Android设置对话框用于设置应用程序

@Override
protected void onCreate(Bundle savedInstanceState)
{
    if(this.application.getPreferences().isFirstTimeRun())
    {
        startActivity(new Intent(this, WizardStepOneActivity.class));
    }
    else
    {
        startActivity(new Intent(this, MainActivity.class));
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
    super.onActivityResult(requestCode, resultCode, data);
    switch(requestCode)
    {
    case WIZARD_STEP_1:
        Intent i = new Intent(this, WizardStepTwoActivity.class);
        startActivityForResult(i, WIZARD_STEP_2);
        break;
    case WIZARD_STEP_2:
        Intent i = new Intent(this, WizardStepThreeActivity.class);
        startActivityForResult(i, WIZARD_STEP_3);
        break;
    case WIZARD_STEP_3:
        //Set the breadcrumb to indicate that the user has set their preferences
        this.application.setFirstTimeRunCompleted();

        //Start main activity
        startActivity(new Intent(this, MainActivity.class));
        break;

    }