Android Menu action

MENU ボタンを押したときの動作を追加する

Sudoku/res/value/strings.xml

view plainprint?

1. <!--xml version="1.0" encoding="utf-8"?-->  
2. <resources>  
3.     <string name="app_name">Sudoku</string>  
4.     <string name="main_title">Android Sudoku</string>  
5.     <string name="continue_label">Continue</string>  
6.     <string name="new_game_label">New Game</string>  
7.     <string name="about_label">About</string>  
8.     <string name="about_title">About Android Sudoku</string>  
9.     <string name="about_text">\  
10.  Sudoku is a logic-based number placement puzzle.  
11.  Starting with a partially completed 9x9 grid, the  
12.  objective is to fill the grid so that each row,  
13.  each column, and each of the 3x3 boxes   
14.  (also called <i>blocks</i>) contains the digits  
15.  1 to 9 exactly once.  
16.     </string>  
17.     <string name="exit_label">Exit</string>  
18.     <string name="settings_label">Settings...</string>  
19.     <string name="settings_title">Sudoku settings</string>  
20.     <string name="settings_shortcut">s</string>  
21.     <string name="music_title">Music</string>  
22.     <string name="music_summary">Play background music</string>  
23.     <string name="hints_title">Hints</string>  
24.     <string name="hints_summary">Show hints during play</string>  
25. </resources>  

    Sudoku
    Android Sudoku
    Continue
    New Game
    About
    About Android Sudoku
    \
 Sudoku is a logic-based number placement puzzle.
 Starting with a partially completed 9x9 grid, the
 objective is to fill the grid so that each row,
 each column, and each of the 3x3 boxes 
 (also called blocks) contains the digits
 1 to 9 exactly once.
    
    Exit
    Settings...
    Sudoku settings
    s
    Music
    Play background music
    Hints
    Show hints during play

Sudoku/res/menu/menu.xml

view plainprint?

1. <!--xml version="1.0" encoding="utf-8"?-->  
2. <menu xmlns:android="http://schemas.android.com/apk/res/android">  
3.     <item  
4.         android:id="@+id/settings"  
5.         android:title="@string/settings_label"  
6.         android:alphabeticShortcut="@string/settings_shortcut"  
7.     />  
8. </menu>  

<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/settings"
        android:title="@string/settings_label"
        android:alphabeticShortcut="@string/settings_shortcut"
    />
</menu>

Sudoku/src/org/example/sudoku/Sudoku.java

view plainprint?

1. package org.example.sudoku;  
2.   
3. import android.app.Activity;  
4. import android.os.Bundle;  
5. import android.content.Intent;  
6. import android.view.View;  
7. import android.view.View.OnClickListener;  
8. import android.view.Menu;  
9. import android.view.MenuInflater;  
10. import android.view.MenuItem;  
11.   
12. public class Sudoku extends Activity implements OnClickListener{  
13.     /** Called when the activity is first created. */  
14.     @Override  
15.     public void onCreate(Bundle savedInstanceState) {  
16.         super.onCreate(savedInstanceState);  
17.         setContentView(R.layout.main);  
18.   
19.         View continueButton = this.findViewById(R.id.continue_button);  
20.         continueButton.setOnClickListener(this);  
21.         View newButton = this.findViewById(R.id.new_button);  
22.         newButton.setOnClickListener(this);  
23.         View aboutButton = this.findViewById(R.id.about_button);  
24.         aboutButton.setOnClickListener(this);  
25.         View exitButton = this.findViewById(R.id.exit_button);  
26.         exitButton.setOnClickListener(this);  
27.     }  
28.       
29.     public void onClick(View v) {  
30.         switch(v.getId()){  
31.         case R.id.about_button:  
32.             Intent i = new Intent(this, About.class);  
33.             startActivity(i);  
34.             break;  
35.         }  
36.     }  
37.   
38.     @Override  
39.     public boolean onCreateOptionsMenu(Menu menu){  
40.         super.onCreateOptionsMenu(menu);  
41.         MenuInflater inflater = getMenuInflater();  
42.         inflater.inflate(R.menu.menu, menu);  
43.         return true;  
44.     }  
45.       
46.     @Override  
47.     public boolean onOptionsItemSelected(MenuItem item){  
48.         switch (item.getItemId()){  
49.         case R.id.settings:  
50.             startActivity(new Intent(this, Settings.class));  
51.             return true;  
52.         }  
53.         return false;  
54.     }  
55. }  

package org.example.sudoku;

import android.app.Activity;
import android.os.Bundle;
import android.content.Intent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;

public class Sudoku extends Activity implements OnClickListener{
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        View continueButton = this.findViewById(R.id.continue_button);
        continueButton.setOnClickListener(this);
        View newButton = this.findViewById(R.id.new_button);
        newButton.setOnClickListener(this);
        View aboutButton = this.findViewById(R.id.about_button);
        aboutButton.setOnClickListener(this);
        View exitButton = this.findViewById(R.id.exit_button);
        exitButton.setOnClickListener(this);
    }
    
    public void onClick(View v) {
        switch(v.getId()){
        case R.id.about_button:
            Intent i = new Intent(this, About.class);
            startActivity(i);
            break;
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu){
        super.onCreateOptionsMenu(menu);
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu, menu);
        return true;
    }
    
    @Override
    public boolean onOptionsItemSelected(MenuItem item){
        switch (item.getItemId()){
        case R.id.settings:
            startActivity(new Intent(this, Settings.class));
            return true;
        }
        return false;
    }
}

Sudoku/res/xml/settings.xml

view plainprint?

1. <!--xml version="1.0" encoding="utf-8"?-->  
2. <preferencescreen xmlns:android="http://schemas.android.com/apk/res/android">  
3.     <checkboxpreference  
4.         android:key="music"  
5.         android:title="@string/music_title"  
6.         android:summary="@string/music_summary"  
7.         android:defaultValue="true" />  
8.     <checkboxpreference  
9.         android:key="hints"  
10.         android:title="@string/hints_title"  
11.         android:summary="@string/hints_summary"  
12.         android:defaultValue="true" />  
13. </checkboxpreference  
14. </checkboxpreference  
15. </preferencescreen>  

            android:key="music"
        android:title="@string/music_title"
        android:summary="@string/music_summary"
        android:defaultValue="true" />
            android:key="hints"
        android:title="@string/hints_title"
        android:summary="@string/hints_summary"
        android:defaultValue="true" />

Sudoku/src/org/example/sudoku/Settings.java

view plainprint?

1. package org.example.sudoku;  
2.   
3. import android.os.Bundle;  
4. import android.preference.PreferenceActivity;  
5.   
6. public class Settings extends PreferenceActivity {  
7.     @Override  
8.     protected void onCreate(Bundle savedInstanceState) {  
9.         super.onCreate(savedInstanceState);  
10.         addPreferencesFromResource(R.xml.settings);  
11.     }  
12. }  

package org.example.sudoku;

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

public class Settings extends PreferenceActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.settings);
    }
}

Sudoku/AndroidManifest.xml

view plainprint?

1. <!--xml version="1.0" encoding="utf-8"?-->  
2. <manifest  
3.   xmlns:android="http://schemas.android.com/apk/res/android"  
4.   package="org.example.sudoku"  
5.   android:versionCode="1"  
6.   android:versionName="1.0">  
7.     <application <brbr="">      android:icon="@drawable/icon"   
8.       android:label="@string/app_name">  
9.     <activity <brbr="">      android:name=".Sudoku"  
10.       android:label="@string/app_name">  
11.       <intent-filter>  
12.       <action android:name="android.intent.action.MAIN">  
13.       <category android:name="android.intent.category.LAUNCHER">  
14.       </category></action></intent-filter>  
15.     </activity>  
16.     <activity <brbr="">      android:name=".About"  
17.       android:label="@string/about_title"  
18.       android:theme="@android:style/Theme.Dialog">  
19.     </activity>  
20.     <activity <brbr="">      android:name=".Settings"  
21.       android:label="@string/settings_title">  
22.     </activity>  
23.   </application>  
24.   <uses-sdk android:minsdkversion="3">  
25.    
26. </uses-sdk></manifest  

  xmlns:android="http://schemas.android.com/apk/res/android"
  package="org.example.sudoku"
  android:versionCode="1"
  android:versionName="1.0">
          android:icon="@drawable/icon" 
      android:label="@string/app_name">
          android:name=".Sudoku"
      android:label="@string/app_name">
      
      
      
      
    
          android:name=".About"
      android:label="@string/about_title"
      android:theme="@android:style/Theme.Dialog">
    
          android:name=".Settings"
      android:label="@string/settings_title">
    
  
  
 

MENU ボタンを押すと、Settings... が表示されるようになった



Settings... をクリックすると、設定項目が表示される