Practice in Utility (1)

activity_course_detail.xml

<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="jp.techinstitute.syllabus.CourseDetail" >

    <TextView
        android:id="@+id/dateText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
 		android:textAppearance="?android:attr/textAppearanceLarge"        
        android:text="@string/hello_world" />

    <TextView
        android:id="@+id/titleText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@id/dateText"
        android:layout_below="@id/dateText"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="@string/hello_world" />

    <TextView
        android:id="@+id/teacherItemName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@id/titleText"
        android:layout_below="@id/titleText"
        android:layout_marginTop="11dp"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="講師：" />
    
    <TextView
        android:id="@+id/teacherText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/teacherItemName"
        android:layout_below="@id/titleText"
        android:layout_alignBaseline="@id/teacherItemName"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="@string/hello_world" />
    
    <TextView
        android:id="@+id/detailText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignLeft="@id/titleText"
        android:layout_below="@id/teacherItemName"
        android:layout_marginTop="11dp"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="@string/hello_world" />
    
</RelativeLayout>

activity_main.xml

<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="jp.techinstitute.syllabus.MainActivity" >

    <ListView
        android:id="@+id/listview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
         />

</RelativeLayout>

CourseDetail.java

package jp.techinstitute.syllabus;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

public class CourseDetail extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_course_detail);
		
		Intent intent = getIntent();
		String dateStr = intent.getStringExtra("date");
		String titleStr = intent.getStringExtra("title");
		String teacherStr = intent.getStringExtra("teacher");
		String detailStr = intent.getStringExtra("detail");
		
		TextView dateText = (TextView)findViewById(R.id.dateText);
		dateText.setText(dateStr);
		TextView titleText = (TextView)findViewById(R.id.titleText);
		titleText.setText(titleStr);
		TextView teacherText = (TextView)findViewById(R.id.teacherText);
		teacherText.setText(teacherStr);
		TextView detailText = (TextView)findViewById(R.id.detailText);
		detailText.setText(detailStr);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.course_detail, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// Handle action bar item clicks here. The action bar will
		// automatically handle clicks on the Home/Up button, so long
		// as you specify a parent activity in AndroidManifest.xml.
		int id = item.getItemId();
		if (id == R.id.action_settings) {
			return true;
		}
		return super.onOptionsItemSelected(item);
	}
}

lecture_row.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
    
   <TextView
        android:id="@+id/date"
        android:layout_width="56dp"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:text="8/28"
        android:textColor="@android:color/black" />
    <TextView
        android:id="@+id/title"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:textColor="@android:color/black"
        android:text="ユーティリティによる実践(1)"
        android:layout_toRightOf="@id/date" />

</RelativeLayout>

MainActivity.java

package jp.techinstitute.syllabus;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity implements OnItemClickListener {
	
	private class CourseItem {
		String date;
		String title;
		String teacher;
		String detail;
	}
	
	private List<CourseItem> itemList;
	private ItemAdapter adapter;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		itemList = new ArrayList<CourseItem>();
		adapter = new ItemAdapter(getApplicationContext(), 0, itemList);
		ListView listView = (ListView)findViewById(R.id.listview);
		listView.setAdapter(adapter);
		setCourseData();
		
		listView.setOnItemClickListener(this);
	}

	private void setCourseData() {
		CourseItem item = new CourseItem();
		item.date = "8/28";
		item.title = "ユーティリティによる実践(1)";
		item.teacher = "高橋憲一";
		item.detail = "この講義では一つのアプリとして仕上げることを目指します。";
		itemList.add(item);

		item = new CourseItem();
		item.date = "9/2";
		item.title = "ユーティリティによる実践(2)";
		item.teacher = "高橋憲一";
		item.detail = "一つのアプリを仕上げることを目指す２回目。";
		itemList.add(item);
	}
	
	private class ItemAdapter extends ArrayAdapter<CourseItem> {
		private LayoutInflater inflater;

		public ItemAdapter(Context context, int resource,
				List<CourseItem> objects) {
			super(context, resource, objects);
			inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			View view = inflater.inflate(R.layout.lecture_row, null, false);
			TextView dateView = (TextView) view.findViewById(R.id.date); 
			TextView titleView = (TextView) view.findViewById(R.id.title);
			CourseItem item = getItem(position);
			dateView.setText(item.date);
			titleView.setText(item.title);
			return view;
		}
	}
	
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// Handle action bar item clicks here. The action bar will
		// automatically handle clicks on the Home/Up button, so long
		// as you specify a parent activity in AndroidManifest.xml.
		int id = item.getItemId();
		if (id == R.id.action_settings) {
			return true;
		}
		return super.onOptionsItemSelected(item);
	}

	@Override
	public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
		CourseItem item = (CourseItem)arg0.getItemAtPosition(arg2);
		Intent intent = new Intent(this, CourseDetail.class);
		intent.putExtra("date", item.date);
		intent.putExtra("title", item.title);
		intent.putExtra("teacher", item.teacher);
		intent.putExtra("detail", item.detail);
		startActivity(intent);
	}
}