Capture Image from Camera and Display in Activity

Capture Image from Camera and Display in Activity

Here's an example activity that will launch the camera app and then retrieve the image and display it.

package edu.gvsu.cis.masl.camerademo;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

public class MyCameraActivity extends Activity
{
    private static final int CAMERA_REQUEST = 1888; 
    private ImageView imageView;
    private static final int MY_CAMERA_PERMISSION_CODE = 100;

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        this.imageView = (ImageView)this.findViewById(R.id.imageView1);
        Button photoButton = (Button) this.findViewById(R.id.button1);
        photoButton.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                if (checkSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED)
                {
                    requestPermissions(new String[]{Manifest.permission.CAMERA}, MY_CAMERA_PERMISSION_CODE);
                }
                else
                {
                    Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
                    startActivityForResult(cameraIntent, CAMERA_REQUEST);
                } 
            }
        });
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
    {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == MY_CAMERA_PERMISSION_CODE)
        {
            if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
            {
                Toast.makeText(this, "camera permission granted", Toast.LENGTH_LONG).show();
                Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); 
                startActivityForResult(cameraIntent, CAMERA_REQUEST);
            }
            else
            {
                Toast.makeText(this, "camera permission denied", Toast.LENGTH_LONG).show();
            }
        }
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data)
    {  
        if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK)
        {  
            Bitmap photo = (Bitmap) data.getExtras().get("data"); 
            imageView.setImageBitmap(photo);
        }  
    } 
}

Note that the camera app itself gives you the ability to review/retake the image, and once an image is accepted, the activity displays it.

Here is the layout that the above activity uses. It is simply a LinearLayout containing a Button with id button1 and an ImageView with id imageview1:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/photo"></Button>
    <ImageView android:id="@+id/imageView1" android:layout_height="wrap_content" android:src="@drawable/icon" android:layout_width="wrap_content"></ImageView>

</LinearLayout>

And one final detail, be sure to add:

<uses-feature android:name="android.hardware.camera"></uses-feature> 

and if camera is optional to your app functionality. make sure to set require to false in the permission. like this

<uses-feature android:name="android.hardware.camera" android:required="false"></uses-feature>

to your manifest.xml.

Capturing Image from camera and displaying it in another activity in android

I finally found an awesome solution
This library is used to capture image from camera or select from gallery and return back image in File format in onActivityResult method, which can be used further in the application.
Use

EasyImage Library

Android. How to capture image from camera and save it to imageView?

just try like this:

This code for capture the image from camera and displayed in imageview.

public class MainActivity extends ActionBarActivity {
    ImageView imgFavorite;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        }
    public void imageClick(View view){
       imgFavorite =(ImageView)findViewById(R.id.imageView1);
        open();
    }
    public void open(){
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); //IMAGE CAPTURE CODE
        startActivityForResult(intent, 0);
    }
     protected void onActivityResult(int requestCode,int resultCode,Intent data){
     super.onActivityResult(requestCode,resultCode,data);
        Bitmap bitmap=(Bitmap)data.getExtras().get("data");
        imgFavorite.setImageBitmap(bitmap);
     }
}

xml file:

<ImageView
    android:id="@+id/imageView1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_marginLeft="14dp"
    android:layout_marginTop="16dp"
    android:contentDescription="@string/hello_world"
    android:onClick="imageClick"
    android:src="@drawable/camera_launcher" />

Capture Image from Camera and Display in Same Activity. -Xamarin

Lots of tutorials are displaying the imageview and textview but do not display the images on the same activity. How do i achieve this?

You can put the Preview in the layout of your activity, and compress and show the image after taking picture(Steps below):

1. Create a Preview class for Camera Preview:

   public class Preview : SurfaceView, ISurfaceHolderCallback
   {
       private Android.Hardware.Camera mCamera;
   
       public Preview(Context context, Android.Hardware.Camera camera):base(context)
       {
           mCamera = camera;
           Holder.AddCallback(this);
           // deprecated setting, but required on Android versions prior to 3.0
           Holder.SetType(SurfaceType.PushBuffers);
       }
       public void SurfaceChanged(ISurfaceHolder holder, [GeneratedEnum] Format format, int width, int height)
       {
           // If your preview can change or rotate, take care of those events here.
           // Make sure to stop the preview before resizing or reformatting it.
   
           if (Holder.Surface == null)
           {
               // preview surface does not exist
               return;
           }
   
           // stop preview before making changes
           try
           {
               mCamera.StopPreview();
           }
           catch (Exception e)
           {
               // ignore: tried to stop a non-existent preview
           }
   
           // set preview size and make any resize, rotate or
           // reformatting changes here
   
           // start preview with new settings
           try
           {
               mCamera.SetPreviewDisplay(Holder);
               mCamera.StartPreview();
   
           }
           catch (Exception e)
           {
               //Deal with exception
           }
       }
   
       public void SurfaceCreated(ISurfaceHolder holder)
       {
          // The Surface has been created, now tell the camera where to draw the preview.
           try
           {
               mCamera.SetPreviewDisplay(Holder);
               mCamera.StartPreview();
           }
           catch (IOException e)
           {
               e.PrintStackTrace();
           }
       }
   
       public void SurfaceDestroyed(ISurfaceHolder holder)
       {
           // empty. Take care of releasing the Camera preview in your activity.
       }
   
   }
   

2. Prepare the Layout to hold the Camera Preview and your Image:

   <?xml version="1.0" encoding="utf-8"?>
   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
       android:orientation="vertical"
       android:layout_width="match_parent"
       android:layout_height="match_parent" >
     <LinearLayout
       android:layout_width="match_parent"
       android:layout_height="250dp">
       <FrameLayout
       android:id="@+id/camera_preview"
       android:layout_width="fill_parent"
       android:layout_height="fill_parent"
       android:layout_weight="1"
       />
     </LinearLayout>
     <ImageView
       android:id="@+id/imgResult"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
     />
     <Button
       android:id="@+id/btnClick"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:text="Click Me"/>
   </LinearLayout>
   

3. Create Camera and Preview in Activity and register for taking picture's callback:

   public class MainActivity : Activity,IPictureCallback
   {
       bool isCameraOpened;
       Preview mPreview;
       Android.Hardware.Camera mCamera;
       Button btnClick;
       FrameLayout camera_preview;
       protected override void OnCreate(Bundle bundle)
       {
           base.OnCreate(bundle);
   
           // Set our view from the "main" layout resource
           SetContentView (Resource.Layout.Main);
           btnClick = FindViewById<Button>(Resource.Id.btnClick);
           camera_preview = FindViewById<FrameLayout>(Resource.Id.camera_preview);
           mCamera = GetCameraInstance();
           mCamera.SetDisplayOrientation(90);
           mPreview = new Preview(this, mCamera);
           camera_preview.AddView(mPreview);
           btnClick.Click += BtnClick_Click;
       }
   
       private bool CheckCameraHardware()
       {
           if (this.PackageManager.HasSystemFeature(Android.Content.PM.PackageManager.FeatureCamera))
           {
               return true;
           } else
           {
               return false;
           }
   
       }
   
   private void BtnClick_Click(object sender, System.EventArgs e)
   {
       mCamera.TakePicture(null, null, this);
   }
   
       private Android.Hardware.Camera GetCameraInstance()
       {
           Android.Hardware.Camera c=null;
           try
           {
               c = Android.Hardware.Camera.Open();
           }
           catch (Java.Lang.Exception e)
           {
   
           }
   
           return c;
       }
   
       public void OnPictureTaken(byte[] data, Android.Hardware.Camera camera)
       {
           Bitmap bitmap=BitmapFactory.DecodeByteArray(data, 0, data.Length);
           Bitmap resizedBitmap=Bitmap.CreateScaledBitmap(bitmap, 100, 100, true);
           FindViewById<ImageView>(Resource.Id.imgResult).SetImageBitmap(resizedBitmap);
           //restart the preview
           if (mCamera != null)
           {
               mCamera.StartPreview();
           }
   
       }
   }
   

For detailed use of Camera API, you can refer to Camera API.

Notes: Don't forget to add <uses-permission android:name="android.permission.CAMERA" /> and
<uses-feature android:name="android.hardware.camera" /> to AndroidManifest.xml.

Display image in another activity after capture in android?

when the camera activity finishes, you collect the data in the onActivityResult() method.
Then you can take the file your camera created and use it in another intent and then fire off fire off another activity. That activity then reads the intent data and can manipulate the photo.

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    String filePath;
    Bitmap _bitmapPreScale = null;
  if (requestCode == REQUEST_FROM_CAMERA && resultCode == RESULT_OK) {

    _bitmapPreScale = getPhoto(filePath);

  Intent intent = new Intent(someCLass.class)
  intent.putExtra(Intent.EXTRA_STREAM, Uri.parse ("file://" + filePath));
  startActivity(intent);
 }

}

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