I am developing an application which will contain the lists of songs
every row has play image .On click of this image it should change to a
green one (like on and off), but if there is another image in
different row is "on" it should get off.
I am able to find the current position and the previous position of
the row whose image is "on" but based on the position of the row i am
not able to get the corresponding imageview .
I am trying with the setTag() and getTag() method but get tag method
is returning null for me.
Any help would be appreciated.Please bail me out of this.
below is my code
package com.fstech.cslist;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ToggleButton;
public class CustomList extends Activity {
ArrayList<String> pname;
ListView projectList;
private LayoutInflater mInflater;
private boolean[] itemToggled;
int Position;
ImageView play;
int size;
int previousposn=0;
int currentposn=0;
int cPosition;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
projectList = (ListView) findViewById(R.id.projectlist);
pname = new ArrayList<String>();
pname.add("first");
pname.add("fssecond");
pname.add("third");
pname.add("fourth");
pname.add("fifthe");
pname.add("sixth");
mInflater = (LayoutInflater)
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
size = pname.size();
itemToggled = new boolean[pname.size()];
Arrays.fill(itemToggled, false);
projectList.setAdapter(new ArrayAdapter<String>(this,
R.layout.list_item,pname){
ArrayList<String> ar =new ArrayList<String>();
@Override
public View getView(int position, View convertView,
ViewGroup
parent) {
Position=position;
View row;
if (null == convertView) {
row =
mInflater.inflate(R.layout.list_item, null);
} else {
row = convertView;
}
TextView tv = (TextView)
row.findViewById(android.R.id.text1);
tv.setText(getItem(position));
play=(ImageView)row.findViewById(R.id.roundplay);
play.setBackgroundResource(R.drawable.roundplay);
ImageView icon = (ImageView)
row.findViewById(R.id.icon);
icon.setImageResource(R.drawable.roundplay);
play.setTag(String.valueOf(position));
play.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method
stub
cPosition=Integer.parseInt(v.getTag().toString());
previousposn=currentposn;
currentposn=cPosition;
View view
=v.findViewWithTag(v.getTag(Position));
//(View) play.getTag(1);
if(view!=null)
System.out.println("Tag is not
returning object");
else
System.out.println("Tag
is not returning object");
}
});
return row;
}
});
projectList.setOnItemClickListener(new
AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> listView, View
itemView, int position, long id) {
itemToggled[position] = ! itemToggled[position];
}
});
}
}
**********************************************row.xml**************************
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android";
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/listrow"
>
<ImageView
android:id="@+id/icon"
android:layout_width="80dp"
android:layout_height="80dp"
android:paddingLeft="5dp"
android:paddingRight="2dp"
android:gravity="center_vertical"
/>
<TextView
android:id="@+id/text1"
android:layout_width="wrap_content"
android:paddingLeft="10dp"
android:textSize="20sp"
android:layout_centerVertical="true"
android:layout_toRightOf="@+id/icon"
android:layout_height="wrap_content"
android:textColor="#000000"
></TextView>
<ImageView
android:id="@+id/roundplay"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:paddingRight="5dp"
></ImageView>
</RelativeLayout>
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