Manual For Mobile Security

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Tutorial

Permission

objective

We will need to request some permissions for our projects, but how to use these permissions could be a big issue in few cases. This lab gives a general idea of SMS permission and internet permission. The test result is shown if the project moves the permission out

Software Requirement
 Eclipse IDE

 Java JDK, JRE

 Android SDK

Tutorial

Create a new android project

Project Name: Permission

Target Name: Android 2.2.2

Package Name: Android. Permission
Copy and paste the following code to Permission->res->layout->main.xml

    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

Create new xml file in permission->res->layout, name it internet.xml then copy and paste following code

xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">

Create a new xml file in Permission->res->layout, name it sms.xml, then copy and paste the following code

    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:weightSum="1">














Go to Permission->src->Andorid.Permission, then create two file “IntentActivity.java” and “SMSActivity.java” .Copy and paste the following code in “PermissionAcitivity.java”

package Android.Permission;

import Android.Permission.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class PermissionActivity extends Activity {

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
    final Context context = this;

super.onCreate(savedInstanceState);

        setContentView(R.layout.main);
        final Button interb=(Button)findViewById(R.id.interb);
        final Button smsb=(Button)findViewById(R.id.smsb);

        //Internet Button listener
        interb.setOnClickListener(new OnClickListener()
        {
  public void onClick(View v)
          {
            //Start Internet Activity
      Intent intent = new Intent(context, InternetActivity.class);
      startActivity(intent);
          }
  });
        //SMS Button listener
        smsb.setOnClickListener(new OnClickListener()
        {
  public void onClick(View v)
          {
   //Start SMS Activity
      Intent intent = new Intent(context, SMSActivity.class);
      startActivity(intent);
          }
  });



    }


}
Copy and paste the following code in “IntentActivity.java”
package Android.Permission;

import android.app.Activity;

import android.os.Bundle;
import android.webkit.WebView;

public class InternetActivity extends Activity {

public void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);
  setContentView(R.layout.internet);

  final WebView webView = (WebView) findViewById(R.id.webView);
  webView.getSettings().setJavaScriptEnabled(true);
  webView.loadUrl("http://www.google.com");
}

}
Copy and paste the following code in “SMSActivity.java”
package Android.Permission;

import android.app.Activity;

import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.gsm.SmsManager;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

@SuppressWarnings("deprecation")

public class SMSActivity extends Activity {

public void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);
  setContentView(R.layout.sms);

        final Button send=(Button)findViewById(R.id.send);
        final EditText text=(EditText)findViewById(R.id.Text);
        final EditText addr=(EditText)findViewById(R.id.addr);
        send.setOnClickListener(new OnClickListener()
        {

  public void onClick(View v)
          {
   //get address and text
        String maddr=addr.getText().toString();
        String mtext=text.getText().toString();
        SmsManager smsmanager=SmsManager.getDefault();
        // send message
        if(maddr.trim().length()!=0&&mtext.trim().length()!=0)
        {
           try{
            PendingIntent pintent=PendingIntent.getBroadcast(SMSActivity.this, 0, new Intent(), 0);
            smsmanager.sendTextMessage(maddr, null, mtext, pintent, null);
           } catch (Exception e)
           {
            e.printStackTrace();
           }
           Toast.makeText(SMSActivity.this, "sending success", Toast.LENGTH_LONG).show();
        }
        else
           Toast.makeText(SMSActivity.this, "Enter Address and Message", Toast.LENGTH_SHORT).show();

};

});

}

}
Finally go to Permission-> AndoridManifest.xml, copy and paste following code to it.

      package="Android.Permission"
      android:versionCode="1"
      android:versionName="1.0">

                     android:name=".SMSActivity"
            android:theme="@android:style/Theme.NoTitleBar" />
                     android:name=".InternetActivity"
            android:theme="@android:style/Theme.NoTitleBar" />
                          android:label="@string/app_name">

Save and run the project, and one can see the below result:

When Internet button is clicked it will visit to google.com

Back to the main interface, click the SMS button. Start the new emulator and send a message to it.

Then 5554 emulator will receive the message

Go back to Pernission-> AndroidManifest.xml, delete following permission code from this file.

Then save again, run the project again. When click the internet button it cannot connect to the internet

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