Android custom button with server checking animation
This is a demo code which polls sever after every 1 seconds and starts blinking if the repose is gretaer then 1 else stops blinking
Sunday, June 16, 2013
Sunday, June 9, 2013
Thursday, May 16, 2013
Android Edit Text With Different shapes
The code for different edit shapes like rounded corner , oval shape etc can be created using shapes attributes
The code for below can be downloaded from here
http://stackoverflow.com/questions/3646415/how-to-create-edittext-with-rounded-corners
http://letustech.wordpress.com/category/android/
Wednesday, May 15, 2013
Android Slide Toggle button
By going through the following links i have created a simple demo app for iphone like slide toggle for android
The code can be downloaded from here
http://stackoverflow.com/questions/9938315/toggle-button-in-iphone-style
http://samir-mangroliya.blogspot.in/p/android-switch-button.html
http://stackoverflow.com/questions/11260218/how-to-implement-sliding-button
http://www.mokasocial.com/2011/07/sexily-styled-toggle-buttons-for-android/
http://stackoverflow.com/questions/8150596/android-how-to-create-slide-on-off-button
The code can be downloaded from here
http://stackoverflow.com/questions/9938315/toggle-button-in-iphone-style
http://samir-mangroliya.blogspot.in/p/android-switch-button.html
http://stackoverflow.com/questions/11260218/how-to-implement-sliding-button
http://www.mokasocial.com/2011/07/sexily-styled-toggle-buttons-for-android/
http://stackoverflow.com/questions/8150596/android-how-to-create-slide-on-off-button
Android View Pager
Android custom view pager for disabling default switch activity
Step 1.
PageViewActivity.java
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager.SimpleOnPageChangeListener;
import android.util.Log;
import android.view.View;
public class PageViewActivity extends FragmentActivity {
MyPageAdapter pageAdapter;
int pageId=0;
CustomViewPager pager;
PageListener pageListener;
int currentPage=0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
List<Fragment> fragments = getFragments();
pageAdapter = new MyPageAdapter(getSupportFragmentManager(), fragments);
pager =(CustomViewPager)findViewById(R.id.viewpager);
pager.setAdapter(pageAdapter);
pager.setPagingEnabled(false);
pageListener = new PageListener();
pager.setOnPageChangeListener(pageListener);
}
private List<Fragment> getFragments(){
List<Fragment> fList = new ArrayList<Fragment>();
fList.add(MyFragment.newInstance("Fragment 1"));
fList.add(MyFragment.newInstance("Fragment 2"));
fList.add(MyFragment.newInstance("Fragment 3"));
return fList;
}
public void next(View v){
if(pageId<=2)
{
pager.setCurrentItem(pageId);
}
pageId++;
}
private class PageListener extends SimpleOnPageChangeListener{
public void onPageSelected(int position) {
Log.i("test", "onPageSelected " + position);
currentPage = position;
}
//Called when the scroll state changes.
public void onPageScrollStateChanged(int state)
{
}
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels)
{
Log.i("test", "onPageScrolled " + position);
currentPage = position;
}
}
}
Step 2.
MyPageAdapter .java
import java.util.List;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
class MyPageAdapter extends FragmentPagerAdapter {
private List<Fragment> fragments;
public MyPageAdapter(FragmentManager fm, List<Fragment> fragments) {
super(fm);
this.fragments = fragments;
}
@Override
public Fragment getItem(int position) {
return this.fragments.get(position);
}
@Override
public int getCount() {
return this.fragments.size();
}
}
Step 3.
MyFragment.java
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class MyFragment extends Fragment {
public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
public static final MyFragment newInstance(String message)
{
MyFragment f = new MyFragment();
Bundle bdl = new Bundle(1);
bdl.putString(EXTRA_MESSAGE, message);
f.setArguments(bdl);
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String message = getArguments().getString(EXTRA_MESSAGE);
View v = inflater.inflate(R.layout.myfragment_layout, container, false);
TextView messageTextView = (TextView)v.findViewById(R.id.textView);
messageTextView.setText(message);
return v;
}
}
Step 4.
CustomViewPager.java
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
public class CustomViewPager extends android.support.v4.view.ViewPager {
private boolean enabled;
public CustomViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
this.enabled = true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onTouchEvent(event);
}
return false;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onInterceptTouchEvent(event);
}
return false;
}
/**
* Custom implementation to enable or not swipe :)
*
* @param enabled
* true to enable swipe, false otherwise.
*/
public void setPagingEnabled(boolean enabled) {
this.enabled = enabled;
}
}
Step 5.
activity_main.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" >
<com.example.viewpagerdemo.CustomViewPager
android:id="@+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</RelativeLayout>
Step 6.
myfragment_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Next"
android:onClick="next"
/>
</RelativeLayout>
http://architects.dzone.com/articles/android-tutorial-using
http://blog.evoxmusic.fr/content/android-how-disable-viewpager-page-switch
Step 1.
PageViewActivity.java
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager.SimpleOnPageChangeListener;
import android.util.Log;
import android.view.View;
public class PageViewActivity extends FragmentActivity {
MyPageAdapter pageAdapter;
int pageId=0;
CustomViewPager pager;
PageListener pageListener;
int currentPage=0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
List<Fragment> fragments = getFragments();
pageAdapter = new MyPageAdapter(getSupportFragmentManager(), fragments);
pager =(CustomViewPager)findViewById(R.id.viewpager);
pager.setAdapter(pageAdapter);
pager.setPagingEnabled(false);
pageListener = new PageListener();
pager.setOnPageChangeListener(pageListener);
}
private List<Fragment> getFragments(){
List<Fragment> fList = new ArrayList<Fragment>();
fList.add(MyFragment.newInstance("Fragment 1"));
fList.add(MyFragment.newInstance("Fragment 2"));
fList.add(MyFragment.newInstance("Fragment 3"));
return fList;
}
public void next(View v){
if(pageId<=2)
{
pager.setCurrentItem(pageId);
}
pageId++;
}
private class PageListener extends SimpleOnPageChangeListener{
public void onPageSelected(int position) {
Log.i("test", "onPageSelected " + position);
currentPage = position;
}
//Called when the scroll state changes.
public void onPageScrollStateChanged(int state)
{
}
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels)
{
Log.i("test", "onPageScrolled " + position);
currentPage = position;
}
}
}
Step 2.
MyPageAdapter .java
import java.util.List;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
class MyPageAdapter extends FragmentPagerAdapter {
private List<Fragment> fragments;
public MyPageAdapter(FragmentManager fm, List<Fragment> fragments) {
super(fm);
this.fragments = fragments;
}
@Override
public Fragment getItem(int position) {
return this.fragments.get(position);
}
@Override
public int getCount() {
return this.fragments.size();
}
}
Step 3.
MyFragment.java
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class MyFragment extends Fragment {
public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
public static final MyFragment newInstance(String message)
{
MyFragment f = new MyFragment();
Bundle bdl = new Bundle(1);
bdl.putString(EXTRA_MESSAGE, message);
f.setArguments(bdl);
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String message = getArguments().getString(EXTRA_MESSAGE);
View v = inflater.inflate(R.layout.myfragment_layout, container, false);
TextView messageTextView = (TextView)v.findViewById(R.id.textView);
messageTextView.setText(message);
return v;
}
}
Step 4.
CustomViewPager.java
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
public class CustomViewPager extends android.support.v4.view.ViewPager {
private boolean enabled;
public CustomViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
this.enabled = true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onTouchEvent(event);
}
return false;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onInterceptTouchEvent(event);
}
return false;
}
/**
* Custom implementation to enable or not swipe :)
*
* @param enabled
* true to enable swipe, false otherwise.
*/
public void setPagingEnabled(boolean enabled) {
this.enabled = enabled;
}
}
Step 5.
activity_main.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" >
<com.example.viewpagerdemo.CustomViewPager
android:id="@+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</RelativeLayout>
Step 6.
myfragment_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Next"
android:onClick="next"
/>
</RelativeLayout>
http://architects.dzone.com/articles/android-tutorial-using
http://blog.evoxmusic.fr/content/android-how-disable-viewpager-page-switch
Android GSON parsing
Step 1.
Download the Gson library from http://code.google.com/p/google-gson/ and add it to your java build path in eclipse.
Step 2.
Create a php file and paste the following json data into it
{"as_of":"Thu, 25 Feb 2010 11:30:17 +0000","trends"
:[{"name":"#nowplaying",
"url":"http://search.twitter.com/search?q=%23nowplaying"}
,{"name":"#nothingworsethan",
"url":"http://search.twitter.com/search?q=%23nothingworsethan"},
{"name":"Dubai Mall",
"url":"http://search.twitter.com/search?q=%22Dubai+Mall%22"},
{"name":"iPad Gets",
"url":"http://search.twitter.com/search?q=%22iPad+Gets%22"},
{"name":"#SuperJuniorTrot",
"url":"http://search.twitter.com/search?q=%23SuperJuniorTrot"},
{"name":"Justin Bieber",
"url":"http://search.twitter.com/search?q=%22Justin+Bieber%22"},
{"name":"Click",
"url":"http://search.twitter.com/search?q=Click"},
{"name":"Jaebum",
"url":"http://search.twitter.com/search?q=Jaebum"},
{"name":"#tosavemoney",
"url":"http://search.twitter.com/search?q=%23tosavemoney"},
{"name":"Protection",
"url":"http://search.twitter.com/search?q=Protection"}]}
Step 3.
Create the following two classes to hold the information of the json data
TwitterTrend .java
public class TwitterTrend {
public String name;
public String url;
}
TwitterTrends .java
public class TwitterTrends {
public String as_of;
public List<TwitterTrend> trends;
public String getAs_Of() {
return as_of;
}
public void setAs_Of(String asOf) {
as_of = asOf;
}
public List<TwitterTrend> getTrends() {
return trends;
}
public void setTrends(List<TwitterTrend> trends) {
this.trends = trends;
}
}
Step 4. create the main activity
MainActivity.java
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
runJSONParser();
}
public InputStream getJSONData(String url){
DefaultHttpClient httpClient = new DefaultHttpClient();
URI uri;
InputStream data = null;
try {
uri = new URI(url);
HttpGet method = new HttpGet(uri);
HttpResponse response = httpClient.execute(method);
data = response.getEntity().getContent();
} catch (Exception e) {
e.printStackTrace();
}
return data;
}
public void runJSONParser(){
try{
Log.i("MY INFO", "Json Parser started..");
Gson gson = new Gson();
Reader r = new InputStreamReader(getJSONData("http://10.0.2.2/gsonTest/index.php"));
Log.e("MY INFO", r.toString());
TwitterTrends objs = gson.fromJson(r, TwitterTrends.class);
Log.e("MY INFO", ""+objs.getTrends().size());
for(TwitterTrend tr : objs.getTrends()){
Log.e("TRENDS", tr.name + " - " + tr.url);
}
}catch(Exception ex){
ex.printStackTrace();
}
}
}
step 5.
Add the following lines into the xml file
<uses-permission android:name="android.permission.INTERNET" />
Step 6.
run the app , u will see the following log
05-15 22:01:54.623: I/MY INFO(1796): Json Parser started..
05-15 22:01:54.733: E/MY INFO(1796): java.io.InputStreamReader@43e55058
05-15 22:01:54.773: E/MY INFO(1796): 10
05-15 22:01:54.773: E/TRENDS(1796): #nowplaying - http://search.twitter.com/search?q=%23nowplaying
05-15 22:01:54.773: E/TRENDS(1796): #nothingworsethan - http://search.twitter.com/search?q=%23nothingworsethan
05-15 22:01:54.773: E/TRENDS(1796): Dubai Mall - http://search.twitter.com/search?q=%22Dubai+Mall%22
05-15 22:01:54.773: E/TRENDS(1796): iPad Gets - http://search.twitter.com/search?q=%22iPad+Gets%22
05-15 22:01:54.773: E/TRENDS(1796): #SuperJuniorTrot - http://search.twitter.com/search?q=%23SuperJuniorTrot
05-15 22:01:54.773: E/TRENDS(1796): Justin Bieber - http://search.twitter.com/search?q=%22Justin+Bieber%22
05-15 22:01:54.773: E/TRENDS(1796): Click - http://search.twitter.com/search?q=Click
05-15 22:01:54.773: E/TRENDS(1796): Jaebum - http://search.twitter.com/search?q=Jaebum
05-15 22:01:54.773: E/TRENDS(1796): #tosavemoney - http://search.twitter.com/search?q=%23tosavemoney
05-15 22:01:54.773: E/TRENDS(1796): Protection - http://search.twitter.com/search?q=Protection
http://www.softwarepassion.com/android-series-parsing-json-data-with-gson/
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