利用程式碼更改文字顏色, setTextColor()

實例:

package com.AndroidText;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class AndroidTextActivity extends Activity {
 
 TextView text;
 Button buttonChangeTextColor;
 
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        text = (TextView)findViewById(R.id.text);
        buttonChangeTextColor = (Button)findViewById(R.id.changetextcolor);
     
        buttonChangeTextColor.setOnClickListener(new Button.OnClickListener(){

   public void onClick(View arg0) {
    // TODO Auto-generated method stub
    
    /*
     * setTextColor(
     *  ((alpha << 24) & 0xFF000000)
     *  + ((red << 16) & 0x00FF0000)
     *  + ((green << 8) & 0x0000FF00)
     *  + (blue & 0x000000FF));
     */

    
    //setTypeface for TextView
    text.setTextColor(0xFF008080); 
    //setTypeface for Button
    buttonChangeTextColor.setTextColor(0xFFFF0000);
   }});
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:id="@+id/text"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
<Button
    android:id="@+id/changetextcolor"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="Change Text Color"
    />
</LinearLayout>