viernes, 26 de abril de 2013

Android Coding: Implement custom title



Implement custom title

App with custom title
App with custom title


Create /res/layout/custom_title.xml, to define the layout of your custom title bar.
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<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:orientation="horizontal" >
 
 <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher"/>
    <TextView
        android:id="@+id/titletext"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="@android:color/white"
        android:textStyle="italic|bold"
        android:text="http://android-coding.blogspot.com/" />
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher"/>
 
</LinearLayout>


MainActivity.java
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package com.example.androidcustomtitle;
 
import android.os.Bundle;
import android.app.Activity;
import android.view.Window;
import android.widget.TextView;
import android.widget.Toast;
 
public class MainActivity extends Activity {
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
 
  boolean customTitleSupported = requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
   
  setContentView(R.layout.activity_main);
   
  if(customTitleSupported){
   getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
   Toast.makeText(getApplicationContext(),
     "Custom Title Applied",
     Toast.LENGTH_LONG).show();
    
   //Set title text programmatically
   TextView titleText = (TextView)findViewById(R.id.titletext);
   titleText.setText("Android-Coding");
    
  }else{
   Toast.makeText(getApplicationContext(),
     "FEATURE_CUSTOM_TITLE not supported!",
     Toast.LENGTH_LONG).show();
  }
 
 }
 
}


Also modify AndroidManifest.xml to use style without title features on android:theme; otherwise "android.util.AndroidRuntimeException: You cannot combine custom titles with other title features" will be thrown. "@android:style/Theme.Light" and "@android:style/Theme.Black" have been tested work ok.
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.androidcustomtitle"
    android:versionCode="1"
    android:versionName="1.0" >
 
    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="17" />
 
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.Light" >
        <activity
            android:name="com.example.androidcustomtitle.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>


Android Coding: Implement custom title
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