Java tutorial
/* * This is the source code of Telegram for Android v. 3.x.x. * 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, 2013-2016. */ package net.bluehack.ui; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.Bitmap; import android.graphics.Point; import android.graphics.PorterDuff; import android.graphics.PorterDuffColorFilter; import android.graphics.drawable.Drawable; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.provider.MediaStore; import android.support.v4.content.FileProvider; import android.view.Gravity; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.ProgressBar; import net.bluehack.messenger.AndroidUtilities; import net.bluehack.messenger.BuildConfig; import net.bluehack.messenger.ImageLoader; import net.bluehack.messenger.LocaleController; import net.bluehack.messenger.support.widget.LinearLayoutManager; import net.bluehack.messenger.support.widget.RecyclerView; import net.bluehack.messenger.ApplicationLoader; import net.bluehack.tgnet.ConnectionsManager; import net.bluehack.tgnet.RequestDelegate; import net.bluehack.tgnet.TLObject; import net.bluehack.tgnet.TLRPC; import net.bluehack.messenger.FileLoader; import net.bluehack.messenger.FileLog; import net.bluehack.messenger.MessagesStorage; import net.bluehack.messenger.NotificationCenter; import net.bluehack.messenger.R; import net.bluehack.ui.ActionBar.ActionBar; import net.bluehack.ui.ActionBar.ActionBarMenu; import net.bluehack.ui.Cells.WallpaperCell; import net.bluehack.ui.ActionBar.BaseFragment; import net.bluehack.ui.Components.LayoutHelper; import net.bluehack.ui.Components.RecyclerListView; import java.io.File; import java.io.FileOutputStream; import java.util.ArrayList; import java.util.HashMap; public class WallpapersActivity extends BaseFragment implements NotificationCenter.NotificationCenterDelegate { private ListAdapter listAdapter; private ImageView backgroundImage; private FrameLayout progressView; private View progressViewBackground; private int selectedBackground; private int selectedColor; private ArrayList<TLRPC.WallPaper> wallPapers = new ArrayList<>(); private HashMap<Integer, TLRPC.WallPaper> wallpappersByIds = new HashMap<>(); private View doneButton; private String loadingFile = null; private File loadingFileObject = null; private TLRPC.PhotoSize loadingSize = null; private String currentPicturePath; private final static int done_button = 1; @Override public boolean onFragmentCreate() { super.onFragmentCreate(); NotificationCenter.getInstance().addObserver(this, NotificationCenter.FileDidFailedLoad); NotificationCenter.getInstance().addObserver(this, NotificationCenter.FileDidLoaded); NotificationCenter.getInstance().addObserver(this, NotificationCenter.wallpapersDidLoaded); SharedPreferences preferences = ApplicationLoader.applicationContext.getSharedPreferences("mainconfig", Activity.MODE_PRIVATE); selectedBackground = preferences.getInt("selectedBackground", 1000001); selectedColor = preferences.getInt("selectedColor", 0); MessagesStorage.getInstance().getWallpapers(); File toFile = new File(ApplicationLoader.getFilesDirFixed(), "wallpaper-temp.jpg"); toFile.delete(); return true; } @Override public void onFragmentDestroy() { super.onFragmentDestroy(); NotificationCenter.getInstance().removeObserver(this, NotificationCenter.FileDidFailedLoad); NotificationCenter.getInstance().removeObserver(this, NotificationCenter.FileDidLoaded); NotificationCenter.getInstance().removeObserver(this, NotificationCenter.wallpapersDidLoaded); } @Override public View createView(Context context) { actionBar.setBackButtonImage(R.drawable.ic_ab_back); actionBar.setAllowOverlayTitle(true); actionBar.setTitle(LocaleController.getString("ChatBackground", R.string.ChatBackground)); actionBar.setActionBarMenuOnItemClick(new ActionBar.ActionBarMenuOnItemClick() { @Override public void onItemClick(int id) { if (id == -1) { finishFragment(); } else if (id == done_button) { boolean done; TLRPC.WallPaper wallPaper = wallpappersByIds.get(selectedBackground); if (wallPaper != null && wallPaper.id != 1000001 && wallPaper instanceof TLRPC.TL_wallPaper) { int width = AndroidUtilities.displaySize.x; int height = AndroidUtilities.displaySize.y; if (width > height) { int temp = width; width = height; height = temp; } TLRPC.PhotoSize size = FileLoader.getClosestPhotoSizeWithSize(wallPaper.sizes, Math.min(width, height)); String fileName = size.location.volume_id + "_" + size.location.local_id + ".jpg"; File f = new File(FileLoader.getInstance().getDirectory(FileLoader.MEDIA_DIR_CACHE), fileName); File toFile = new File(ApplicationLoader.getFilesDirFixed(), "wallpaper.jpg"); try { done = AndroidUtilities.copyFile(f, toFile); } catch (Exception e) { done = false; FileLog.e("tmessages", e); } } else { if (selectedBackground == -1) { File fromFile = new File(ApplicationLoader.getFilesDirFixed(), "wallpaper-temp.jpg"); File toFile = new File(ApplicationLoader.getFilesDirFixed(), "wallpaper.jpg"); done = fromFile.renameTo(toFile); } else { done = true; } } if (done) { SharedPreferences preferences = ApplicationLoader.applicationContext .getSharedPreferences("mainconfig", Activity.MODE_PRIVATE); SharedPreferences.Editor editor = preferences.edit(); editor.putInt("selectedBackground", selectedBackground); editor.putInt("selectedColor", selectedColor); editor.commit(); ApplicationLoader.reloadWallpaper(); } finishFragment(); } } }); ActionBarMenu menu = actionBar.createMenu(); doneButton = menu.addItemWithWidth(done_button, R.drawable.ic_done, AndroidUtilities.dp(56)); FrameLayout frameLayout = new FrameLayout(context); fragmentView = frameLayout; backgroundImage = new ImageView(context); backgroundImage.setScaleType(ImageView.ScaleType.CENTER_CROP); frameLayout.addView(backgroundImage, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.MATCH_PARENT)); backgroundImage.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { return true; } }); progressView = new FrameLayout(context); progressView.setVisibility(View.INVISIBLE); frameLayout.addView(progressView, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.MATCH_PARENT, Gravity.TOP | Gravity.LEFT, 0, 0, 0, 52)); progressViewBackground = new View(context); progressViewBackground.setBackgroundResource(R.drawable.system_loader); progressView.addView(progressViewBackground, LayoutHelper.createFrame(36, 36, Gravity.CENTER)); ProgressBar progressBar = new ProgressBar(context); try { progressBar.setIndeterminateDrawable(context.getResources().getDrawable(R.drawable.loading_animation)); } catch (Exception e) { //don't promt } progressBar.setIndeterminate(true); AndroidUtilities.setProgressBarAnimationDuration(progressBar, 1500); progressView.addView(progressBar, LayoutHelper.createFrame(32, 32, Gravity.CENTER)); RecyclerListView listView = new RecyclerListView(context); listView.setClipToPadding(false); listView.setTag(8); listView.setPadding(AndroidUtilities.dp(40), 0, AndroidUtilities.dp(40), 0); LinearLayoutManager layoutManager = new LinearLayoutManager(context); layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL); listView.setLayoutManager(layoutManager); listView.setDisallowInterceptTouchEvents(true); listView.setOverScrollMode(RecyclerListView.OVER_SCROLL_NEVER); listView.setAdapter(listAdapter = new ListAdapter(context)); frameLayout.addView(listView, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, 102, Gravity.LEFT | Gravity.BOTTOM)); listView.setOnItemClickListener(new RecyclerListView.OnItemClickListener() { @Override public void onItemClick(View view, int position) { if (position == 0) { if (getParentActivity() == null) { return; } AlertDialog.Builder builder = new AlertDialog.Builder(getParentActivity()); CharSequence[] items = new CharSequence[] { LocaleController.getString("FromCamera", R.string.FromCamera), LocaleController.getString("FromGalley", R.string.FromGalley), LocaleController.getString("Cancel", R.string.Cancel) }; builder.setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { try { if (i == 0) { Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); File image = AndroidUtilities.generatePicturePath(); if (image != null) { if (Build.VERSION.SDK_INT >= 24) { takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, FileProvider.getUriForFile(getParentActivity(), BuildConfig.APPLICATION_ID + ".provider", image)); takePictureIntent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION); takePictureIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); } else { takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(image)); } currentPicturePath = image.getAbsolutePath(); } startActivityForResult(takePictureIntent, 10); } else if (i == 1) { Intent photoPickerIntent = new Intent(Intent.ACTION_PICK); photoPickerIntent.setType("image/*"); startActivityForResult(photoPickerIntent, 11); } } catch (Exception e) { FileLog.e("tmessages", e); } } }); showDialog(builder.create()); } else { if (position - 1 < 0 || position - 1 >= wallPapers.size()) { return; } TLRPC.WallPaper wallPaper = wallPapers.get(position - 1); selectedBackground = wallPaper.id; listAdapter.notifyDataSetChanged(); processSelectedBackground(); } } }); processSelectedBackground(); return fragmentView; } @Override public void onActivityResultFragment(int requestCode, int resultCode, Intent data) { if (resultCode == Activity.RESULT_OK) { if (requestCode == 10) { AndroidUtilities.addMediaToGallery(currentPicturePath); FileOutputStream stream = null; try { Point screenSize = AndroidUtilities.getRealScreenSize(); Bitmap bitmap = ImageLoader.loadBitmap(currentPicturePath, null, screenSize.x, screenSize.y, true); File toFile = new File(ApplicationLoader.getFilesDirFixed(), "wallpaper-temp.jpg"); stream = new FileOutputStream(toFile); bitmap.compress(Bitmap.CompressFormat.JPEG, 87, stream); selectedBackground = -1; selectedColor = 0; Drawable drawable = backgroundImage.getDrawable(); backgroundImage.setImageBitmap(bitmap); } catch (Exception e) { FileLog.e("tmessages", e); } finally { try { if (stream != null) { stream.close(); } } catch (Exception e) { FileLog.e("tmessages", e); } } currentPicturePath = null; } else if (requestCode == 11) { if (data == null || data.getData() == null) { return; } try { Point screenSize = AndroidUtilities.getRealScreenSize(); Bitmap bitmap = ImageLoader.loadBitmap(null, data.getData(), screenSize.x, screenSize.y, true); File toFile = new File(ApplicationLoader.getFilesDirFixed(), "wallpaper-temp.jpg"); FileOutputStream stream = new FileOutputStream(toFile); bitmap.compress(Bitmap.CompressFormat.JPEG, 87, stream); selectedBackground = -1; selectedColor = 0; Drawable drawable = backgroundImage.getDrawable(); backgroundImage.setImageBitmap(bitmap); } catch (Exception e) { FileLog.e("tmessages", e); } } } } @Override public void saveSelfArgs(Bundle args) { if (currentPicturePath != null) { args.putString("path", currentPicturePath); } } @Override public void restoreSelfArgs(Bundle args) { currentPicturePath = args.getString("path"); } private void processSelectedBackground() { TLRPC.WallPaper wallPaper = wallpappersByIds.get(selectedBackground); if (selectedBackground != -1 && selectedBackground != 1000001 && wallPaper != null && wallPaper instanceof TLRPC.TL_wallPaper) { int width = AndroidUtilities.displaySize.x; int height = AndroidUtilities.displaySize.y; if (width > height) { int temp = width; width = height; height = temp; } TLRPC.PhotoSize size = FileLoader.getClosestPhotoSizeWithSize(wallPaper.sizes, Math.min(width, height)); if (size == null) { return; } String fileName = size.location.volume_id + "_" + size.location.local_id + ".jpg"; File f = new File(FileLoader.getInstance().getDirectory(FileLoader.MEDIA_DIR_CACHE), fileName); if (!f.exists()) { int result[] = AndroidUtilities.calcDrawableColor(backgroundImage.getDrawable()); progressViewBackground.getBackground() .setColorFilter(new PorterDuffColorFilter(result[0], PorterDuff.Mode.MULTIPLY)); loadingFile = fileName; loadingFileObject = f; doneButton.setEnabled(false); progressView.setVisibility(View.VISIBLE); loadingSize = size; selectedColor = 0; FileLoader.getInstance().loadFile(size, null, true); backgroundImage.setBackgroundColor(0); } else { if (loadingFile != null) { FileLoader.getInstance().cancelLoadFile(loadingSize); } loadingFileObject = null; loadingFile = null; loadingSize = null; try { backgroundImage.setImageURI(Uri.fromFile(f)); } catch (Throwable e) { FileLog.e("tmessages", e); } backgroundImage.setBackgroundColor(0); selectedColor = 0; doneButton.setEnabled(true); progressView.setVisibility(View.GONE); } } else { if (loadingFile != null) { FileLoader.getInstance().cancelLoadFile(loadingSize); } if (selectedBackground == 1000001) { backgroundImage.setImageResource(R.drawable.background_hd); backgroundImage.setBackgroundColor(0); selectedColor = 0; } else if (selectedBackground == -1) { File toFile = new File(ApplicationLoader.getFilesDirFixed(), "wallpaper-temp.jpg"); if (!toFile.exists()) { toFile = new File(ApplicationLoader.getFilesDirFixed(), "wallpaper.jpg"); } if (toFile.exists()) { backgroundImage.setImageURI(Uri.fromFile(toFile)); } else { selectedBackground = 1000001; processSelectedBackground(); } } else { if (wallPaper == null) { return; } if (wallPaper instanceof TLRPC.TL_wallPaperSolid) { Drawable drawable = backgroundImage.getDrawable(); backgroundImage.setImageBitmap(null); selectedColor = 0xff000000 | wallPaper.bg_color; backgroundImage.setBackgroundColor(selectedColor); } } loadingFileObject = null; loadingFile = null; loadingSize = null; doneButton.setEnabled(true); progressView.setVisibility(View.GONE); } } @SuppressWarnings("unchecked") @Override public void didReceivedNotification(int id, final Object... args) { if (id == NotificationCenter.FileDidFailedLoad) { String location = (String) args[0]; if (loadingFile != null && loadingFile.equals(location)) { loadingFileObject = null; loadingFile = null; loadingSize = null; progressView.setVisibility(View.GONE); doneButton.setEnabled(false); } } else if (id == NotificationCenter.FileDidLoaded) { String location = (String) args[0]; if (loadingFile != null && loadingFile.equals(location)) { backgroundImage.setImageURI(Uri.fromFile(loadingFileObject)); progressView.setVisibility(View.GONE); backgroundImage.setBackgroundColor(0); doneButton.setEnabled(true); loadingFileObject = null; loadingFile = null; loadingSize = null; } } else if (id == NotificationCenter.wallpapersDidLoaded) { wallPapers = (ArrayList<TLRPC.WallPaper>) args[0]; wallpappersByIds.clear(); for (TLRPC.WallPaper wallPaper : wallPapers) { wallpappersByIds.put(wallPaper.id, wallPaper); } if (listAdapter != null) { listAdapter.notifyDataSetChanged(); } if (!wallPapers.isEmpty() && backgroundImage != null) { processSelectedBackground(); } loadWallpapers(); } } private void loadWallpapers() { TLRPC.TL_account_getWallPapers req = new TLRPC.TL_account_getWallPapers(); int reqId = ConnectionsManager.getInstance().sendRequest(req, new RequestDelegate() { @Override public void run(final TLObject response, TLRPC.TL_error error) { if (error != null) { return; } AndroidUtilities.runOnUIThread(new Runnable() { @Override public void run() { wallPapers.clear(); TLRPC.Vector res = (TLRPC.Vector) response; wallpappersByIds.clear(); for (Object obj : res.objects) { wallPapers.add((TLRPC.WallPaper) obj); wallpappersByIds.put(((TLRPC.WallPaper) obj).id, (TLRPC.WallPaper) obj); } if (listAdapter != null) { listAdapter.notifyDataSetChanged(); } if (backgroundImage != null) { processSelectedBackground(); } MessagesStorage.getInstance().putWallpapers(wallPapers); } }); } }); ConnectionsManager.getInstance().bindRequestToGuid(reqId, classGuid); } @Override public void onResume() { super.onResume(); if (listAdapter != null) { listAdapter.notifyDataSetChanged(); } processSelectedBackground(); } private class ListAdapter extends RecyclerView.Adapter { private class Holder extends RecyclerView.ViewHolder { public Holder(View itemView) { super(itemView); } } private Context mContext; public ListAdapter(Context context) { mContext = context; } @Override public int getItemCount() { return 1 + wallPapers.size(); } @Override public long getItemId(int i) { return i; } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) { WallpaperCell view = new WallpaperCell(mContext); return new Holder(view); } @Override public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int i) { ((WallpaperCell) viewHolder.itemView).setWallpaper(i == 0 ? null : wallPapers.get(i - 1), selectedBackground); } } }