Java tutorial
/** * Copyright 2016 kubotaku1119 <kubotaku1119@gmail.com> * <p/> * 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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.kubotaku.android.sample.sensordataviewer.fragments; import android.app.Activity; import android.app.Dialog; import android.content.DialogInterface; 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.widget.Button; import android.widget.EditText; import com.kubotaku.android.sample.sensordataviewer.AppPreferences; import com.kubotaku.android.sample.sensordataviewer.R; /** * Setting Dialog of API token. */ public class ApiTokenSettingDialogFragment extends DialogFragment { private OnDialogFragmentDismissListener onDialogDismissListener; private String apiToken; private EditText editApiToken; /** * ??Fragment??? * * @return */ public static ApiTokenSettingDialogFragment newInstance() { ApiTokenSettingDialogFragment fragment = new ApiTokenSettingDialogFragment(); return fragment; } public ApiTokenSettingDialogFragment() { // Required empty public constructor } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); loadApiToken(); } @Override public void onAttach(Activity activity) { super.onAttach(activity); if (activity instanceof OnDialogFragmentDismissListener) { this.onDialogDismissListener = (OnDialogFragmentDismissListener) activity; } } @Override public void onDetach() { super.onDetach(); this.onDialogDismissListener = null; } @NonNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { Dialog dialog = super.onCreateDialog(savedInstanceState); return dialog; } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); final Dialog dialog = getDialog(); DisplayMetrics metrics = getResources().getDisplayMetrics(); int dialogWidth = (int) (metrics.widthPixels * 0.9); WindowManager.LayoutParams lp = dialog.getWindow().getAttributes(); lp.width = dialogWidth; dialog.getWindow().setAttributes(lp); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment return inflater.inflate(R.layout.fragment_apitoken_setting_dialog, container, false); } @Override public void onStart() { super.onStart(); setupViews(); } @Override public void onDismiss(DialogInterface dialog) { super.onDismiss(dialog); if (this.onDialogDismissListener != null) { this.onDialogDismissListener.onDismissDialog(true); } } private void setupViews() { View view = getView(); editApiToken = (EditText) view.findViewById(R.id.settings_edit_api_token); editApiToken.setText(this.apiToken); Button btnOk = (Button) view.findViewById(R.id.settings_button_ok); btnOk.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { saveApiToken(); dismiss(); } }); Button btnCancel = (Button) view.findViewById(R.id.settings_button_cancel); btnCancel.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dismiss(); } }); } private void loadApiToken() { this.apiToken = AppPreferences.getApiToken(getContext()); } private void saveApiToken() { String apiToken = this.editApiToken.getText().toString(); AppPreferences.saveApiToken(getContext(), apiToken); } }