Android Reversing - Showing an uber basic conditional patch

Description

Running apktool d APKNAME.apk will result in output that can be modified and later repackaged and ran.

isRegistered() is hardcoded to return false.  

Changing 
const/4 v0, 0x0 
to
const/4 v0, 0x1 
will cause isRegistered to ALWAYS return true. Thus always telling the application that it is registered.

.method public isRegistered()Z
    .locals 1

    .prologue
    .line 24
    const/4 v0, 0x1

    return v0
.end method

ReversingDemoActivity.java

package com.reversing.demo;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class ReversingDemoActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        TextView tv = (TextView) this.findViewById(R.id.android_info_text);
        if (isRegistered())
        	tv.setText("GOOD BOY: Application is registered");
        else
        	tv.setText("BAD BOY: Application is not registered");
    }
    
    public boolean isRegistered()
    {
    	//A million pointless checks here
    	return false;
    }
}

ReversingDemoActivity.smali

# virtual methods
.method public isRegistered()Z
    .locals 1

    .prologue
    .line 24
    const/4 v0, 0x0

    return v0
.end method

.method public onCreate(Landroid/os/Bundle;)V
    .locals 2
    .parameter "savedInstanceState"

    .prologue
    .line 11
    invoke-super {p0, p1}, Landroid/app/Activity;->onCreate(Landroid/os/Bundle;)V

    .line 12
    const/high16 v1, 0x7f03

    invoke-virtual {p0, v1}, Lcom/reversing/demo/ReversingDemoActivity;->setContentView(I)V

    .line 14
    const/high16 v1, 0x7f05

    invoke-virtual {p0, v1}, Lcom/reversing/demo/ReversingDemoActivity;->findViewById(I)Landroid/view/View;

    move-result-object v0

    check-cast v0, Landroid/widget/TextView;

    .line 15
    .local v0, tv:Landroid/widget/TextView;
    invoke-virtual {p0}, Lcom/reversing/demo/ReversingDemoActivity;->isRegistered()Z

    move-result v1

    if-eqz v1, :cond_0

    .line 16
    const-string v1, "GOOD BOY: Application is registered"

    invoke-virtual {v0, v1}, Landroid/widget/TextView;->setText(Ljava/lang/CharSequence;)V

    .line 19
    :goto_0
    return-void

    .line 18
    :cond_0
    const-string v1, "BAD BOY: Application is not registered"

    invoke-virtual {v0, v1}, Landroid/widget/TextView;->setText(Ljava/lang/CharSequence;)V

    goto :goto_0
.end method

How to change the "toast message text" colour?