Implementing MAF Logon Code

Implement MAF Logon Code.

Set required permissions in your Android manifest file. MAF Logon uses these Android device functions:

Network and Internet communication
Phone state reading
External storage

To give access to these Android resources, add these lines to your AndroidManifest.xml:

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

Create LogonActivity. To present logon screens, create a new Android activity and implement the LogonListener interface. Use the New Java Class wizard:

Select android.app.Activity as the superclass, and add com.sap.maf.tools.logon.lgoonui.api.LogonListener to the implemented interfaces.
Click Finish to create the activity, and stub methods, for the LogonListener. The MAF Logon component calls back these methods on various events.

Add the activity to your project’s AndroidManifest.xml:

<activity android:name="com.sap.mobile.maf.mafdoctest.LogonActivity"/>

Add these fields to the class:
```
private final String LOG_TAG = "MAFLogon";
private final String APPLICATIONID = "com.sap.maf.test.adr.logonapp";
private LogonUIFacade logonUIFacade;
private Activity act;
private Context ctx;
```
To automatically resolve all the necessary imports needed for the fields, click the Source menu, and select Organize Imports.

Override the onCreate methods of the superclass with this implementation:

@Override
protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	//get an instance of the LogonUIFacade
	logonUIFacade = LogonUIFacade.getInstance();
	//set activity reference
	act = this;
	//set context reference
	ctx = this;
	//init LogonUIFacede
	logonUIFacade.init(this, ctx, APPLICATIONID);
	//ask LogonUIFacede to present the logon screen
	//set the resulting view as the content view for this activity
	setContentView(logonUIFacade.logon());
}

In the MainActivity.java file, send an Intent to present the LogonActivity:

@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		//present MAF Logon Screen
		Intent i = new Intent(this, LogonActivity.class);
		startActivity(i);
	}

In the LogonActivity.java file, implement the onLogonFinished method from the LogonListener:

@Override
	public void onLogonFinished(String arg0, boolean arg1, 
LogonContext arg2) {
		//hides MAFLogonUI when logon finished  and returns to main activity 
		finish();
}

Run your application in Android emulator. Now you can present the MAFLogonUI and register successfully.