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:

<?xml version="1.0"encoding="utf-8"?>

<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

<?xml version="1.0"encoding="utf-8"?>

<resources>

<string-array name="entries">

<item>JAVA</item>

<item>Swift</item>

<item>C#</item>

</string-array>

<string-array name="values">

<item>Eclipse</item>

<item>Xcode</item>

<item>Visual Studio</item>

</string-array>

<resources>

MyPreference.class

public classMyPreferenceActivityextendsPreferenceActivity {

//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：