Android Open Source - CreditCardEntry Credit Card Entry

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License

The source code is released under:
MIT License
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Java Source Code

package com.devmarvel.creditcardentry.internal;
/* w ww . java2s  .  c o  m*/
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Color;
import android.graphics.Point;
import android.os.CountDownTimer;
import android.os.Handler;
import android.util.Log;
import android.view.Display;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.view.WindowManager;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.EditText;
import android.widget.HorizontalScrollView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.devmarvel.creditcardentry.R;
import com.devmarvel.creditcardentry.fields.CreditCardText;
import com.devmarvel.creditcardentry.fields.CreditEntryFieldBase;
import com.devmarvel.creditcardentry.fields.ExpDateText;
import com.devmarvel.creditcardentry.fields.SecurityCodeText;
import com.devmarvel.creditcardentry.fields.ZipCodeText;
import com.devmarvel.creditcardentry.internal.CreditCardUtil.CardType;
import com.devmarvel.creditcardentry.internal.CreditCardUtil.CreditCardFieldDelegate;
import com.devmarvel.creditcardentry.library.CreditCard;

public class CreditCardEntry extends HorizontalScrollView implements
    OnTouchListener, OnGestureListener, CreditCardFieldDelegate {

  private Context context;

  private LinearLayout container;

  private ImageView cardImage;
  private ImageView backCardImage;
  private CreditCardText creditCardText;
  private ExpDateText expDateText;
  private SecurityCodeText securityCodeText;
  private ZipCodeText zipCodeText;

  private TextView textFourDigits;

  private TextView textHelper;

  private boolean showingBack;

  @SuppressWarnings("deprecation")
  @SuppressLint("NewApi")
  public CreditCardEntry(Context context) {
    super(context);

    this.context = context;

    WindowManager wm = (WindowManager) context
        .getSystemService(Context.WINDOW_SERVICE);
    Display display = wm.getDefaultDisplay();

    int currentapiVersion = android.os.Build.VERSION.SDK_INT;
    int width, height;

    if (currentapiVersion < 13) {
      width = display.getWidth(); // deprecated
      height = display.getHeight();
    } else {
      Point size = new Point();
      display.getSize(size);
      width = size.x;
      height = size.y;
    }

    LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT,
        LayoutParams.WRAP_CONTENT);
    setLayoutParams(params);

    this.setHorizontalScrollBarEnabled(false);
    this.setOnTouchListener(this);
    this.setSmoothScrollingEnabled(true);

    container = new LinearLayout(context);
    container.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,
        LayoutParams.WRAP_CONTENT));
    container.setOrientation(LinearLayout.HORIZONTAL);

    creditCardText = new CreditCardText(context);
    creditCardText.setDelegate(this);
    creditCardText.setWidth((int) (width));
    container.addView(creditCardText);

    textFourDigits = new TextView(context);
    textFourDigits.setTextSize(20);
    container.addView(textFourDigits);

    expDateText = new ExpDateText(context);
    expDateText.setDelegate(this);
    container.addView(expDateText);

    securityCodeText = new SecurityCodeText(context);
    securityCodeText.setDelegate(this);
    container.addView(securityCodeText);

    zipCodeText = new ZipCodeText(context);
    zipCodeText.setDelegate(this);
    container.addView(zipCodeText);

    this.addView(container);

    creditCardText.requestFocus();
  }

  @Override
  protected void onFinishInflate() {
    super.onFinishInflate();

    focusOnField(creditCardText);
  }

  @Override
  public boolean onTouch(View v, MotionEvent event) {
    return true;
  }

  @Override
  public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
      float velocityY) {
    return true;
  }

  @Override
  public boolean onDown(MotionEvent e) {
    return false;
  }

  @Override
  public void onLongPress(MotionEvent e) {
  }

  @Override
  public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
      float distanceY) {
    return false;
  }

  @Override
  public void onShowPress(MotionEvent e) {
  }

  @Override
  public boolean onSingleTapUp(MotionEvent e) {
    return false;
  }

  @Override
  public void onCardTypeChange(CardType type) {
    cardImage.setImageResource(CreditCardUtil.cardImageForCardType(type,
        false));
    backCardImage.setImageResource(CreditCardUtil.cardImageForCardType(
        type, true));
    updateCardImage(false);
  }

  @Override
  public void onCreditCardNumberValid() {
    focusOnField(expDateText);

    String number = creditCardText.getText().toString();
    int length = number.length();
    String digits = number.substring(length - 4);
    textFourDigits.setText(digits);
    Log.i("CreditCardNumber", number);
  }

  @Override
  public void onExpirationDateValid() {
    focusOnField(securityCodeText);
  }

  @Override
  public void onSecurityCodeValid() {
    focusOnField(zipCodeText);
  }

  @Override
  public void onZipCodeValid() {

  }

  @Override
  public void onBadInput(final EditText field) {
    Animation shake = AnimationUtils.loadAnimation(context, R.anim.shake);
    field.startAnimation(shake);
    field.setTextColor(Color.RED);

    final Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
      @Override
      public void run() {
        field.setTextColor(Color.BLACK);
      }
    }, 1000);
  }

  public void setCardImageView(ImageView image) {
    cardImage = image;
  }

  public void updateCardImage(boolean back) {
    if (showingBack != back) {
      flipCardImage();
    }

    showingBack = back;
  }

  public void flipCardImage() {
    FlipAnimator animator = new FlipAnimator(cardImage, backCardImage,
        backCardImage.getWidth() / 2, backCardImage.getHeight() / 2);
    if (cardImage.getVisibility() == View.GONE) {
      animator.reverse();
    }
    cardImage.startAnimation(animator);
  }

  @Override
  public void focusOnField(CreditEntryFieldBase field) {
    field.setFocusableInTouchMode(true);
    field.requestFocus();
    field.setFocusableInTouchMode(false);

    if (this.textHelper != null) {
      this.textHelper.setText(field.helperText());
    }

    if (field.getClass().equals(CreditCardText.class)) {
      new CountDownTimer(1000, 20) {

        public void onTick(long millisUntilFinished) {
          CreditCardEntry.this.scrollTo((int) (millisUntilFinished),
              0);
        }

        public void onFinish() {
          CreditCardEntry.this.scrollTo(0, 0);
        }
      }.start();
    } else {
      new CountDownTimer(1500, 20) {

        public void onTick(long millisUntilFinished) {
          CreditCardEntry.this.scrollTo(
              (int) (2000 - millisUntilFinished), 0);
        }

        public void onFinish() {

        }
      }.start();
    }

    if (field.getClass().equals(SecurityCodeText.class)) {
      ((SecurityCodeText) field).setType(creditCardText.getType());
      updateCardImage(true);
    } else {
      updateCardImage(false);
    }
  }

  @Override
  public void focusOnPreviousField(CreditEntryFieldBase field) {
    if (field.getClass().equals(ExpDateText.class)) {
      focusOnField(creditCardText);
    } else if (field.getClass().equals(SecurityCodeText.class)) {
      focusOnField(expDateText);
    } else if (field.getClass().equals(ZipCodeText.class)) {
      focusOnField(securityCodeText);
    }
  }

  public ImageView getBackCardImage() {
    return backCardImage;
  }

  public void setBackCardImage(ImageView backCardImage) {
    this.backCardImage = backCardImage;
  }

  public TextView getTextHelper() {
    return textHelper;
  }

  public void setTextHelper(TextView textHelper) {
    this.textHelper = textHelper;
  }

  public boolean isCreditCardValid() {
    return creditCardText.isValid() && expDateText.isValid()
        && securityCodeText.isValid() && zipCodeText.isValid();
  }

  public CreditCard getCreditCard() {
    if (isCreditCardValid()) {
      return new CreditCard(creditCardText.getText().toString(),
          expDateText.getText().toString(), securityCodeText
              .getText().toString(), zipCodeText.getText()
              .toString());
    } else {
      return null;
    }
  }
}
Java Source Code List
