Hello,
I'm trying to write my first android application which executes
commands I feed to it on the comandline. I looked through the public
git repository and found android.os.exec which should meet my needs
fine, however I noticed that it isn't part of the SDK. When I try to
add the class to my project and call it via createsubprocess(), it
compiles fine but i get a force close as soon as it tries to run on
the emulator or my device. According to the ddms logs, its getting
stuck at an unsatisfied link error. Below are the three files in my
project... if anyone could help me out, it would be much appreciated
-------------------
testapp.java:
-------------------
package com.android.testapp;
import android.app.Activity;
import android.os.Bundle;
import com.android.testapp.exec;
public class testapp extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
exec.createSubprocess("ls",null,null);
}
}
-------------------
exec.java
-------------------
package com.android.testapp;
import java.io.FileDescriptor;
/**
* @hide
* Tools for executing commands. Not for public consumption.
*/
public class exec
{
/**
* @param cmd The command to execute
* @param arg0 The first argument to the command, may be null
* @param arg1 the second argument to the command, may be null
* @return the file descriptor of the started process.
*
*/
public static FileDescriptor createSubprocess(
String cmd, String arg0, String arg1) {
return createSubprocess(cmd, arg0, arg1, null);
}
/**
* @param cmd The command to execute
* @param arg0 The first argument to the command, may be null
* @param arg1 the second argument to the command, may be null
* @param processId A one-element array to which the process ID of
the
* started process will be written.
* @return the file descriptor of the started process.
*
*/
public static native FileDescriptor createSubprocess(
String cmd, String arg0, String arg1, int[] processId);
public static native void setPtyWindowSize(FileDescriptor fd,
int row, int col, int xpixel, int ypixel);
/**
* Causes the calling thread to wait for the process associated
with the
* receiver to finish executing.
*
* @return The exit value of the Process being waited on
*
*/
public static native int waitFor(int processId);
}
---------------
androidmanifest.xml
---------------
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android";
package="com.android.testapp"
android:versionCode="1"
android:versionName="1.0.0">
<application android:icon="@drawable/icon" android:label="@string/
app_name">
<activity android:name="testapp"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category
android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
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