如何在Android中使用共享偏好计数器？

对不起，因为我的3个简单问题，但我需要你的帮助。我想有一个计数器（使用shared preference）在我的应用程序是这样的：如何在Android中使用共享偏好计数器？

在第一，有2个按钮，START和RESET。如果RESET是点击，计数器从0开始。另外，如果点击了START，计数器将从共享首选项数据开始。
开始计数
上一次，我想保存计数器的份额偏好。（但我不知道它最好保存在BACK btn或CLICK btn中）

我的问题是在共享偏好部分。请帮我，我该怎么做？非常感谢！

编辑：这是我的代码

public class CountActivity extends Activity { 
private Button click; 
private int count,savedCount; 
private String count_text; 

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.counting); 

    click= (Button) findViewById(R.id.vow_counting); 
    final Typeface typeface = Typeface.createFromAsset(getAssets(),"fonts/Far_Homa.ttf"); 

    final SharedPreferences sharedPreferences=getSharedPreferences("counters", Context.MODE_PRIVATE); 
    final SharedPreferences.Editor editor=sharedPreferences.edit(); 

    AlertDialog.Builder fBuilder=new AlertDialog.Builder(VowCountActivity.this); 

    fBuilder.setMessage("please choose"); 
    fBuilder.setCancelable(false); 

    fBuilder.setPositiveButton("start from beging", new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialogInterface, int i) { 
      count = sharedPreferences.getInt("counter", 0); 

      click.setText("0"); 
      click.setTypeface(Typeface.createFromAsset(getAssets(),"fonts/Far_Homa.ttf")); 
      dialogInterface.cancel(); 
     } 
    }); 

    fBuilder.setNegativeButton("countinue", new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialogInterface, int i) { 
      count = sharedPreferences.getInt("counter",savedCount); 

      editor.putInt("counter",savedCount).commit(); 
      dialogInterface.cancel(); 
     } 
    }); 

    fBuilder.show(); 



    click.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      count++; 
      count_text=Integer.toString(count); 
      click.setText(count_text); 
      click.setTypeface(typeface); 
      savedCount = sharedPreferences.getInt("savedCounter", count); 
      vibrate(500); 
     } 
    }); 
} 


// vibrate 
public void vibrate(int duration) { 
    Vibrator vibs = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE); 
    vibs.vibrate(duration); 
}

来源

2016-02-16 Mina Dahesh

你能告诉我一个例子，你做了什么......我上投...好多人会下来-vote，如果你不显示你所做的..... –

非常感谢所有帮助。我阅读所有答案，并做下面的事情。现在我有两个问题： –

1-我怎样才能在SP中保存“count”，并在COUNTENTUE btn中继续？ –

您应使用此代码，yoursL

的istear

public class CountActivity extends Activity { 
private Button click; 
private int count,savedCount; 
private String count_text; 

public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.counting); 

    click= (Button) findViewById(R.id.vow_counting); 
    final Typeface typeface = Typeface.createFromAsset(getAssets(),"fonts/Far_Homa.ttf"); 

    final SharedPreferences sharedPreferences=getSharedPreferences("counters", Context.MODE_PRIVATE); 
    final SharedPreferences.Editor editor=sharedPreferences.edit(); 

    AlertDialog.Builder fBuilder=new AlertDialog.Builder(VowCountActivity.this); 

    fBuilder.setMessage("choose"); 
    fBuilder.setCancelable(false); 

    fBuilder.setPositiveButton(firstا", new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialogInterface, int i) { 
      count =0; 
      savedCount=0; 
      click.setText("0"); 
      click.setTypeface(Typeface.createFromAsset(getAssets(),"fonts/Far_Homa.ttf")); 
      dialogInterface.cancel(); 
     } 
    }); 

    fBuilder.setNegativeButton("countinue", new DialogInterface.OnClickListener() { 
     public void onClick(DialogInterface dialogInterface, int i) { 
      count = sharedPreferences.getInt("counter",savedCount); 
      count_text=Integer.toString(count); 
      click.setText(count_text); 
      click.setTypeface(Typeface.createFromAsset(getAssets(), "fonts/Far_Homa.ttf")); 
      dialogInterface.cancel(); 
     } 
    }); 

    fBuilder.show(); 



    click.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      count++; 
      savedCount=count; 
      count_text=Integer.toString(count); 
      click.setText(count_text); 
      click.setTypeface(typeface); 
      editor.putInt("counter",savedCount).commit(); 
      savedCount = sharedPreferences.getInt("savedCounter", count); 

     } 
    }); 
}

来源

2016-02-19 16:21:52

使用

 SharedPreferences preferences = getSharedPreferences("PROFILE", Context.MODE_PRIVATE); 
     SharedPreferences.Editor edit = preferences.edit(); 
     edit.putString("yourPreferenceName", yourPreferenceObject); 
     edit.commit();

保存偏好

和

 SharedPreferences preferences = this.getSharedPreferences("PROFILE", Context.MODE_PRIVATE); 
     String string = preferences.getString("yourPreferenceName", "defaultReturn");

接收您的sharedPreferences 不用彷徨和。把返回类型为

来源

2016-02-16 10:30:03 Bliss

要获得启动按钮值可以为共享偏好

public static int getIntPreferences(String key) { 
    SharedPreferences settings = context.getSharedPreferences(SP_FILE_NAME, 0); 
    return settings.getInt(key, 0); 
}

定义此功能，并具有价值现在重置您的共享偏好珍惜你可以使用下面的函数

public static void updatePreferences(String key, int value) { 
    SharedPreferences settings = context.getSharedPreferences(SP_FILE_NAME, Context.MODE_PRIVATE); 
    SharedPreferences.Editor editor = settings.edit(); 
    editor.putInt(key, value); 
    editor.commit(); 

}

来源

2016-02-16 10:30:59

试试这个：

SharedPreferences preferences = getSharedPreferences("counterStat", Context.MODE_PRIVATE); 
SharedPreferences.Editor edit = preferences.edit(); 

      btnStart.setOnClickListener(new View.OnClickListener() { 
       @Override 
       public void onClick(View v) { 
       int counter = preferences.getInt("counter", 0); 
      // counter = counter + 1; start counting 
       edit.putInt("counter", counter).commit(); 
       } 
      }); 

      btnReset.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 
       edit.putInt("counter", 0).commit(); 
      } 
      });

对话框回：

int counter = preferences.getInt("counter", 0); 
    edit.putInt("savedCounter", counter).commit();

对话框取消：

int counter = preferences.getInt("counter", 0); 
edit.putInt("savedCounter", counter).commit(); 
edit.putInt("counter", 0).commit();

然后可以使用：INT savedCounter = preferences.getInt（ “savedCounter”，0）;任何地方

来源

2016-02-16 10:42:10

以下是如何将条目添加到SharedPrefs并保存到磁盘。

SharedPreferences settings = getSharedPreferences("my_prefs", 0); 
SharedPreferences.Editor editor = settings.edit(); 
editor.putString("name", "Adam"); 
editor.commit();

下面是如何读取SharedPrefs保存的值。

SharedPreferences settings = getSharedPreferences("my_prefs", 0); 
String name = settings.getString("name", null);

来源

2016-02-16 11:24:34

如何在Android中使用共享偏好计数器？

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