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 org.telegram.ui; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.os.Vibrator; import android.support.v4.content.ContextCompat; import android.text.Editable; import android.text.InputFilter; import android.text.InputType; import android.text.TextWatcher; import android.util.TypedValue; import android.view.Gravity; import android.view.KeyEvent; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.EditorInfo; import android.widget.EditText; import android.widget.FrameLayout; import android.widget.LinearLayout; import android.widget.ScrollView; import android.widget.TextView; import org.telegram.messenger.AndroidUtilities; import org.telegram.messenger.FileLog; import org.telegram.messenger.LocaleController; import org.telegram.messenger.MessagesController; import org.telegram.messenger.MessagesStorage; import org.telegram.messenger.NotificationCenter; import org.telegram.messenger.R; import org.telegram.messenger.UserConfig; import org.telegram.tgnet.TLRPC; import org.telegram.ui.ActionBar.ActionBar; import org.telegram.ui.ActionBar.ActionBarMenu; import org.telegram.ui.ActionBar.BaseFragment; import org.telegram.ui.Cells.ShadowSectionCell; import org.telegram.ui.Cells.TextCheckCell; import org.telegram.ui.Cells.TextInfoPrivacyCell; import org.telegram.ui.Cells.TextSettingsCell; import org.telegram.ui.Components.AvatarDrawable; import org.telegram.ui.Components.AvatarUpdater; import org.telegram.ui.Components.BackupImageView; import org.telegram.ui.Components.LayoutHelper; import java.util.concurrent.Semaphore; public class ChannelEditActivity extends BaseFragment implements AvatarUpdater.AvatarUpdaterDelegate, NotificationCenter.NotificationCenterDelegate { private View doneButton; private EditText nameTextView; private EditText descriptionTextView; private BackupImageView avatarImage; private AvatarDrawable avatarDrawable; private AvatarUpdater avatarUpdater; private ProgressDialog progressDialog; private TextSettingsCell typeCell; private TextSettingsCell adminCell; private TLRPC.FileLocation avatar; private TLRPC.Chat currentChat; private TLRPC.ChatFull info; private int chatId; private TLRPC.InputFile uploadedAvatar; private boolean signMessages; private boolean createAfterUpload; private boolean donePressed; private final static int done_button = 1; public ChannelEditActivity(Bundle args) { super(args); avatarDrawable = new AvatarDrawable(); avatarUpdater = new AvatarUpdater(); chatId = args.getInt("chat_id", 0); } @SuppressWarnings("unchecked") @Override public boolean onFragmentCreate() { currentChat = MessagesController.getInstance().getChat(chatId); if (currentChat == null) { final Semaphore semaphore = new Semaphore(0); MessagesStorage.getInstance().getStorageQueue().postRunnable(new Runnable() { @Override public void run() { currentChat = MessagesStorage.getInstance().getChat(chatId); semaphore.release(); } }); try { semaphore.acquire(); } catch (Exception e) { FileLog.e("tmessages", e); } if (currentChat != null) { MessagesController.getInstance().putChat(currentChat, true); } else { return false; } if (info == null) { MessagesStorage.getInstance().loadChatInfo(chatId, semaphore, false, false); try { semaphore.acquire(); } catch (Exception e) { FileLog.e("tmessages", e); } if (info == null) { return false; } } } avatarUpdater.parentFragment = this; avatarUpdater.delegate = this; signMessages = currentChat.signatures; NotificationCenter.getInstance().addObserver(this, NotificationCenter.chatInfoDidLoaded); NotificationCenter.getInstance().addObserver(this, NotificationCenter.updateInterfaces); return super.onFragmentCreate(); } @Override public void onFragmentDestroy() { super.onFragmentDestroy(); if (avatarUpdater != null) { avatarUpdater.clear(); } NotificationCenter.getInstance().removeObserver(this, NotificationCenter.chatInfoDidLoaded); NotificationCenter.getInstance().removeObserver(this, NotificationCenter.updateInterfaces); AndroidUtilities.removeAdjustResize(getParentActivity(), classGuid); } @Override public void onResume() { super.onResume(); AndroidUtilities.requestAdjustResize(getParentActivity(), classGuid); } @Override public View createView(Context context) { actionBar.setBackButtonImage(R.drawable.ic_ab_back); actionBar.setAllowOverlayTitle(true); actionBar.setActionBarMenuOnItemClick(new ActionBar.ActionBarMenuOnItemClick() { @Override public void onItemClick(int id) { if (id == -1) { finishFragment(); } else if (id == done_button) { if (donePressed) { return; } if (nameTextView.length() == 0) { Vibrator v = (Vibrator) getParentActivity().getSystemService(Context.VIBRATOR_SERVICE); if (v != null) { v.vibrate(200); } AndroidUtilities.shakeView(nameTextView, 2, 0); return; } donePressed = true; if (avatarUpdater.uploadingAvatar != null) { createAfterUpload = true; progressDialog = new ProgressDialog(getParentActivity()); progressDialog.setMessage(LocaleController.getString("Loading", R.string.Loading)); progressDialog.setCanceledOnTouchOutside(false); progressDialog.setCancelable(false); progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, LocaleController.getString("Cancel", R.string.Cancel), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { createAfterUpload = false; progressDialog = null; donePressed = false; try { dialog.dismiss(); } catch (Exception e) { FileLog.e("tmessages", e); } } }); progressDialog.show(); return; } if (!currentChat.title.equals(nameTextView.getText().toString())) { MessagesController.getInstance().changeChatTitle(chatId, nameTextView.getText().toString()); } if (info != null && !info.about.equals(descriptionTextView.getText().toString())) { MessagesController.getInstance().updateChannelAbout(chatId, descriptionTextView.getText().toString(), info); } if (signMessages != currentChat.signatures) { currentChat.signatures = true; MessagesController.getInstance().toogleChannelSignatures(chatId, signMessages); } if (uploadedAvatar != null) { MessagesController.getInstance().changeChatAvatar(chatId, uploadedAvatar); } else if (avatar == null && currentChat.photo instanceof TLRPC.TL_chatPhoto) { MessagesController.getInstance().changeChatAvatar(chatId, null); } finishFragment(); } } }); ActionBarMenu menu = actionBar.createMenu(); doneButton = menu.addItemWithWidth(done_button, R.drawable.ic_done, AndroidUtilities.dp(56)); LinearLayout linearLayout; fragmentView = new ScrollView(context); fragmentView.setBackgroundColor(ContextCompat.getColor(context, R.color.settings_background)); ScrollView scrollView = (ScrollView) fragmentView; scrollView.setFillViewport(true); linearLayout = new LinearLayout(context); scrollView.addView(linearLayout, new ScrollView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)); linearLayout.setOrientation(LinearLayout.VERTICAL); actionBar.setTitle(LocaleController.getString("ChannelEdit", R.string.ChannelEdit)); LinearLayout linearLayout2 = new LinearLayout(context); linearLayout2.setOrientation(LinearLayout.VERTICAL); linearLayout2.setElevation(AndroidUtilities.dp(2)); linearLayout2.setBackgroundColor(ContextCompat.getColor(context, R.color.card_background)); linearLayout.addView(linearLayout2, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); FrameLayout frameLayout = new FrameLayout(context); linearLayout2.addView(frameLayout, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); avatarImage = new BackupImageView(context); avatarImage.setRoundRadius(AndroidUtilities.dp(32)); avatarDrawable.setInfo(5, null, null, false); avatarDrawable.setDrawPhoto(true); frameLayout.addView(avatarImage, LayoutHelper.createFrame(64, 64, Gravity.TOP | (LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT), LocaleController.isRTL ? 0 : 16, 12, LocaleController.isRTL ? 16 : 0, 12)); avatarImage.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if (getParentActivity() == null) { return; } AlertDialog.Builder builder = new AlertDialog.Builder(getParentActivity()); CharSequence[] items; if (avatar != null) { items = new CharSequence[] { LocaleController.getString("FromCamera", R.string.FromCamera), LocaleController.getString("FromGalley", R.string.FromGalley), LocaleController.getString("DeletePhoto", R.string.DeletePhoto) }; } else { items = new CharSequence[] { LocaleController.getString("FromCamera", R.string.FromCamera), LocaleController.getString("FromGalley", R.string.FromGalley) }; } builder.setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { if (i == 0) { avatarUpdater.openCamera(); } else if (i == 1) { avatarUpdater.openGallery(); } else if (i == 2) { avatar = null; uploadedAvatar = null; avatarImage.setImage(avatar, "50_50", avatarDrawable); } } }); showDialog(builder.create()); } }); nameTextView = new EditText(context); if (currentChat.megagroup) { nameTextView.setHint(LocaleController.getString("GroupName", R.string.GroupName)); } else { nameTextView.setHint(LocaleController.getString("EnterChannelName", R.string.EnterChannelName)); } nameTextView.setMaxLines(4); nameTextView.setGravity(Gravity.CENTER_VERTICAL | (LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT)); nameTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16); //nameTextView.setHintTextColor(0xff979797); nameTextView.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); nameTextView.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES); nameTextView.setPadding(0, 0, 0, AndroidUtilities.dp(8)); InputFilter[] inputFilters = new InputFilter[1]; inputFilters[0] = new InputFilter.LengthFilter(100); nameTextView.setFilters(inputFilters); AndroidUtilities.clearCursorDrawable(nameTextView); nameTextView.setTextColor(ContextCompat.getColor(context, R.color.primary_text)); frameLayout.addView(nameTextView, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT, Gravity.CENTER_VERTICAL, LocaleController.isRTL ? 16 : 96, 0, LocaleController.isRTL ? 96 : 16, 0)); nameTextView.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence s, int start, int count, int after) { } @Override public void onTextChanged(CharSequence s, int start, int before, int count) { } @Override public void afterTextChanged(Editable s) { avatarDrawable.setInfo(5, nameTextView.length() > 0 ? nameTextView.getText().toString() : null, null, false); avatarImage.invalidate(); } }); View lineView = new View(context); lineView.setBackgroundColor(ContextCompat.getColor(context, R.color.card_divider)); linearLayout.addView(lineView, new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 1)); linearLayout2 = new LinearLayout(context); linearLayout2.setOrientation(LinearLayout.VERTICAL); linearLayout2.setBackgroundColor(ContextCompat.getColor(context, R.color.card_background)); linearLayout2.setElevation(AndroidUtilities.dp(2)); linearLayout.addView(linearLayout2, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); descriptionTextView = new EditText(context); descriptionTextView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 16); //descriptionTextView.setHintTextColor(0xff979797); descriptionTextView.setTextColor(ContextCompat.getColor(context, R.color.primary_text)); descriptionTextView.setPadding(0, 0, 0, AndroidUtilities.dp(6)); descriptionTextView.setBackgroundDrawable(null); descriptionTextView.setGravity(LocaleController.isRTL ? Gravity.RIGHT : Gravity.LEFT); descriptionTextView.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES | InputType.TYPE_TEXT_FLAG_MULTI_LINE | InputType.TYPE_TEXT_FLAG_AUTO_CORRECT); descriptionTextView.setImeOptions(EditorInfo.IME_ACTION_DONE); inputFilters = new InputFilter[1]; inputFilters[0] = new InputFilter.LengthFilter(255); descriptionTextView.setFilters(inputFilters); descriptionTextView.setHint(LocaleController.getString("DescriptionOptionalPlaceholder", R.string.DescriptionOptionalPlaceholder)); AndroidUtilities.clearCursorDrawable(descriptionTextView); linearLayout2.addView(descriptionTextView, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT, 17, 12, 17, 6)); descriptionTextView.setOnEditorActionListener(new TextView.OnEditorActionListener() { @Override public boolean onEditorAction(TextView textView, int i, KeyEvent keyEvent) { if (i == EditorInfo.IME_ACTION_DONE && doneButton != null) { doneButton.performClick(); return true; } return false; } }); descriptionTextView.addTextChangedListener(new TextWatcher() { @Override public void beforeTextChanged(CharSequence charSequence, int i, int i2, int i3) { } @Override public void onTextChanged(CharSequence charSequence, int i, int i2, int i3) { } @Override public void afterTextChanged(Editable editable) { } }); ShadowSectionCell sectionCell = new ShadowSectionCell(context); sectionCell.setSize(20); linearLayout.addView(sectionCell, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); if (currentChat.megagroup || !currentChat.megagroup) { frameLayout = new FrameLayout(context); frameLayout.setElevation(AndroidUtilities.dp(2)); frameLayout.setBackgroundColor(ContextCompat.getColor(context, R.color.card_background)); linearLayout.addView(frameLayout, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); typeCell = new TextSettingsCell(context); updateTypeCell(); typeCell.setForeground(R.drawable.list_selector); frameLayout.addView(typeCell, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); lineView = new View(context); lineView.setBackgroundColor(ContextCompat.getColor(context, R.color.card_divider)); linearLayout.addView(lineView, new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 1)); frameLayout = new FrameLayout(context); frameLayout.setElevation(AndroidUtilities.dp(2)); frameLayout.setBackgroundColor(ContextCompat.getColor(context, R.color.card_background)); linearLayout.addView(frameLayout, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); if (!currentChat.megagroup) { TextCheckCell textCheckCell = new TextCheckCell(context); textCheckCell.setForeground(R.drawable.list_selector); textCheckCell.setTextAndCheck( LocaleController.getString("ChannelSignMessages", R.string.ChannelSignMessages), signMessages, false); frameLayout.addView(textCheckCell, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); textCheckCell.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { signMessages = !signMessages; ((TextCheckCell) v).setChecked(signMessages); } }); TextInfoPrivacyCell infoCell = new TextInfoPrivacyCell(context); //infoCell.setBackgroundResource(R.drawable.greydivider); infoCell.setText( LocaleController.getString("ChannelSignMessagesInfo", R.string.ChannelSignMessagesInfo)); linearLayout.addView(infoCell, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); } else { adminCell = new TextSettingsCell(context); updateAdminCell(); adminCell.setForeground(R.drawable.list_selector); frameLayout.addView(adminCell, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); adminCell.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Bundle args = new Bundle(); args.putInt("chat_id", chatId); args.putInt("type", 1); presentFragment(new ChannelUsersActivity(args)); } }); sectionCell = new ShadowSectionCell(context); sectionCell.setSize(20); linearLayout.addView(sectionCell, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); /*if (!currentChat.creator) { sectionCell.setBackgroundResource(R.drawable.greydivider_bottom); }*/ } } if (currentChat.creator) { frameLayout = new FrameLayout(context); frameLayout.setElevation(AndroidUtilities.dp(2)); frameLayout.setBackgroundColor(ContextCompat.getColor(context, R.color.card_background)); linearLayout.addView(frameLayout, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); TextSettingsCell textCell = new TextSettingsCell(context); textCell.setTextColor(0xffed3d39); textCell.setBackgroundResource(R.drawable.list_selector); if (currentChat.megagroup) { textCell.setText(LocaleController.getString("DeleteMega", R.string.DeleteMega), false); } else { textCell.setText(LocaleController.getString("ChannelDelete", R.string.ChannelDelete), false); } frameLayout.addView(textCell, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); textCell.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { AlertDialog.Builder builder = new AlertDialog.Builder(getParentActivity()); if (currentChat.megagroup) { builder.setMessage(LocaleController.getString("MegaDeleteAlert", R.string.MegaDeleteAlert)); } else { builder.setMessage( LocaleController.getString("ChannelDeleteAlert", R.string.ChannelDeleteAlert)); } builder.setTitle(LocaleController.getString("AppName", R.string.AppName)); builder.setPositiveButton(LocaleController.getString("OK", R.string.OK), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { NotificationCenter.getInstance().removeObserver(this, NotificationCenter.closeChats); if (AndroidUtilities.isTablet()) { NotificationCenter.getInstance().postNotificationName( NotificationCenter.closeChats, -(long) chatId); } else { NotificationCenter.getInstance() .postNotificationName(NotificationCenter.closeChats); } MessagesController.getInstance().deleteUserFromChat(chatId, MessagesController.getInstance().getUser(UserConfig.getClientUserId()), info); finishFragment(); } }); builder.setNegativeButton(LocaleController.getString("Cancel", R.string.Cancel), null); showDialog(builder.create()); } }); TextInfoPrivacyCell infoCell = new TextInfoPrivacyCell(context); //infoCell.setBackgroundResource(R.drawable.greydivider_bottom); if (currentChat.megagroup) { infoCell.setText(LocaleController.getString("MegaDeleteInfo", R.string.MegaDeleteInfo)); } else { infoCell.setText(LocaleController.getString("ChannelDeleteInfo", R.string.ChannelDeleteInfo)); } linearLayout.addView(infoCell, LayoutHelper.createLinear(LayoutHelper.MATCH_PARENT, LayoutHelper.WRAP_CONTENT)); } nameTextView.setText(currentChat.title); nameTextView.setSelection(nameTextView.length()); if (info != null) { descriptionTextView.setText(info.about); } if (currentChat.photo != null) { avatar = currentChat.photo.photo_small; avatarImage.setImage(avatar, "50_50", avatarDrawable); } else { avatarImage.setImageDrawable(avatarDrawable); } return fragmentView; } @Override public void didReceivedNotification(int id, Object... args) { if (id == NotificationCenter.chatInfoDidLoaded) { TLRPC.ChatFull chatFull = (TLRPC.ChatFull) args[0]; if (chatFull.id == chatId) { if (info == null) { descriptionTextView.setText(chatFull.about); } info = chatFull; updateAdminCell(); updateTypeCell(); } } else if (id == NotificationCenter.updateInterfaces) { int updateMask = (Integer) args[0]; if ((updateMask & MessagesController.UPDATE_MASK_CHANNEL) != 0) { updateTypeCell(); } } } @Override public void didUploadedPhoto(final TLRPC.InputFile file, final TLRPC.PhotoSize small, final TLRPC.PhotoSize big) { AndroidUtilities.runOnUIThread(new Runnable() { @Override public void run() { uploadedAvatar = file; avatar = small.location; avatarImage.setImage(avatar, "50_50", avatarDrawable); if (createAfterUpload) { try { if (progressDialog != null && progressDialog.isShowing()) { progressDialog.dismiss(); progressDialog = null; } } catch (Exception e) { FileLog.e("tmessages", e); } doneButton.performClick(); } } }); } @Override public void onActivityResultFragment(int requestCode, int resultCode, Intent data) { avatarUpdater.onActivityResult(requestCode, resultCode, data); } @Override public void saveSelfArgs(Bundle args) { if (avatarUpdater != null && avatarUpdater.currentPicturePath != null) { args.putString("path", avatarUpdater.currentPicturePath); } if (nameTextView != null) { String text = nameTextView.getText().toString(); if (text != null && text.length() != 0) { args.putString("nameTextView", text); } } } @Override public void restoreSelfArgs(Bundle args) { if (avatarUpdater != null) { avatarUpdater.currentPicturePath = args.getString("path"); } } public void setInfo(TLRPC.ChatFull chatFull) { info = chatFull; } private void updateTypeCell() { String type = currentChat.username == null || currentChat.username.length() == 0 ? LocaleController.getString("ChannelTypePrivate", R.string.ChannelTypePrivate) : LocaleController.getString("ChannelTypePublic", R.string.ChannelTypePublic); if (currentChat.megagroup) { typeCell.setTextAndValue(LocaleController.getString("GroupType", R.string.GroupType), type, false); } else { typeCell.setTextAndValue(LocaleController.getString("ChannelType", R.string.ChannelType), type, false); } if (currentChat.creator && (info == null || info.can_set_username)) { typeCell.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Bundle args = new Bundle(); args.putInt("chat_id", chatId); ChannelEditTypeActivity fragment = new ChannelEditTypeActivity(args); fragment.setInfo(info); presentFragment(fragment); } }); typeCell.setTextColor(ContextCompat.getColor(fragmentView.getContext(), R.color.primary_text)); typeCell.setTextValueColor(ContextCompat.getColor(fragmentView.getContext(), R.color.colorAccent)); } else { typeCell.setOnClickListener(null); typeCell.setTextColor(ContextCompat.getColor(fragmentView.getContext(), R.color.disabled_text)); typeCell.setTextValueColor(ContextCompat.getColor(fragmentView.getContext(), R.color.disabled_text)); } } private void updateAdminCell() { if (adminCell == null) { return; } if (info != null) { adminCell.setTextAndValue( LocaleController.getString("ChannelAdministrators", R.string.ChannelAdministrators), String.format("%d", info.admins_count), false); } else { adminCell.setText(LocaleController.getString("ChannelAdministrators", R.string.ChannelAdministrators), false); } } }