安卓code键移动文件到系统？ [英] android code to move file into system?

问题描述

在这里我是一个星系S6的用户，我发现开关近期的应用按钮（一个在home键的左边）而在玩游戏一样虚荣，因为我misclicked它经常很烦人。之后做一些研究，我发现，这是可能的注释掉在系统的/ usr / keylayout generic.kl的关键254，然后我出来与创建它注释掉键254新generic.kl的想法，那么与我的应用程序按钮，点击它会在文件移动与评论钥匙系统的/ usr / keylayout，以取代旧的方式，反之亦然，我会恢复按钮那里将原来generic.kl当我恢复婉近期应用程序切换到重新开始工作。所以在这里我的问题是，这将是code移动文件到系统并更换了吗？我有一些基本的Andr​​oid编程知识，我的手机是扎根。

Im a galaxy s6 user here, I found out that the switch recent app button (the one on the left of the home button) quite annoying while playing game like vainglory because I misclicked it quite often. After doing some research I found out that it is possible to comment out the key 254 of generic.kl under system/usr/keylayout, then i come out with an idea of creating a new generic.kl which commented out the key 254, then with a click of button on my app it will move the file with the commented key to system/usr/keylayout to replace the old way, vice versa, I will make a restore button there to restore it will the original generic.kl when I wan the recent app switch to start working again. So my question here is what would be the code to move a file to system and replace it? I do have some basic android programming knowledge and my phone is rooted.

先谢谢了。

推荐答案

使用下面的code复制到系统中。需要root访问权限。

Use the code below to copy to system. Requires root access.

void copyToSystem() {

    try {
        Process proc = Runtime.getRuntime().exec(
            new String[]{
                "su", "-c", 
                "mount -o rw,remount /system ;"
              + " cp -f /storage/sdcard0/MyFolder/MyKeyLayout.kl /system/usr/keylayout/ ;"
              + " mount -o ro,remount /system"});
        proc.waitFor();
    } catch (Exception ex) {
        ex.printStackTrace();
    }
}

您需要导入 java.lang.Process中，而不是 android.os.Process

注意： CP -f 确保文件被替换，如果现有

Note: cp -f ensures that the file is replaced if already existing.

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