Java tutorial
/* * This is the source code of Telegram for Android v. 1.3.2. * It is licensed under GNU GPL v. 2 or later. * You should have received a copy of the license in this archive (see LICENSE). * * Copyright Nikolai Kudashov, 2013. */ package org.telegram.ui.Views; import android.app.Activity; import android.content.Intent; import android.database.Cursor; import android.graphics.Bitmap; import android.net.Uri; import android.provider.MediaStore; import android.support.v4.app.Fragment; import org.telegram.TL.TLRPC; import org.telegram.messenger.FileLoader; import org.telegram.messenger.FileLog; import org.telegram.messenger.NotificationCenter; import org.telegram.messenger.UserConfig; import org.telegram.messenger.Utilities; import java.io.File; public class AvatarUpdater implements NotificationCenter.NotificationCenterDelegate { public String currentPicturePath; private TLRPC.PhotoSize smallPhoto; private TLRPC.PhotoSize bigPhoto; public String uploadingAvatar = null; File picturePath = null; public Activity parentActivity = null; public Fragment parentFragment = null; public AvatarUpdaterDelegate delegate; private boolean clearAfterUpdate = false; public boolean returnOnly = false; public static abstract interface AvatarUpdaterDelegate { public abstract void didUploadedPhoto(TLRPC.InputFile file, TLRPC.PhotoSize small, TLRPC.PhotoSize big); } public void clear() { if (uploadingAvatar != null) { clearAfterUpdate = true; } else { parentFragment = null; parentActivity = null; delegate = null; } } public void openCamera() { try { Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); File image = Utilities.generatePicturePath(); if (image != null) { takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(image)); currentPicturePath = image.getAbsolutePath(); } if (parentFragment != null) { parentFragment.startActivityForResult(takePictureIntent, 0); } else if (parentActivity != null) { parentActivity.startActivityForResult(takePictureIntent, 0); } } catch (Exception e) { FileLog.e("tmessages", e); } } public void openGallery() { try { Intent photoPickerIntent = new Intent(Intent.ACTION_PICK); photoPickerIntent.setType("image/*"); if (parentFragment != null) { parentFragment.startActivityForResult(photoPickerIntent, 1); } else if (parentActivity != null) { parentActivity.startActivityForResult(photoPickerIntent, 1); } } catch (Exception e) { FileLog.e("tmessages", e); } } private void startCrop(String path) { try { Intent cropIntent = new Intent("com.android.camera.action.CROP"); cropIntent.setDataAndType(Uri.fromFile(new File(path)), "image/*"); cropIntent.putExtra("crop", "true"); cropIntent.putExtra("aspectX", 1); cropIntent.putExtra("aspectY", 1); cropIntent.putExtra("outputX", 800); cropIntent.putExtra("outputY", 800); cropIntent.putExtra("scale", true); cropIntent.putExtra("return-data", false); picturePath = Utilities.generatePicturePath(); cropIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(picturePath)); cropIntent.putExtra("output", Uri.fromFile(picturePath)); if (parentFragment != null) { parentFragment.startActivityForResult(cropIntent, 2); } else if (parentActivity != null) { parentActivity.startActivityForResult(cropIntent, 2); } } catch (Exception e) { FileLog.e("tmessages", e); Bitmap bitmap = FileLoader.loadBitmap(path, 800, 800); processBitmap(bitmap); } } public void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == Activity.RESULT_OK) { if (requestCode == 0) { Utilities.addMediaToGallery(currentPicturePath); startCrop(currentPicturePath); currentPicturePath = null; } else if (requestCode == 1) { if (data == null) { return; } Uri imageUri = data.getData(); Cursor cursor = null; try { if (parentFragment != null) { cursor = parentFragment.getActivity().getContentResolver().query(imageUri, new String[] { android.provider.MediaStore.Images.ImageColumns.DATA }, null, null, null); } else if (parentActivity != null) { cursor = parentActivity.getContentResolver().query(imageUri, new String[] { android.provider.MediaStore.Images.ImageColumns.DATA }, null, null, null); } } catch (Exception e) { FileLog.e("tmessages", e); return; } if (cursor == null) { return; } if (cursor.moveToFirst()) { String imageFilePath = cursor.getString(0); startCrop(imageFilePath); } cursor.close(); } else if (requestCode == 2) { Bitmap bitmap = FileLoader.loadBitmap(picturePath.getAbsolutePath(), 800, 800); processBitmap(bitmap); } } } private void processBitmap(Bitmap bitmap) { if (bitmap == null) { return; } smallPhoto = FileLoader.scaleAndSaveImage(bitmap, 100, 100, 87, false); bigPhoto = FileLoader.scaleAndSaveImage(bitmap, 800, 800, 87, false); if (bigPhoto != null && smallPhoto != null) { if (returnOnly) { if (delegate != null) { delegate.didUploadedPhoto(null, smallPhoto, bigPhoto); } } else { UserConfig.saveConfig(false); uploadingAvatar = Utilities.getCacheDir() + "/" + bigPhoto.location.volume_id + "_" + bigPhoto.location.local_id + ".jpg"; NotificationCenter.Instance.addObserver(AvatarUpdater.this, FileLoader.FileDidUpload); NotificationCenter.Instance.addObserver(AvatarUpdater.this, FileLoader.FileDidFailUpload); FileLoader.Instance.uploadFile(uploadingAvatar, null, null); } } } @Override public void didReceivedNotification(int id, final Object... args) { if (id == FileLoader.FileDidUpload) { String location = (String) args[0]; if (uploadingAvatar != null && location.equals(uploadingAvatar)) { Utilities.RunOnUIThread(new Runnable() { @Override public void run() { NotificationCenter.Instance.removeObserver(AvatarUpdater.this, FileLoader.FileDidUpload); NotificationCenter.Instance.removeObserver(AvatarUpdater.this, FileLoader.FileDidFailUpload); if (delegate != null) { delegate.didUploadedPhoto((TLRPC.InputFile) args[1], smallPhoto, bigPhoto); } uploadingAvatar = null; if (clearAfterUpdate) { parentFragment = null; parentActivity = null; delegate = null; } } }); } } else if (id == FileLoader.FileDidFailUpload) { String location = (String) args[0]; if (uploadingAvatar != null && location.equals(uploadingAvatar)) { Utilities.RunOnUIThread(new Runnable() { @Override public void run() { NotificationCenter.Instance.removeObserver(AvatarUpdater.this, FileLoader.FileDidUpload); NotificationCenter.Instance.removeObserver(AvatarUpdater.this, FileLoader.FileDidFailUpload); uploadingAvatar = null; //delegate.didUploadedPhoto(null, null, null); if (clearAfterUpdate) { parentFragment = null; parentActivity = null; delegate = null; } } }); } } } }