the screen's density scale 
    final float scale = getResources().getDisplayMetrics().density;
    // Convert the dps to pixels, based on density scale
    return (int) (pixels * scale + 0.5f);
}

@Override
public void onWindowFocusChanged(boolean hasFocus) {
    super.onWindowFocusChanged(hasFocus);
    DisplayMetrics metrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);
    int width = metrics.widthPixels; 
    if(android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.JELLY_BEAN_MR2) {
        explvList.setIndicatorBounds(width-GetPixelFromDips(35), width-GetPixelFromDips(5));
    } else { 
        explvList.setIndicatorBoundsRelative(width-GetPixelFromDips(35), width-GetPixelFromDips(5));
    }
}