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skylee91/ImagePicker.java

Forked from Mariovc/ ImagePicker.java
Created September 25, 2015 05:54
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Revisions

  1. @Mariovc Mariovc revised this gist Sep 9, 2015. 1 changed file with 3 additions and 1 deletion.
    4 changes: 3 additions & 1 deletion ImagePicker.java
    View file
    Original file line number Diff line number Diff line change
    @@ -63,7 +63,9 @@ public static Bitmap getImageFromResult(Context context, int resultCode,
    Log.d(TAG, "selectedImage: " + selectedImage);

    bm = getImageResized(context, selectedImage);
    bm = rotateIfNeeded(context, bm, imageFile);
    if (isCamera) {
    bm = rotateIfNeeded(context, bm, imageFile);
    }
    }
    return bm;
    }
  2. @Mariovc Mariovc renamed this gist Sep 8, 2015. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion ExampleActivity.java → SimpleActivity.java
    View file
    Original file line number Diff line number Diff line change
    @@ -1,4 +1,4 @@
    public class ExampleActivity {
    public class SimpleActivity {
    private static final int PICK_IMAGE_ID = 234; // the number doesn't matter

    public void onPickImage(View view) {
  3. @Mariovc Mariovc revised this gist Sep 8, 2015. 1 changed file with 2 additions and 2 deletions.
    4 changes: 2 additions & 2 deletions ExampleActivity.java
    View file
    Original file line number Diff line number Diff line change
    @@ -1,5 +1,5 @@
    public class RegisterActivity {
    private static final int PICK_IMAGE_ID = 234;
    public class ExampleActivity {
    private static final int PICK_IMAGE_ID = 234; // the number doesn't matter

    public void onPickImage(View view) {
    Intent chooseImageIntent = ImagePicker.getPickImageIntent(this);
  4. @Mariovc Mariovc revised this gist Sep 8, 2015. 1 changed file with 21 additions and 0 deletions.
    21 changes: 21 additions & 0 deletions ExampleActivity.java
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,21 @@
    public class RegisterActivity {
    private static final int PICK_IMAGE_ID = 234;

    public void onPickImage(View view) {
    Intent chooseImageIntent = ImagePicker.getPickImageIntent(this);
    startActivityForResult(chooseImageIntent, PICK_IMAGE_ID);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch(requestCode) {
    case PICK_IMAGE_ID:
    Bitmap bitmap = ImagePicker.getImageFromResult(this, resultCode, data);
    // TODO use bitmap
    break;
    default:
    super.onActivityResult(requestCode, resultCode, data);
    break;
    }
    }
    }
  5. @Mariovc Mariovc created this gist Sep 8, 2015.
    181 changes: 181 additions & 0 deletions ImagePicker.java
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,181 @@

    /**
    * Author: Mario Velasco Casquero
    * Date: 08/09/2015
    * Email: [email protected]
    */
    public class ImagePicker {

    private static final int DEFAULT_MIN_WIDTH_QUALITY = 400; // min pixels
    private static final String TAG = "ImagePicker";
    private static final String TEMP_IMAGE_NAME = "tempImage";

    public static int minWidthQuality = DEFAULT_MIN_WIDTH_QUALITY;


    public static Intent getPickImageIntent(Context context) {
    Intent chooserIntent = null;

    List<Intent> intentList = new ArrayList<>();

    Intent pickIntent = new Intent(Intent.ACTION_PICK,
    android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
    Intent takePhotoIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    takePhotoIntent.putExtra("return-data", true);
    takePhotoIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(getTempFile(context)));
    intentList = addIntentsToList(context, intentList, pickIntent);
    intentList = addIntentsToList(context, intentList, takePhotoIntent);

    if (intentList.size() > 0) {
    chooserIntent = Intent.createChooser(intentList.remove(intentList.size() -1),
    context.getString(R.string.pick_image_intent_text));
    chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentList.toArray(new Parcelable[]{}));
    }

    return chooserIntent;
    }

    private static List<Intent> addIntentsToList(Context context, List<Intent> list, Intent intent) {
    List<ResolveInfo> resInfo = context.getPackageManager().queryIntentActivities(intent, 0);
    for (ResolveInfo resolveInfo : resInfo) {
    String packageName = resolveInfo.activityInfo.packageName;
    Intent targetedIntent = new Intent(intent);
    targetedIntent.setPackage(packageName);
    list.add(targetedIntent);
    Log.d(TAG, "Intent: " + intent.getAction() + " package: " + packageName);
    }
    return list;
    }


    public static Bitmap getImageFromResult(Context context, int resultCode,
    Intent imageReturnedIntent) {
    Log.d(TAG, "getImageFromResult, resultCode: " + resultCode);
    Bitmap bm = null;
    File imageFile = getTempFile(context);
    if (resultCode == Activity.RESULT_OK) {
    Uri selectedImage;
    if (imageReturnedIntent == null) { /** CAMERA **/
    selectedImage = Uri.fromFile(imageFile);
    } else { /** ALBUM **/
    selectedImage = imageReturnedIntent.getData();
    }
    Log.d(TAG, "selectedImage: " + selectedImage);

    bm = getImageResized(context, selectedImage);
    bm = rotateIfNeeded(context, bm, imageFile);
    }
    return bm;
    }


    private static File getTempFile(Context context) {
    File imageFile = new File(context.getExternalCacheDir(), TEMP_IMAGE_NAME);
    imageFile.getParentFile().mkdirs();
    return imageFile;
    }

    private static Bitmap decodeBitmap(Context context, Uri theUri, int sampleSize) {
    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inSampleSize = sampleSize;

    AssetFileDescriptor fileDescriptor = null;
    try {
    fileDescriptor = context.getContentResolver().openAssetFileDescriptor(theUri, "r");
    } catch (FileNotFoundException e) {
    e.printStackTrace();
    }

    Bitmap actuallyUsableBitmap = BitmapFactory.decodeFileDescriptor(
    fileDescriptor.getFileDescriptor(), null, options);

    Log.d(TAG, options.inSampleSize + " sample method bitmap ... " +
    actuallyUsableBitmap.getWidth() + " " + actuallyUsableBitmap.getHeight());

    return actuallyUsableBitmap;
    }

    private static Bitmap getImageResized(Context context, Uri selectedImage) {
    Bitmap bm = null;
    int sampleSize = 7; // TODO improve resizer
    do {
    sampleSize -= 2;
    bm = decodeBitmap(context, selectedImage, sampleSize);
    Log.d(TAG, "resizer: new bitmap width = " + bm.getWidth());
    } while (bm.getWidth() < minWidthQuality && sampleSize > 1);
    return bm;
    }

    private static Bitmap rotateIfNeeded(Context context, Bitmap bm, File imageFile) {
    int rot = getCameraPhotoOrientation(context, imageFile);
    if (rot != 0) {
    bm = new RotateOrientation().RotateOrientationCall(bm, rot);
    }
    // saveBitmap(imageFile, bm);
    return bm;
    }

    // private static void saveBitmap(File imageFile, Bitmap bm) {
    // Log.d(TAG, "Saving image ... ");
    // imageFile.getParentFile().mkdirs();
    // FileOutputStream out = null;
    // try {
    // out = new FileOutputStream(imageFile);
    // bm.compress(Bitmap.CompressFormat.PNG, 90, out);
    // } catch (Exception e) {
    // e.printStackTrace();
    // } finally {
    // try {
    // if (out != null) {
    // out.close();
    // }
    // } catch (IOException e) {
    // e.printStackTrace();
    // }
    // }
    // Log.d(TAG, "Image saved");
    // }



    private static int getCameraPhotoOrientation(Context context, File imageFile) {
    int rotate = 0;
    try {

    context.getContentResolver().notifyChange(Uri.fromFile(imageFile), null);
    ExifInterface exif = new ExifInterface(imageFile.getAbsolutePath());
    int orientation = exif.getAttributeInt(
    ExifInterface.TAG_ORIENTATION,
    ExifInterface.ORIENTATION_NORMAL);

    switch (orientation) {
    case ExifInterface.ORIENTATION_ROTATE_270:
    rotate = 270;
    break;
    case ExifInterface.ORIENTATION_ROTATE_180:
    rotate = 180;
    break;
    case ExifInterface.ORIENTATION_ROTATE_90:
    rotate = 90;
    break;
    }


    Log.d(TAG, "Exit orientation: " + orientation);
    } catch (Exception e) {
    e.printStackTrace();
    }
    return rotate;
    }

    private static class RotateOrientation {

    Bitmap RotateOrientationCall(Bitmap src, float degree) {
    Matrix matrix = new Matrix();
    matrix.postRotate(degree);
    Bitmap bmOut = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
    return bmOut;

    }
    }
    }