MainActivity.java
package com.example.androidtonegenerator;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ToggleButton;
import android.media.AudioManager;
import android.media.ToneGenerator;
import android.os.Bundle;
public class MainActivity extends ActionBarActivity {
Button btnGenTone0;
ToggleButton tgbtnGenTone1;
ToneGenerator toneGenerator1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnGenTone0 = (Button)findViewById(R.id.gentone0);
tgbtnGenTone1 = (ToggleButton)findViewById(R.id.gentone1);
btnGenTone0.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
int streamType = AudioManager.STREAM_MUSIC;
int volume = 50;
ToneGenerator toneGenerator = new ToneGenerator(streamType, volume);
int toneType = ToneGenerator.TONE_DTMF_0;
int durationMs = 500;
toneGenerator.startTone(toneType, durationMs);
}});
toneGenerator1 = new ToneGenerator(AudioManager.STREAM_MUSIC, 50);
tgbtnGenTone1.setOnCheckedChangeListener(new OnCheckedChangeListener(){
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
if(isChecked){
toneGenerator1.startTone(ToneGenerator.TONE_DTMF_1);
}else{
toneGenerator1.stopTone();
}
}});
}
}
activity_main.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="com.example.androidtonegenerator.MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<Button
android:id="@+id/gentone0"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Generate Tone: TONE_DTMF_0" />
<ToggleButton
android:id="@+id/gentone1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textOn="Stop Tone: TONE_DTMF_1"
android:textOff="Start Tone: TONE_DTMF_1" />
</LinearLayout>
Next:
- DTMF Piano using ToneGenerator
- Sound samples generated by android.media.ToneGenerator
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