I have an android app that gets pictures from the gallery and from the camera. I have the code as well to convert those multiple pictures that I choose to one GIF file but I don't know where exactly to include in my code or how and if there's anything that I need to include in my xml file. Kindly help me out with this as I'm new to android programming and it's a school project.
The code of the app:
public class MainActivity extends AppCompatActivity {
private boolean zoomOut = false;
int REQUEST_CAMERA = 0, SELECT_FILE = 1;
Button btnSelect;
LinearLayout root ;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.content_main);
btnSelect = (Button) findViewById(R.id.btnSelectPhoto);
root = (LinearLayout) findViewById(R.id.ll);
btnSelect.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
selectImage();
}
});
ImageView ivImage = (ImageView) findViewById(R.id.ivImage);
}
private void selectImage() {
final CharSequence[] items = { "Take Photo", "Choose from Library",
"Cancel" };
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("Add Photo!");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
if (items[item].equals("Take Photo")) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, REQUEST_CAMERA);
} else if (items[item].equals("Choose from Library")) {
Intent intent = new Intent(
Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
intent.setType("image/* video/*");
startActivityForResult(
Intent.createChooser(intent, "Select File"),
SELECT_FILE);
} else if (items[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
if (requestCode == SELECT_FILE)
onSelectFromGalleryResult(data);
else if (requestCode == REQUEST_CAMERA)
onCaptureImageResult(data);
}
}
private void onCaptureImageResult(Intent data) {
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
Bitmap resized = Bitmap.createScaledBitmap(thumbnail, 800, 150, true);
File destination = new File(Environment.getExternalStorageDirectory(),
System.currentTimeMillis() + ".jpg");
FileOutputStream fo;
try {
destination.createNewFile();
fo = new FileOutputStream(destination);
fo.write(bytes.toByteArray());
fo.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
ImageView ivImage = new ImageView(this);
GradientDrawable gd = new GradientDrawable();
gd.setColor(0xFF00FF00);
gd.setCornerRadius(5);
gd.setStroke(1, 0xFF000000);
ivImage.setBackground(gd);
Point point = null;
getWindowManager().getDefaultDisplay().getSize(point);
int width = point.x;
int height = point.y;
ivImage.setMinimumWidth(width);
ivImage.setMinimumHeight(height);
ivImage.setMaxWidth(width);
ivImage.setMaxHeight(height);
ivImage.getLayoutParams().width = 20;
ivImage.getLayoutParams().height = 20;
ivImage.setLayoutParams(new ActionBar.LayoutParams(
GridLayout.LayoutParams.MATCH_PARENT,
GridLayout.LayoutParams.WRAP_CONTENT));
ivImage.setImageBitmap(thumbnail);
root.addView(ivImage);
setContentView(root);
ivImage.setImageBitmap(thumbnail);
}
@SuppressWarnings("deprecation")
private void onSelectFromGalleryResult(Intent data) {
Uri selectedImageUri = data.getData();
String[] projection = { MediaStore.MediaColumns.DATA };
Cursor cursor = managedQuery(selectedImageUri, projection, null, null,
null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA);
cursor.moveToFirst();
String selectedImagePath = cursor.getString(column_index);
Bitmap bm;
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(selectedImagePath, options);
final int REQUIRED_SIZE = 200;
int scale = 1;
while (options.outWidth / scale / 2 >= REQUIRED_SIZE
&& options.outHeight / scale / 2 >= REQUIRED_SIZE)
scale *= 2;
options.inSampleSize = scale;
options.inJustDecodeBounds = false;
bm = BitmapFactory.decodeFile(selectedImagePath, options);
final ImageView ivImage = new ImageView(this);
ivImage .setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(zoomOut) {
Toast.makeText(getApplicationContext(), "NORMAL SIZE!", Toast.LENGTH_LONG).show();
ivImage.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
ivImage.setAdjustViewBounds(true);
zoomOut =false;
}else{
Toast.makeText(getApplicationContext(), "FULLSCREEN!", Toast.LENGTH_LONG).show();
ivImage.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
ivImage.setScaleType(ImageView.ScaleType.FIT_XY);
zoomOut = true;
}
}
});
Display display = getWindowManager().getDefaultDisplay();
int width = display.getWidth();
int height = display.getHeight();
ivImage.setMinimumWidth(width);
ivImage.setMinimumHeight(height);
ivImage.setMaxWidth(width);
ivImage.setMaxHeight(height);
ivImage.setLayoutParams(new ActionBar.LayoutParams(
1000,
1000));
ivImage.setImageBitmap(bm);
root.addView(ivImage);
setContentView(root);
ivImage.setImageBitmap(bm);
}
}
And the code of converting the pictures to GIF:
public byte[] generateGIF() {
ArrayList<Bitmap> bitmaps = adapter.getBitmapArray();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
AnimatedGifEncoder encoder = new AnimatedGifEncoder();
encoder.start(bos);
for (Bitmap bitmap : bitmaps) {
encoder.addFrame(bitmap);
}
encoder.finish();
return bos.toByteArray();
}
As well as for the output:
FileOutputStream outStream = null;
try{
outStream = new FileOutputStream("/sdcard/generate_gif/test.gif");
outStream.write(generateGIF());
outStream.close();
}catch(Exception e){
e.printStackTrace();
}
You can refer to the answer here in that link: http://stackoverflow.com/questions/16331437/how-to-create-an-animated-gif-from-jpegs-in-android-development?lq=1
I don't get the answer to be honest.
What I have tried:
I didn't try anything yet I don't know how to do it