Capture Image from Camera and Display in Activity

Question

I want to write a module where on a click of a button the camera opens and I can click and capture an image. If I don't like the image I can delete it and click one more image and then select the image and it should return back and display that image in the activity.

Answer 1

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.