How to click or tap on a TextView text

Question

I know this is so easy (doh...) but I am looking for a way to run a method on tapping or clicking a TextView line of text in an Android App.

I keep thinking about bu

Answer 1

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>

Answer 2

To click on a piece of the text (not the whole TextView), you can use Html or Linkify (both create links that open urls, though, not a callback in the app).

Linkify

Use a string resource like:

<string name="links">Here is a link: http://www.stackoverflow.com</string>

Then in a textview:

TextView textView = ...
textView.setText(R.string.links);
Linkify.addLinks(textView, Linkify.ALL);

Html

Using Html.fromHtml:

<string name="html">Here you can put html &lt;a href="http://www.stackoverflow.com"&gt;Link!&lt;/&gt;</string>

Then in your textview:

textView.setText(Html.fromHtml(getString(R.string.html)));

Answer 3

Although you can resolve the problem by setting the listener to textview, it's recommended not to. You should use flat button as it is a subclass of Button and it provides many attributes which TextView doesn't.

---

To use flat button, add style="?android:attr/borderlessButtonStyle" attribute -

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="DONE"
    style="?android:attr/borderlessButtonStyle"/>

Answer 4

You can use TextWatcher for TextView, is more flexible than ClickLinstener (not best or worse, only more one way).

holder.bt_foo_ex.addTextChangedListener(new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) {
            // code during!

        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            // code before!

        }

        @Override
        public void afterTextChanged(Editable s) {
            // code after!

        }
    });

Answer 5

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");
    }
});

Answer 6

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>