This tutorial will teach you to make a small Fish shop Inventory system using android studio. The following app will use to manage the Fish shop.The app is developed steps ahead of the existing world. While app development will be very useful for the future as well.
We made the layout design
activity_main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:gravity="center" tools:context=".MainActivity"> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical" android:gravity="center"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Fish Inventory Shop" android:textColor="@color/colorAccent" android:textSize="30dp" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Mes" /> <Spinner android:id="@+id/sp1" android:layout_width="match_parent" android:layout_height="wrap_content" android:dropDownSelector="@color/colorAccent" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Qty" /> <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:ems="10" android:id="@+id/qty" android:textAlignment="center" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:id="@+id/bt1" android:text="Ok" android:background="@color/colorPrimary" /> </LinearLayout> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Total" /> <EditText android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:ems="10" android:id="@+id/tot" android:textAlignment="center" /> </LinearLayout> </LinearLayout>
MainActivity
public class MainActivity extends AppCompatActivity { Spinner s1; EditText ed1,ed2; Button b1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ed1= findViewById(R.id.qty); ed2= findViewById(R.id.tot); s1 = findViewById(R.id.sp1); String[] mes = {"Kg","Gr"}; ArrayAdapter ad = new ArrayAdapter<String>(this,R.layout.support_simple_spinner_dropdown_item,mes); s1.setAdapter(ad); b1 = findViewById(R.id.bt1); b1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { String item = s1.getSelectedItem().toString(); double qty = Double.parseDouble(ed1.getText().toString()); if(item.equals("Kg")) { double cal = (qty * 140) ; ed2.setText(String.valueOf(cal)); } else { double cal = (qty/1000 * 140) ; ed2.setText(String.valueOf(cal)); } } }); } }
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