Databases
StackOverflow2013
Postsdbo
PO
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    text
    copied!<p>Here's an example activity that will launch the camera app and then retrieve the image and display it.</p> <pre><code>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(); } } protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == CAMERA_REQUEST &amp;&amp; resultCode == Activity.RESULT_OK) { Bitmap photo = (Bitmap) data.getExtras().get("data"); imageView.setImageBitmap(photo); } } } </code></pre> <p>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.</p> <p>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: </p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" &gt; &lt;Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/photo"&gt;&lt;/Button&gt; &lt;ImageView android:id="@+id/imageView1" android:layout_height="wrap_content" android:src="@drawable/icon" android:layout_width="wrap_content"&gt;&lt;/ImageView&gt; &lt;/LinearLayout&gt; </code></pre> <p>And one final detail, be sure to add:</p> <pre><code>&lt;uses-feature android:name="android.hardware.camera"&gt;&lt;/uses-feature&gt; </code></pre> <p>and if camera is optional to your app functionality. make sure to set require to false in the permission. like this</p> <pre><code>&lt;uses-feature android:name="android.hardware.camera" android:required="false"&gt;&lt;/uses-feature&gt; </code></pre> <p>to your manifest.xml.</p>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload