Java tutorial
package com.dm.material.dashboard.candybar.fragments.dialog; import android.app.Dialog; import android.content.DialogInterface; import android.content.pm.ActivityInfo; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.DialogFragment; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentTransaction; import android.support.v7.widget.AppCompatRadioButton; import android.view.View; import android.widget.LinearLayout; import com.afollestad.materialdialogs.MaterialDialog; import com.dm.material.dashboard.candybar.R; import com.dm.material.dashboard.candybar.preferences.Preferences; /* * CandyBar - Material Dashboard * * Copyright (c) 2014-2016 Dani Mahardhika * * 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. */ public class WallpaperSettingsFragment extends DialogFragment implements View.OnClickListener { private AppCompatRadioButton mEnableScrollRadio; private AppCompatRadioButton mDisableScrollRadio; private LinearLayout mEnableScroll; private LinearLayout mDisableScroll; private static final String TAG = "candybar.dialog.wallpaper.settings"; private static WallpaperSettingsFragment newInstance() { return new WallpaperSettingsFragment(); } public static void showWallpaperSettings(FragmentManager fm) { FragmentTransaction ft = fm.beginTransaction(); Fragment prev = fm.findFragmentByTag(TAG); if (prev != null) { ft.remove(prev); } try { DialogFragment dialog = WallpaperSettingsFragment.newInstance(); dialog.show(ft, TAG); } catch (IllegalArgumentException | IllegalStateException ignored) { } } @NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { MaterialDialog.Builder builder = new MaterialDialog.Builder(getActivity()); builder.title(R.string.menu_wallpaper_settings); builder.customView(R.layout.fragment_wallpaper_settings, false); builder.positiveText(R.string.close); MaterialDialog dialog = builder.build(); dialog.show(); mEnableScrollRadio = (AppCompatRadioButton) dialog.findViewById(R.id.enable_scroll_radio); mDisableScrollRadio = (AppCompatRadioButton) dialog.findViewById(R.id.disable_scroll_radio); mEnableScroll = (LinearLayout) dialog.findViewById(R.id.enable_scroll); mDisableScroll = (LinearLayout) dialog.findViewById(R.id.disable_scroll); return dialog; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); mEnableScroll.setOnClickListener(this); mDisableScroll.setOnClickListener(this); toggleRadio(); } @Override public void onDismiss(DialogInterface dialog) { super.onDismiss(dialog); if (Preferences.getPreferences(getActivity()).isScrollWallpaper()) { getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED); } else { getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } } @Override public void onClick(View view) { int id = view.getId(); Preferences.getPreferences(getActivity()).setScrollWallpaper(id == R.id.enable_scroll); toggleRadio(); } private void toggleRadio() { boolean scroll = Preferences.getPreferences(getActivity()).isScrollWallpaper(); mEnableScrollRadio.setChecked(scroll); mDisableScrollRadio.setChecked(!scroll); } }