如何禁用回的Andr​​oid按键 [英] How to disable back key button in Android

问题描述

我真的想要一个简单的答案，因为我总是在死胡同。如何禁用后退按钮（硬件后退按钮），并在哪里我需要写code禁用它？我只是希望我的应用程序的用户使用导航在我的应用程序。

I really want a straight forward answer as I always on the dead end. How to disable back button ( the hardware back button ) and where did I need to write the code to disable it ? I just want user of my apps to use the navigation on my apps.

推荐答案

刚：

    @Override
    public void onBackPressed() {

    } 

现在，如果你想后退按钮之前做anyUpdate：

Now if you want to do anyUpdate before backButton:

      @Override
   public void onBackPressed() {
      //your function that updates
    } 

API：

转到您的清单，看到选项卡中，minimumSDK应该有5。

Go to your manifest and see the tab, the minimumSDK there should be 5.

SDK_INT value        Build.VERSION_CODES        Human Version Name       
1                    BASE                    Android 1.0
2                  BASE_1_1                  Android 1.1
3                   CUPCAKE                  Android 1.5 Cupcake
4                    DONUT                   Android 1.6 Donut
5                   ECLAIR                   Android 2.0 Eclair
6                   ECLAIR_0_1               Android 2.0.1 Eclair                  
7                   ECLAIR_MR1               Android 2.1 Eclair
8                   FROYO                    Android 2.2 Froyo
9                  GINGERBREAD               Android 2.3 Gingerbread
10                  GINGERBREAD_MR1           Android 2.3.3 Gingerbread
11                  HONEYCOMB                 Android 3.0 Honeycomb
12                  HONEYCOMB_MR1             Android 3.1 Honeycomb
13                  HONEYCOMB_MR2             Android 3.2 Honeycomb
14                  ICE_CREAM_SANDWICH        Android 4.0 Ice Cream Sandwich
15                  ICE_CREAM_SANDWICH_MR1    Android 4.0.3 Ice Cream Sandwich
16                  JELLY_BEAN                Android 4.1 Jellybean
17                  JELLY_BEAN_MR1            Android 4.2 Jellybean
10000                CUR_DEVELOPMENT           Current Development Build

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