我又找了几个小时,没找到我理解/正在寻找的答案.

我有一个首选项屏幕,当用户点击菜单中的设置时会打开该屏幕.这有效.

但是,当他完成设置时,我如何才能最好地使用户关闭此屏幕.

我喜欢在Chrome中完成的方式,您可以在其中返回上一个屏幕.

其他可能性也受到赞赏.

活动,属于偏好(它应该返回)：

public class MainActivity extends Activity

{

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

}

public void startGame(View view)

{

Intent intent = new Intent(this,Game.class);

startActivity(intent);

}

@Override

public boolean onCreateOptionsMenu(Menu menu)

{

MenuInflater inflater = getMenuInflater();

inflater.inflate(R.layout.game_settings,menu);

return super.onCreateOptionsMenu(menu);

}

@Override

public boolean onOptionsItemSelected(MenuItem item)

{

switch (item.getItemId())

{

case R.id.action_settings:

getFragmentManager().beginTransaction()

.replace(android.R.id.content,new SettingsFragment())

.commit();

return true;

default:

return super.onOptionsItemSelected(item);

}

}

}

喜好：

public class SettingsFragment extends PreferenceFragment

{

@Override

public void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

addPreferencesFromResource(R.layout.preferences);

}

}

XML：

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

android:title="@string/circle_setting_title"

android:key="circle_setting"

android:summary="@string/circle_setting_summary"

android:entries="@array/circle_setting_amount"

android:entryValues="@array/circle_setting_amount_value"

android:defaultValue="3"/>

android:title="@string/color_setting_title"

android:key="color_setting"

android:summary="@string/color_setting_summary"

android:entries="@array/color_setting_amount"

android:entryValues="@array/color_setting_amount_value"

android:defaultValue="3"/>