PreferenceActivity使用方法

新建MyPreferenceActivity继承PreferenceActivity

res目录下新建xml文件，xml目录下新建mypre.xml

listpreference需要在values下新建mylistpreference.xml

代码：

activity_main.xml:

    Button

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:text="修改首选项"

    android:id="@+id/btn"

    android:layout_centerHorizontal="true"

    android:layout_marginTop="165dp"/>

xml->mypre.xml:

    

    <PreferenceScreenxmlns:android="http://schemas.android.com/apk/res/android">

    <CheckBoxPreference

    android:key="checkbox"

    android:title="是否開啓"

    android:summaryOn="已經開啓"

    android:summaryOff="已經關閉"

    />

    <ListPreference

    android:key="list"

    android:title="选择一个选项"

    android:summary="请点击选择"

    android:entries="@array/entries"

    android:entryValues="@array/values"

    />

    <EditTextPreference

    android:key="text"

    android:dialogTitle="请输入你的名字"

    android:dialogMessage="有劳了"

    android:summary="请再次输入"

    android:title="请输入"

values->mylistPreference.xml

    <resources>

    <string-array name="entries">

    <item>JAVAitem>

    <item>Swiftitem>

    <item>C#item>

    string-array>

    <string-array name="values">

    <item>Eclipseitem>

    <item>Xcodeitem>

    <item>Visual Studioitem>

    string-array>

    <resources>

MyPreference.class

    public class MyPreferenceActivity extends PreferenceActivity {

    //checkBoxPreference

    //listPreference

    //edittextPreference

    PreferenceManagermanager;

    CheckBoxPreferencecheckBoxPreference;

    ListPreferencelistPreference;

    EditTextPreferenceeditTextPreference;

    @Override

    protected voidonCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    addPreferencesFromResource(R.xml.myfer);

    manager= getPreferenceManager();

    checkBoxPreference= (CheckBoxPreference)manager.findPreference("checkbox");

    Toast.makeText(getApplicationContext(),"当前的状态为："+checkBoxPreference.isChecked(),Toast.LENGTH_LONG).show();

    listPreference= (ListPreference)manager.findPreference("list");

    Toast.makeText(getApplicationContext(),listPreference.getEntry()+"的开发环境为："+listPreference.getValue(),Toast.LENGTH_LONG).show();

    editTextPreference= (EditTextPreference)manager.findPreference("text");

    Toast.makeText(getApplicationContext(),"您输入的内容为"+editTextPreference.getText(),Toast.LENGTH_LONG).show();

    }

    }

MainActivity.class

    findViewById(R.id.btn).setOnClickListener(newView.OnClickListener() {

    @Override

    public voidonClick(View view) {

    startActivity(newIntent(getApplicationContext(),MyPreferenceActivity.class));

    }

    });

效果图：