AndroidAppLink

Hello, 
Dear All, 

Before the question phase i want to share a bite of tips that help you at interview time:

Golden tips for a successful interview:

. Keep smiley face and occasion.
. Be clear and loud voice.
. Asks them to give the same answer.
. The answer was short and to the point.
. Do not give the wrong answer quickly.
. Try to think about the correct answer.
. Give a convincing answer.

- Interview fun experiences

Some candidates during interviews loose (nervous) is going to be. The text is also aimed at them specifically.

What about the future that will consist Remove. Keep in mind, healthy and occasion. Maintain your natural and naturalness. 

What to speak with the elders of the house that is the conversation. So it's a pleasure, enthusiasm and pomp give interviews. Leave everything else to God. It is with you and have faith that He cares for you. 

I hope,this chapter will help you.

All the very Best ... !!!!

In this chapter we learn how to implement custom Listview in android.Listview is one of the most popular controls, It can be used in many different forms and can be customized to suitable of app requirement.In this tutorial, I will demonstrate you how you can bind a simple array of Strings with ListView. 
May You Want To See Another Examples Of How To Create Simple Listview Part-1 and Part-2. 
Customlistview with same image Part-1. 
In this example we set a different image for all list items.

Let's go for coding:

CREATE NEW ANDROID PROJECT

We need for this example:
1) activity_main.xml (...res/layout/ )
2) mylist.xml (...res/layout/ )
3) MainActivity.java
4) CustomListAdapter.java

Step 1: Write code into activity_main.xml
This is a main activity where we put list view.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <ListView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>

Step 2: Write code into mylist..xml
Created custom view for listview to show with image and text in list view.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/icon"
        android:layout_width="60dp"
        android:layout_height="60dp"
        android:padding="5dp" />

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/item"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:layout_marginTop="5dp"
            android:padding="2dp"
            android:text="Medium Text"
            android:textAppearance="?android:attr/textAppearanceMedium"
            android:textColor="#0000aa" />

        <TextView
            android:id="@+id/textView1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="10dp"
            android:text="TextView" />
    </LinearLayout>

</LinearLayout>

Step 3: Write code into MainActivity.java

package dev.androidapplink.customlistviewapp_2;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity {
// create variable
ListView list;
//define string for List item(s)
String[] itemname = { "pic1", "pic2", "pic3", "pic4", "pic5", "pic6",
"pic7", "pic8" };
//set image according to list item(s) from drawable
Integer[] imgid = { R.drawable.pic1, R.drawable.pic2, R.drawable.pic3,
R.drawable.pic4, R.drawable.pic5, R.drawable.pic6, R.drawable.pic7,
R.drawable.pic8, };

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//create adapter and bind item name with image id
CustomListAdapter adapter = new CustomListAdapter(this, itemname, imgid);
list = (ListView) findViewById(R.id.list);
list.setAdapter(adapter);
//implement on item click listener to show toast on click but you can put here your operation as your requirement of app
list.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
String Slecteditem = itemname[+position];
// make your operation here i make toast.

Toast.makeText(getApplicationContext(), Slecteditem,
Toast.LENGTH_SHORT).show();

}
});
}

}

Step 4: Write code into CustomListAdapter.java
CustomListAdapter.java is a custom list adapter class which provides data to list view.
package dev.androidapplink.customlistviewapp_2;

import android.app.Activity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class CustomListAdapter extends ArrayAdapter<String> {

private final Activity context;
private final String[] itemname;
private final Integer[] imgid;

public CustomListAdapter(Activity context, String[] itemname,
Integer[] imgid) {
super(context, R.layout.mylist, itemname);
// TODO Auto-generated constructor stub

this.context = context;
this.itemname = itemname;
this.imgid = imgid;
}

public View getView(int position, View view, ViewGroup parent) {
LayoutInflater inflater = context.getLayoutInflater();
View rowView = inflater.inflate(R.layout.mylist, null, true);

TextView txtTitle = (TextView) rowView.findViewById(R.id.item);
ImageView imageView = (ImageView) rowView.findViewById(R.id.icon);
TextView extratxt = (TextView) rowView.findViewById(R.id.textView1);

txtTitle.setText(itemname[position]);
imageView.setImageResource(imgid[position]);
extratxt.setText("Description " + itemname[position]);
return rowView;
};

}

In this chapter we learn how to implement custom Listview in android.Listview is one of the most popular controls, It can be used in many different forms and can be customized to suitable of app requirement.In this tutorial, I will demonstrate you how you can bind a simple array of Strings with ListView. 
May You Want To See Another Examples Of How To Create Simple Listview Part-1 and Part-2.
Customlistview with Different image Part-2.
In this example we set a same image for all list items.

Let's go for coding:

CREATE NEW ANDROID PROJECT

We need for this example:
1) activity_main.xml (...res/layout/ )
2) mylist.xml (...res/layout/ )
3) MainActivity.java

Step 1: Write code into activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <ListView
        android:id="@+id/android:list"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" />

</LinearLayout>

Step 2: Write code into mylist.xml
Created custom view for list view to show with image and text in list view.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/icon"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_marginBottom="4dp"
        android:layout_marginLeft="4dp"
        android:layout_marginRight="4dp"
        android:layout_marginTop="4dp"
        android:src="@drawable/ic_launcher" />

    <TextView
        android:id="@+id/Itemname"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="4dp"
        android:textSize="18sp" />


</LinearLayout>

Step 3: Write code into MainActivity.java

package dev.androidapplink.customlistviewapp;

import android.os.Bundle;
import android.app.ListActivity;
import android.widget.ArrayAdapter;

public class MainActivity extends ListActivity {
       
         //define string for List item(s)
String[] itemname = { "Android", ".NET", "JAVA", "FireFox",
"SQlite", "Orecale", "xmp", "Database" };

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
               
                //Bind custom list view by using ArrayAdapter
this.setListAdapter(new ArrayAdapter<String>(this, R.layout.mylist,
R.id.Itemname, itemname));
}

}

In this example we learn about Checkbox. checkbox having a two type of states checked or unchecked.here we learn a simple example one is display result in Textview and second is display toaster.

Let's go for coding.

CREATE NEW ANDROID PROJECT

Step 1: Write code into activity_main.xml

<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:id="@+id/tvDetails"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:background="#fff" />

    <CheckBox
        android:id="@+id/cbAALink"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="https://Androidapplink.blogspot.in" />

    <CheckBox
        android:id="@+id/cbLike"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Like" />


</LinearLayout>

Step 2: Write code into MainActivity.java

package dev.androidapplink.checkboxapp;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.CheckBox;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
// create variables
TextView tvdetail;
CheckBox cbaalink, cblikes, cbimgicn;
OnClickListener checkBoxListener;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

// load control
cbaalink = (CheckBox) findViewById(R.id.cbAALink);
cblikes = (CheckBox) findViewById(R.id.cbLike);

checkBoxListener = new OnClickListener() {

@Override
public void onClick(View v) {
tvdetail = (TextView) findViewById(R.id.tvDetails);

if (cbaalink.isChecked()) {
 
// set message
tvdetail.setText("Following:");
 
// get string of check box + set message (tvdetail.setText("Following:");)
tvdetail.setText(tvdetail.getText().toString() + " "
+ cbaalink.getText().toString());
}
if (cblikes.isChecked()) {

// set message
tvdetail.setText("Yes I Like");
 
// display toast
 Toast.makeText(getApplicationContext(), 
                              "Thank You", Toast.LENGTH_LONG).show();
}

if (!cbaalink.isChecked() && !cblikes.isChecked()) {
tvdetail.setText("Happy To Help");// display when both check box is unchecked

}
}
};

cbaalink.setOnClickListener(checkBoxListener);
cblikes.setOnClickListener(checkBoxListener);

}

}

Step 3: Now Run Your Project: