Apps add limited product quantity to cart in android

[krishnaveni]

I have developed one android native app.

Here i have to add the limited number of products quantity only add to cart inandroid app.

For eg:

i have to add one product and enter quantity is 3 after that add another product and enter the quantity like 2 after that i have to add another product means that product is doesn't add to cart.how can i do .i have to add the product quantity size is 5 or less than 5 .please help me

I have successfully developed all product is add to cart.

This is my code:
[HIGH]
public class SingleMenuItem extends Activity {
static final String KEY_TITLE = "Name";
static final String KEY_COST = "Price";
static final String KEY_TOTAL = "total";
static final String KEY_QTY = "qty";
static final String KEY_THUMB_URL = "Image";
private EditText edit_qty_code;
private TextView txt_total;
private TextView text_cost_code;
private double itemamount = 0;
private double itemquantity = 0;
String mTitle, mQty, mCost, mTotal;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.single);

Intent in = getIntent();
String title = in.getStringExtra(KEY_TITLE);
String thumb_url = in.getStringExtra(KEY_THUMB_URL);
String cost = in.getStringExtra(KEY_COST);
String total = in.getStringExtra(KEY_TOTAL);

ImageLoader imageLoader = new ImageLoader(getApplicationContext());

ImageView imgv = (ImageView) findViewById(R.id.single_thumb);
final TextView txttitle = (TextView) findViewById(R.id.single_title);
TextView txtheader = (TextView) findViewById(R.id.actionbar);
text_cost_code = (TextView) findViewById(R.id.single_cost);
edit_qty_code = (EditText) findViewById(R.id.single_qty);
edit_qty_code.setText("1");
txt_total = (TextView) findViewById(R.id.single_total);

txttitle.setText(title);
txtheader.setText(title);
text_cost_code.setText(cost);
txt_total.setText(total);
imageLoader.DisplayImage(thumb_url, imgv);

itemamount = Double.parseDouble(text_cost_code.getText().toString());

txt_total.setText(Double.toString(itemamount));

edit_qty_code.addTextChangedListener(new TextWatcher() {

public void onTextChanged(CharSequence s, int start, int before,
int count) {
// TODO Auto-generated method stub
if (!edit_qty_code.getText().toString().equals("")
|| !edit_qty_code.getText().toString().equals("")) {
itemquantity = Double.parseDouble(edit_qty_code.getText()
.toString());
itemamount = Double.parseDouble(text_cost_code.getText()
.toString());
txt_total.setText(Double
.toString(itemquantity * itemamount));
} else {
txt_total.setText("0.00");
}
}

public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub

}

public void afterTextChanged(Editable s) {

}
});

ImageButton mImgAddCart = (ImageButton) findViewById(R.id.img_add);
mImgAddCart.setOnClickListener(new OnClickListener() {

public void onClick(View v) {
// TODO Auto-generated method stub
mTitle = txttitle.getText().toString();
mCost = text_cost_code.getText().toString();
mCost = mCost.replace("From ", "");
mTotal = txt_total.getText().toString();
mTotal = mTotal.replace("From ", "");
mQty = edit_qty_code.getText().toString();

if (Constants.mItem_Detail.size() <= 0) {
HashMap<String, String> mTempObj = new HashMap<String, String>();
mTempObj.put(KEY_TITLE, mTitle);
mTempObj.put(KEY_QTY, mQty);
mTempObj.put(KEY_COST, mCost);
mTempObj.put(KEY_TOTAL, mTotal);

Constants.mItem_Detail.add(mTempObj);

} else {
for (int i = 0; i < Constants.mItem_Detail.size(); i++) {
if (Constants.mItem_Detail.get(i).get(KEY_TITLE)
.equals(mTitle)) {
Constants.mItem_Detail.remove(i);


break;

} else {

}
}

HashMap<String, String> mTempObj = new HashMap<String, String>();
mTempObj.put(KEY_TITLE, mTitle);
mTempObj.put(KEY_QTY, mQty);
mTempObj.put(KEY_COST, mCost);
mTempObj.put(KEY_TOTAL, mTotal);

Constants.mItem_Detail.add(mTempObj);
}

AlertDialog.Builder alertdialog = new AlertDialog.Builder(
SingleMenuItem.this);
alertdialog.setTitle(getResources()
.getString(R.string.app_name));
alertdialog.setMessage("Add in ViewCart");

alertdialog.setPositiveButton("OK",
new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog,
int which) {
// TODO Auto-generated method stub
finish();
}
});

alertdialog.show();

}
});

ImageButton mImgViewCart = (ImageButton) findViewById(R.id.img_view);
mImgViewCart.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent mInViewCart = new Intent(SingleMenuItem.this,
ViewCartActivity.class);
startActivity(mInViewCart);
}
});
[/HIGH]

I have to add the product quantity size is equal to 5 or less than 5 only.otherwise have to display only 5 products only allowed to cart on alert dialog.