将boolean和int保存到sharedPrefs时遇到问题

我试图为我的Hangman游戏创建一个endgame活动，并且我有一些提交的值比字符串更麻烦。将boolean和int保存到sharedPrefs时遇到问题

这是我的主要活动：

package com.assignment.hangman; 
import android.app.Activity; 


public class HangmanActivity extends Activity { 
    public static final String GAME_PREFERENCES = "Game Preferences"; 
    public static final String GAME_LOGIC = "Game Logic"; 
    public static final String GAME_LOGIC_GUESS = "Guessed letter"; 
    public static final String GAME_LOGIC_SCORE_STRING = "Unknow score"; 
    public static final boolean GAME_LOGIC_WIN_LOOSE = false; 
}

我得到sharedprefs这样的：

mGameSettings = getSharedPreferences("GAME_PREFERENCES", Context.MODE_PRIVATE);

而这正是提交更改到编辑器时出现错误：

public void finishGame() { 
     //Commit different game variables so they can be used in the end game activity 
     Editor editor = mGameSettings.edit(); 
     editor.putString(GAME_LOGIC_SCORE_STRING, (tries + " of " + numberOfLives + " used")); 
     if (tries != numberOfLives){ 
      editor.putBoolean("GAME_LOGIC_WIN_LOOSE", true); 
     } 
     editor.commit(); 
     // Launch end game Activity 
     startActivity(new Intent(HangmanGameActivity.this, HangmanEndActivity.class)); 
    }

而改变活动后我重新获取这样的值：

 if (mGameSettings.contains("GAME_LOGIC_WIN_LOOSE")) { 
     Log.i(GAME_DEBUG, "Succes"); 
     boolean winLoose = mGameSettings.getBoolean("GAME_LOGIC_WIN_LOOSE", false); 
     if (winLoose) { 
      winLooseView.setText(R.string.you_win); 
     } else { 
      winLooseView.setText(R.string.you_loose); 
    } 
    }

但不知何故只有字符串被正确提交。我猜布尔值会恢复为默认值false。

有人能帮我解释一下吗？

来源

2010-12-11 SQDK

如果您只想将数据从一个活动移动到另一个活动，我会将其附加到意图。写入共享内存意味着访问电话存储，这真的很慢。

你可以做它用这种方式：

Intent intent = new Intent(HangmanGameActivity.this, HangmanEndActivity.class); 
intent.putExtra(GAME_LOGIC_SCORE_STRING, tries + " of " + numberOfLives + " used"): 
intent.putExtra("GAME_LOGIC_WIN_LOOSE", true); 
startActivity(intent);

你会做EndActivity：

Intent intent = getIntent(); 
String gameString = intent.getStringExtra(GAME_LOGIC_SCORE_STRING, "default value"); 
boolean win = intent.getBooleanExtra(GAME_LOGIC_WIN_LOOSE, false);

来源

2010-12-11 11:05:43 Janusz

哇，这很容易。非常感谢快速回复。 – SQDK 2010-12-11 11:12:28

将boolean和int保存到sharedPrefs时遇到问题

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