android.content.SharedPreferences.Editor#commit ( )源码实例Demo

/**
 * 保存用户名密码
 *
 * @param context
 * @param user
 * @return
 */
public static boolean saveUserInfo(Context context, User user) {
    try {
        //1.通过Context对象创建一个SharedPreference对象
        //name:sharedpreference文件的名称    mode:文件的操作模式
        SharedPreferences sharedPreferences = context.getSharedPreferences("userinfo", Context.MODE_PRIVATE);
        //2.通过sharedPreferences对象获取一个Editor对象
        Editor editor = sharedPreferences.edit();
        //3.往Editor中添加数据
        editor.putInt("userId", user.getUserId());
        editor.putString("username", user.getUsername());
        editor.putString("password", user.getPassword());
        editor.putString("sex", user.getSex());
        editor.putString("height", user.getHeight() + "");
        editor.putString("weight", user.getWeight() + "");
        //4.提交Editor对象
        editor.commit();
        return true;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}
 

/**
 * 批量存储数据
 * @param spFileName
 * @param keys
 * @param values
 */
public boolean batchSaveValues(String spFileName, String[] keys, Object... values) {
    if (Util.isEmpty(spFileName) || keys == null || values == null) {
        return false;
    }
    int keysLen = keys.length;
    int valuesLen = values.length;
    int canOptLen = Math.min(keysLen, valuesLen);
    if (canOptLen == 0) {
        return false;
    }
    Editor editor = getSpByName(spFileName).edit();
    for(int i = 0; i < canOptLen ; i++) {
        String key = keys[i];
        if (Util.isEmpty(key)) {
            continue;
        }
        editorPutValues(editor,key,values[i]);
    }
    return editor.commit();
}
 

/**
 * 批量移除喜好配置中的keys
 * @param spFileName
 * @param spKeys
 */
public boolean batchRemoveKeys(String spFileName, String... spKeys) {
    if (spKeys != null && spKeys.length > 0) {
        Editor spFileEditor = getEditor(spFileName);
        for (String toRemoveKey : spKeys) {
            spFileEditor.remove(toRemoveKey);
        }
        return spFileEditor.commit();
    }
    return false;
}
 

public static void putStringProcess(String key, String value) {

    SharedPreferences sharedPreferences = LeisureReadApp.getAppContext()
        .getSharedPreferences("preference_mu", Context.MODE_MULTI_PROCESS);
    Editor editor = sharedPreferences.edit();
    editor.putString(key, value);
    editor.commit();
  }
 

/**
 * �����ť
 * 
 * @param view
 */
public void gxlogin(View view) {
	// System.out.println("�����ť�ˣ��洢��������");
	String qq = etQQ.getText().toString().trim();
	String pwd = etPwd.getText().toString().trim();
	if (TextUtils.isEmpty(qq) || TextUtils.isEmpty(pwd)) {
		Toast.makeText(this, "QQ�Ż������벻��Ϊ�գ�����", 0).show();
		return;
	}

	// �û��Ƿ�ѡ����ס����
	boolean isChecked = cbRem.isChecked();
	if (isChecked) {
		// �洢����

		// 2. ��ȡ�༭��Editor
		Editor edit = mSp.edit();
		// 3. �ñ༭���洢����
		edit.putString("qq", qq);
		edit.putString("mm", pwd);
		// 4. ��Ҫ����ס�ύ����
		edit.commit();

		Toast.makeText(this, "���ݴ洢�ɹ���", 0).show();
	} else {
		System.out.println("���洢����");
	}

}
 

/**
 * 清空 SharedPreferences 中 Token信息。
 * 
 * @param context 应用程序上下文环境
 */
public static void clear(Context context) {
    if (null == context) {
        return;
    }
    
    SharedPreferences pref = context.getSharedPreferences(PREFERENCES_NAME, Context.MODE_APPEND);
    Editor editor = pref.edit();
    editor.clear();
    editor.commit();
}
 

/**
 * 清空数据
 */
public static void reset(final Context ctx) {

  Editor edit = PreferenceManager.getDefaultSharedPreferences(ctx).edit();
  edit.clear();
  edit.commit();
}
 

static public void writeDefaultShortcuts(Context context)
{
    final SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
    Editor editor = sp.edit();
    for( DefineShortcut sd : TBL_SHORTCUT )
    {
        String key = KEY_SHORTCUT + sd.key;
        if ( !sp.contains(key) ){
            editor.putString(key, Integer.toString(sd.function) );
        }
    }
    editor.commit();
}
 

public static void putValue(Context context, String key, boolean value) {

		Editor sp = PreferenceManager.getDefaultSharedPreferences(context)
				.edit();
		sp.putBoolean(key, value);
		sp.commit();
	}
 

@TargetApi(9)
public boolean save(Editor editor) {
    if (VERSION.SDK_INT < 9) {
        return editor.commit();
    }
    editor.apply();
    return true;
}
 

public static void setDisplayLimitPreference(Context context, int value) {
    SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
    Editor editor = sharedPrefs.edit();

    editor.putString(context.getText(R.string.pref_display_limit).toString(), Integer.toString(value));

    editor.commit();
}
 

/**
 * 清空 SharedPreferences 中 Token信息。
 * 
 * @param context 应用程序上下文环境
 */
public static void clear(Context context) {
    if (null == context) {
        return;
    }
    
    SharedPreferences pref = context.getSharedPreferences(PREFERENCES_NAME, Context.MODE_APPEND);
    Editor editor = pref.edit();
    editor.clear();
    editor.commit();
}
 

public static boolean remove(Context context, String fileName, String key) {
    SharedPreferences sp = context.getSharedPreferences(fileName, Context.MODE_PRIVATE);
    Editor editor = sp.edit();
    editor.remove(key);
    return editor.commit();
}
 

public static boolean putInt(String key, int value)
{
	Editor editor = edit();
	editor.putInt(key, value);
	return editor.commit();
}
 

public static void clearPreference(Context context,
		final SharedPreferences p) {
	final Editor editor = p.edit();
	editor.clear();
	editor.commit();
}
 

public static boolean clearAll(Context context, String fileName) {
    SharedPreferences sp = context.getSharedPreferences(fileName, Context.MODE_PRIVATE);
    Editor editor = sp.edit();
    editor.clear();
    return editor.commit();
}
 

public void setDataNum(String num) {
    Editor editor = context.getSharedPreferences(SETTINGS, 4).edit();
    editor.putString("dataNum", num);
    editor.commit();
}
 

private void commit(final Editor ed) {
	if (!ed.commit()) {
		throw new IllegalStateException("Failed to commit new SharedPreferences value");
	}
}
 

public static void putString(Context context, String key, String value) {
    SharedPreferences sharedPreferences = getDefaultSharedPreferences(context);
    Editor edit = sharedPreferences.edit();
    edit.putString(key, value);
    edit.commit();
}
 

public void colorChanged(int fg, int bg) {
    final SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(SettingsActivity.this);
    Editor editor = sp.edit();
    editor.putInt( KEY_UNDERLINE_COLOR, fg );
    editor.commit();
}