Java tutorial
/* * Copyright (C) 2014 The CyanogenMod Project * * 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.cyanogenmod.eleven.ui; import android.content.Context; import android.support.v4.app.Fragment; import android.util.AttributeSet; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.PopupMenu; import android.widget.TextView; import com.cyanogenmod.eleven.R; import com.cyanogenmod.eleven.loaders.NowPlayingCursor; import com.cyanogenmod.eleven.loaders.QueueLoader; import com.cyanogenmod.eleven.menu.CreateNewPlaylist; import com.cyanogenmod.eleven.utils.MusicUtils; import com.cyanogenmod.eleven.utils.NavUtils; /** * Simple Header bar wrapper class that also has its own menu bar button. * It can collect a list of popup menu creators and create a pop up menu * from the list */ public class HeaderBar extends LinearLayout { private ImageView mMenuButton; private ImageView mSearchButton; private ImageView mBackButton; private TextView mTitleText; private PopupMenu mPopupMenu; private Fragment mFragment; public HeaderBar(Context context, AttributeSet attrs) { super(context, attrs); } public void setFragment(Fragment activity) { mFragment = activity; } @Override protected void onFinishInflate() { super.onFinishInflate(); mMenuButton = (ImageView) findViewById(R.id.header_bar_menu_button); mMenuButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showPopupMenu(); } }); mSearchButton = (ImageView) findViewById(R.id.header_bar_search_button); mSearchButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { NavUtils.openSearch(mFragment.getActivity(), ""); } }); mBackButton = (ImageView) findViewById(R.id.header_bar_up); mTitleText = (TextView) findViewById(R.id.header_bar_title); } /** * @param resId set the title text */ public void setTitleText(int resId) { mTitleText.setText(resId); } /** * @param text set the title text */ public void setTitleText(String text) { mTitleText.setText(text); } /** * Sets the back button listener * @param listener listener */ public void setBackListener(final OnClickListener listener) { mBackButton.setOnClickListener(listener); setOnClickListener(listener); } /** * Sets the header bar listener * @param listener listener */ public void setHeaderClickListener(final OnClickListener listener) { setOnClickListener(listener); } public void showPopupMenu() { // create the popup menu if (mPopupMenu == null) { mPopupMenu = new PopupMenu(mFragment.getActivity(), mMenuButton); mPopupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem item) { return onPopupMenuItemClick(item); } }); } final Menu menu = mPopupMenu.getMenu(); final MenuInflater inflater = mPopupMenu.getMenuInflater(); menu.clear(); // Shuffle all inflater.inflate(R.menu.shuffle_all, menu); if (MusicUtils.getQueueSize() > 0) { // save queue/clear queue inflater.inflate(R.menu.queue, menu); } // Settings inflater.inflate(R.menu.activity_base, menu); // show the popup mPopupMenu.show(); } public boolean onPopupMenuItemClick(final MenuItem item) { switch (item.getItemId()) { case R.id.menu_shuffle_all: // Shuffle all the songs MusicUtils.shuffleAll(mFragment.getActivity()); return true; case R.id.menu_settings: // Settings NavUtils.openSettings(mFragment.getActivity()); return true; case R.id.menu_save_queue: NowPlayingCursor queue = (NowPlayingCursor) QueueLoader.makeQueueCursor(mFragment.getActivity()); CreateNewPlaylist.getInstance(MusicUtils.getSongListForCursor(queue)) .show(mFragment.getFragmentManager(), "CreatePlaylist"); queue.close(); return true; case R.id.menu_clear_queue: MusicUtils.clearQueue(); return true; default: break; } return false; } }