Development of an Android App - MyTwitter Part 2

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello World, MyTwitter!</string>
    <string name="app_name">MyTwitter</string>
    <string name="labelWhatsHappening">Whats Happening?</string>
    <string name="hintStatus">Enter 160 characters status update</string>
    <string name="labelUpdate">Update</string>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="Title">
  <item name="android:textSize">30sp</item>
  <item name="android:typeface">serif</item>
<item name="android:textColor">@color/title</item>
</style>
<style name="Button">
      <item name="android:textSize">20sp</item>
      <item name="android:padding">10px</item>
</style>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<resources>
	<color
		name="title">#FF00</color>
<color name="transparentBlue">#60FF</color>
</resources>

<?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"
	android:background="@drawable/background">
	<TextView
		android:layout_width="fill_parent"
		android:layout_height="wrap_content"
		android:text="@string/labelWhatsHappening"
		android:textSize="30sp"
		android:gravity="center"
		android:textStyle="bold" />
	<EditText
		android:id="@+id/textStatus"
		android:typeface="serif"
		android:textColorHint="#E6E6E6"
		android:textColor="#E6E6E6"
		android:maxLength="160"
		android:hint="@string/hintStatus"
		android:background="@color/transparentBlue"
		android:layout_width="fill_parent"
		android:layout_height="100px"
		android:layout_margin="5px"
		android:padding="5px"
		android:minLines="4"></EditText>
	<Button
		android:layout_height="wrap_content"
		android:id="@+id/buttonUpdate"
		android:text="@string/labelUpdate"
		android:layout_width="fill_parent"
		android:background="@drawable/buttonbg"></Button>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen
	xmlns:android="http://schemas.android.com/apk/res/android">
	<EditTextPreference
		android:summary="Please provide user name"
		android:title="User Name"
		android:key="username"></EditTextPreference>
	<EditTextPreference
		android:summary="Please enter your password"
		android:title="Password" android:password="true"
		android:key="password"></EditTextPreference>
</PreferenceScreen>

    @Override
    public boolean onCreateOptionsMenu(Menu menu){
      MenuInflater inflater = getMenuInflater();
      inflater.inflate(R.menu.menu, menu);
      return true;
    }

package com.example;

import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import winterwell.jtwitter.Twitter;

public class MyTwitter extends Activity implements OnClickListener{

    static final String TAG = "MyTwitter";
    
    Twitter twitter;
    SharedPreferences prefs;
    
    Button buttonUpdate;
    Button buttonPrefs;
    EditText textStatus;
    

    @Override
    public void onClick(View src) {
      
      String status = textStatus.getText().toString();
      
      Log.d(TAG, "Clicked on "+ status);
      
      // Toast
      Toast.makeText(this, textStatus.getText(), Toast.LENGTH_LONG).show();
     
      // set twitter status 
      twitter.setStatus(status);
      
      //reset status string
      textStatus.setText("");
    }
    /** Called when the activity is first created. */
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        // find views by id
        buttonUpdate = (Button) findViewById(R.id.buttonUpdate);
        textStatus = (EditText) findViewById(R.id.textStatus);
        
        // Add listener
        buttonUpdate.setOnClickListener(this);

        //Initialize twitter
        prefs = PreferenceManager.getDefaultSharedPreferences(this);
        String username = prefs.getString("username", "n/a");
        String password = prefs.getString("password", "n/a");
        if (username != null && password != null){
          twitter = new Twitter(username, password);
        }
        
        
    }
    
    @Override
    public boolean onCreateOptionsMenu(Menu menu){
      MenuInflater inflater = getMenuInflater();
      inflater.inflate(R.menu.menu, menu);
      return true;
    }
    
    // Called when menu item is selected //
    @Override
    public boolean onOptionsItemSelected(MenuItem item){
      
      switch(item.getItemId()){
      
      case R.id.menuPrefs:
        // Launch Prefs activity
        Intent i = new Intent(MyTwitter.this, Prefs.class);
        startActivity(i);
        Log.d(TAG, "MenuPrefs starting Prefs");
        Toast.makeText(MyTwitter.this, textStatus.getText(), Toast.LENGTH_LONG).show();
        break;
        
      }    
      return true;
    }
}

package com.example;

import android.os.Bundle;
import android.preference.PreferenceActivity;

public class Prefs extends PreferenceActivity{

  @Override
  public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    
    addPreferencesFromResource(R.xml.prefs);
  }

}

<?xml version="1.0" encoding="utf-8"?>
<manifest
	xmlns:android="http://schemas.android.com/apk/res/android"
	android:versionCode="1"
	android:versionName="1.0"
	package="com.example">
	<application
		android:icon="@drawable/twitter_icon"
		android:label="@string/app_name">
		<activity
			android:name=".MyTwitter"
			android:label="@string/app_name">
			<intent-filter>
				<action android:name="android.intent.action.MAIN" />
				<category android:name="android.intent.category.LAUNCHER" />
			</intent-filter>
		</activity>
		<activity android:name="Prefs"></activity>
	</application>
	<uses-sdk android:minSdkVersion="3" />

	<uses-permission android:name="android.permission.INTERNET"></uses-permission>
</manifest>