آموزش دوربین در اندروید

Intent intent = new ‎Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);

startActivityForResult(intent,0)

package com.example.sairamkrishna.myapplication;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;

import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;

import android.graphics.Bitmap;
import android.os.BatteryManager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;

import android.view.Menu;
import android.view.MenuItem;
import android.view.View;

import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.Set;

public class MainActivity extends ActionBarActivity {
   Button b1,b2;
   ImageView iv;
   
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      
      b1=(Button)findViewById(R.id.button);
      iv=(ImageView)findViewById(R.id.imageView);
      
      b1.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View v) {
            Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
            startActivityForResult(intent, 0);
         }
      });
   }
   
   protected void onActivityResult(int requestCode, int resultCode, Intent data) {
      // TODO Auto-generated method stub
      super.onActivityResult(requestCode, resultCode, data);
      
      Bitmap bp = (Bitmap) data.getExtras().get("data");
      iv.setImageBitmap(bp);
   }
   
   @Override
   protected void onDestroy() {
      super.onDestroy();
   }
   
   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.menu_main, menu);
      return true;
   }
   
   @Override
   public boolean onOptionsItemSelected(MenuItem item) {
      // Handle action bar item clicks here. The action bar will
      // automatically handle clicks on the Home/Up button, so long
      // as you specify a parent activity in AndroidManifest.xml.
      
      int id = item.getItemId();
      
      //noinspection SimplifiableIfStatement
      if (id == R.id.action_settings) {
         return true;
      }
      return super.onOptionsItemSelected(item);
   }
}

<RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
   android:paddingRight="@dimen/activity_horizontal_margin"
   android:paddingTop="@dimen/activity_vertical_margin"
   android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
   
   <TextView android:text="Camera Example" android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/textview"
      android:textSize="35dp"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true" />
      
   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Tutorials point"
      android:id="@+id/textView"
      android:layout_below="@+id/textview"
      android:layout_centerHorizontal="true"
      android:textColor="#ff7aff24"
      android:textSize="35dp" />
      
   <ImageView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/imageView"
      android:src="@drawable/abc"
      android:layout_below="@+id/textView"
      android:layout_centerHorizontal="true" />
      
   <Button
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="camera"
      android:id="@+id/button"
      android:layout_below="@+id/imageView"
      android:layout_centerHorizontal="true"
      android:layout_marginTop="86dp" />
      
</RelativeLayout>

<resources>
   <string name="app_name">My Application</string>
   <string name="hello_world">Hello world!</string>
   <string name="action_settings">Settings</string>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="com.example.camera"
   android:versionCode="1"
   android:versionName="1.0" >

   <application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name"
      android:theme="@style/AppTheme" >
      
      <activity
         android:name="com.example.sairamkrishna.myapplication.MainActivity"
         android:label="@string/app_name" >
         
         <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
         
     </activity>
     
   </application>
</manifest>

Camera object = null;
object = Camera.open(); 

public class ShowCamera extends SurfaceView implements SurfaceHolder.Callback {
   private Camera theCamera;
   
   public void surfaceCreated(SurfaceHolder holder) {
      theCamera.setPreviewDisplay(holder);
      theCamera.startPreview();
   }
   
   public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3){
   }
   
   public void surfaceDestroyed(SurfaceHolder arg0) {
   }
}    

package com.example.sairamkrishna.myapplication;

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;

import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;

import android.graphics.Bitmap;
import android.hardware.Camera;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;

import android.os.BatteryManager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;

import android.view.Menu;
import android.view.MenuItem;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;

import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

import java.util.ArrayList;
import java.util.Set;

public class MainActivity extends Activity implements SurfaceHolder.Callback {
   Camera camera;
   SurfaceView surfaceView;
   SurfaceHolder surfaceHolder;
   
   Camera.PictureCallback rawCallback;
   Camera.ShutterCallback shutterCallback;
   Camera.PictureCallback jpegCallback;
   
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      
      surfaceView = (SurfaceView) findViewById(R.id.surfaceView);
      surfaceHolder = surfaceView.getHolder();
      
      surfaceHolder.addCallback(this);
      surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
      
      jpegCallback = new PictureCallback() {
         
         @Override
         public void onPictureTaken(byte[] data, Camera camera) {
            FileOutputStream outStream = null;
               try {
                  outStream = new FileOutputStream(String.format("/sdcard/%d.jpg", System.currentTimeMillis()));
                  
                  outStream.write(data);
                  outStream.close();
               }
               
               catch (FileNotFoundException e) {
                  e.printStackTrace();
               }
               
               catch (IOException e) {
                  e.printStackTrace();
               }
               
               finally {
               }
               
               Toast.makeText(getApplicationContext(), "Picture Saved", Toast.LENGTH_LONG).show();
               refreshCamera();
            }
         };
      }
      
      public void captureImage(View v) throws IOException {
         camera.takePicture(null, null, jpegCallback);
      }
      
      public void refreshCamera() {
         if (surfaceHolder.getSurface() == null) {
            return;
         }
         
         try {
            camera.stopPreview();
         }
         
         catch (Exception e) {
         }
         
         try {
            camera.setPreviewDisplay(surfaceHolder);
            camera.startPreview();
         }
         catch (Exception e) {
      }
   }
   
   @Override
   protected void onDestroy() {
      super.onDestroy();
   }
   
   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      // Inflate the menu; this adds items to the action bar if it is present.
      getMenuInflater().inflate(R.menu.menu_main, menu);
      return true;
   }
   
   @Override
   public boolean onOptionsItemSelected(MenuItem item) {
      // Handle action bar item clicks here. The action bar 
      // automatically handle clicks on the Home/Up button, so long
      // as you specify a parent activity in AndroidManifest.xml.
      
      int id = item.getItemId();
      
      //noinspection SimplifiableIfStatement
      if (id == R.id.action_settings) {
         return true;
      }
      return super.onOptionsItemSelected(item);
   }
   
   @Override
   public void surfaceCreated(SurfaceHolder holder) {
      try {
         camera = Camera.open();
      }
      
      catch (RuntimeException e) {
         System.err.println(e);
         return;
      }
      
      Camera.Parameters param;
      param = camera.getParameters();
      param.setPreviewSize(352, 288);
      camera.setParameters(param);
      
      try {
         camera.setPreviewDisplay(surfaceHolder);
         camera.startPreview();
      }
      
      catch (Exception e) {
         System.err.println(e);
         return;
      }
   }
   
   @Override
   public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
      refreshCamera();
   }
   
   @Override
   public void surfaceDestroyed(SurfaceHolder holder) {
      camera.stopPreview();
      camera.release();
      camera = null;
   }
}

<RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
   android:paddingRight="@dimen/activity_horizontal_margin"
   android:paddingTop="@dimen/activity_vertical_margin"
   android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
   
   <TextView android:text="Camera Example" android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:id="@+id/textview"
      android:textSize="35dp"
      android:layout_alignParentTop="true"
      android:layout_centerHorizontal="true" />
      
   <TextView
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="Tutorials point"
      android:id="@+id/textView"
      android:layout_below="@+id/textview"
      android:layout_centerHorizontal="true"
      android:textColor="#ff7aff24"
      android:textSize="35dp" />
      
   <SurfaceView
      android:id="@+id/surfaceView"
      android:layout_width="match_parent"
      android:layout_height="0dp"
      android:layout_weight="1"/>
      
</RelativeLayout>

<resources>
   <string name="app_name">My Application</string>
   <string name="hello_world">Hello world!</string>
   <string name="action_settings">Settings</string>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
   package="com.example.camera1"
   android:versionCode="1"
   android:versionName="1.0" >
   
   <uses-permission android:name="android.permission.CAMERA" />
   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
   <uses-feature android:name="android.hardware.camera" />
   <uses-feature android:name="android.hardware.camera.autofocus" />

   <application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/app_name"
      android:theme="@style/AppTheme" >
      
      <activity
         android:name="com.example.sairamkrishna.myapplication.MainActivity"
         android:label="@string/app_name" >
      
         <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
         </intent-filter>
         
      </activity>
      
   </application>
</manifest>