Implement vertical TextView by calling setRotation()

API Level 11 provide setRotation(float rotation) method to rotate a View. We can call the method of TextView object to make it display in vertical.

Layout:

<LinearLayout 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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello"
        android:textStyle="bold|italic"
        android:layout_gravity="center_horizontal"
        android:background="#B0B0B0" />
    <LinearLayout 
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal">
        
        <TextView
            android:id="@+id/verticaltextview"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Android-er"
            android:textStyle="bold"
            android:textColor="#00FF00"
            android:layout_gravity="center"
            android:background="#808080" />
        <TextView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="http://android-er.blogspot.com/"
            android:textStyle="bold"
            android:textColor="@android:color/white"
            android:gravity="center"
            android:background="#505050" />
        
    </LinearLayout>

</LinearLayout>

Java code, call setRotation() to display the TextView (verticalTextView) in vertical.

package com.example.androidtextview;

import android.os.Bundle;
import android.app.Activity;
import android.widget.TextView;

public class MainActivity extends Activity {
 
 TextView verticalTextView;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  
  verticalTextView = (TextView)findViewById(R.id.verticaltextview);
  verticalTextView.setRotation(90);
 }


}

remark: Have to modify AndroidManifest.xml to set android:minSdkVersion="11" or higher.