Question

我有两个带有EditText的alertDialog，每个都应保存一个值以存储在sharedPreferences中。但似乎不是单独存储它们，而是用第二个输入值替换第一个输入值。这是我的代码：

public void IPconfig(){

        // some AlertDialog Builder codes

        sharedPreferences = getSharedPreferences("FirstText", Context.MODE_PRIVATE);
        editor = sharedPreferences.edit();

        builder.setPositiveButton("Submit", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                editor.putString("FirstText", etIP.getText().toString());
                editor.apply();
            }
        });

        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                dialogInterface.dismiss();
            }
        });

        builder.create().show();
    }

    public void MonitoringIPConfig(){

        // some AlertDialog Builder codes

        sharedPreferences = getSharedPreferences("SecondText", Context.MODE_PRIVATE);
        editor = sharedPreferences.edit();

        builder.setPositiveButton("Submit", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                editor.putString("SecondText", etIP.getText().toString());
                editor.apply();
            }
        });

        builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                dialogInterface.dismiss();
            }
        });

        builder.create().show();
    }

Answer 1

您必须致电commit()，让您在编辑器中执行的任何更改实际显示在SharedPreferences中，如Android开发者页面所示。 https://developer.android.com/reference/android/content/SharedPreferences.html

尝试以下方法：

editor.putString("FirstText", etIP.getText().toString()).commit();

如何在sharedPreferences中分别存储两个值？

1 个答案: