| Package com. amani. main; Import java. io. ByteArrayOutputStream;
Import java. io. InputStream;
Import android. app. Activity;
Import android. app. AlertDialog;
Import android. content. ContentResolver;
Import android. content. DialogInterface;
Import android. content. Intent;
Import android. graphics. Bitmap;
Import android. graphics. BitmapFactory;
Import android.net. Uri;
Import android. OS. Bundle;
Import android. view. View;
Import android. view. View. OnClickListener;
Import android. widget. ImageView; Public class chooser extends Activity { Private ImageView imageView;
Private OnClickListener imgViewListener;
Bitmap myBitmap;
Private byte [] mContent;
@ Override
Public void onCreate (Bundle savedInstanceState ){
Super. onCreate (savedInstanceState );
SetContentView (R. layout. main );
ImageView = (ImageView) findViewById (R. id. ivPic );
ImgViewListener = new OnClickListener (){
Public void onClick (View v ){
Final CharSequence [] items = {"album", "photo "};
AlertDialog dlg = new AlertDialog. Builder (chooser. this). setTitle ("select image"). setItems (items,
New DialogInterface. OnClickListener (){
Public void onClick (DialogInterface dialog, int item ){
// Here, item is based on the selected method. Two methods are defined in the items array. The subscript of the image is 1, so the photo method is called.
If (item = 1 ){
Intent getImageByCamera = new Intent ("android. media. action. IMAGE_CAPTURE ");
StartActivityForResult (getImageByCamera, 1 );
} Else {
Intent getImage = new Intent (Intent. ACTION_GET_CONTENT );
GetImage. addCategory (Intent. CATEGORY_OPENABLE );
GetImage. setType ("image/jpeg ");
StartActivityForResult (getImage, 0 );
}
}
}). Create ();
Dlg. show ();
}
};
// Bind the click listener to the imageView Control
ImageView. setOnClickListener (imgViewListener );
}
@ Override
Protected void onActivityResult (int requestCode, int resultCode, Intent data ){
ContentResolver resolver = getContentResolver ();
/**
* Because the startActivityForResult method is used in both methods, the onActivityResult method is executed after the method is executed,
* In order to determine whether to choose the method to obtain the image, the requestCode here corresponds to the second parameter in startActivityForResult.
*/
If (requestCode = 0 ){
Try {
// Obtain the image uri
Uri originalUri = data. getData ();
// Parse the image content into a byte array
MContent = readStream (resolver. openInputStream (Uri. parse (originalUri. toString ())));
// Convert the byte array to a Bitmap object that can be called by ImageView.
MyBitmap = getPicFromBytes (mContent, null );
//// Bind the obtained image to the control for display
ImageView. setImageBitmap (myBitmap );
} Catch (Exception e ){
System. out. println (e. getMessage ());
} } Else if (requestCode = 1 ){
Try {
Super. onActivityResult (requestCode, resultCode, data );
Bundle extras = data. getExtras ();
MyBitmap = (Bitmap) extras. get ("data ");
ByteArrayOutputStream baos = new ByteArrayOutputStream ();
MyBitmap. compress (Bitmap. CompressFormat. JPEG, 100, baos );
MContent = baos. toByteArray ();
} Catch (Exception e ){
// TODO Auto-generated catch block
E. printStackTrace ();
}
// Bind the obtained image to the control for display
ImageView. setImageBitmap (myBitmap );
} } Public static Bitmap getPicFromBytes (byte [] bytes, BitmapFactory. Options opts ){
If (bytes! = Null)
If (opts! = Null)
Return BitmapFactory. decodeByteArray (bytes, 0, bytes. length, opts );
Else
Return BitmapFactory. decodeByteArray (bytes, 0, bytes. length );
Return null;
}
Public static byte [] readStream (InputStream inStream) throws Exception {
Byte [] buffer = new byte [1024];
Int len =-1;
ByteArrayOutputStream outStream = new ByteArrayOutputStream ();
While (len = inStream. read (buffer ))! =-1 ){
OutStream. write (buffer, 0, len );
}
Byte [] data = outStream. toByteArray ();
OutStream. close ();
InStream. close ();
Return data; }
} |
