Capture Images and Crop Images using Intent (Android)

Camera lauch on button click(Capture/Crop App)

Crop Captured image(Capture/Crop App)

Show Croped image(Capture/Crop App)

Create new Android Project
Project Name: Take picture from Camera
//tested from 2.3.3 to current android sdk 
Build Target: Android 2.3.3   //or greater than that
Application Name: Take_Pic_Camera
Package Name: com.shaikhhamadali.blogspot.take_pic_camera
Create layout file: activity_launch_camera 

  1. create layout: 

<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"
    tools:context=".LaunchCamera"
    android:background="#000000" >

    <ImageView
        android:id="@+id/imVCature_pic"
        android:layout_width="match_parent"
        android:layout_height="350dp"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:contentDescription="catured picture"
        android:src="@drawable/ic_launcher" />

    <Button
        android:id="@+id/btnCapture"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="400dp"
        android:text="Take Picture" />

</RelativeLayout>

2.code of activity:

package com.shaikhhamadali.blogspot.take_pic_camera;

import java.io.File;

import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

public class LaunchCamera extends Activity {
 ImageView imVCature_pic;
 Button btnCapture;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_launch_camera);
  initializeControls();
 }

 private void initializeControls() {
  imVCature_pic=(ImageView)findViewById(R.id.imVCature_pic);
  btnCapture=(Button)findViewById(R.id.btnCapture);
  btnCapture.setOnClickListener(new OnClickListener() {

   @Override
   public void onClick(View v) {
    /* create an instance of intent
     * pass action android.media.action.IMAGE_CAPTURE 
     * as argument to launch camera
     */
    Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
    /*create instance of File with name img.jpg*/
    File file = new File(Environment.getExternalStorageDirectory()+File.separator + "img.jpg");
    /*put uri as extra in intent object*/
    intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
    /*start activity for result pass intent as argument and request code */
    startActivityForResult(intent, 1);
   }
  });

 }

 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  super.onActivityResult(requestCode, resultCode, data);
  //if request code is same we pass as argument in startActivityForResult
  if(requestCode==1){
   //create instance of File with same name we created before to get image from storage
   File file = new File(Environment.getExternalStorageDirectory()+File.separator + "img.jpg");
   //Crop the captured image using an other intent
   try {
    /*the user's device may not support cropping*/
    cropCapturedImage(Uri.fromFile(file));
   }
   catch(ActivityNotFoundException aNFE){
    //display an error message if user device doesn't support
    String errorMessage = "Sorry - your device doesn't support the crop action!";
    Toast toast = Toast.makeText(this, errorMessage, Toast.LENGTH_SHORT);
    toast.show();
   }
  }
  if(requestCode==2){
   //Create an instance of bundle and get the returned data
   Bundle extras = data.getExtras();
   //get the cropped bitmap from extras
   Bitmap thePic = extras.getParcelable("data");
   //set image bitmap to image view
   imVCature_pic.setImageBitmap(thePic);
  }
 }
 //create helping method cropCapturedImage(Uri picUri)
 public void cropCapturedImage(Uri picUri){
  //call the standard crop action intent 
  Intent cropIntent = new Intent("com.android.camera.action.CROP");
  //indicate image type and Uri of image
  cropIntent.setDataAndType(picUri, "image/*");
  //set crop properties
  cropIntent.putExtra("crop", "true");
  //indicate aspect of desired crop
  cropIntent.putExtra("aspectX", 1);
  cropIntent.putExtra("aspectY", 1);
  //indicate output X and Y
  cropIntent.putExtra("outputX", 256);
  cropIntent.putExtra("outputY", 256);
  //retrieve data on return
  cropIntent.putExtra("return-data", true);
  //start the activity - we handle returning in onActivityResult
  startActivityForResult(cropIntent, 2);
 }
}

3. note that:

• you can use this on button onclick,on action_down,on the fly etc.
• you can capture image by multiple ways one of them i have described above.
• you can crop image by multiple ways too but this one is using intent.
• about Camera.

4. conclusion:

• Some information about how to launch camera using intent and crop image using intent too.
• Know how to decode image from storage to bitmap from my previous post.
• know what is Bitmap factory options and how to use them from my previous post.

5. about the post:

• The code seems to explain itself due to comments, but if you have any questions you can freely ask too!
•  Don’t mind to write a comment whatever you like to ask, to know,to suggest or recommend.
•  Hope you enjoy it!

6. Source Code:

        you can download the source code here

Cheers,

Hamad Ali Shaikh