把apk放到/system/app文件夹下,作为系统项目,就可以保证项目有root的权http://限。
root权限的app可以申请很多一般用户无法申请的权限。
可以查看哪些权限是需要root才能申请的。
package com.example.netaccesstest;
import java.io.DataOutputStream;
import java.io.IOException;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button open = (Button) findViewById(R.id.open);
Button close = (Button) findViewById(R.id.close);
open.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
CopyAppToSystem();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
close.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
RunAsRooter();
}
});
}
private void RunAsRooter()
{
try {
Process process = Runtime.getRuntime().exec("su");
process.waitFor();
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private void CopyAppToSystem() throws IOException
{
Process process = Runtime.getRuntime().exec("su");
DataOutputStream out = new DataOutputStream(process.getOutputStream());
out.writeBytes("mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system\n");
out.writeBytes("cat /sdcard/myApp.adk > /system/app/myApp.adk\n");
out.writeBytes("mount -o remount,ro -t yaffs2 /dev/block/mtdblock3 /system\n");
out.writeBytes("exit\n");
out.flush();
try {
process.waitFor();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}