私人无效的setLocale（string地区code）{
    区域设置区域=新区域（区域code）;
    Locale.setDefault（区域）;
    配置配置=新配置（）;
    config.locale =区域;
    。getBaseContext（）getResources（）updateConfiguration（。配置，getBaseContext（）getResources（）getDisplayMetrics（））;
}
 

在AndroidManifest.xml中的活动标签

 的android：configChanges =语言环境
 

所以，你onItemSelected（）方法应该是这样的：

  @覆盖
公共无效onItemSelected（适配器视图＆LT;＆GT;为arg0，视图V，INT位置，长ARG3）{
    Log.v（价值，语言值：+位置）;
    如果（位置== 0）{
         的setLocale（EN）;
    }
    其他{
         的setLocale（FR）;
    }
}
 

我的答案是基于：

1. 如何强制语言Android应用程序




2. Android ：应用程序本身内改变区域设置

I am am trying to change the language of my activity (just the activity not the whole app) when a new item is selected within a spinner. The spinner contains Text representing the language I would like to switch through (French, English etc.)

In my res folder I have separate strings.xml for each language in the correct folders i.e. values-fr for French. How can I, on the changing of the spinner item, load from the correct strings.xml which corresponds?

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ArrayList<String> languages = new ArrayList<String>();
    languages.add("English");
    languages.add("French");

    Spinner spinner = (Spinner)findViewById(R.id.spinner);
    spinner.setAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_spinner_dropdown_item, languages));
    spinner.setOnItemSelectedListener(this);
}

@Override
public void onItemSelected(AdapterView<?> arg0, View v, int position, long arg3) {
    Log.v("Value", "Language Value: " + position);
    if(position == 0){
         //Change text to English
    }
    else{
        //Change text to French
    }
}

private void setLocale(String localeCode){
    Locale locale = new Locale(localeCode);
    Locale.setDefault(locale);
    Configuration config = new Configuration();
    config.locale = locale;
    getBaseContext().getResources().updateConfiguration(config, getBaseContext().getResources().getDisplayMetrics());
}

in AndroidManifest.xml in activity tag

android:configChanges="locale"

So your onItemSelected() method should look like this:

@Override
public void onItemSelected(AdapterView<?> arg0, View v, int position, long arg3) {
    Log.v("Value", "Language Value: " + position);
    if(position == 0){
         setLocale("en");
    }
    else{
         setLocale("fr");
    }
}

My answer is based on:

1. how to force language in android application

2. Android : changing Locale within the app itself