Tag Archives: Public Void

Uploading Image to Server – Android Eclipse Version.

By | February 18, 2016

Hi all, In today’s tutorial I will show you how to send an image to server using POST method in ANDROID. If you are working in Android studio, then checkout the article here. Uploading an image to server is a basic requirement in many of our application. Sending data to server which is using a PHP Script is… Read More »

Handling Multiple Instances of a Widget in Android and Identifying each instance with it’s own ID.

By | July 5, 2013

Hey everyone…….Hope all are well….. This post is about Android Widgets. This is going to be one of the bigger posts in Coderzheaven. This posts helps you to handle multiple instances of a Widget. Many of our problem is to identify different instances of the same widget. But there is a solution to this problem. Please check out… Read More »

Wave Scale Animation in GridViews in Android

By | May 28, 2013

Hello all Previously I have shown many posts where we animate each row of the GridView randomly, linearly etc. GridView RandomFade animation in Android and Cascade animation in a ListView in Android. In today’s post I will show you how to create a wave scale animation in the ListViews. Please refer to my old posts for the extra… Read More »

How to create a beautiful wheel animation in android?

By | May 18, 2013

Today’s post is about animation, a beautiful animation, exploring capabilities of android. You can click on the link to download the code. Here we will have three java classes and no XML files. 1. GraphicsActivity.java 2. PictureLayout.java 3. Sweep.java At first we start with PictureLayout.java [java] package com.example.sweep; import android.content.Context; import android.graphics.Canvas; import android.graphics.Picture; import android.graphics.Rect; import android.graphics.drawable.Drawable;… Read More »

How to use ImageSwitcher in Android?

By | May 12, 2013

You can read more about ImageSwitcher here http://developer.android.com/reference/android/widget/ImageSwitcher.html Click on the link below to download the code. This is the layout that contains the ImageSwitcher [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" > <ImageSwitcher android:id="@+id/switcher" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" /> <Gallery android:id="@+id/gallery" android:layout_width="match_parent" android:layout_height="60dp" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" android:background="#55000000" android:gravity="center_vertical" android:spacing="16dp" /> </RelativeLayout> [/xml] What we will do is… Read More »

ListView Bottom to Top Animation in Android.

By | May 10, 2013

Like my previous posts animation chapter is again continued. This time the animation in on a ListView from Bottom to Top. You have already seen animations from Top to Bottom in my previous posts. See some of my posts here. All animation posts from CoderzHeaven is here Click on the download link at the bottom to download the… Read More »

Creating a Drawable animation in Android.

By | May 3, 2013

This is a simple example of how to animate a drawable in Android. This example is from the official android demo applications. Here we have 5 java classes. AnimateDrawable.java AnimateDrawables.java GraphicsActivity.java PictureLayout.java ProxyDrawable.java AnimateDrawable.java [java] package com.coderzheaven.animatedrawable; import android.graphics.Canvas; import android.graphics.drawable.Drawable; import android.view.animation.Animation; import android.view.animation.AnimationUtils; import android.view.animation.Transformation; public class AnimateDrawable extends ProxyDrawable { private Animation mAnimation; private Transformation… Read More »

GridView RandomFade animation in Android

By | May 1, 2013

In some of my older posts I have already showed a lot of animations on ListView and GridViews. Search coderzheaven for ListView and GridView animations if you want to see the articles and posts. This is also yet another post on animation. Here what I will do is create an animation in a GridView such that all cells… Read More »

Different types of Animation – Push Up in, Push Up Out, Push Left in, Push Left Out, HyperSpace In, HyperSpace Out in a ViewFlipper in Android.

By | April 22, 2013

Hello all…. This is going to be a big post.. Check out my previous post for a rotate3D animation between a ListView and an Image. How to create a rotate 3D Animation between a ListView and an ImageView in Android? Today I will show you different types of Animations using ViewFlipper in a textView. Here we have 4… Read More »

How to draw Arcs in Android using canvas?

By | January 10, 2013

This is a simple example showing how to draw Arcs in android, You can use this to create piecharts or someother similar thing you want. Here we have 3 classes. 1. GraphicsActivity.java 2. MainActivity.java 3. PictureLayout.java GraphicsActivity.java [java] package com.coderzheaven.arcdrawing; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.ViewGroup; class GraphicsActivity extends Activity { // set to true to… Read More »

CoverFlow in Android – Complete implementation with source code.

By | December 17, 2012

Have you seen the coverflow in iPhone. This is the Android implementation of CoverFlow. Please leave your comments if this article is helpful for you. Let’s see how. This is the CoverFlow class that extends the Gallery. [java] package com.coderzheaven.coverflow; import android.content.Context; import android.graphics.Camera; import android.graphics.Color; import android.graphics.Matrix; import android.util.AttributeSet; import android.view.View; import android.view.animation.Transformation; import android.widget.Gallery; import android.widget.ImageView;… Read More »

How to crop an Image in Android?

By | December 15, 2012

This is a sample program that launches the camera and crop the captured image. Check this link to another crop image example. http://www.coderzheaven.com/2011/03/15/crop-an-image-in-android/ This is the layout xml. activity_main.xml [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:orientation="vertical" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="3dp" android:text="@string/intro" android:textStyle="bold" /> <Button android:id="@+id/capture_btn" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/capture" /> <ImageView android:id="@+id/picture" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="5dp" android:contentDescription="@string/picture"… Read More »

How to call a function using a String in Android and also pass parameters along with it.

By | December 5, 2012

Hi all … Today’s post is all about calling functions using Simple Strings. Here we will do two things. 1. Call a function without parameters. 2. Call a function with parameters. This is the class which contains the functions that we are going to call using “simple Strings”. [java] package com.coderzheaven.Stringtofunction; public class Test { public String functionWithParams(String… Read More »

How to load a spinner with values from SQlite Database in android?

By | November 18, 2012

Here is a simple example showing how to load a database values in a spinner in android. OK we will start. This is the layout for the spinner row. spinner_row.xml [xml] <?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation = "vertical" android:id="@+id/tv" android:layout_margin="10dp"> </TextView> [/xml] This is the layout for the interface. activity_main.xml [xml] <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"… Read More »

How to pass an Object from One Activity to another in Android.

By | November 5, 2012

Hello all This is a simple post that shows How to pass an Object from One Activity to another in Android. I am going to pass the following object from One Activity to another. MyObject{ String name; String website; } This is the class that defines the Object. [java] package com.coderzheaven.passarraylist; import android.os.Parcel; import android.os.Parcelable; public class MyObject… Read More »

How to pass an arraylist value from one activity to another in android?

By | October 28, 2012

This simple example shows how to pass an ArrayList from one activity to another in Android. This is the first activity on which we are sending the arrayList. MainActivity [java] package com.coderzheaven.passarraylist; import android.content.Intent; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.View; import java.util.ArrayList; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) {… Read More »

How to use NumberFormat Class in Android? – Rounding a number in android, formatting, getting decimal values etc in android.

By | October 14, 2012

[java] package com.coderzheaven.numberformattest; import java.text.DecimalFormat; import java.text.NumberFormat; import java.util.Locale; import android.app.Activity; import android.os.Bundle; import android. widget. TextView; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); TextView tv = new TextView(this); tv.setPadding(10, 10, 10, 10); NumberFormat numberFormat = new DecimalFormat("##"); String str = numberFormat.format(-01234.567); // -1235 tv.setText(str + "\n\n"); str = numberFormat.format(00); // 0… Read More »

All about ArrayList – Android.

By | October 12, 2012

[java] package com.coderzheaven.arraylistcomplete; import java.util.ArrayList; import java.util.Arrays; import java.util.Iterator; import java.util.List; import java.util.ListIterator; import java.util.Vector; import android.app.Activity; import android.os.Bundle; public class MainActivity extends Activity { @SuppressWarnings("unchecked") @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ArrayList<String> al = new ArrayList<String>(); System.out.println("Initial size of al: " + al.size()); al.add("C"); al.add("A"); al.add("E"); al.add("B"); al.add("D"); al.add("F"); al.add(1, "A2"); System.out.println("Size of al after… Read More »

Dynamically Adding, Removing, Toggling and Removing all ActionBar Tabs in Android – Part 2?

By | October 8, 2012

Hi all.. In today’s post I will show you how to add actionbar tabs dynamically, remove one by one , hide and unhide them, removing all tabs at once etc. This simple java code does that. First create a project and in the MainActivity, paste this. [java] package com.coderzheaven.actionbartabs; import android.app.ActionBar; import android.app.ActionBar.Tab; import android.app.Activity; import android.app.Fragment; import… Read More »

How to get table values from a MySQL database and show it in Android as Tables.?

By | September 25, 2012

Here we are accessing a mysql database and get the table values and show it in the Android side as tables. These are some tutorials that I have posted on connection with php and getting tablevalues. 1. Android phpmySQL connection redone. 2. Simplest Lazy Loading ListView Example in Android with data populated from a MySQL database using php.… Read More »

Simplest Lazy Loading ListView Example in Android with data populated from a MySQL database using php.

By | September 23, 2012

Hello all… You may have seen many implementations of Lazy Loading ListView. Today I will show you my method to create Lazy Loading ListViews. I dont know whether it can be any more simple than this. In this I am using AsyncTask to download each image. So we will start. Here we have 6 classes. 1. MainPage –… Read More »

How to show error in an EditText using setError() in Android?

By | September 18, 2012

We will go straight to the code. [java] package com.coderzheaven.seterror; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.EditText; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button btn =(Button)findViewById(R.id.button1); btn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { EditText edittext =(EditText)findViewById(R.id.editText1); if(edittext.getText().length()==0){ edittext.setError("Field cannot be left blank."); }… Read More »

How will you create a custom Notification in Android with a custom Layout?

By | September 15, 2012

This sample application does that. First create an xml for your notification. custom_notification.xml [xml] <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/layout" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="10dp" > <ImageView android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentLeft="true" android:layout_marginRight="10dp" /> <TextView android:id="@+id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/image" style="Custom Notification Title" /> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/image" android:layout_below="@id/title" style="Custom Notification Text" /> </RelativeLayout> [/xml] Now the java code. [java] package com.coderzheaven.customnotification; import android.app.Activity;… Read More »

How to create a Scrolling Text (marquee) in android using TextView?

By | September 15, 2012

OK At first we will create the XML that contains a TextView. marqueetext.xml [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" > <TextView android:text="Really Long Scrolling Text Goes Here…. ….. ………… …. …." android:singleLine="true" android:ellipsize="marquee" android:marqueeRepeatLimit="marquee_forever" android:scrollHorizontally="true" android:id="@+id/TextView03" android:padding="5dip" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </RelativeLayout> [/xml] Now the java code [java] package com.example.marqueetext; import android.app.Activity; import android.os.Bundle; import android.view.Menu; import android.widget.TextView; public… Read More »

How to create a blinking text in Android?

By | September 13, 2012

Hello everyone… Here I am explaining two methods on how to create a blinking textview in Android. One with the help of Animation class and other with a Logic. Now let’s see that.. Place a textview with an id of “tv” in your layout and attempt this. [java] package com.coderzheaven.blinktext; import android.app.Activity; import android.os.Bundle; import android.os.Handler; import android.view.Menu;… Read More »