example of camera and audio intents

MainActivity.java
=========================
package com.example.zeevm.mypersonalassistance;

import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.speech.RecognizerIntent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

import java.io.File;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    //identify our system service
    final int AUDIO_RESULT=100;
    final int IMAGE_RESULT=101;

    TextView txtRes;
    ImageView btnMic;
    ImageView imgpic;
    ImageView btnCam;

    Context context;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        setPointer();
    }

    private void setPointer()
    {
        this.context=this;
        txtRes=(TextView)findViewById(R.id.txtMic);
        btnMic=(ImageView)findViewById(R.id.btnMic);
        btnMic.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                sendAudio();
            }
        });
        imgpic=(ImageView)findViewById(R.id.imgPic);
        btnCam.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                getPic();
            }
        });
    }

    private void getPic()
    {
        //start intent of camera
        Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
        //create a new file for our picture
        File file=new File(Environment.getExternalStorageDirectory()+File.separator+"image.jpg");
        //set a pointer to our file, so we will get in onActivityResult, this file with the image, and not a thumbNail
        intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
        //start activity for result
        startActivityForResult(intent,IMAGE_RESULT);
    }


    private void sendAudio()
    {
        //we are going to existing activity from the android os itself.
        Intent intent=new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
        intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
                RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
        intent.putExtra(RecognizerIntent.EXTRA_PROMPT,"Im ready my master..");
        startActivityForResult(intent,AUDIO_RESULT);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode==RESULT_OK) {
            //handle audio result
            if (requestCode == AUDIO_RESULT) {
                String strRes = "";
                Bundle bundle = data.getExtras();
                final ArrayList<String> matches = bundle.getStringArrayList(RecognizerIntent.EXTRA_RESULTS);
                for (int counter = 0; counter < matches.size(); counter += 1) {
                    strRes += matches.get(counter) + "\n";
                }
                txtRes.setText(strRes);
            }
            //handle image result
            if (requestCode == IMAGE_RESULT)
            {
                Bitmap bitmap = null;
                Bitmap thumb = null;
                try
                {
                    //get our saved file into a bitmap object.
                    File file = new File(Environment.getExternalStorageDirectory()+File.separator + "image.jpg");
                    //set size of the picture
                    bitmap = decodeSampleBitmapFromFile(file.getAbsolutePath(),4096,2304);
                    thumb = decodeSampleBitmapFromFile(file.getAbsolutePath(),160,120);
                    imgpic.setImageBitmap(bitmap);
                }
                catch (Exception e)
                {
                    Toast.makeText(context, "Error in getting image....", Toast.LENGTH_SHORT).show();
                }
            }
        }
    }

    //method to decode an image file (made by zeev)
    public static Bitmap decodeSampleBitmapFromFile (String path, int reqWidth, int reqHeight)
    {
        //first we decode with inJustDecideBounds=true to check dimensions
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds=true;
        BitmapFactory.decodeFile(path,options);

        //calculate inSampleSize, raw height and width of image
        final int height = options.outHeight;
        final int width = options.outWidth;
        options.inPreferredConfig = Bitmap.Config.RGB_565;
        int inSampleSize = 1;

        if (height>reqHeight)
        {
            inSampleSize=Math.round((float) height / (float)reqHeight);
        }

        int expectedWidth = width/inSampleSize;

        if (expectedWidth > reqWidth)
        {
            inSampleSize = Math.round((float)width/(float)reqWidth);
        }

        options.inSampleSize=inSampleSize;

        //decode bitmap with inSampleSize set
        options.inJustDecodeBounds=false;

        //return our updated picture
        return BitmapFactory.decodeFile(path,options);
    }
}








activity_main.xml
======================
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#fff"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="150dp"
        android:orientation="horizontal">
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:src="@drawable/mic"
            android:id="@+id/btnMic"
            android:layout_weight="1"/>
        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/camera"
            android:layout_weight="1"
            android:id="@+id/btnCam"/>
    </LinearLayout>

    <TextView
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:text="\nready to get your command my master....."
        android:id="@+id/txtMic"/>

    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/imgPic"/>
</LinearLayout>


Manifest (add this permissions)
=============================
  <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
    <uses-permission android:name="android.permission.CAPTURE_AUDIO_OUTPUT"/>
    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>