Java tutorial
/* * DD-WRT Companion is a mobile app that lets you connect to, * monitor and manage your DD-WRT routers on the go. * * Copyright (C) 2014 Armel Soro * * 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, see <http://www.gnu.org/licenses/>. * * Contact Info: Armel Soro <apps+ddwrt@rm3l.org> */ package org.rm3l.ddwrt.tiles.admin.nvram; import android.app.AlertDialog; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.graphics.Typeface; import android.os.AsyncTask; import android.os.Bundle; import android.support.v4.app.FragmentActivity; import android.text.Editable; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.InputMethodManager; import android.widget.EditText; import android.widget.TextView; import com.actionbarsherlock.app.SherlockDialogFragment; import com.cocosw.undobar.UndoBarController; import org.apache.commons.lang3.StringUtils; import org.jetbrains.annotations.NotNull; import org.rm3l.ddwrt.R; import de.keyboardsurfer.android.widget.crouton.Crouton; import static de.keyboardsurfer.android.widget.crouton.Style.ALERT; public class EditNVRAMKeyValueDialogFragment extends SherlockDialogFragment { private NVRAMDataRecyclerViewAdapter nvramDataRecyclerViewAdapter; public static final String POSITION = "position"; public static final String KEY = "key"; public static final String VALUE = "value"; private int mPosition; private CharSequence mKey; private CharSequence mValue; @NotNull public static EditNVRAMKeyValueDialogFragment newInstance( NVRAMDataRecyclerViewAdapter nvramDataRecyclerViewAdapter, int position, CharSequence key, CharSequence value) { final EditNVRAMKeyValueDialogFragment fragment = new EditNVRAMKeyValueDialogFragment(); fragment.nvramDataRecyclerViewAdapter = nvramDataRecyclerViewAdapter; final Bundle args = new Bundle(); args.putInt(POSITION, position); args.putCharSequence(KEY, key); args.putCharSequence(VALUE, value); fragment.setArguments(args); return fragment; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Bundle arguments = getArguments(); this.mKey = arguments.getCharSequence(KEY); this.mValue = arguments.getCharSequence(VALUE); this.mPosition = arguments.getInt(POSITION); } @NotNull @Override public Dialog onCreateDialog(Bundle savedInstanceState) { final FragmentActivity activity = getActivity(); @NotNull AlertDialog.Builder builder = new AlertDialog.Builder(activity); // Get the layout inflater @NotNull final LayoutInflater inflater = activity.getLayoutInflater(); final View view = inflater.inflate(R.layout.tile_admin_nvram_edit, null); builder.setTitle(R.string.edit_nvram) .setMessage("NVRAM is the permanent settings storage. This includes: " + "i) settings that you normally change using Web Interface, and " + "ii) settings for user Startup Scripts. \n" + "Variables edited here will be persisted in NVRAM right away. \n\n" + "* SO DO NOT EDIT UNLESS YOU REALLY KNOW WHAT YOU ARE DOING! *") .setIcon(android.R.drawable.stat_sys_warning).setView(view) // Add action buttons .setPositiveButton(R.string.update, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int id) { //Do nothing here because we override this button later to change the close behaviour. //However, we still need this because on older versions of Android unless we //pass a handler the button doesn't get instantiated } }).setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { getDialog().cancel(); } }); return builder.create(); } @Override public void onStart() { super.onStart(); //super.onStart() is where dialog.show() is actually called on the underlying dialog, so we have to do it after this point final AlertDialog d = (AlertDialog) getDialog(); if (d != null) { ((TextView) d.findViewById(R.id.tile_admin_nvram_edit_key)).setText(this.mKey); final EditText valueEditText = (EditText) d.findViewById(R.id.tile_admin_nvram_edit_value); valueEditText.setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { ((TextView) d.findViewById(R.id.tile_admin_nvram_edit_value_textview)).setTypeface(null, hasFocus ? Typeface.BOLD_ITALIC : Typeface.NORMAL); } }); valueEditText.setText(this.mValue, TextView.BufferType.EDITABLE); d.getButton(Dialog.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { //Validate data final EditText editText = (EditText) d.findViewById(R.id.tile_admin_nvram_edit_value); final Editable newValue = editText.getText(); if (mValue != null && StringUtils.equals(newValue.toString(), mValue.toString())) { //Crouton Crouton.makeText(getActivity(), "No change", ALERT, (ViewGroup) (d.findViewById(R.id.tile_admin_nvram_edit_notification_viewgroup))) .show(); editText.requestFocus(); //Open Keyboard final InputMethodManager imm = (InputMethodManager) getActivity() .getSystemService(Context.INPUT_METHOD_SERVICE); if (imm != null) { // only will trigger it if no physical keyboard is open imm.showSoftInput(editText, 0); } return; } final CharSequence variableKey = ((TextView) d.findViewById(R.id.tile_admin_nvram_edit_key)) .getText(); final Bundle token = new Bundle(); token.putInt(POSITION, mPosition); token.putCharSequence(VALUE, newValue); token.putCharSequence(KEY, variableKey); //nvram set data changed new UndoBarController.UndoBar(getSherlockActivity()) .message(String.format("Variable '%s' will be updated", variableKey)) .listener(nvramDataRecyclerViewAdapter).token(token).show(); d.cancel(); } }); } } }