Drops of Java: ListView using StringArray in Android

/***********************AndroidManifest.xml**********************/

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.sampleapp.application"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk android:minSdkVersion="7" />

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >

<activity

android:name=".SampleAppActivity"

android:label="@string/app_name" >

<intent-filter>

</intent-filter>

</activity>

<activity

android:name=".LoginActivity"

android:label="@string/login_act" >

</activity>

<activity

android:name=".NewListView"

android:label="@string/app_name" >

</activity>

</application>

</manifest>

/**********************SampleAppActivity.java*********************/

package com.sampleapp.application;

import android.app.Activity;

import android.app.AlertDialog;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

public class SampleAppActivity extends Activity implements OnClickListener {

Button btn_next;

EditText nw_name;

EditText nw_degn;

EditText nw_cmpyUrl;

EditText nw_mob;

EditText nw_address;

Boolean isAlert = false;

private static final String REGULAR_EXP_NUMBER = "[\\d]+";

private static final String REGULAR_EXP_URL = "http://([\\w-]+\\.)+[\\w-]+(/[\\w- ./?%&=]*)?";

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

nw_name = (EditText) findViewById(R.id.nw_name);

nw_degn = (EditText) findViewById(R.id.nw_degn);

nw_cmpyUrl = (EditText) findViewById(R.id.nw_cmpy);

nw_mob = (EditText) findViewById(R.id.nw_mob);

nw_address = (EditText) findViewById(R.id.nw_address);

btn_next = (Button) findViewById(R.id.btn_next);

btn_next.setOnClickListener(this);

}

public void onClick(View v) {

String name = (String) nw_name.getText().toString();

String degn = (String) nw_degn.getText().toString();

String cmpy = (String) nw_cmpyUrl.getText().toString();

String mobile = (String) nw_mob.getText().toString();

int mob;

if (!cmpy.matches(REGULAR_EXP_URL)) {

new AlertDialog.Builder(this).setTitle("Error message")

.setMessage("Url incorrect")

.setNeutralButton("Close", null).show();

isAlert = true;

}else

isAlert = false;

if (mobile.equals("") || !mobile.matches(REGULAR_EXP_NUMBER)) {

mob = 0;

} else {

mob = Integer.parseInt(nw_mob.getText().toString());

}

String address = nw_address.getText().toString();

String delimiter = ",";

String[] addArray = address.split(delimiter);

Intent i = new Intent(SampleAppActivity.this, LoginActivity.class);

Bundle b = new Bundle();

b.putString("name", name);

b.putString("degn", degn);

b.putString("cmpy", cmpy);

b.putInt("mob", mob);

b.putStringArray("addArray", addArray);

i.putExtras(b);

if (!isAlert)

startActivity(i);

}

/*******************LoginActivity.java*******************/

package com.sampleapp.application;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.TextView;

public class LoginActivity extends Activity implements OnClickListener {

TextView nameText;

TextView address;

Button btn_show;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.register);

Bundle b = this.getIntent().getExtras();

String name = b.getString("name");

String degn = b.getString("degn");

String cmpyUrl = b.getString("cmpy");

int mob = b.getInt("mob");

String[] addArray = b.getStringArray("addArray");

String values = "Name: " + name + "\nDesignation: " + degn + "\nCompanyUrl: " + cmpyUrl + "\nContact: " + mob;

nameText = (TextView) findViewById(R.id.r_name);

nameText.setText(values);

address = (TextView) findViewById(R.id.r_address);

String addressInArray = "";

for (int i = 0; i < addArray.length; i++) {

addressInArray = addressInArray + addArray[i];

}

address.setText("\nAddress: "+addressInArray);

btn_show = (Button) findViewById(R.id.btn_show);

btn_show.setOnClickListener(this);

}

@Override

public void onClick(View v) {

Intent i = new Intent(LoginActivity.this, NewListView.class);

startActivityForResult(i, 0);

}

/*********************NewListView.java*********************/

package com.sampleapp.application;

import android.app.ListActivity;

import android.content.res.Resources;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.TextView;

import android.widget.Toast;

public class NewListView extends ListActivity implements OnItemClickListener {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

Resources res = getResources();

String[] cities = res.getStringArray(R.array.cities);

ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.list_item, cities);

setListAdapter(adapter);

ListView lv = getListView();

lv.setTextFilterEnabled(true);

lv.setOnItemClickListener(new OnItemClickListener() {

public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

// When clicked, show a toast with the TextView text

Toast.makeText(getApplicationContext(),((TextView) view).getText(), Toast.LENGTH_SHORT).show();

}

});

}

@Override

public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {

}

/***************************main.xml************************/

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:orientation="vertical" >

<TableLayout

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:layout_gravity="center_horizontal"

android:gravity="center"

android:stretchColumns="1" >

<TextView

android:id="@+id/name"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/name" />

<EditText

android:id="@+id/nw_name"

android:layout_width="120dip"

android:layout_height="wrap_content"

android:layout_marginLeft="20dip"

android:hint="Name"

android:text="" />

</TableRow>

<TextView

android:id="@+id/degn"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/designation" />

<EditText

android:id="@+id/nw_degn"

android:layout_width="120dip"

android:layout_height="wrap_content"

android:layout_marginLeft="20dip"

android:hint="Designation"

android:text="" />

</TableRow>

<TextView

android:id="@+id/cmpy"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/company" />

<EditText

android:id="@+id/nw_cmpy"

android:layout_width="120dip"

android:layout_height="wrap_content"

android:layout_marginLeft="20dip"

android:hint="Company Url"

android:text="" />

</TableRow>

<TextView

android:id="@+id/mob"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/mobile" />

<EditText

android:id="@+id/nw_mob"

android:layout_width="120dip"

android:layout_height="wrap_content"

android:layout_marginLeft="20dip"

android:hint="Enter number"

android:text="" />

</TableRow>

<TextView

android:id="@+id/address"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/address" />

<EditText

android:id="@+id/nw_address"

android:layout_width="120dip"

android:layout_height="wrap_content"

android:layout_marginLeft="20dip"

android:hint="Split with ,"

android:text="" />

</TableRow>

<Button

android:id="@+id/btn_go"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_vertical"

android:text="@string/go" >

</Button>

<Button

android:id="@+id/btn_next"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_vertical"

android:text="@string/next" >

</Button>

</TableRow>

</TableLayout>

</LinearLayout>

/**************************register.xml***************************/

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:gravity="center"

android:orientation="vertical" >

<TextView

android:id="@+id/r_name"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="" />

<TextView

android:id="@+id/r_address"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="" />

<Button

android:id="@+id/btn_show"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center_vertical"

android:text="@string/show" >

</Button>

</LinearLayout>

/***********************list_item.xml**********************/

<?xml version="1.0" encoding="utf-8"?>

<TextView xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:padding="10dp"

android:textSize="16sp" >

</TextView>

/**********************strings.xml*************************/

<?xml version="1.0" encoding="utf-8"?>

<string name="hello">hi, AlertActivity!</string>

<string name="app_name">SampleApp</string>

<string name="login_act">LoginAct</string>

<string name="designation">Designation</string>

<string name="company">Company Url</string>

<string name="mobile">Mobile</string>

<string name="address">Address</string>

<string-array name="cities">

<item>Chennai</item>

<item>Trichy</item>

<item>Perambalur</item>

<item>Salem</item>

<item>Karur</item>

<item>Namakkal</item>

<item>Pondy</item>

</string-array>

<string name="show">SHOW LISTVIEW</string>

</resources>

Drops of Java

Wednesday, 14 March 2012

ListView using StringArray in Android

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