地狱的人，我喜欢你的想法： - ）

Hell man, I like your idea :-)

这仅仅是同@ MH的答案，但更简洁。

This is just same as @MH's answer, but more concise.

我用切换按钮测试，而不是开关。

package android.dumdum;

import android.content.Context;
import android.preference.Preference;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.ToggleButton;

public class TogglePreference extends Preference {

    public TogglePreference(Context context) {
        super(context);
    }

    public TogglePreference(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public TogglePreference(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public View getView(View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = new LinearLayout(getContext());
            ((LinearLayout) convertView)
                    .setOrientation(LinearLayout.HORIZONTAL);

            TextView txtInfo = new TextView(getContext());

            txtInfo.setText("Test");
            ((LinearLayout) convertView).addView(txtInfo,
                    new LinearLayout.LayoutParams(
                            LinearLayout.LayoutParams.FILL_PARENT,
                            LinearLayout.LayoutParams.WRAP_CONTENT, 1));

            ToggleButton btn = new ToggleButton(getContext());
            ((LinearLayout) convertView).addView(btn);
        }

        return convertView;
    }
}

而 preferences.xml ：

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >

    <PreferenceCategory android:title="Test custom preferences" >
        <android.dumdum.EncryptorEditTextPreference />
        <android.dumdum.TogglePreference />
    </PreferenceCategory>

</PreferenceScreen>

EncryptorEditText preference 不涉及您的问题，但它使用同样的技术（延长的EditText preference ）。

EncryptorEditTextPreference is not related to your question, but it uses same technique (extending EditTextPreference).

这说明：