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Copyright (c) 2015 David Schulte Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Soft...
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/* * Copyright (c) 2015 David Schulte// w w w . ja v a 2 s. c o m * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package de.arcus.playmusicexporter2.fragments; import android.app.Activity; import android.content.SharedPreferences; import android.content.res.Configuration; import android.graphics.PorterDuff; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.Fragment; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBar; import android.support.v7.app.ActionBarActivity; import android.support.v7.app.ActionBarDrawerToggle; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import de.arcus.playmusicexporter2.R; /** * Fragment used for managing interactions for and presentation of a navigation drawer. * See the <a href="https://developer.android.com/design/patterns/navigation-drawer.html#Interaction"> * design guidelines</a> for a complete explanation of the behaviors implemented here. */ public class NavigationDrawerFragment extends Fragment { /** * Remember the position of the selected item. */ private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position"; /** * Per the design guidelines, you should show the drawer on launch until the user manually * expands it. This shared preference tracks this. */ private static final String PREF_USER_LEARNED_DRAWER = "navigation_drawer_learned"; /** * A pointer to the current callbacks instance (the Activity). */ private NavigationDrawerCallbacks mCallbacks; /** * Helper component that ties the action bar to the navigation drawer. */ private ActionBarDrawerToggle mDrawerToggle; private DrawerLayout mDrawerLayout; private View mFragmentContainerView; private int mCurrentSelectedPosition = 0; private boolean mFromSavedInstanceState; private boolean mUserLearnedDrawer; private Button mButtonTypeAlbum; private Button mButtonTypeArtist; private Button mButtonTypePlaylist; private Button mButtonTypeRated; private Button mButtonSettings; public enum ViewType { Album, Artist, Playlist, Rated } private ViewType mViewType; /** * @return Gets the current view type */ public ViewType getViewType() { return mViewType; } /** * @param viewType Sets the current view type */ private void setViewType(ViewType viewType) { // Change the ui setButtonActive(mButtonTypeAlbum, viewType == ViewType.Album); setButtonActive(mButtonTypeArtist, viewType == ViewType.Artist); setButtonActive(mButtonTypePlaylist, viewType == ViewType.Playlist); setButtonActive(mButtonTypeRated, viewType == ViewType.Rated); if (viewType != mViewType) if (mCallbacks != null) mCallbacks.onViewTypeChanged(viewType); mViewType = viewType; // Close the drawer if (mDrawerLayout != null) mDrawerLayout.closeDrawers(); } public NavigationDrawerFragment() { } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Read in the flag indicating whether or not the user has demonstrated awareness of the // drawer. See PREF_USER_LEARNED_DRAWER for details. SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getActivity()); mUserLearnedDrawer = sp.getBoolean(PREF_USER_LEARNED_DRAWER, false); if (savedInstanceState != null) { mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION); mFromSavedInstanceState = true; } } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); // Indicate that this fragment would like to influence the set of actions in the action bar. setHasOptionsMenu(true); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate( R.layout.fragment_navigation_drawer, container, false); // Gets all buttons mButtonTypeAlbum = (Button)view.findViewById(R.id.button_type_album); mButtonTypeArtist = (Button)view.findViewById(R.id.button_type_artist); mButtonTypePlaylist = (Button)view.findViewById(R.id.button_type_playlist); mButtonTypeRated = (Button)view.findViewById(R.id.button_type_rated); mButtonSettings = (Button)view.findViewById(R.id.button_setting); // Set the default setViewType(ViewType.Album); // Click on album mButtonTypeAlbum.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { setViewType(ViewType.Album); } }); // Click on artist mButtonTypeArtist.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { setViewType(ViewType.Artist); } }); // Click on playlist mButtonTypePlaylist.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { setViewType(ViewType.Playlist); } }); // Click on rated mButtonTypeRated.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { setViewType(ViewType.Rated); } }); // Color the settings button setButtonActive(mButtonSettings, false); return view; } /** * Format the button * @param button The button * @param active Active */ public void setButtonActive(Button button, boolean active) { // Gets the button //Button button = (Button)parentView.findViewById(resID); int colorText; int colorBackground; // Button is active if (active) { // Gets the active color colorText = getResources().getColor(R.color.button_navigation_drawer_text_active); colorBackground = getResources().getColor(R.color.button_navigation_drawer_active); } else { // Gets the normal color colorText = getResources().getColor(R.color.button_navigation_drawer_text); colorBackground = getResources().getColor(R.color.button_navigation_drawer_normal); } // Sets the color button.setBackgroundColor(colorBackground); button.setTextColor(colorText); button.getCompoundDrawables()[0].setColorFilter(colorText, PorterDuff.Mode.MULTIPLY); } public boolean isDrawerOpen() { return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView); } public void setOnListViewChanged(NavigationDrawerCallbacks callback) { mCallbacks = callback; } /** * Users of this fragment must call this method to set up the navigation drawer interactions. * * @param fragmentId The android:id of this fragment in its activity's layout. * @param drawerLayout The DrawerLayout containing this fragment's UI. */ public void setUp(int fragmentId, DrawerLayout drawerLayout) { mFragmentContainerView = getActivity().findViewById(fragmentId); mDrawerLayout = drawerLayout; // set a custom shadow that overlays the main content when the drawer opens mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // set up the drawer's list view with items and click listener ActionBar actionBar = getActionBar(); actionBar.setDisplayHomeAsUpEnabled(true); actionBar.setHomeButtonEnabled(true); // ActionBarDrawerToggle ties together the the proper interactions // between the navigation drawer and the action bar app icon. mDrawerToggle = new ActionBarDrawerToggle( getActivity(), /* host Activity */ mDrawerLayout, /* DrawerLayout object */ R.string.navigation_drawer_open, /* "open drawer" description for accessibility */ R.string.navigation_drawer_close /* "close drawer" description for accessibility */ ) { @Override public void onDrawerClosed(View drawerView) { super.onDrawerClosed(drawerView); if (!isAdded()) { return; } getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu() } @Override public void onDrawerOpened(View drawerView) { super.onDrawerOpened(drawerView); if (!isAdded()) { return; } if (!mUserLearnedDrawer) { // The user manually opened the drawer; store this flag to prevent auto-showing // the navigation drawer automatically in the future. mUserLearnedDrawer = true; SharedPreferences sp = PreferenceManager .getDefaultSharedPreferences(getActivity()); sp.edit().putBoolean(PREF_USER_LEARNED_DRAWER, true).commit(); } getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu() } }; // If the user hasn't 'learned' about the drawer, open it to introduce them to the drawer, // per the navigation drawer design guidelines. if (!mUserLearnedDrawer && !mFromSavedInstanceState) { mDrawerLayout.openDrawer(mFragmentContainerView); } // Defer code dependent on restoration of previous instance state. mDrawerLayout.post(new Runnable() { @Override public void run() { mDrawerToggle.syncState(); } }); mDrawerLayout.setDrawerListener(mDrawerToggle); } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { mCallbacks = (NavigationDrawerCallbacks) activity; } catch (ClassCastException e) { throw new ClassCastException("Activity must implement NavigationDrawerCallbacks."); } } @Override public void onDetach() { super.onDetach(); mCallbacks = null; } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putInt(STATE_SELECTED_POSITION, mCurrentSelectedPosition); } @Override public void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); // Forward the new configuration the drawer toggle component. mDrawerToggle.onConfigurationChanged(newConfig); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { // If the drawer is open, show the global app actions in the action bar. See also // showGlobalContextActionBar, which controls the top-left area of the action bar. if (mDrawerLayout != null && isDrawerOpen()) { //inflater.inflate(R.menu.global, menu); showGlobalContextActionBar(); } super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } /*if (item.getItemId() == R.id.action_example) { Toast.makeText(getActivity(), "Example action.", Toast.LENGTH_SHORT).show(); return true; }*/ return super.onOptionsItemSelected(item); } /** * Per the navigation drawer design guidelines, updates the action bar to show the global app * 'context', rather than just what's in the current screen. */ private void showGlobalContextActionBar() { ActionBar actionBar = getActionBar(); actionBar.setDisplayShowTitleEnabled(true); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); actionBar.setTitle(R.string.app_name); } private ActionBar getActionBar() { return ((ActionBarActivity) getActivity()).getSupportActionBar(); } /** * Callbacks interface that all activities using this fragment must implement. */ public static interface NavigationDrawerCallbacks { /** * Called when an item in the navigation drawer is selected. */ void onViewTypeChanged(ViewType viewType); } }