Android uses cameras for photography and photo Cropping

1. Activity source code:

Package com. example. crema;

Import java. io. ByteArrayOutputStream;
Import java. io. File;
Import java. text. SimpleDateFormat;
Import java. util. Date;

 

Import android.net. Uri;
Import android. OS. Bundle;
Import android. OS. Environment;
Import android. provider. MediaStore;
Import android. app. Activity;
Import android. content. Intent;
Import android. graphics. Bitmap;
Import android. util. Log;
Import android. view. Menu;
Import android. view. View;
Import android. view. View. OnClickListener;
Import android. widget. Button;
Import android. widget. ImageView;
Import android. widget. TextView;

Public class CramaActivity extends Activity {

Private Button creama = null;

Private ImageView img = null;

Private TextView text = null;

Private File tempFile = new File (Environment. getExternalStorageDirectory (),
GetPhotoFileName ());

Private static final int PHOTO_REQUEST_TAKEPHOTO = 1; // take a photo
Private static final int PHOTO_REQUEST_GALLERY = 2; // select from album
Private static final int PHOTO_REQUEST_CUT = 3; // result

@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
SetContentView (R. layout. activity_crama );
Init ();
Log. I ("TAG -->", "" + Environment. getExternalStorageDirectory ());
}

Private void init (){
// TODO Auto-generated method stub

Creama = (Button) findViewById (R. id. btn_creama );

Img = (ImageView) findViewById (R. id. img_creama );

Creama. setOnClickListener (listener );
Text = (TextView) findViewById (R. id. text );



}
Protected void onActivityResult (int requestCode, int resultCode, Intent data ){
Switch (requestCode ){
Case PHOTO_REQUEST_TAKEPHOTO: // call when you select to take a photo
StartPhotoZoom (Uri. fromFile (tempFile ));
Break;
Case PHOTO_REQUEST_GALLERY: // when you select to obtain an image from a local device
// Make a non-empty judgment. When we feel unsatisfied and want to re-crop it, no exception will be reported, the same below
If (data! = Null)
StartPhotoZoom (data. getData ());
Break;
Case PHOTO_REQUEST_CUT: // returned result
If (data! = Null)
// SetPicToView (data );
SentPicToNext (data );
Break;
}
Super. onActivityResult (requestCode, resultCode, data );
}
Private OnClickListener listener = new OnClickListener (){

@ Override
Public void onClick (View arg0 ){
// TODO Auto-generated method stub

Intent cameraintent = new Intent (MediaStore. ACTION_IMAGE_CAPTURE );
// Specify the storage path of the photo after the camera is called
Cameraintent. putExtra (MediaStore. EXTRA_OUTPUT,
Uri. fromFile (tempFile ));
StartActivityForResult (cameraintent, PHOTO_REQUEST_TAKEPHOTO );

}};

@ Override
Public boolean onCreateOptionsMenu (Menu menu ){
GetMenuInflater (). inflate (R. menu. activity_crama, menu );
Return true;
}



Private void startPhotoZoom (Uri uri ){
Intent intent = new Intent ("com. android. camera. action. CROP ");
Intent. setDataAndType (uri, "image /*");
// If crop is set to true, the displayed view can be cropped in the enabled intent.
Intent. putExtra ("crop", "true ");

// AspectX aspectY is the aspect ratio
Intent. putExtra ("aspectX", 1 );
Intent. putExtra ("aspectY", 1 );

// OutputX, outputY is the width and height of the cropped Image
Intent. putExtra ("outputX", 300 );
Intent. putExtra ("outputY", 300 );
Intent. putExtra ("return-data", true );
Intent. putExtra ("noFaceDetection", true );
StartActivityForResult (intent, PHOTO_REQUEST_CUT );
}

// Pass the cropped image to the next interface
Private void sentPicToNext (Intent picdata ){
Bundle bundle = picdata. getExtras ();
If (bundle! = Null ){
Bitmap photo = bundle. getParcelable ("data ");
If (photo = null ){
Img. setImageResource (R. drawable. get_user_photo );
} Else {
Img. setImageBitmap (photo );
// Set the text content to the absolute path and name of the image
Text. setText (tempFile. getAbsolutePath ());
}

ByteArrayOutputStream baos = null;
Try {
Baos = new ByteArrayOutputStream ();
Photo. compress (Bitmap. CompressFormat. JPEG, 100, baos );
Byte [] photodata = baos. toByteArray ();
System. out. println (photodata. toString ());
// Intent intent = new Intent ();
// Intent. setClass (RegisterActivity. this, ShowActivity. class );
// Intent. putExtra ("photo", photodata );
// StartActivity (intent );
// Finish ();
} Catch (Exception e ){
E. getStackTrace ();
} Finally {
If (baos! = Null ){
Try {
Baos. close ();
} Catch (Exception e ){
E. printStackTrace ();
}
}
}
}
}

// Use the current date of the system to adjust the photo name
Private String getPhotoFileName (){
Date date = new Date (System. currentTimeMillis ());
SimpleDateFormat dateFormat = new SimpleDateFormat (
"'Img '_ yyyyMMdd_HHmmss ");
Return dateFormat. format (date) + ". jpg ";
}
}

2. xml layout file code:

<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">

<Button
Android: id = "@ + id/btn_creama"
Android: layout_width = "wrap_content"
Android: layout_height = "wrap_content"
Android: layout_centerHorizontal = "true"

Android: text = "@ string/hello_world"
Tools: context = ". CramaActivity"/>

<ImageView
Android: id = "@ + id/img_creama"
Android: layout_width = "150dip"
Android: layout_height = "150dip"
Android: layout_margin = "15dip"
Android: layout_centerHorizontal = "true"
Android: layout_below = "@ + id/btn_creama"
Android: scaleType = "fitXY"
Android: background = "@ drawable/bg_img_coner"
/>
<TextView
Android: id = "@ + id/text"
Android: layout_width = "fill_parent"
Android: layout_height = "wrap_content"
Android: layout_below = "@ + id/img_creama"
Android: textSize = "16sp"
Android: background = "#22000000"

/>

</RelativeLayout>