android apk 怎么执行adb shell命令

如题所述

行adb shell命令:
/** * 执行一个shell命令，并返回字符串值
*
* @param cmd
* 命令名称&参数组成的数组（例如：{"/system/bin/cat", "/proc/version"}）
* @param workdirectory
* 命令执行路径（例如："system/bin/"）
* @return 执行结果组成的字符串
* @throws IOException
*/
public static synchronized String run(String[] cmd, String workdirectory)
throws IOException {
StringBuffer result = new StringBuffer();
try {
// 创建<a href="https://www.baidu.com/s?wd=%E6%93%8D%E4%BD%9C%E7%B3%BB%E7%BB%9F&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y3rynzuWnsmH6zPARYPW0s0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnW0kPWDLPjmzP1nsPWTvPW6d" target="_blank" class="baidu-highlight">操作系统</a>进程（也可以由Runtime.exec()启动）
// Runtime runtime = Runtime.getRuntime();
// Process proc = runtime.exec(cmd);
// InputStream inputstream = proc.getInputStream();
ProcessBuilder builder = new ProcessBuilder(cmd);
InputStream in = null;
// 设置一个路径（<a href="https://www.baidu.com/s?wd=%E7%BB%9D%E5%AF%B9%E8%B7%AF%E5%BE%84&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1Y3rynzuWnsmH6zPARYPW0s0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3EnW0kPWDLPjmzP1nsPWTvPW6d" target="_blank" class="baidu-highlight">绝对路径</a>了就不一定需要）
if (workdirectory != null) {
// 设置工作目录（同上）
builder.directory(new File(workdirectory));
// 合并标准错误和标准输出
builder.redirectErrorStream(true);
// 启动一个新进程
Process process = builder.start();
// 读取进程标准输出流
in = process.getInputStream();
byte[] re = new byte[1024];
while (in.read(re) != -1) {
result = result.append(new String(re));
}
}
// 关闭输入流
if (in != null) {
in.close();
}
} catch (Exception ex) {
ex.printStackTrace();
}
return result.toString();
}
android系统底层采用的是linux，所以adb这样的linux指令是可以在java代码中调用的，可以使用ProcessBuilder 这个方法来执行对应的指令。还可以通过如下方式执行：
Process p = Runtime.getRuntime().exec("ls");
String data = null;
BufferedReader ie = new BufferedReader(new InputStreamReader(p.getErrorStream()));
BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
String error = null;
while ((error = ie.readLine()) != null
&& !error.equals("null")) {
data += error + "\n";
}
String line = null;
while ((line = in.readLine()) != null
&& !line.equals("null")) {
data += line + "\n";
}

Log.v("ls", data);

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