How to click or tap on a TextView text

Question

You can set the click handler in xml with these attribute:

android:onClick="onClick"
android:clickable="true"

Don't forget the clickable attribute, without it, the click handler isn't called.

main.xml

    ...

    <TextView 
       android:id="@+id/click"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"               
       android:text="Click Me"
       android:textSize="55sp"
       android:onClick="onClick"                
       android:clickable="true"/>
    ...

MyActivity.java

       public class MyActivity extends Activity {

          public void onClick(View v) {
            ...
          }  
       }

This may not be quite what you are looking for but this is what worked for what I'm doing. All of this is after my onCreate:

boilingpointK = (TextView) findViewById(R.id.boilingpointK);

boilingpointK.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        if ("Boiling Point K".equals(boilingpointK.getText().toString()))
            boilingpointK.setText("2792");
        else if ("2792".equals(boilingpointK.getText().toString()))
            boilingpointK.setText("Boiling Point K");
    }
});

OK I have answered my own question (but is it the best way?)

This is how to run a method when you click or tap on some text in a TextView:

package com.textviewy;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;

public class TextyView extends Activity implements OnClickListener {

TextView t ;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    t = (TextView)findViewById(R.id.TextView01);
    t.setOnClickListener(this);
}

public void onClick(View arg0) {
    t.setText("My text on click");  
    }
}

and my main.xml is:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 >
<LinearLayout android:id="@+id/LinearLayout01" android:layout_width="wrap_content"             android:layout_height="wrap_content"></LinearLayout>
<ListView android:id="@+id/ListView01" android:layout_width="wrap_content"   android:layout_height="wrap_content"></ListView>
<LinearLayout android:id="@+id/LinearLayout02" android:layout_width="wrap_content"   android:layout_height="wrap_content"></LinearLayout>

<TextView android:text="This is my first text"
 android:id="@+id/TextView01" 
 android:layout_width="wrap_content" 
 android:textStyle="bold"
 android:textSize="28dip"
 android:editable = "true"
 android:clickable="true"
 android:layout_height="wrap_content">
 </TextView>
 </LinearLayout>

from inside an activity that calls a layout and a textview, this click listener works:

setContentView(R.layout.your_layout);
TextView tvGmail = (TextView) findViewById(R.id.tvGmail);
String TAG = "yourLogCatTag";
tvGmail.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View viewIn) {
                try {
                    Log.d(TAG,"GMAIL account selected");
                } catch (Exception except) {
                    Log.e(TAG,"Ooops GMAIL account selection problem "+except.getMessage());
                }
            }
        });

the text view is declared like this (default wizard):

        <TextView
            android:id="@+id/tvGmail"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="@string/menu_id_google"
            android:textSize="30sp" />

and in the strings.xml file

<string name="menu_id_google">Google ID (Gmail)</string>