Java tutorial
/* * Copyright (C) 2017 XJSHQ@github.com * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 3 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301, USA. */ package com.artemchep.horario.ui.activities; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.annotation.ColorInt; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import com.afollestad.materialdialogs.color.ColorChooserDialog; import com.artemchep.horario.Config; import com.artemchep.horario.R; import com.artemchep.horario._new.activities.MultiPaneActivity; import com.artemchep.horario.interfaces.FragmentCommon; import com.artemchep.horario.ui.FormatHelper; import java.util.LinkedList; import java.util.List; import timber.log.Timber; /** * @author Artem Chepurnoy */ public class ChildActivity extends MultiPaneActivity implements ColorChooserDialog.ColorCallback { private static final String TAG_FRAGMENT = "fragment::master"; public static final String EXTRA_FRAGMENT_NAME = "extra::fragment_name"; public static final String EXTRA_FRAGMENT_ARGS = "extra::fragment_arguments"; @NonNull public static Intent makeFor(@NonNull Context context, @NonNull Class<? extends Fragment> fragment, @Nullable Bundle args) { Intent intent = new Intent(context, ChildActivity.class); intent.putExtra(ChildActivity.EXTRA_FRAGMENT_NAME, fragment.getName()); intent.putExtra(ChildActivity.EXTRA_FRAGMENT_ARGS, args); return intent; } private List<FormatHelper> mFormatHelpers = new LinkedList<>(); private Fragment mFragment; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setupTheme(); setupContent(); if (savedInstanceState == null) { Intent intent = getIntent(); Bundle args = intent.getBundleExtra(EXTRA_FRAGMENT_ARGS); String clazzName = intent.getStringExtra(EXTRA_FRAGMENT_NAME); try { mFragment = (Fragment) Class.forName(clazzName).newInstance(); } catch (Exception e) { throw new RuntimeException(e); } mFragment.setArguments(args); getSupportFragmentManager().beginTransaction().add(R.id.content, mFragment, TAG_FRAGMENT).commit(); } else { mFragment = getSupportFragmentManager().getFragment(savedInstanceState, TAG_FRAGMENT); } } protected void setupTheme() { int theme = Config.INSTANCE.get(Config.KEY_UI_THEME); switch (theme) { case Config.THEME_LIGHT: setTheme(R.style.AppThemeLight_NoActionBar); break; case Config.THEME_DARK: setTheme(R.style.AppTheme_NoActionBar); break; case Config.THEME_BLACK: setTheme(R.style.AppThemeBlack_NoActionBar); break; } } protected void setupContent() { setContentView(R.layout.activity_child); } @Override public void onBackPressed() { if (mFragment instanceof FragmentCommon) { FragmentCommon common = (FragmentCommon) mFragment; if (common.onBackPressed()) return; } super.onBackPressed(); } @Override public void onColorSelection(@NonNull ColorChooserDialog dialog, @ColorInt int selectedColor) { String tag = dialog.tag(); if (tag == null) { Timber.wtf("Selected color, but dialog has no tag?"); return; } for (FormatHelper helper : mFormatHelpers) { if (tag.startsWith(helper.getTag())) { String action = tag.substring(helper.getTag().length()); helper.onColorSelection(action, selectedColor); break; } } } @Override public void onColorChooserDismissed(@NonNull ColorChooserDialog dialog) { } public void addFormatHelper(@NonNull FormatHelper formatHelper) { mFormatHelpers.add(formatHelper); } public void removeFormatHelper(@NonNull FormatHelper formatHelper) { mFormatHelpers.remove(formatHelper); } }