Android getText from dynamically created adapter list view

Question

I got a custom adapter list view. Its layout like as follows

RelativeLayout
   LinearLayout
       TextView
       Button

Need to add a click event on that Button. In that event needs to take the text from that TextView and pass it to the next Activity.

I got the following code

holder.btn.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View vp) {

        LinearLayout rl = (LinearLayout)vp.getParent();
        TextView tv = (TextView)rl.findViewById(R.id.name);
        String text = tv.getText().toString();

    }
});

But it is crashing on String text = tv.getText().toString();

Any idea ?

Update

01-17 19:59:12.877: E/AndroidRuntime(16659): FATAL EXCEPTION: main
01-17 19:59:12.877: E/AndroidRuntime(16659): Process: com.atc.detectoract, PID: 16659
01-17 19:59:12.877: E/AndroidRuntime(16659): java.lang.NullPointerException
01-17 19:59:12.877: E/AndroidRuntime(16659):    at com.atc.detectoract.CustomAdapter$2.onClick(CustomAdapter.java:129)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at android.view.View.performClick(View.java:4438)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at android.view.View$PerformClick.run(View.java:18422)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at android.os.Handler.handleCallback(Handler.java:733)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at android.os.Handler.dispatchMessage(Handler.java:95)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at android.os.Looper.loop(Looper.java:136)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at android.app.ActivityThread.main(ActivityThread.java:5017)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at java.lang.reflect.Method.invokeNative(Native Method)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at java.lang.reflect.Method.invoke(Method.java:515)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
01-17 19:59:12.877: E/AndroidRuntime(16659):    at dalvik.system.NativeStart.main(Native Method)

Answer 1

But it is crashing on String text = tv.getText().toString();

You have a NullPointerException. tv is null

You can use setTag and getTag.

holder.btn.setTag(holder.tv.getText().toString()); // set tag 

Then

holder.btn.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View vp) {

        String value = (String)vp.getTag(); // get tag

    }
});