Android View Stub




Android View Stub


  • Static View Stub Creation in Android.

  • Dynamic View Stub Creation in Android.

  • Create More View Stubs in Android.



Static View Stub Creation in Android.


Step 1 : Select File -> New -> Project -> Android Application Project (or) Android Project. Fill the forms and click "Finish" button. If you have any doubt regarding create a new project Click Here.

 Step 2 : Open res -> layout -> activity_main.xml (or) main.xml and add following code :
<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:id="@+id/textView1"
        android:textSize="20dp"
        android:textColor="#ff0000"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="Static ViewStub" />

    <ViewStub
        android:id="@+id/viewStub1"
        android:layout="@layout/subtree"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="100dp" />


</RelativeLayout>
Step 3 : Open res -> layout -> subtree.xml and add following code :

<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" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="Button" />

    <ToggleButton
        android:id="@+id/toggleButton1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="ToggleButton" />

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/toggleButton1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="CheckBox" />   
       
   
</RelativeLayout>
Step 4 : Open src -> package -> MainActivity.java and add following code :

package com.gudivada.hemanthsomaraju;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.ViewStub;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {

    ViewStub stub;
    Button b;
   
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
       
        stub = (ViewStub) findViewById(R.id.viewStub1);
        View inflated = stub.inflate();
       
        b = (Button) findViewById(R.id.button1);
       
        b.setOnClickListener(new View.OnClickListener() {
           
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
           
            Toast.makeText(getBaseContext(), "View Stub Content Created !!!",
                Toast.LENGTH_LONG).show();
        }
    });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
}
Step 5 : Open AndroidManifest.xml and add following code :
 
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.gudivada.hemanthsomaraju"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="19" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.gudivada.hemanthsomaraju.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>
 
Step 6 : Our output will be like this :
 
 
 

 
 
 
 
 

Dynamic View Stub Creation in Android.

Step 1 : Select File -> New -> Project -> Android Application Project (or) Android Project. Fill the forms and click "Finish" button. If you have any doubt regarding create a new project Click Here.

 Step 2 : Open res -> layout -> activity_main.xml (or) main.xml and add following code :
 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/rl"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/textView1"
        android:textSize="20dp"
        android:textColor="#ff0000"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="Dynamic ViewStub" />
   

</RelativeLayout>
 
Step 3 : Open res -> layout -> subtree.xml and add following code :
 
<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" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="Button" />

    <ToggleButton
        android:id="@+id/toggleButton1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="ToggleButton" />

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/toggleButton1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="50dp"
        android:text="CheckBox" />   
       
   
</RelativeLayout>
 
 
 
Step 4 : Open src -> package -> MainActivity.java and add following code :
 
 package com.gudivada.hemanthsomaraju;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewStub;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.Toast;

public class MainActivity extends Activity {
  
    RelativeLayout rl;
    ViewStub stub;
    Button b;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
      
        rl = (RelativeLayout) findViewById(R.id.rl);
      
        stub = new ViewStub(MainActivity.this);
      
        RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams
                ((int) LayoutParams.WRAP_CONTENT, (int) LayoutParams.WRAP_CONTENT);
      
        params.addRule(RelativeLayout.CENTER_HORIZONTAL);
        params.topMargin = 100;
      
        stub.setLayoutParams(params);
      
        rl.addView(stub);
      
        stub.setLayoutResource(R.layout.subtree);
      
        View inflated = stub.inflate();
      
        b = (Button) findViewById(R.id.button1);

        b.setOnClickListener(new View.OnClickListener() {
          
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
          
            Toast.makeText(getBaseContext(), "View Stub Content Created !!!",
                Toast.LENGTH_LONG).show();
        }
    });      
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
}
 
 
 
Step 5 : Open AndroidManifest.xml and add following code :
 
 <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.gudivada.hemanthsomaraju"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="19" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.gudivada.hemanthsomaraju.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>
 
 
Step 7 : Our output will be like this :
 
 
 
 
 
 

Create More View Stubs in Android.

 
  Step 1 : Select File -> New -> Project -> Android Application Project (or) Android Project. Fill the forms and click "Finish" button. If you have any doubt regarding create a new project Click Here.

 Step 2 : Open res -> layout -> activity_main.xml (or) main.xml and add following code :
 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/rl"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/textView1"
        android:textSize="20dp"
        android:textColor="#ff0000"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="30dp"
        android:text="ViewStub" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textView1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="30dp"
        android:text="ViewStub 1" />
   
    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button1"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="30dp"
        android:text="ViewStub 2" />
   
   
    <TableLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/button2"
        android:layout_marginTop="30dp"
        android:layout_centerVertical="true" >
       
        <TableRow
            android:layout_width="wrap_content"
        android:layout_height="wrap_content" >
           
            <ViewStub
            android:id="@+id/viewStub1"
            android:layout="@layout/subtree"
            android:layout_width="160dp"
            android:layout_height="wrap_content" />
   
           
            <ViewStub
            android:id="@+id/viewStub2"
            android:layout="@layout/subtree2"
            android:layout_width="160dp"
            android:layout_height="wrap_content" />
           
           
        </TableRow>
             
    </TableLayout> 
   

</RelativeLayout>
 
Step 3 : Open res -> layout -> subtree.xml and add following code :
 
 <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:id="@+id/textView1"
        android:textSize="16dp"
        android:textColor="#8B008B"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="60dp"
        android:text="ViewStub 1 Inflated Successfully !!!" />   
       
   
</RelativeLayout>
 
 
Step 4 : Open res -> layout -> subtree2.xml and add following code :
 
<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:id="@+id/textView1"
        android:textSize="16dp"
        android:textColor="#4169E1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentTop="true"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="60dp"
        android:text="ViewStub 2 Inflated Successfully !!!" />   
       
   
</RelativeLayout>
 
 
Step 5 : Open src -> package -> MainActivity.java and add following code :
 
 package com.gudivada.hemanthsomaraju;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.ViewStub;
import android.widget.Button;
import android.widget.RelativeLayout;

public class MainActivity extends Activity {
  
    RelativeLayout rl;
    ViewStub stub1, stub2;
    Button b1, b2;
    View inflated;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
      
        rl = (RelativeLayout) findViewById(R.id.rl);
      
        b1 = (Button) findViewById(R.id.button1);
        b2 = (Button) findViewById(R.id.button2);
      
        stub1 = (ViewStub) findViewById(R.id.viewStub1);
        stub2 = (ViewStub) findViewById(R.id.viewStub2);
      
        b1.setOnClickListener(new View.OnClickListener() {
          
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
          
            inflated = stub1.inflate();
        }
    });
      
        b2.setOnClickListener(new View.OnClickListener() {
          
        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
          
            inflated = stub2.inflate();
        }
    });      
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
}
 
Step 6 : Open AndroidManifest.xml and add following code :
 
 <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.gudivada.hemanthsomaraju"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="19" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.gudivada.hemanthsomaraju.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Step 7 : Our output will be like this :