Java tutorial
/* * Copyright (c) 2016 by Vinicius Fagundes. All rights reserved. * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apache License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://opensource.org/licenses/Apache-2.0/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * */ package com.viniciusfagundes.cordova.plugin.navigationbar; import android.app.Activity; import android.graphics.Color; import android.os.Build; import android.view.View; import android.view.Window; import android.view.WindowManager; import org.apache.cordova.CallbackContext; import org.apache.cordova.CordovaArgs; import org.apache.cordova.CordovaInterface; import org.apache.cordova.CordovaPlugin; import org.apache.cordova.CordovaWebView; import org.apache.cordova.LOG; import org.apache.cordova.PluginResult; import org.json.JSONException; public class NavigationBar extends CordovaPlugin { private static final String TAG = "NavigationBar"; /** * Sets the context of the Command. This can then be used to do things like * get file paths associated with the Activity. * * @param cordova The context of the main Activity. * @param webView The CordovaWebView Cordova is running in. */ @Override public void initialize(final CordovaInterface cordova, CordovaWebView webView) { LOG.v(TAG, "NavigationBar: initialization"); super.initialize(cordova, webView); this.cordova.getActivity().runOnUiThread(new Runnable() { @Override public void run() { // Clear flag FLAG_FORCE_NOT_FULLSCREEN which is set initially // by the Cordova. Window window = cordova.getActivity().getWindow(); window.clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN); // Read 'NavigationBarBackgroundColor' from config.xml, default is #000000. setNavigationBarBackgroundColor(preferences.getString("NavigationBarBackgroundColor", "#000000")); } }); } /** * Executes the request and returns PluginResult. * * @param action The action to execute. * @param args JSONArry of arguments for the plugin. * @param callbackContext The callback id used when calling back into JavaScript. * @return True if the action was valid, false otherwise. */ @Override public boolean execute(final String action, final CordovaArgs args, final CallbackContext callbackContext) throws JSONException { LOG.v(TAG, "Executing action: " + action); final Activity activity = this.cordova.getActivity(); final Window window = activity.getWindow(); if ("_ready".equals(action)) { boolean navigationBarVisible = (window.getAttributes().flags & WindowManager.LayoutParams.FLAG_FULLSCREEN) == 0; callbackContext.sendPluginResult(new PluginResult(PluginResult.Status.OK, navigationBarVisible)); return true; } if ("show".equals(action)) { this.cordova.getActivity().runOnUiThread(new Runnable() { @Override public void run() { // SYSTEM_UI_FLAG_FULLSCREEN is available since JellyBean, but we // use KitKat here to be aligned with "Fullscreen" preference if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { int uiOptions = window.getDecorView().getSystemUiVisibility(); uiOptions &= ~View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION; uiOptions &= ~View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY; window.getDecorView().setSystemUiVisibility(uiOptions); window.getDecorView().setOnFocusChangeListener(null); window.getDecorView().setOnSystemUiVisibilityChangeListener(null); } // CB-11197 We still need to update LayoutParams to force navigation bar // to be hidden when entering e.g. text fields window.clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); } }); return true; } if ("hide".equals(action)) { this.cordova.getActivity().runOnUiThread(new Runnable() { @Override public void run() { // SYSTEM_UI_FLAG_FULLSCREEN is available since JellyBean, but we // use KitKat here to be aligned with "Fullscreen" preference if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { final int uiOptions = window.getDecorView().getSystemUiVisibility() | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY; window.getDecorView().setSystemUiVisibility(uiOptions); window.getDecorView().setOnFocusChangeListener(new View.OnFocusChangeListener() { @Override public void onFocusChange(View v, boolean hasFocus) { if (hasFocus) { window.getDecorView().setSystemUiVisibility(uiOptions); } } }); window.getDecorView().setOnSystemUiVisibilityChangeListener( new View.OnSystemUiVisibilityChangeListener() { @Override public void onSystemUiVisibilityChange(int visibility) { window.getDecorView().setSystemUiVisibility(uiOptions); } }); } // CB-11197 We still need to update LayoutParams to force navigation bar // to be hidden when entering e.g. text fields //window.addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN); } }); return true; } if ("backgroundColorByHexString".equals(action)) { this.cordova.getActivity().runOnUiThread(new Runnable() { @Override public void run() { try { setNavigationBarBackgroundColor(args.getString(0)); } catch (JSONException ignore) { LOG.e(TAG, "Invalid hexString argument, use f.i. '#777777'"); } } }); return true; } return false; } private void setNavigationBarBackgroundColor(final String colorPref) { if (Build.VERSION.SDK_INT >= 21) { if (colorPref != null && !colorPref.isEmpty()) { final Window window = cordova.getActivity().getWindow(); // Method and constants not available on all SDKs but we want to be able to compile this code with any SDK window.clearFlags(0x04000000); // SDK 19: WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); window.addFlags(0x80000000); // SDK 21: WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS); try { // Using reflection makes sure any 5.0+ device will work without having to compile with SDK level 21 window.getClass().getDeclaredMethod("setNavigationBarColor", int.class).invoke(window, Color.parseColor(colorPref)); } catch (IllegalArgumentException ignore) { LOG.e(TAG, "Invalid hexString argument, use f.i. '#999999'"); } catch (Exception ignore) { // this should not happen, only in case Android removes this method in a version > 21 LOG.w(TAG, "Method window.setNavigationBarColor not found for SDK level " + Build.VERSION.SDK_INT); } } } } }