Financial Calculator published

Today I have published my 7th app Financial Calculator in google play. (you will see 8 apps in market page. But Kannada Hindi keyboard is no longer supported as Akshara keyboard is its successor.)

This app is meant for us Indians who want to save our money a little bit in FDs and RDs. Or/and pay EMI each month for housing and other loans. The app can calculate EMI amount, FD or RD maturity value. (So you can correct the bank official if they make a mistake :) )

It will also calculate how much will you pay extra for the loan. It lets you compare two loans, compare two FDs or RDs.

There are other calculations too. Gratuity calculator, loan afford
ability calculator, savings goal calculator and currency converter.

So what are you waiting for? Download app today and give me your valuable feedback.

Comments

Simple ListView Adapter and list item select

When you are using a listview in your applications many a times you will write your own adapter to display item. But if your list is very simple showing a list of strings, you can use inbuilt adapters like ArrayAdapter, SimpleCursorAdapter etc.

ArrayAdapterLet us look at an example

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ListView android:layout_height="wrap_content" android:id="@+id/listView1" android:layout_width="match_parent" android:layout_margin="20dp"> </ListView> </LinearLayout>

And add these lines to the onCreate method of the activity.

super.onCreate(savedInstanceState); …

Drawables in Android - Layer drawable

Let us see how to use layer drawable. You can have two or more bitmaps on different layers to create such a drawable

Using xml:

You should use layer-list in your xml file to create layerdrawable. Here is layer.xml
<?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item> <bitmap android:src="@drawable/whiteicon" android:gravity="top|left"/> </item> <item> <bitmap android:src="@drawable/blueicon" android:gravity="top|left"/> </item> <item> <bitmap android:src="@drawable/redicon" android:gravity="top|left"/> </item> </layer-list>
We are using three different bitmaps whiteicon.png, redicon.png and blueicon.png which are present in /res/drawable/mdpi folder. All these are of different sizes and aligned to top left. This drawab…

DatePickers in Android

DatePicker is a view which lets the user select a date showing a calendar or 3 spinners for dd, mm and yy.

Let us see how to use this.
Easy Method: To use a DatePicker you can use DatePickerDialog. This can be created and shown programmatically too.

publicvoidonCreate(Bundle b){/*********/ Button btn =(Button)findViewById(R.id.btn); btn.setOnClickListener(new View.OnClickListener(){@OverridepublicvoidonClick(View v){ showPickerDialog();}});}privatevoidshowPickerDialog(){ DatePickerDialog dtPickerDlg =new DatePickerDialog(this,this, 2017,10,20); dtPickerDialog.show();}

In our xml file, let us have a button and in the onclick listener of the button, let us display the date picker dialog - we call showPickerDialog.

In showPickerDialog, we are using a random date to initialize.

The first parameter is the context. Second parameter is the class which implements the interface OnDateSetListener. Next three parameters are year, month (Jan is 0) and …

Android Coding Tips

Search This Blog