主程序文件
[java]
package com.example.mypreferencefragment;
import android.os.Bundle;
import android.app.Activity;
import android.app.FragmentManager;
import android.app.FragmentTransaction;
import android.view.Menu;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FragmentManager fragmentManager = getFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
Fragment1 fragmen1 = new Fragment1();
fragmentTransaction.replace(android.R.id.content, fragmen1);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
[/java]
res/xml/preferences.xml
[xml]
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen
xmlns:android="http://schemas.android.com/apk/res/android">
<PreferenceCategory android:title="Category 1">
<CheckBoxPreference
android:title="Checkbox"
android:defaultValue="false"
android:summary="True of False"
android:key="checkboxPref" />
</PreferenceCategory>
<PreferenceCategory android:title="Category 2">
<EditTextPreference
android:name="EditText"
android:summary="Enter a string"
android:defaultValue="[Enter a string here]"
android:title="Edit Text"
android:key="editTextPref" />
<RingtonePreference
android:name="Ringtone Preference"
android:summary="Select a ringtone"
android:title="Ringtones"
android:key="ringtonePref" />
<PreferenceScreen
android:title="Second Preference Screen"
android:summary=
"Click here to go to the second Preference Screen"
android:key="secondPrefScreenPref">
<EditTextPreference
android:name="EditText"
android:summary="Enter a string"
android:title="Edit Text (second Screen)"
android:key="secondEditTextPref" />
</PreferenceScreen>
</PreferenceCategory>
</PreferenceScreen>
[/xml]
fragment1.java
[java]
package com.example.mypreferencefragment;
import android.os.Bundle;
import android.preference.PreferenceFragment;
public class Fragment1 extends PreferenceFragment {
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preferences);
}
}
[/java]
文件选项都存储在/data/data/com.xx.xx/shAred_prefs/,用户所做的修改都在保存在这个文件夹下。
