Java tutorial
/** * Copyright (C) 2011-2017 The PILE Developers <pile-dev@googlegroups.com> * * 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.pileproject.drive.setting.app; import android.app.Dialog; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.v4.app.DialogFragment; import android.util.DisplayMetrics; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.webkit.WebView; import com.pileproject.drive.R; /** * A fragment for showing the copyright notice. This fragment will be used by {@link CopyrightNoticePreference}. */ public class CopyrightNoticeFragment extends DialogFragment { WebView mLicensesPage; @Override @NonNull public Dialog onCreateDialog(Bundle savedInstanceState) { Dialog dialog = new Dialog(getActivity()); dialog.setTitle(R.string.setting_copyrightNotice); return dialog; } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { super.onCreateView(inflater, container, savedInstanceState); View v = inflater.inflate(R.layout.fragment_webview, container, false); mLicensesPage = (WebView) v.findViewById(R.id.plain_html); // load a license file located in assets String htmlPath = "file:///android_asset/licenses.html"; mLicensesPage.loadUrl(htmlPath); return v; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); resizeDialog(); } /** * This function should be called in {@link DialogFragment#onActivityCreated(Bundle)}. * Otherwise, the dialog size will never be changed. */ private void resizeDialog() { Dialog dialog = getDialog(); DisplayMetrics metrics = getResources().getDisplayMetrics(); // resize window large enough to display list views int dialogWidth = (int) (metrics.widthPixels * 0.9); int dialogHeight = (int) (metrics.heightPixels * 0.9); WindowManager.LayoutParams lp = dialog.getWindow().getAttributes(); lp.width = dialogWidth; lp.height = dialogHeight; dialog.getWindow().setAttributes(lp); } }