Text to Speech in Android

Android is providing a cool feature (from Android 1.6) called Text to Speech (TTS) which speaks the text in different languages. This tutorial explains how to work with android text to speech or android speech synthesis. In this tutorial i also explained changing the language type, pitch level and speed level.

activity_main.xml

---------------------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:showIn="@layout/activity_main"
    tools:context=".MainActivity"
    android:orientation="vertical">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/editText"
        android:hint="enter mame"
        android:layout_marginTop="5dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Speak"
        android:id="@+id/button"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="10dp" />
</LinearLayout>

MainActivity.Java

-----------------------------

package com.android.anil.texttospeech;

import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {
    Button speakbtn;
    EditText name;
    TextToSpeech textToSpeech;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        textToSpeech=new TextToSpeech(getApplicationContext(), new TextToSpeech.OnInitListener() {
            @Override
            public void onInit(int status) {
                Toast.makeText(MainActivity.this, "Text to Speech engine is intialized", Toast.LENGTH_SHORT).show();
            }
        });
        speakbtn=(Button)findViewById(R.id.button);
        name=(EditText)findViewById(R.id.editText);
        speakbtn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String s1=name.getText().toString();
                textToSpeech.speak(s1,RESULT_OK,null);
            }
        });
    }
}

Output is:

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VideoView example in Android

In this tutorial, you will learn how to stream a remote video by using a MediaController and display it into a VideoView in your Android Application. MediaController is a controller for Media Player such as functions like Play/Pause, Rewind, Fast Forward and a progress slider.

activity_main.xml

----------------------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:showIn="@layout/activity_main"
    tools:context=".MainActivity">


    <VideoView
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:id="@+id/videoView" />
</LinearLayout>

MainActivity.Java

-----------------------------

package com.android.anil.videoplayer;

import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.widget.MediaController;
import android.widget.VideoView;

public class MainActivity extends AppCompatActivity {
VideoView videoView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        videoView=(VideoView)findViewById(R.id.videoView);
        videoView.setVideoURI(Uri.parse("android.resource://"+getPackageName()+"/"+R.raw.sample1));
        videoView.setMediaController(new MediaController(this));
        videoView.start();
    }
}

Output is:

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Android Media Player Example

Android provides many ways to control playback of audio/video files and streams. One of this way is through a class called MediaPlayer

activity_main.xml

---------------------------

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:showIn="@layout/activity_main" tools:context=".MainActivity"
    android:orientation="vertical">


    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Play"
        android:id="@+id/button"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="25dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Pause"
        android:id="@+id/button2"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="25dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Stop"
        android:id="@+id/button3"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="25dp" />
</LinearLayout>

MainActivity.Java

------------------------------

package com.android.anil.androidaudio;

import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {
    Button playbtn,pausebtn,stopbtn;
    MediaPlayer mediaPlayer;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        mediaPlayer=MediaPlayer.create(getApplicationContext(),R.raw.a);
        playbtn=(Button)findViewById(R.id.button);
        pausebtn=(Button)findViewById(R.id.button2);
        stopbtn=(Button)findViewById(R.id.button3);
        playbtn.setOnClickListener(this);
        pausebtn.setOnClickListener(this);
        stopbtn.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.button:
                mediaPlayer.start();
                break;
            case R.id.button2:
                mediaPlayer.pause();
                break;
            case R.id.button3:
                mediaPlayer.stop();
                mediaPlayer=MediaPlayer.create(getApplicationContext(),R.raw.a);
                break;
        }
    }

    @Override
    protected void onPause() {
        mediaPlayer.pause();
        super.onPause();
    }
}

Output :

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