how to show an alphabetical scrollview on the right side of a ListView

Question

I am trying to create a an alphabetical scrollview to be diplayed on the right side of a listview to enable quick scrolling.i have done as instructed from this question How to create an alphabetical scrollbar displaying all the letter in android?

i have followed the above steps but on clicking the letters nothing happens,kindly assist.here's my code

java

  public void quickScroll(View v) {
    String firstLetter = (String) v.getTag();
   int index = 0;

   List<String> s=Arrays.asList("A","B","C","D","E","F","G","H","I","J","K","L","M","N","O",
           "P","Q","R","S","T","U","V","W","X","Y","Z");
    if (s != null) {
        for (String string : s) {
            if (string.startsWith(firstLetter)) {
                index = s.indexOf(string);

                break;
            }
        }
    }
    lv.setSelectionFromTop(index, 0);
    //lv is my listview
}

and the xml below:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >

<ListView
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_above="@+id/button1"
   android:id="@+id/lv"/>
<LinearLayout android:orientation="vertical"
    android:layout_width="wrap_content" android:layout_height="wrap_content"
    android:layout_alignParentRight="true"  android:background="@android:color/transparent" >

    <TextView
        android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/A" android:text="A" android:tag="A" 
       android:clickable="true"  android:onClick="quickScroll"

       />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/B" android:text="B" android:tag="B"
          android:clickable="true"  android:onClick="quickScroll"
        />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/C" android:text="C" android:tag="C"
          android:clickable="true"  android:onClick="quickScroll"
     />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/D" android:text="D" android:tag="D"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/E" android:text="E" android:tag="E"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/F" android:text="F" android:tag="F"
          android:clickable="true"  android:onClick="quickScroll"
        />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/G" android:text="G" android:tag="G"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/H" android:text="H" android:tag="H"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/I" android:text="I" android:tag="I"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/J" android:text="J" android:tag="J"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/K" android:text="K" android:tag="K"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/L" android:text="L" android:tag="L"
          android:clickable="true"  android:onClick="quickScroll"
        />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent" 
        android:id="@+id/M" android:text="M" android:tag="M"
         android:clickable="true"  android:onClick="quickScroll"
        />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/N" android:text="N" android:tag="N"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/O" android:text="O" android:tag="O"
          android:clickable="true"  android:onClick="quickScroll"
      />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/P" android:text="P" android:tag="P"
          android:clickable="true"  android:onClick="quickScroll"
        />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/Q" android:text="Q" android:tag="Q"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/R" android:text="R" android:tag="R"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/S" android:text="S" android:tag="S"
          android:clickable="true"  android:onClick="quickScroll"
    />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/T" android:text="T" android:tag="T"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/U" android:text="U" android:tag="U"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/V" android:text="V" android:tag="V"
          android:clickable="true"  android:onClick="quickScroll"
        />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/W" android:text="W" android:tag="W"
          android:clickable="true"  android:onClick="quickScroll"
        />
    <TextView
          android:layout_width="match_parent" android:layout_height="match_parent"
         android:id="@+id/X" android:text="X" android:tag="X"
          android:clickable="true"  android:onClick="quickScroll"
        />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/Y" android:text="Y" android:tag="Y"
          android:clickable="true"  android:onClick="quickScroll"
       />
    <TextView 
          android:layout_width="match_parent" android:layout_height="match_parent"
        android:id="@+id/Z" android:text="Z" android:tag="Z"
          android:clickable="true"  android:onClick="quickScroll"
        />

</LinearLayout>
 <Button
     android:id="@+id/button1"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:layout_alignParentBottom="true"
     android:layout_centerHorizontal="true"
     android:text="Done" />

</RelativeLayout>

score 0 · Answer 1 · edited Jul 06 '15 at 12:07

0

@bloodyshadow i am just asking you to apply OnClickListener on TextViews first you apply that it will work

you were using onClick attribute in xml that not work fine with that

edited Jul 06 '15 at 12:07

Shahzad Barkati

2,532
6
25
33

answered Jul 06 '15 at 10:45

Atiq ur rehman

17
1
8

Better you can comment rather than putting answers http://stackoverflow.com/help/how-to-answer – Sreehari Aug 18 '16 at 06:54

score -1 · Answer 2 · answered Jul 01 '15 at 17:40

-1

you can solve this issue by apply "OnCLickListener" in java class xml onClick not working here

answered Jul 01 '15 at 17:40

Atiq ur rehman

17
1
8

Do not post single line answer. Add some codes too. – Shahzad Barkati Jul 01 '15 at 18:02
TextView text=findViewById(R.id.textid) text.SetOnClickLintener( new OnClickListener(){ OnClick(View v){ } }); – Atiq ur rehman Jul 06 '15 at 10:46

how to show an alphabetical scrollview on the right side of a ListView

2 Answers2