Question

Ok basically I have everything set up and I have set up my onClick method many times, but this time it is set up in my main.xml file

    <Button 
    android:layout_alignParentRight="true"
    android:layout_height="40dip" 
    android:layout_width="80dip" 
    android:id="@+id/speak" 
    android:enabled="true"
    android:visible="true"
    android:text="Speak" > 

</Button>

obviously it has other things to define its layout but that is one of the xml layouts inside my button, and for some reason every time I click on the button, it just closes the entire application, Why is that?
also If I set it up to add a onClickListener then the button just does nothing.

I would set up my onClick listener like this

    speak.setOnClickListener(this);
     public void onClick(View v) {
    // TODO Auto-generated method stub
    switch (v.getId()) {
    case R.id.speak:
        doSpeak();
        break;
    }
}

and it still doesnt work…. So i just dont know what I am doing wrong

     package com.write.it;

    import android.app.Activity;
    import android.content.Intent;
    import android.media.MediaPlayer;
    import android.os.Bundle;
    import android.speech.tts.TextToSpeech;
    import android.speech.tts.TextToSpeech.OnInitListener;
    import android.util.Log;
    import android.view.View;
    import android.widget.Button;
    import android.widget.EditText;

    public class Speech extends Activity implements OnInitListener {
private EditText words = null;
private Button speakBtn = null;
private static final int REQ_TTS_STATUS_CHECK = 0;
private static final String TAG = "TTS Demo";
    private TextToSpeech mTts = null;
    private MediaPlayer player = null;

/** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    words = (EditText)findViewById(R.id.wordsToSpeak);
    speakBtn = (Button)findViewById(R.id.speak);



    // Check to be sure that TTS exists and is okay to use
    Intent checkIntent = new Intent();
    checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
    startActivityForResult(checkIntent, REQ_TTS_STATUS_CHECK);
}

public void doButton(View view) {
    switch(view.getId()) {
    case R.id.speak:
        mTts.speak(words.getText().toString(), TextToSpeech.QUEUE_ADD, null);
        break;

        }
            }

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == REQ_TTS_STATUS_CHECK) {
        switch (resultCode) {
        case TextToSpeech.Engine.CHECK_VOICE_DATA_PASS:
            // TTS is up and running
            mTts = new TextToSpeech(this, this);
            Log.v(TAG, "Pico is installed okay");
            break;
        case TextToSpeech.Engine.CHECK_VOICE_DATA_BAD_DATA:
        case TextToSpeech.Engine.CHECK_VOICE_DATA_MISSING_DATA:
        case TextToSpeech.Engine.CHECK_VOICE_DATA_MISSING_VOLUME:
            // missing data, install it
            Log.v(TAG, "Need language stuff: " + resultCode);
            Intent installIntent = new Intent();
            installIntent.setAction(
                TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
            startActivity(installIntent);
            break;
        case TextToSpeech.Engine.CHECK_VOICE_DATA_FAIL:
        default:
            Log.e(TAG, "Got a failure. TTS apparently not available");
        }
    }
    else {
        // Got something else
    }
}

public void onInit(int status) {
    // Now that the TTS engine is ready, we enable buttons
    if( status == TextToSpeech.SUCCESS) {
        speakBtn.setEnabled(true);
        }
}

@Override
public void onPause()
{
    super.onPause();
    // if we're losing focus, stop playing
    if(player != null) {
        player.stop();
    }
    // if we're losing focus, stop talking
    if( mTts != null)
        mTts.stop();
}

@Override
public void onDestroy()
{
    super.onDestroy();
    if(player != null) {
        player.release();
    }
    if( mTts != null) {
        mTts.shutdown();
    }
        }
    }

I mean am i not setting the volume or setting or telling it to speak?!?!?, am I not telling it to do something it is supposed to do?….. the volume on my phone is on and the media volume is up, I have an HTC evo 4g so it should work…..
here Ill add another one with utterance and the onClick Method

    package com.write.it;


    import java.util.HashMap;
    import java.util.Locale;
    import java.util.StringTokenizer;
    import android.content.Intent;
    import android.os.Bundle;
    import android.speech.tts.TextToSpeech;
    import android.speech.tts.TextToSpeech.OnInitListener;
    import android.speech.tts.TextToSpeech.OnUtteranceCompletedListener;
    import android.util.Log;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.widget.Button;
    import android.widget.EditText;


    public class Speech extends WriteitActivity implements OnInitListener, OnUtteranceCompletedListener {
private EditText words = null;
private Button speakBtn = null;
     private static final int REQ_TTS_STATUS_CHECK = 0;
private static final String TAG = "Word Guesser";
    private TextToSpeech mTts;

    private int uttCount = 0;
    private HashMap<String, String> params = new HashMap<String, String>();

/** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    words = (EditText)findViewById(R.id.wordsToSpeak);
    speakBtn = (Button)findViewById(R.id.speak);
    speakBtn.setOnClickListener((OnClickListener) this);
    mTts.isLanguageAvailable(Locale.US);



    // Check to be sure that TTS exists and is okay to use
    Intent checkIntent = new Intent();
    checkIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
    startActivityForResult(checkIntent, REQ_TTS_STATUS_CHECK);
    }

    public void onClick(View v) {
    // TODO Auto-generated method stub
    switch (v.getId()) {
    case R.id.speak:
        doSpeak();
        break;
    }
}

public void doSpeak() {
    StringTokenizer st = new StringTokenizer(words.getText().toString(),",.");
    while (st.hasMoreTokens()) {
        params.put(TextToSpeech.Engine.KEY_PARAM_UTTERANCE_ID,
                String.valueOf(uttCount++));
        mTts.speak(getString(R.id.wordsToSpeak), TextToSpeech.QUEUE_ADD, null);
        mTts.speak(getString(R.id.wordsToSpeak), TextToSpeech.SUCCESS, null);

     }



}

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == REQ_TTS_STATUS_CHECK) {
        switch (resultCode) {
        case TextToSpeech.Engine.CHECK_VOICE_DATA_PASS:
            // TTS is up and running
            mTts = new TextToSpeech(this, this);
            Log.v(TAG, "Pico is installed okay");
            break;
        case TextToSpeech.Engine.CHECK_VOICE_DATA_BAD_DATA:
        case TextToSpeech.Engine.CHECK_VOICE_DATA_MISSING_DATA:
        case TextToSpeech.Engine.CHECK_VOICE_DATA_MISSING_VOLUME:
            // missing data, install it
            Log.v(TAG, "Need language stuff: " + resultCode);
            Intent installIntent = new Intent();
            installIntent.setAction(
                TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
            startActivity(installIntent);
            break;
        case TextToSpeech.Engine.CHECK_VOICE_DATA_FAIL:
        default:
            Log.e(TAG, "Got a failure. TTS not available");
        }
    }
    else {
        // Got something else
    }
}

public void onInit(int status) {
    // Now that the TTS engine is ready, we enable the button
    if( status == TextToSpeech.SUCCESS) {
        mTts.setOnUtteranceCompletedListener(this);
}
}

public void onPause()
{
    super.onPause();
    // if we're losing focus, stop talking
    if( mTts != null)
        mTts.stop();
}

@Override
public void onDestroy()
{
    super.onDestroy();
    mTts.shutdown();
}

public void onUtteranceCompleted(String uttId) {
    Log.v(TAG, "Got completed message for uttId: " + uttId);
    Integer.parseInt(uttId);
}



}

Answer 1

There are many things mixed up in your code, especially the part where you check the engine with a StartActivityforResult().

Please see this example of a working TTS: http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/app/TextToSpeechActivity.html

Also you did not assign any ID to the button (apparently?) Could it be, that another button is using the ID?

/edit:
First of all, merge both Activities. If you call onCreate()again, it will override the previous one. Then add implements OnClickListener and replace

speakBtn.setOnClickListener((OnClickListener) this);

with

speakBtn.setOnClickListener(this);

Eclipse will tell you that you need to add an unimplemented method.