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Android Fragment及Activity 中使用sharedpreferences

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2018-10-29 Mark Chang

String msg = "test";

SharedPreferences sharedPreferences = getSharedPreferences("data" , MODE_PRIVATE);

//取得SharedPreferences ， 丟入的參數為("名稱" , 存取權限)

sharedPreferences.edit().putString("MSG" , msg).apply();

SharedPreferences sharedPreferences = getSharedPreferences("data" , MODE_PRIVATE);

//取出資料， 丟入的參數為(key , 若是沒值，預設為多少)

showBMI.setText("上回儲存結果:" + "\r\n\n" + sharedPreferences.getString("MSG" , "..."));

String msg = "test";

SharedPreferences pref = getActivity().getPreferences(Context.MODE_PRIVATE);

SharedPreferences.Editor edt = pref.edit();

edt.putString("MSG" , msg);

edt.commit();

SharedPreferences pref = getActivity().getPreferences(Context.MODE_PRIVATE);

showBMI.setText("上回儲存結果:" + "\r\n\n" + pref.getString("MSG", "..."));