- Add A ListView Viewgroup In MainActivity.Xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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=".MainActivity">
<ListView
android:id="@+id/listView"
android:listSelector="@color/colorAccent"
android:dividerHeight="2dp"
android:divider="#ddd"
android:layout_width="match_parent"
android:layout_height="match_parent"></ListView>
</LinearLayout>
2. Design ListView Item. Create A New Layout Resource File And Design How To Show ListView Item. mylist.xml
<?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">
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Medium Text"
android:textStyle="bold"
android:textAppearance="?android:attr/textAppearanceMedium"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:padding="2dp"
android:textColor="#4d4d4d"
/>
</LinearLayout>
3. Add Your List Item To Strings.xml File.
<resources>
<string name="app_name">ListViewFromArray</string>
<string-array name="array_technology">
<item>Android</item>
<item>Java</item>
<item>Php</item>
<item>Hadoop</item>
<item>Sap</item>
<item>Python</item>
<item>Ajax</item>
<item>C++</item>
<item>Ruby</item>
<item>Rails</item>
<item>.Net</item>
<item>Perl</item>
</string-array>
</resources>
package com.example.oleetech.listviewfromarray;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
ListView listView;
TextView textView;
String[] listItem;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView=(ListView)findViewById(R.id.listView);
textView=(TextView)findViewById(R.id.textView);
listItem = getResources().getStringArray(R.array.array_technology);
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
R.layout.mylist,R.id.textView, listItem);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long l) {
// TODO Auto-generated method stub
String value=adapter.getItem(position);
Toast.makeText(getApplicationContext(),value,Toast.LENGTH_SHORT).show();
}
});
}
}
4. Go To MainActivity.java And Follow Step
- Define ListView Item Variable And Find It By Findviewbyid . .
ListView listView;
TextView textView;
String[] listItem;
- Get String Item As Array . listItem = getResources().getStringArray(R.array.array_technology);
- Define A Adapter . first Parameter Activity Name For Display Adapter View.2nd parameter .Listitem View Resorce file Before Design.3rd item Listitem View Resorce file View Id. 4th Parameter Array List .
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, android.R.id.textView, listItem);
- Set Adapter To List View. listView.setAdapter(adapter);
- Set On setOnItemClickListener Method To Click Item
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView adapterView, View view, int position, long l) {
// TODO Auto-generated method stub
String value=adapter.getItem(position);
Toast.makeText(getApplicationContext(),value,Toast.LENGTH_SHORT).show();
}
});
OLEETECH 