電話帳アプリ | AndroidBasic卒業生作成アプリ

この記事は2014年1月31日に書かれたものです。内容が古い可能性がありますのでご注意ください。


  • activity_main.xml
  • <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="vertical"
        android:padding="15dp"
        tools:context=".MainActivity" >
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="9"
            android:gravity="top"
            android:orientation="horizontal" >
    
            <ListView
                android:id="@+id/ListView1"
                android:layout_width="match_parent"
                android:layout_height="match_parent" >
            </ListView>
        </LinearLayout>
    
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="48dp"
            android:layout_weight="1"
            android:gravity="bottom"
            android:orientation="horizontal" >
    
            <Button
                android:id="@+id/entry"
                android:layout_width="match_parent"
                android:layout_height="48dp"
                android:layout_weight="1"
                android:text="新規 " />
    
            <Button
                android:id="@+id/delete"
                android:layout_width="match_parent"
                android:layout_height="48dp"
                android:layout_weight="1"
                android:text="データ削除" />
        </LinearLayout>
    
    </LinearLayout>
    
  • 登録画面
    • EntryActivity.java
    • package com.example.contactlistsample;
      
      import android.app.Activity;
      import android.content.ContentValues;
      import android.content.Intent;
      import android.database.sqlite.SQLiteDatabase;
      import android.os.Bundle;
      import android.view.View;
      import android.view.View.OnClickListener;
      import android.widget.Button;
      import android.widget.EditText;
      import android.widget.Toast;
      
      public class EntryActivity extends Activity implements OnClickListener {
      
      	private MyOpenHelper helper = new MyOpenHelper(this);
      
      	private EditText nameEdit;
      	private EditText numberEdit;
      	private EditText addressEdit;
      
      	private String tableName = "person";
      	private SQLiteDatabase db;
      
      	@Override
      	protected void onCreate(Bundle savedInstanceState) {
      		super.onCreate(savedInstanceState);
      		setContentView(R.layout.activity_entry);
      
      		db = helper.getWritableDatabase();
      
      		Button button = (Button) findViewById(R.id.button1);
      		button.setOnClickListener(this);
      	}
      
      	@Override
      	public void onClick(View v) {
      
      		nameEdit = (EditText) findViewById(R.id.editName);
      		numberEdit = (EditText) findViewById(R.id.editNumber);
      		addressEdit = (EditText) findViewById(R.id.editAddress);
      
      		String name = nameEdit.getText().toString();
      		String number = numberEdit.getText().toString();
      		String address = addressEdit.getText().toString();
      
      		if (name.equals("")) {
      			Toast.makeText(this, "名前を入力してください。", Toast.LENGTH_SHORT).show();
      		} else if (number.equals("")) {
      			Toast.makeText(this, "電話番号を入力してください。", Toast.LENGTH_SHORT).show();
      		} else {
      			ContentValues insert = new ContentValues();
      			insert.put("name", name);
      			insert.put("number", number);
      			insert.put("address", address);
      			db.insert(tableName, name, insert);
      
      			Toast.makeText(this, name + "さんを登録しました。", Toast.LENGTH_SHORT)
      					.show();
      		}
      
      		nameEdit.getEditableText().clear();
      		numberEdit.getEditableText().clear();
      
      		Intent backIntent = new Intent(EntryActivity.this, MainActivity.class);
      		startActivity(backIntent);
      	}
      }
      
    • activity_entry.xml
    • <?xml version="1.0" encoding="utf-8"?>
      <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:orientation="vertical" >
      
          <TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="名前" />
      
          <EditText
              android:id="@+id/editName"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:ems="10"
              android:inputType="textPersonName" >
      
              <requestFocus />
          </EditText>
      
          <TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="電話番号" />
      
          <EditText
              android:id="@+id/editNumber"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:ems="10"
              android:inputType="phone" />
      
          <TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="メールアドレス" />
      
          <EditText
              android:id="@+id/editAddress"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:ems="10"
              android:inputType="textEmailAddress" />
      
          <Button
              android:id="@+id/button1"
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="登録" />
      
      </LinearLayout>
      
  • 項目の詳細画面
    • DetailActivity.java
    • package com.example.contactlistsample;
      
      import android.app.Activity;
      import android.content.Intent;
      import android.database.Cursor;
      import android.database.sqlite.SQLiteDatabase;
      import android.net.Uri;
      import android.os.Bundle;
      import android.view.View;
      import android.view.View.OnClickListener;
      import android.widget.Button;
      import android.widget.TextView;
      
      public class DetailActivity extends Activity implements OnClickListener {
      
      	private MyOpenHelper helper = new MyOpenHelper(this);
      
      	private TextView nameTextView;
      	private TextView numberTextView;
      	private TextView addressTextView;
      
      	private String tableName = "person";
      	private SQLiteDatabase db;
      	private long id;
      
      	private Cursor c;
      
      	@Override
      	protected void onCreate(Bundle savedInstanceState) {
      		super.onCreate(savedInstanceState);
      		setContentView(R.layout.activity_detail);
      
      		db = helper.getReadableDatabase();
      
      		Intent intent = getIntent();
      		id = intent.getLongExtra("number", 0l);
      
      		c = db.query(tableName, new String[] { PersonTable.NAME,
      				PersonTable.NUMBER, PersonTable.ADDRESS }, "_id = ?",
      				new String[] { String.valueOf(id) }, null, null, null);
      
      		nameTextView = (TextView) findViewById(R.id.textName);
      		numberTextView = (TextView) findViewById(R.id.textNumber);
      		addressTextView = (TextView) findViewById(R.id.textAddress);
      
      		c.moveToFirst();
      
      		nameTextView.setText(c.getString(c.getColumnIndex(PersonTable.NAME)));
      		numberTextView
      				.setText(c.getString(c.getColumnIndex(PersonTable.NUMBER)));
      		addressTextView.setText(c.getString(c
      				.getColumnIndex(PersonTable.ADDRESS)));
      
      		Button editB = (Button) findViewById(R.id.editButton);
      		Button callB = (Button) findViewById(R.id.callButton);
      		Button mailB = (Button) findViewById(R.id.mailButton);
      
      		editB.setOnClickListener(this);
      		callB.setOnClickListener(this);
      		mailB.setOnClickListener(this);
      
      	}
      
      	@Override
      	public void onClick(View v) {
      		switch (v.getId()) {
      		case R.id.editButton:
      			Intent editIntent = new Intent(DetailActivity.this,
      					EditActivity.class);
      			editIntent.putExtra("id", id);
      			startActivity(editIntent);
      			break;
      
      		case R.id.callButton:
      			Uri uriCall = Uri.parse("tel:"
      					+ c.getString(c.getColumnIndex(PersonTable.NUMBER)));
      			Intent callIntent = new Intent(Intent.ACTION_CALL, uriCall);
      			startActivity(callIntent);
      			break;
      
      		case R.id.mailButton:
      			Intent mailIntent = new Intent(Intent.ACTION_SEND);
      			mailIntent.setType("text/plain");
      			mailIntent.putExtra(Intent.EXTRA_EMAIL, new String[] { c
      					.getString(c.getColumnIndex(PersonTable.ADDRESS)) });
      			startActivity(mailIntent);
      			break;
      
      		default:
      			break;
      		}
      	}
      }
      
    • activity_detail.xml
    • <?xml version="1.0" encoding="utf-8"?>
      <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:orientation="vertical"
          android:padding="15dp" >
      
          <TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="名前" />
      
          <TextView
              android:id="@+id/textName"
              android:layout_width="match_parent"
              android:layout_height="48dp" />
      
          <TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="電話番号" />
      
          <TextView
              android:id="@+id/textNumber"
              android:layout_width="match_parent"
              android:layout_height="48dp" />
      
          <TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="メールアドレス" />
      
          <TextView
              android:id="@+id/textAddress"
              android:layout_width="match_parent"
              android:layout_height="48dp" />
      
          <LinearLayout
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:orientation="horizontal" >
      
              <Button
                  android:id="@+id/editButton"
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:layout_weight="1"
                  android:text="編集" />
      
              <Button
                  android:id="@+id/callButton"
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:layout_weight="1"
                  android:text="電話" />
      
              <Button
                  android:id="@+id/mailButton"
                  android:layout_width="match_parent"
                  android:layout_height="wrap_content"
                  android:layout_weight="1"
                  android:text="メール" />
          </LinearLayout>
      
      </LinearLayout>
      
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