Java tutorial
/* * Copyright 2014 Luke Klinker * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.klinker.android.twitter.views; import android.content.Context; import android.content.pm.PackageManager; import android.os.Build; import android.support.v4.view.PagerAdapter; import android.support.v4.view.ViewPager; import android.util.AttributeSet; import android.util.TypedValue; import android.view.Display; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.widget.GridView; import android.widget.ImageButton; import android.widget.LinearLayout; import com.astuetz.PagerSlidingTabStrip; import com.klinker.android.twitter.R; import com.klinker.android.twitter.adapters.emoji.NatureEmojiAdapter; import com.klinker.android.twitter.adapters.emoji.OtherEmojiAdapter; import com.klinker.android.twitter.adapters.emoji.PeopleEmojiAdapter; import com.klinker.android.twitter.adapters.emoji.RecentEmojiAdapter; import com.klinker.android.twitter.adapters.emoji.ThingsEmojiAdapter; import com.klinker.android.twitter.adapters.emoji.TransEmojiAdapter; import com.klinker.android.twitter.data.sq_lite.EmojiDataSource; import com.klinker.android.twitter.data.sq_lite.Recent; import com.klinker.android.twitter.utils.EmojiUtils; import java.util.ArrayList; public class EmojiKeyboard extends LinearLayout { private HoloEditText input; private ViewPager emojiPager; private EmojiPagerAdapter emojiPagerAdapter; private PagerSlidingTabStrip tabs; private ImageButton backspace; private int keyboardHeight; private static EmojiDataSource dataSource; private static ArrayList<Recent> recents; public EmojiKeyboard(Context context, AttributeSet attrs) { super(context, attrs); } @Override protected void onFinishInflate() { try { try { getContext().getPackageManager().getPackageInfo("com.klinker.android.emoji_keyboard_trial", PackageManager.GET_META_DATA); } catch (Exception e) { getContext().getPackageManager().getPackageInfo("com.klinker.android.emoji_keyboard_trial_ios", PackageManager.GET_META_DATA); } emojiPager = (ViewPager) findViewById(R.id.emojiKeyboardPager); backspace = (ImageButton) findViewById(R.id.delete); Display d = ((WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay(); keyboardHeight = (int) (d.getHeight() / 3.0); dataSource = new EmojiDataSource(getContext()); dataSource.open(); recents = (ArrayList<Recent>) dataSource.getAllRecents(); emojiPager.setLayoutParams( new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, keyboardHeight)); tabs = (PagerSlidingTabStrip) findViewById(R.id.emojiTabs); tabs.setIndicatorColor(getResources().getColor(R.color.app_color)); emojiPagerAdapter = new EmojiPagerAdapter(getContext(), emojiPager); emojiPager.setAdapter(emojiPagerAdapter); tabs.setViewPager(emojiPager); emojiPager.setCurrentItem(1); backspace.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { removeText(); } }); } catch (Exception e) { } } public void setAttached(HoloEditText et) { this.input = et; } public boolean isShowing() { return getVisibility() == View.VISIBLE; } public void setVisibility(final boolean visible) { setVisibility(View.VISIBLE); Animation animation = AnimationUtils.loadAnimation(getContext(), visible ? R.anim.emoji_slide_out : R.anim.emoji_slide_in); animation.setAnimationListener(new Animation.AnimationListener() { @Override public void onAnimationStart(Animation animation) { } @Override public void onAnimationEnd(Animation animation) { setVisibility(visible ? View.VISIBLE : View.GONE); } @Override public void onAnimationRepeat(Animation animation) { } }); startAnimation(animation); } public void toggleVisibility() { setVisibility(getVisibility() != View.VISIBLE); } public void insertEmoji(String emoji, int icon) { input.setEnabled(false); int beforeSelectionStart = input.getSelectionStart(); int beforeLength = input.getText().toString().length(); CharSequence before = input.getText().subSequence(0, beforeSelectionStart); CharSequence after = input.getText().subSequence(input.getSelectionEnd(), beforeLength); input.setText(android.text.TextUtils.concat(before, Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT && !EmojiUtils.ios ? emoji : EmojiUtils.getSmiledText(getContext(), emoji), after)); input.setEnabled(true); input.setSelection(beforeSelectionStart + (input.getText().toString().length() - beforeLength)); for (Recent recent1 : recents) { if (recent1.text.equals(emoji)) { dataSource.updateRecent(icon + ""); recent1.count++; return; } } Recent recent = dataSource.createRecent(emoji, icon + ""); if (recent != null) recents.add(recent); } private void removeText() { String currentText = input.getText().toString(); if (currentText.length() > 0 && input.getSelectionStart() > 0) { input.setEnabled(false); int selection = input.getSelectionStart(); input.setText(EmojiUtils.getSmiledText(getContext(), new StringBuilder(input.getText().toString()).deleteCharAt(selection - 1).toString())); input.setEnabled(true); input.setSelection(selection - 1); } } public void removeRecent(int position) { try { dataSource.deleteRecent(recents.get(position).id); recents.remove(position); emojiPagerAdapter.notifyDataSetChanged(); } catch (Exception e) { } } private class EmojiPagerAdapter extends PagerAdapter { private final String[] TITLES = { getContext().getString(R.string.recent), getContext().getString(R.string.people), getContext().getString(R.string.things), getContext().getString(R.string.nature), getContext().getString(R.string.places), getContext().getString(R.string.symbols) }; private ViewPager pager; private ArrayList<View> pages; public EmojiPagerAdapter(Context context, ViewPager pager) { super(); this.pager = pager; this.pages = new ArrayList<View>(); pages.add(new KeyboardView(context, 0, recents).getView()); pages.add(new KeyboardView(context, 1).getView()); pages.add(new KeyboardView(context, 2).getView()); pages.add(new KeyboardView(context, 3).getView()); pages.add(new KeyboardView(context, 4).getView()); pages.add(new KeyboardView(context, 5).getView()); } @Override public View instantiateItem(ViewGroup container, int position) { pager.addView(pages.get(position), position, keyboardHeight); return pages.get(position); } @Override public void destroyItem(ViewGroup container, int position, Object object) { pager.removeView(pages.get(position)); } @Override public CharSequence getPageTitle(int position) { return TITLES[position]; } @Override public int getCount() { return TITLES.length; } @Override public boolean isViewFromObject(View view, Object object) { return view == object; } } private class KeyboardView { private int position; private Context context; private ArrayList<Recent> recents; public KeyboardView(Context context, int position) { this.context = context; this.position = position; } public KeyboardView(Context context, int position, ArrayList<Recent> recents) { this(context, position); this.recents = recents; } public View getView() { final GridView emojiGrid = new GridView(context); emojiGrid.setColumnWidth((int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 50, context.getResources().getDisplayMetrics())); emojiGrid.setNumColumns(GridView.AUTO_FIT); if (position == 0) emojiGrid.setAdapter(new RecentEmojiAdapter(context, EmojiKeyboard.this, recents)); else if (position == 1) emojiGrid.setAdapter(new PeopleEmojiAdapter(context, EmojiKeyboard.this)); else if (position == 2) emojiGrid.setAdapter(new ThingsEmojiAdapter(context, EmojiKeyboard.this)); else if (position == 3) emojiGrid.setAdapter(new NatureEmojiAdapter(context, EmojiKeyboard.this)); else if (position == 4) emojiGrid.setAdapter(new TransEmojiAdapter(context, EmojiKeyboard.this)); else emojiGrid.setAdapter(new OtherEmojiAdapter(context, EmojiKeyboard.this)); return emojiGrid; } } }