Java tutorial
/* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you 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.remobile.dialogs; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.annotation.SuppressLint; import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.app.ProgressDialog; import android.content.DialogInterface; import android.media.Ringtone; import android.media.RingtoneManager; import android.net.Uri; import android.widget.EditText; import android.widget.TextView; import com.facebook.common.logging.FLog; import com.remobile.cordova.*; import com.facebook.react.bridge.*; /** * This class provides access to notifications on the device. * <p> * Be aware that this implementation gets called on * navigator.notification.{alert|confirm|prompt}, and that there is a separate * implementation in org.apache.cordova.CordovaChromeClient that gets * called on a simple window.{alert|confirm|prompt}. */ public class Notification extends CordovaPlugin { public int confirmResult = -1; public ProgressDialog spinnerDialog = null; public ProgressDialog progressDialog = null; public static String FLOG_TAG = "RCTDialogs"; public Notification(ReactApplicationContext reactContext, Activity activity) { super(reactContext); this.cordova.setActivity(activity); } @Override public String getName() { return "Dialogs"; } @ReactMethod public void beep(ReadableArray args) { String action = "beep"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(null, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } @ReactMethod public void alert(ReadableArray args, Callback success) { String action = "alert"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(success, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } @ReactMethod public void confirm(ReadableArray args, Callback success) { String action = "confirm"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(success, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } @ReactMethod public void prompt(ReadableArray args, Callback success) { String action = "prompt"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(success, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } @ReactMethod public void activityStart(ReadableArray args) { String action = "activityStart"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(null, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } @ReactMethod public void activityStop(ReadableArray args) { String action = "activityStop"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(null, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } @ReactMethod public void progressStart(ReadableArray args) { String action = "progressStart"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(null, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } @ReactMethod public void progressValue(ReadableArray args) { String action = "progressValue"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(null, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } @ReactMethod public void progressStop(ReadableArray args) { String action = "progressStop"; try { this.execute(action, JsonConvert.reactToJSON(args), new CallbackContext(null, null)); } catch (Exception ex) { FLog.e(FLOG_TAG, "Unexpected error:" + ex.getMessage()); } } /** * Executes the request and returns PluginResult. * * @param action The action to execute. * @param args JSONArray of arguments for the plugin. * @param callbackContext The callback context used when calling back into JavaScript. * @return True when the action was valid, false otherwise. */ public boolean execute(String action, JSONArray args, CallbackContext callbackContext) throws JSONException { /* * Don't run any of these if the current activity is finishing * in order to avoid android.view.WindowManager$BadTokenException * crashing the app. Just return true here since false should only * be returned in the event of an invalid action. */ if (this.cordova.getActivity().isFinishing()) return true; if (action.equals("beep")) { this.beep(args.getLong(0)); } else if (action.equals("alert")) { this.alert(args.getString(0), args.getString(1), args.getString(2), callbackContext); return true; } else if (action.equals("confirm")) { this.confirm(args.getString(0), args.getString(1), args.getJSONArray(2), callbackContext); return true; } else if (action.equals("prompt")) { this.prompt(args.getString(0), args.getString(1), args.getJSONArray(2), args.getString(3), callbackContext); return true; } else if (action.equals("activityStart")) { this.activityStart(args.getString(0), args.getString(1)); } else if (action.equals("activityStop")) { this.activityStop(); } else if (action.equals("progressStart")) { this.progressStart(args.getString(0), args.getString(1)); } else if (action.equals("progressValue")) { this.progressValue(args.getInt(0)); } else if (action.equals("progressStop")) { this.progressStop(); } else { return false; } // Only alert and confirm are async. callbackContext.success(); return true; } //-------------------------------------------------------------------------- // LOCAL METHODS //-------------------------------------------------------------------------- /** * Beep plays the default notification ringtone. * * @param count Number of times to play notification */ public void beep(final long count) { final Activity activity = this.cordova.getActivity(); this.cordova.getThreadPool().execute(new Runnable() { public void run() { Uri ringtone = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); Ringtone notification = RingtoneManager.getRingtone(activity.getBaseContext(), ringtone); // If phone is not set to silent mode if (notification != null) { for (long i = 0; i < count; ++i) { notification.play(); long timeout = 5000; while (notification.isPlaying() && (timeout > 0)) { timeout = timeout - 100; try { Thread.sleep(100); } catch (InterruptedException e) { } } } } } }); } /** * Builds and shows a native Android alert with given Strings * * @param message The message the alert should display * @param title The title of the alert * @param buttonLabel The label of the button * @param callbackContext The callback context */ public synchronized void alert(final String message, final String title, final String buttonLabel, final CallbackContext callbackContext) { Runnable runnable = new Runnable() { public void run() { AlertDialog.Builder dlg = createDialog(); // new AlertDialog.Builder(this.cordova.getActivity(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT); dlg.setMessage(message); dlg.setTitle(title); dlg.setCancelable(false); dlg.setPositiveButton(buttonLabel, new AlertDialog.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, 0)); } }); dlg.setOnCancelListener(new AlertDialog.OnCancelListener() { public void onCancel(DialogInterface dialog) { dialog.dismiss(); callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, 0)); } }); changeTextDirection(dlg); } ; }; this.cordova.getActivity().runOnUiThread(runnable); } /** * Builds and shows a native Android confirm dialog with given title, message, buttons. * This dialog only shows up to 3 buttons. Any labels after that will be ignored. * The index of the button pressed will be returned to the JavaScript callback identified by callbackId. * * @param message The message the dialog should display * @param title The title of the dialog * @param buttonLabels A comma separated list of button labels (Up to 3 buttons) * @param callbackContext The callback context. */ public synchronized void confirm(final String message, final String title, final JSONArray buttonLabels, final CallbackContext callbackContext) { Runnable runnable = new Runnable() { public void run() { AlertDialog.Builder dlg = createDialog(); // new AlertDialog.Builder(this.cordova.getActivity(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT); dlg.setMessage(message); dlg.setTitle(title); dlg.setCancelable(false); // First button if (buttonLabels.length() > 0) { try { dlg.setNegativeButton(buttonLabels.getString(0), new AlertDialog.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, 1)); } }); } catch (JSONException e) { } } // Second button if (buttonLabels.length() > 1) { try { dlg.setNeutralButton(buttonLabels.getString(1), new AlertDialog.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, 2)); } }); } catch (JSONException e) { } } // Third button if (buttonLabels.length() > 2) { try { dlg.setPositiveButton(buttonLabels.getString(2), new AlertDialog.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, 3)); } }); } catch (JSONException e) { } } dlg.setOnCancelListener(new AlertDialog.OnCancelListener() { public void onCancel(DialogInterface dialog) { dialog.dismiss(); callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, 0)); } }); changeTextDirection(dlg); } ; }; this.cordova.getActivity().runOnUiThread(runnable); } /** * Builds and shows a native Android prompt dialog with given title, message, buttons. * This dialog only shows up to 3 buttons. Any labels after that will be ignored. * The following results are returned to the JavaScript callback identified by callbackId: * buttonIndex Index number of the button selected * input1 The text entered in the prompt dialog box * * @param message The message the dialog should display * @param title The title of the dialog * @param buttonLabels A comma separated list of button labels (Up to 3 buttons) * @param callbackContext The callback context. */ public synchronized void prompt(final String message, final String title, final JSONArray buttonLabels, final String defaultText, final CallbackContext callbackContext) { final Activity activity = this.cordova.getActivity(); Runnable runnable = new Runnable() { public void run() { final EditText promptInput = new EditText(activity); promptInput.setHint(defaultText); AlertDialog.Builder dlg = createDialog(); // new AlertDialog.Builder(this.cordova.getActivity(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT); dlg.setMessage(message); dlg.setTitle(title); dlg.setCancelable(false); dlg.setView(promptInput); final JSONObject result = new JSONObject(); // First button if (buttonLabels.length() > 0) { try { dlg.setNegativeButton(buttonLabels.getString(0), new AlertDialog.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); try { result.put("buttonIndex", 1); result.put("input1", promptInput.getText().toString().trim().length() == 0 ? defaultText : promptInput.getText()); } catch (JSONException e) { e.printStackTrace(); } callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, result)); } }); } catch (JSONException e) { } } // Second button if (buttonLabels.length() > 1) { try { dlg.setNeutralButton(buttonLabels.getString(1), new AlertDialog.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); try { result.put("buttonIndex", 2); result.put("input1", promptInput.getText().toString().trim().length() == 0 ? defaultText : promptInput.getText()); } catch (JSONException e) { e.printStackTrace(); } callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, result)); } }); } catch (JSONException e) { } } // Third button if (buttonLabels.length() > 2) { try { dlg.setPositiveButton(buttonLabels.getString(2), new AlertDialog.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); try { result.put("buttonIndex", 3); result.put("input1", promptInput.getText().toString().trim().length() == 0 ? defaultText : promptInput.getText()); } catch (JSONException e) { e.printStackTrace(); } callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, result)); } }); } catch (JSONException e) { } } dlg.setOnCancelListener(new AlertDialog.OnCancelListener() { public void onCancel(DialogInterface dialog) { dialog.dismiss(); try { result.put("buttonIndex", 0); result.put("input1", promptInput.getText().toString().trim().length() == 0 ? defaultText : promptInput.getText()); } catch (JSONException e) { e.printStackTrace(); } callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, result)); } }); changeTextDirection(dlg); } ; }; this.cordova.getActivity().runOnUiThread(runnable); } /** * Show the spinner. * * @param title Title of the dialog * @param message The message of the dialog */ public synchronized void activityStart(final String title, final String message) { if (this.spinnerDialog != null) { this.spinnerDialog.dismiss(); this.spinnerDialog = null; } final Notification notification = this; Runnable runnable = new Runnable() { public void run() { notification.spinnerDialog = createProgressDialog(); // new ProgressDialog(this.cordova.getActivity(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT); notification.spinnerDialog.setTitle(title); notification.spinnerDialog.setMessage(message); notification.spinnerDialog.setCancelable(false); notification.spinnerDialog.setIndeterminate(true); notification.spinnerDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { public void onCancel(DialogInterface dialog) { notification.spinnerDialog = null; } }); notification.spinnerDialog.show(); } }; this.cordova.getActivity().runOnUiThread(runnable); } /** * Stop spinner. */ public synchronized void activityStop() { if (this.spinnerDialog != null) { this.spinnerDialog.dismiss(); this.spinnerDialog = null; } } /** * Show the progress dialog. * * @param title Title of the dialog * @param message The message of the dialog */ public synchronized void progressStart(final String title, final String message) { if (this.progressDialog != null) { this.progressDialog.dismiss(); this.progressDialog = null; } final Notification notification = this; Runnable runnable = new Runnable() { public void run() { notification.progressDialog = createProgressDialog(); // new ProgressDialog(this.cordova.getActivity(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT); notification.progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); notification.progressDialog.setTitle(title); notification.progressDialog.setMessage(message); notification.progressDialog.setCancelable(false); notification.progressDialog.setMax(100); notification.progressDialog.setProgress(0); notification.progressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() { public void onCancel(DialogInterface dialog) { notification.progressDialog = null; } }); notification.progressDialog.show(); } }; this.cordova.getActivity().runOnUiThread(runnable); } /** * Set value of progress bar. * * @param value 0-100 */ public synchronized void progressValue(int value) { if (this.progressDialog != null) { this.progressDialog.setProgress(value); } } /** * Stop progress dialog. */ public synchronized void progressStop() { if (this.progressDialog != null) { this.progressDialog.dismiss(); this.progressDialog = null; } } @SuppressLint("NewApi") private AlertDialog.Builder createDialog() { int currentapiVersion = android.os.Build.VERSION.SDK_INT; if (currentapiVersion >= android.os.Build.VERSION_CODES.HONEYCOMB) { return new AlertDialog.Builder(this.cordova.getActivity(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT); } else { return new AlertDialog.Builder(this.cordova.getActivity()); } } @SuppressLint("InlinedApi") private ProgressDialog createProgressDialog() { int currentapiVersion = android.os.Build.VERSION.SDK_INT; if (currentapiVersion >= android.os.Build.VERSION_CODES.ICE_CREAM_SANDWICH) { return new ProgressDialog(this.cordova.getActivity(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT); } else { return new ProgressDialog(this.cordova.getActivity()); } } @SuppressLint("NewApi") private void changeTextDirection(Builder dlg) { int currentapiVersion = android.os.Build.VERSION.SDK_INT; dlg.create(); AlertDialog dialog = dlg.show(); if (currentapiVersion >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) { TextView messageview = (TextView) dialog.findViewById(android.R.id.message); messageview.setTextDirection(android.view.View.TEXT_DIRECTION_LOCALE); } } }