Android 如何監聽 Home鍵與多工鍵&返回鍵

前言

本文件適用於Android原生開發。也可以轉換成Xamarin

目的

監聽功能鍵, 能讓方便在專案實作上能更靈活運用

開始前準備

開發環境: Android Studio or Eclipse

方法一 (註冊廣播)                                                            

步驟1.(建立廣播程式碼)                                                                                          

步驟2. (在Activity的OnCreate方法中註冊廣播)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

方法二 (覆寫OnKeyDown方法)

步驟1. (在OnCreate添加setFlags)

步驟2. (覆寫OnKeyDown方法)

參考資料

https://developer.android.com/index.html

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