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I am Currently developing an app for final year. No errors appear, but when i select my searchScreen the app crashes

I started to develop an app for my final year project. I created all the navigation drawers with no issue and they worked fine when I had run the program. When I added a search-page that would link in with the mapsAcivity I added. No errors are appearing however the app will run fine but when I click on the navigation drawer to access the search page and mapsActivity page the app crashes. Any ideas what the issue is?Screengrab of the app failing
04-26 23:48:25.311: E/AndroidRuntime(13703): Caused by: android.view.InflateException: Binary XML file line #285: ScrollView can host only one direct child
04-26 23:48:25.311: E/AndroidRuntime(13703): Caused by: java.lang.IllegalStateException: ScrollView can host only one direct child
Below is the code for my search screen
package com.example.mcdai.derrytourism;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Rect;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.TypedValue;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
public class SearchScreen extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
Spinner restaurantSpinner, accommidationSpinner;
ArrayAdapter<CharSequence> adapter;
Button btnSearch;
TextView buttonLogout;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search_screen);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
final EditText freeTextEntry = (EditText)findViewById(R.id.editFreeTextSearch);
//final EditText editMinDestination = (EditText)findViewById(R.id.editMinDestination);
final EditText editMaxDestination = (EditText)findViewById(R.id.editMaxDestination);
final EditText editMinPrice = (EditText)findViewById(R.id.editMinPrice);
final EditText editMaxPrice = (EditText)findViewById(R.id.editMaxPrice);
final Spinner spinnerRestautantType = (Spinner)findViewById(R.id.spinnerRestaurantType);
final Spinner spinnerAccommidationType = (Spinner)findViewById(R.id. spinnerAccommidationType);
buttonLogout = (TextView)findViewById(R.id.buttonLogout);
editMinPrice.setEnabled(false);
editMaxPrice.setEnabled(false);
spinnerRestautantType.setEnabled(false);
spinnerAccommidationType.setEnabled(false);
//restaurant drop down menu
restaurantSpinner = (Spinner)findViewById(R.id.spinnerRestaurantType);
adapter = ArrayAdapter.createFromResource(this,R.array.restaurant_type, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
restaurantSpinner.setAdapter(adapter);
restaurantSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener()
{
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
{
TextView defaultPleaseSelect = (TextView) view;
if(position == 0)
{
// Set hint size and colour
defaultPleaseSelect.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14);
defaultPleaseSelect.setTextColor(Color.GRAY);
}
else
{
// Set dropdown selection and display an onscreen message
Toast.makeText(getBaseContext(),parent.getItemAtPosition(position)+" selected", Toast.LENGTH_LONG).show();
}
}
#Override
public void onNothingSelected(AdapterView<?> parent)
{
}
});
//Accommidation drop down menu
accommidationSpinner = (Spinner)findViewById(R.id.spinnerAccommidationType );
adapter = ArrayAdapter.createFromResource(this,R.array.accommidation, android.R.layout.simple_spinner_item);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
accommidationSpinner.setAdapter(adapter);
accommidationSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener()
{
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id)
{
TextView defaultPleaseSelect = (TextView) view;
if(position == 0)
{
// Set hint size and colour
defaultPleaseSelect.setTextSize(TypedValue.COMPLEX_UNIT_SP, 14);
defaultPleaseSelect.setTextColor(Color.GRAY);
}
else
{
// Set dropdown selection and display an onscreen message
Toast.makeText(getBaseContext(),parent.getItemAtPosition(position)+" selected", Toast.LENGTH_LONG).show();
}
}
#Override
public void onNothingSelected(AdapterView<?> parent)
{
}
});
btnSearch = (Button)findViewById(R.id.btnSearch);
btnSearch.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
Intent intentMapsActivity = new Intent(SearchScreen.this, MapsActivity.class);
//code to get min desitance for destination
//String minDestination = editMinDestination.getText().toString().trim();
//code to get max distance for destination
if(editMaxDestination.getText().toString().equals(""))
{
Toast.makeText(SearchScreen.this, "Please Populate Distance Field", Toast.LENGTH_LONG).show();
}
else
{
Double maxDestination = Double.parseDouble(editMaxDestination.getText().toString());
//code to get from editTextFreeSearch
String freeTextSearchParam = freeTextEntry.getText().toString();
//code to get restaurant type spinner
String restaurantTypeSpinner = spinnerRestautantType.getSelectedItem().toString();
//code to get accommidation type spinner
String accommidationSpinner = spinnerAccommidationType .getSelectedItem().toString();
if(freeTextSearchParam.equals("") && restaurantTypeSpinner.equals("Select") && accommidationSpinner.equals("Select"))
{
Toast.makeText(SearchScreen.this, "Please Populate Free Text, Price or Restaurant Type", Toast.LENGTH_LONG).show();
}
else
{
freeTextSearchParam = freeTextSearchParam.replaceAll("\\s", "\\+");
intentMapsActivity.putExtra("freeTextSearch", freeTextSearchParam);
intentMapsActivity.putExtra("maxDestination", maxDestination);
restaurantTypeSpinner = restaurantTypeSpinner.replaceAll("\\s", "\\+");
intentMapsActivity.putExtra("restaurantType", restaurantTypeSpinner);
accommidationSpinner = accommidationSpinner.replaceAll("\\s", "\\+");
intentMapsActivity.putExtra("accommidation", accommidationSpinner);
startActivity(intentMapsActivity);
}
}
}
});
buttonLogout = (TextView)findViewById(R.id.buttonLogout);
buttonLogout.setOnClickListener(new View.OnClickListener()
{
public void onClick(View v)
{
Intent intent = new Intent(getApplicationContext(), SearchScreen.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
}
});
}
#Override
public boolean dispatchTouchEvent(MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
View v = getCurrentFocus();
if ( v instanceof EditText) {
Rect outRect = new Rect();
v.getGlobalVisibleRect(outRect);
if (!outRect.contains((int)event.getRawX(), (int)event.getRawY())) {
v.clearFocus();
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
}
}
}
return super.dispatchTouchEvent( event );
}
public void onRadioButtonClicked(View view)
{
//EditText editMinDestination = (EditText)findViewById(R.id.editMinDestination);
EditText editMaxDestination = (EditText)findViewById(R.id.editMaxDestination);
EditText editMinPrice = (EditText)findViewById(R.id.editMinPrice);
EditText editMaxPrice = (EditText)findViewById(R.id.editMaxPrice);
Spinner spinnerRestautantType = (Spinner)findViewById(R.id.spinnerRestaurantType);
Spinner spinnerAccommidationType = (Spinner)findViewById(R.id.spinnerAccommidationType );
// Is the button now checked?
boolean checked = ((RadioButton) view).isChecked();
boolean unchecked = !((RadioButton) view).isChecked();
switch(view.getId())
{
case R.id.radioPrice:
if (checked)
{
editMinPrice.setEnabled(true);
editMaxPrice.setEnabled(true);
}break;
case R.id.radioRestuarantType:
if (checked)
{
spinnerRestautantType.setEnabled(true);
} break;
case R.id.radioAccommidationType:
if (checked)
{
spinnerAccommidationType.setEnabled(true);
}break;
}
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.search_screen, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_MainActivity) {
Intent intentMainActivity = new Intent(SearchScreen.this, MainActivity.class);
startActivity(intentMainActivity);
finish();
} else if (id == R.id.nav_SearchScreen) {
Intent intentSearchScreen = new Intent(SearchScreen.this,SearchScreen.class);
startActivity(intentSearchScreen);
finish();
} else if (id == R.id.nav_Attractions) {
Intent intentAttractions = new Intent(SearchScreen.this, Attractions.class);
startActivity(intentAttractions);
finish();
} else if (id == R.id.nav_Food) {
Intent intentFood = new Intent(SearchScreen.this, Food.class);
startActivity(intentFood);
finish();
} else if (id == R.id.nav_Accommidation) {
Intent intentAccommidation = new Intent(SearchScreen.this,Accommidation.class);
startActivity(intentAccommidation);
finish();
} else if (id == R.id.nav_Entertainment) {
Intent intentEntertainment = new Intent(SearchScreen.this,Entertainment.class);
startActivity(intentEntertainment);
finish();
} else if (id == R.id.nav_MapsActivity) {
Intent intentMapsActivity = new Intent(SearchScreen.this,MapsActivity.class);
startActivity(intentMapsActivity);
finish();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
Code below was taken from activity_search_screen.
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout 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"
tools:context="com.example.mcdai.derrytourism.SearchScreen">
<TextView
android:id="#+id/txtSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Search"
android:paddingBottom="50sp"
android:textAlignment="center"
android:textSize="20sp"
android:textAppearance="#style/TextAppearance.AppCompat.Body1"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<TextView
android:id="#+id/txtFreeTextSearch"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Free-Text Search"
android:textStyle="bold"
android:textAlignment="center"
android:textSize="20sp"
android:paddingBottom="20sp"
android:textAppearance="#style/TextAppearance.AppCompat"
android:layout_below="#+id/txtSearch"
android:layout_alignParentLeft="true" />
<Button
android:id="#+id/btnSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Search"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_alignTop="#+id/txtAccommidationType"
android:layout_toRightOf="#+id/txtDestination"
android:layout_centerHorizontal="true"
android:layout_marginTop="50sp" />
<TextView
android:id="#+id/txtAccommidationType"
android:text="AccommidationType"
android:textSize="15sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat"
android:layout_marginLeft="40dp"
android:layout_alignBottom="#+id/radioGroup"
android:layout_toRightOf="#+id/radioGroup"
android:paddingBottom="10sp" />
<EditText
android:id="#+id/editFreeTextSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="5dp"
android:ems="10"
android:inputType="text"
android:layout_below="#+id/txtFreeTextSearch"
android:layout_centerHorizontal="true" />
<Spinner
android:id="#+id/spinnerAccommidationType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/txtAccommidationType"
android:layout_alignParentRight="true" />
<Spinner
android:id="#+id/spinnerRestaurantType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottom="#+id/txtRestuarantType"
android:layout_alignParentRight="true"
android:layout_alignLeft="#+id/spinnerAccommidationType" />
<TextView
android:id = "#+id/buttonLogout"
android:layout_width = "wrap_content"
android:layout_height = "wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat"
android:text = "Logout"
android:textSize="15sp"
android:textAlignment="center"
android:clickable="false"
android:textColor="#android:color/holo_blue_dark"
android:onClick="onClick"
android:paddingBottom="50sp"
android:layout_alignBaseline="#+id/txtSearch"
android:layout_alignBottom="#+id/txtSearch"
android:layout_alignParentRight="true" />
<TextView
android:id="#+id/txtMaxPrice"
android:text="Max(£)"
android:textSize="10sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat"
android:textAlignment="center"
android:layout_above="#+id/editMinPrice"
android:layout_alignParentRight="true"
android:layout_alignLeft="#+id/editMaxPrice"
android:layout_marginBottom="-4sp" />
<EditText
android:id="#+id/editMaxPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="5"
android:hint="10"
android:textSize="15sp"
android:textAlignment="center"
android:background="#android:color/transparent"
android:inputType="numberDecimal"
android:layout_marginBottom="21dp"
android:layout_above="#+id/spinnerRestaurantType"
android:layout_alignParentRight="true" />
<TextView
android:id="#+id/txtMinPrice"
android:text="Min(£)"
android:textSize="10sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat"
android:textAlignment="center"
android:layout_above="#+id/editMinPrice"
android:layout_alignLeft="#+id/editMinPrice"
android:layout_toLeftOf="#+id/txtMaxPrice"
android:layout_marginBottom="-4sp"
android:paddingRight="55sp" />
<EditText
android:id="#+id/editMaxDestination"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="5"
android:hint="10"
android:textSize="15sp"
android:background="#android:color/transparent"
android:textAlignment="center"
android:inputType="number"
android:layout_below="#+id/txtDestination"
android:layout_centerHorizontal="true" />
<TextView
android:id="#+id/txtCriteriaSearch"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Criteria Search"
android:textStyle="bold"
android:textAlignment="center"
android:textSize="20sp"
android:paddingTop="20sp"
android:textAppearance="#style/TextAppearance.AppCompat"
android:paddingBottom="10sp"
android:layout_marginTop="41dp"
android:layout_below="#+id/editFreeTextSearch"
android:layout_centerHorizontal="true" />
<TextView
android:id="#+id/txtDestination"
android:text="Max Distance (km)"
android:textSize="15sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat"
android:layout_below="#+id/editFreeTextSearch"
android:layout_centerHorizontal="true"
android:paddingTop="10sp" />
<RadioGroup
android:id="#+id/radioGroup"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingTop="14sp"
android:paddingBottom="6sp"
android:layout_below="#+id/txtCriteriaSearch"
android:layout_alignParentLeft="true">
<RadioButton
android:id="#+id/radioPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="onRadioButtonClicked"
android:layout_marginTop="10sp"
android:layout_marginBottom="3sp" />
<RadioButton
android:id="#+id/radioRestuarantType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="onRadioButtonClicked"
android:layout_marginTop="10sp"/>
<RadioButton
android:id="#+id/radioAccommidationType"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/radioRestuarantType"
android:onClick="onRadioButtonClicked"
android:layout_marginTop="15sp" />
</RadioGroup>
<EditText
android:id="#+id/editMinPrice"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="5"
android:hint="0"
android:textSize="15sp"
android:textAlignment="center"
android:background="#android:color/transparent"
android:inputType="numberDecimal"
android:layout_alignBaseline="#+id/editMaxPrice"
android:layout_alignBottom="#+id/editMaxPrice"
android:layout_toLeftOf="#+id/buttonLogout"
android:paddingRight="55sp" />
<TextView
android:id="#+id/txtPrice"
android:text="Price"
android:textSize="15sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat"
android:paddingTop="7sp"
android:layout_alignTop="#+id/txtMaxPrice"
android:layout_alignLeft="#+id/txtRestuarantType" />
<TextView
android:id="#+id/txtRestuarantType"
android:text="Restuarant Type"
android:textSize="15sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="#style/TextAppearance.AppCompat"
android:layout_marginBottom="26dp"
android:paddingBottom="2sp"
android:layout_above="#+id/txtAccommidationType"
android:layout_alignLeft="#+id/txtAccommidationType"
android:layout_alignStart="#+id/txtAccommidationType" />
</RelativeLayout>
<android.support.v4.widget.DrawerLayout 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:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/app_bar_search_screen"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_search_screen"
app:menu="#menu/activity_search_screen_drawer" />
</android.support.v4.widget.DrawerLayout>
</ScrollView>

The reason you're crashing is your ScrollView has more than one child element in it. You'll need to either wrap them both in a parent view sitting inside the ScrollView or move your DrawerLayout outside of the ScrollView.
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<RelativeLayout 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"
tools:context="com.example.mcdai.derrytourism.SearchScreen">
<!-- RelativeLayout Children go here -->
</RelativeLayout>
<android.support.v4.widget.DrawerLayout 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:id="#+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/app_bar_search_screen"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_search_screen"
app:menu="#menu/activity_search_screen_drawer"/>
</android.support.v4.widget.DrawerLayout>
</FrameLayout>
</ScrollView>
I'm not sure exactly what you want your layout to look like but if you follow the above you shouldn't be crashing. Make sure you are using Code > Reformat Code to keep your indentations consistent. Good luck!

EditText fields showing different keyboards

So I have 2 edittext fields which to me look the same in my android project.
They are both for decimals.
However the KM one keeps bringing up a keyboard with the option of entering letters and doesn't let me close the keyboard.
The Miles one opens up a number only keyboard and has a checkmark which lets me close the keyboard.
Wondering if something in the code is making this happen
I have added images below
package a00891437.set3s.comp3975.convertunits;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.RadioGroup;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void onRadioButtonClicked(final View view){
EditText mText = (EditText) findViewById(R.id.MilesText);
EditText kmText = (EditText) findViewById(R.id.KilometersText);
mText.setText("");
kmText.setText("");
if(view.getId()== R.id.KmToMButton) {
mText.setEnabled(false);
kmText.setEnabled(true);
}
if(view.getId() == R.id.MToKmButton){
kmText.setEnabled(false);
mText.setEnabled(true);
}
}
public void onClickedText (final View view){
EditText kilometers = (EditText) findViewById(R.id.KilometersText);
EditText miles = (EditText) findViewById(R.id.MilesText);
double km= 0;
double m = 0;
if(kilometers.isEnabled() == true){
km = Double.parseDouble(kilometers.getText().toString());
m = km * 0.621371;
miles.setText(Double.toString(m));
}
if(miles.isEnabled() == true){
m = Double.parseDouble(miles.getText().toString());
km = m * 1.60934;
kilometers.setText(Double.toString(km));
}
}
}
XML :
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MainActivity"
android:id="#+id/screen">
TextView android:text="#string/hello_world" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="#+id/button"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="110dp"
android:onClick="onClickedText"/>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="#+id/KilometersText"
android:layout_above="#+id/button"
android:layout_marginBottom="134dp"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:enabled="false"
/>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="#+id/MilesText"
android:layout_centerVertical="true"
android:layout_alignLeft="#+id/KilometersText"
android:layout_alignStart="#+id/KilometersText"
android:enabled="false"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Km"
android:id="#+id/Kilometers"
android:layout_alignTop="#+id/KilometersText"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginLeft="43dp"
android:layout_marginStart="43dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="M"
android:id="#+id/Miles"
android:layout_alignTop="#+id/MilesText"
android:layout_alignRight="#+id/Kilometers"
android:layout_alignEnd="#+id/Kilometers" />
<RadioGroup
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/radio_group">
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Kilometers to Miles"
android:id="#+id/KmToMButton"
android:layout_alignParentTop="true"
android:layout_alignLeft="#+id/MToKmButton"
android:layout_alignStart="#+id/MToKmButton"
android:checked="false"
android:onClick="onRadioButtonClicked"/>/>
<RadioButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Miles to Kilometers"
android:id="#+id/MToKmButton"
android:layout_below="#+id/KmToMButton"
android:layout_alignLeft="#+id/Kilometers"
android:layout_alignStart="#+id/Kilometers"
android:checked="false"
android:onClick="onRadioButtonClicked"/>/>
</RadioGroup>
</RelativeLayout>

Also had this problem once where the EditTexts didn't seem to listen to the XML. this fixed it for me:
kmText.setRawInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);

(Android)Trying to understand why my method will not compute/display the correct value in the textview

My method that is called (calculate BMI) inside of my activity is supposed to compute and display BMI (based on the formula inside the code), and display its value inside of a textview. The application runs correctly, however the value displayed is always zero. I am struggling to figure out if the problem lies in my formula (unlikely) or if the way that I am passing the value is incorrect. Any help would be appreciated. Code below
.Java file
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.EditText;
import android.widget.TextView;
import android.view.View;
import android.widget.Toast;
public class Health extends ActionBarActivity {
EditText bloodPressure;
EditText cholesterol;
int weight;
int height;
EditText heightString;
EditText age;
TextView bmiText;
EditText weightString;
MyDBHandler dbHandler;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_health);
weightString = (EditText) findViewById(R.id.weightTextBox);
heightString =(EditText) findViewById(R.id.heightTextBox);
bmiText = (TextView) findViewById(R.id.bmiTextView);
bloodPressure = (EditText) findViewById(R.id.bloodPressureTextBox);
cholesterol = (EditText) findViewById(R.id.cholesterolTextBox);
age = (EditText) findViewById(R.id.ageTextBox);
dbHandler = new MyDBHandler(this, null, null, 1);
}
public void calculateBMI(View view)
{
weight = Integer.parseInt(weightString.getText().toString());
height = Integer.parseInt(heightString.getText().toString());
int BMI = 703 * (weight/(height*height));
bmiText.setText("Your calculated BMI is: " + Integer.toString(BMI));
Toast.makeText(Health.this, " Info Saved ", Toast.LENGTH_SHORT).show();
HealthInfo healthInfo = new HealthInfo(bloodPressure.getText().toString(),cholesterol.getText().toString(),heightString.getText().toString(),weightString.getText().toString(),age.getText().toString());
dbHandler.addHealth(healthInfo);
}
public void calorieClick(View view){
Intent i = new Intent(this, CalorieTracker.class);
startActivity(i);
}
public void openTips(View view){
Intent i = new Intent(this, HealthTipsActivity.class);
startActivity(i);
}
public void openPlans(View view){
Intent i = new Intent(this, DietPlansActivity.class);
startActivity(i);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_health, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
.XML file
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context="seniorproject.broncos.broncowellnessapp.Health"
android:background="#006699">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#string/blood_pressure_text"
android:id="#+id/bloodPressureTextView"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#string/cholesterol_text"
android:id="#+id/cholesterolTextView"
android:layout_below="#+id/bloodPressureTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="35dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#string/weight_text"
android:id="#+id/weightTextView"
android:layout_below="#+id/cholesterolTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="35dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#string/height_text"
android:id="#+id/heightTextView"
android:layout_below="#+id/weightTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="35dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="#string/age_text"
android:id="#+id/ageTextView"
android:layout_below="#+id/heightTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="35dp" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="text"
android:ems="10"
android:width="150dp"
android:id="#+id/bloodPressureTextBox"
android:layout_below="#+id/bloodPressureTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:width="150dp"
android:id="#+id/cholesterolTextBox"
android:layout_below="#+id/cholesterolTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:width="150dp"
android:id="#+id/weightTextBox"
android:layout_below="#+id/weightTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:width="150dp"
android:id="#+id/heightTextBox"
android:layout_below="#+id/heightTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:width="150dp"
android:id="#+id/ageTextBox"
android:layout_below="#+id/ageTextView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/diet_plans_button_text"
android:onClick="openPlans"
android:id="#+id/dietPlansButton"
android:layout_below="#+id/ageTextBox"
android:layout_marginTop="40dp"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/calorie_tracker_button"
android:id="#+id/calorieAccessButton"
android:layout_below="#+id/dietPlansButton"
android:onClick ="calorieClick"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/tips_button_text"
android:id="#+id/tipsButton"
android:onClick="openTips"
android:layout_below="#+id/calorieAccessButton"
android:layout_alignRight="#+id/calorieAccessButton"
android:layout_alignEnd="#+id/calorieAccessButton" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/BMI_button_text"
android:id="#+id/bmiButton"
android:onClick="calculateBMI"
android:layout_alignBottom="#+id/cholesterolTextBox"
android:layout_alignRight="#+id/dietPlansButton"
android:layout_alignEnd="#+id/dietPlansButton"
android:layout_marginRight="36dp"
android:layout_marginEnd="36dp"
android:background="#ff00b812" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Push Button to Compute BMI"
android:id="#+id/bmiTextView"
android:layout_alignBottom="#+id/weightTextBox"
android:layout_alignLeft="#+id/bmiButton"
android:layout_alignStart="#+id/bmiButton" />
</RelativeLayout>

Your weight and height variables are int. That is your problem. Change them to float or double
Currently, you are doing integer division which is causing the result to be truncated as follows: 1 / 2 gives 0

You are doing a division for integer which results mostly to zero.
That is why the result is always zero.
Change your weight and height variables to double like this
and just cast the result back to int.
double weight = 0.0;
double height = 0.0;
int BMI = (int)(703 * (weight/(height*height)));
bmiText.setText("Your calculated BMI is: " + Integer.toString(BMI));

Place this on the end of the onCreate() method:
findViewById(R.id.bmiButton).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
weight = Integer.parseInt(weightString.getText().toString());
height = Integer.parseInt(heightString.getText().toString());
int BMI = 703 * (weight/(height*height));
bmiText.setText("Your calculated BMI is: " + Integer.toString(BMI));
Toast.makeText(Health.this, " Info Saved ", Toast.LENGTH_SHORT).show();
HealthInfo healthInfo = new HealthInfo(bloodPressure.getText().toString(),cholesterol.getText().toString(),heightString.getText().toString(),weightString.getText().toString(),age.getText().toString());
dbHandler.addHealth(healthInfo);
}
});
Some android version does not support onClick attribute for Button tag in XAML.

making toast for validate edit text when i push a button

im tired to try this thing,can help me find out my solution.
I try to validate Edittext if edittext filed empty when i push a button will show a toast message.
this my layout.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MyActivity"
android:id="#+id/relativeLayout">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Panjang"
android:id="#+id/textView"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_gravity="right|left" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="20"
android:id="#+id/editTextPanjang"
android:layout_below="#+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:maxLength="10"
android:hint="Panjang"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Lebar"
android:id="#+id/textView2"
android:layout_below="#+id/editTextPanjang"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_gravity="right|left"
/>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="20"
android:id="#+id/editTextLebar"
android:layout_below="#+id/textView2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:maxLength="10"
android:hint="Lebar"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hitung Luas"
android:id="#+id/buttonHitungLuas"
android:layout_below="#+id/editTextLebar"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:onClick="hitugLuas"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Luas"
android:id="#+id/textView3"
android:layout_below="#id/buttonHitungLuas"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"/>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="20"
android:id="#+id/editTextLuas"
android:layout_below="#id/textView3"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/editTextLuas"
android:id="#+id/buttonClear"
android:text="#string/btn_clear"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/buttonClear"
android:layout_below="#+id/editTextLuas"
android:id="#+id/buttonExit"
android:text="Exit"
/>
</RelativeLayout>
this my java
package com.example.aan.myfirstapp;
import android.content.Context;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class MyActivity extends ActionBarActivity {
private EditText edtPanjang;
private EditText edtLebar;
private EditText edtLuas;
private Button btnHitungLuas;
private Button btnClear;
private Button btnExit;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
initUI();
initEvent();
}
private void initUI(){
edtPanjang = (EditText) findViewById(R.id.editTextPanjang);
edtLebar = (EditText) findViewById(R.id.editTextLebar);
edtLuas = (EditText) findViewById(R.id.editTextLuas);
btnHitungLuas = (Button) findViewById(R.id.buttonHitungLuas);
btnClear = (Button) findViewById(R.id.buttonClear);
btnExit = (Button) findViewById(R.id.buttonExit);
}
private void initEvent() {
btnHitungLuas.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
hitungLuas();
}
}
btnClear.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
clearData();
}
});
btnExit.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View paramView) {
MyActivity.this.finish();
}
});
}
private void hitungLuas(){
int panjang = Integer.parseInt(edtPanjang.getText().toString());
int lebar = Integer.parseInt(edtLebar.getText().toString());
int luas = panjang*lebar;
edtLuas.setText(luas+"");
}
private void clearData(){
edtLuas.setText("");
edtLebar.setText("");
edtPanjang.setText("");
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_my, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
Sory for my bad english
log chat when i run the emulator
03-12 09:29:21.784 1710-2323/com.google.process.gapps E/Backup﹕ [LegacyBackupAccountManager] Fail to get legacy transport context.
android.content.pm.PackageManager$NameNotFoundException: Application package com.google.android.backup not found
at android.app.ContextImpl.createPackageContextAsUser(ContextImpl.java:2139)
at android.app.ContextImpl.createPackageContext(ContextImpl.java:2115)
at android.content.ContextWrapper.createPackageContext(ContextWrapper.java:658)
at com.google.android.gms.backup.am.<init>(SourceFile:47)
at com.google.android.gms.backup.a.a(SourceFile:65)
at com.google.android.gms.backup.c.a(SourceFile:39)
at com.google.android.gms.backup.b.a(SourceFile:67)
at com.google.android.gms.backup.b.a(SourceFile:39)
at com.google.android.gms.backup.BackupAccountNotifierService.onHandleIntent(SourceFile:76)
at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.os.HandlerThread.run(HandlerThread.java:61)

You need to handle onClick of the button in this manner and show a toast if the edittext is empty
if(editText.getText().toString().trim().length()==0){
Toast.makeText(getApplicationContext(), "field is empty",
Toast.LENGTH_LONG).show();
}else{
//your code here
}

If you want to check for empty EditText.. try TextUtils for it.
Example
if (TextUtils.isEmpty(edtText.getText().toString().trim())) {
Toast.makeText(getBaseContext(),
"Empty", Toast.LENGTH_SHORT)
.show();
} else {
Toast.makeText(getBaseContext(),
"Not Empty", Toast.LENGTH_SHORT)
.show();
}

Android: Creating using LayoutInflater

I have a problem with creating things using LayoutInflater:
package com.tip.calculator;
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
public class MainActivity extends Activity implements View.OnClickListener {
EditText billamount, percent, people;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_main);
billamount = (EditText)findViewById(R.id.billtext);
percent = (EditText)findViewById(R.id.percenttext);
people = (EditText)findViewById(R.id.numberpeople);
Button unevensplitbutton = (Button)findViewById(R.id.unevensplit);
Button calculates = (Button)findViewById(R.id.calculate);
unevensplitbutton.setOnClickListener(this);
calculates.setOnClickListener(this);
}
public void onClick(View v) {
switch(v.getId()){
case R.id.calculate:
TableLayout calculatenumberinflated = (TableLayout)findViewById(R.id.numbertable2);
View view = getLayoutInflater().inflate(R.layout.calculatenumbertable,calculatenumberinflated,false);
calculatenumberinflated.addView(view);
break;
case R.id.unevensplit:
break;
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
And the XML of calculatenumbertable:
<?xml version="1.0" encoding="utf-8"?>
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="25dp"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/numbertable2">
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Each Person Pays"
android:id="#+id/numberpeople"
android:layout_column="3" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:id="#+id/eachpersonedit"
android:layout_column="6" />
</TableRow></TableLayout>
And the XML of fragment_main:
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="25dp">
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Bill amount"
android:id="#+id/bill"
android:layout_column="3" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="#+id/billtext"
android:layout_column="6" />
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Percentage %"
android:id="#+id/percentage"
android:layout_column="3" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="#+id/percenttext"
android:layout_column="6" />
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Number of people"
android:id="#+id/textView"
android:layout_column="3" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="number"
android:ems="10"
android:id="#+id/numberpeople"
android:layout_column="6" />
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Split Unevenly"
android:id="#+id/unevensplit"
android:layout_column="3" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Calculate"
android:id="#+id/calculate"
android:layout_column="6" />
</TableRow>
</TableLayout>
</ScrollView>
It returns an error where:
12-16 21:22:56.825 28459-28459/com.tip.calculator E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.NullPointerException
at com.tip.calculator.MainActivity.onClick(MainActivity.java:35)
Where line 35 is the calculatenumberinflated.addView(view); line of code.
I feel lost right now, can someone please clarify what I am doing wrong? Thanks.

You are getting Nullpointer error at this line TableLayout calculatenumberinflated = (TableLayout)findViewById(R.id.numbertable2); which is not at all available in your fragment_main layout. It in the layout calculatenumbertable file and as you are inflating fragment_main layout so its not getting the correct id of your TableLayout.
Try to add your layout in TableRow besides TableLayout. Create separate row in your calculatenumbertable layout and then try add the layout in that row. You can not add layout directly in TableLayout.
Try as below:
In your calculatenumbertable add row in last as below:
<TableRow
android:id="#+id/tablerow"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
</TableRow>
In your onClick add the layout as below:
public void onClick(View v) {
switch(v.getId()){
case R.id.calculate:
TableRowcalculatenumberinflated = (TableRow)findViewById(R.id.tablerow);
View view = getLayoutInflater().inflate(R.layout.calculatenumbertable,calculatenumberinflated,false);
calculatenumberinflated.addView(view);
break;
case R.id.unevensplit:
break;
}
}

Just move android:id="#+id/numbertable2" from calculatenumbertable.xml to fragment_main.xml in the tableLayouts.

Try this
LayoutInflater inflater=getLayoutInflater();
View view= inflater.inflate(R.layout.calculatenumbertable, null);
calculatenumberinflated.addView(view);