blocks|key|1321084|text|这段代码做了你需要的事情，我已经测试过了。假设在示例中，您希望用户能够通过主活动中的菜单切换语言。您可以通过将语言标志保存为用户首选项并在"onCreate()“和"onConfigurationChanged()”上选中它来完成此操作，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1321085|++++public+class+MainActivity+extends+Activity+{

SharedPreferences+mPrefs1;

@Override
protected+void+onCreate(Bundle+savedInstanceState)+{
++++super.onCreate(savedInstanceState);
++++mPrefs1+=+PreferenceManager.getDefaultSharedPreferences(this);
++++String+languageToLoad+=+mPrefs1.getString("languagePref",+Locale.getDefault().getLanguage());
++++Locale+locale+=+new+Locale(languageToLoad);+
++++Locale.setDefault(locale);
++++Configuration+config+=+new+Configuration();
++++config.locale+=+locale;
++++getBaseContext().getResources().updateConfiguration(config,getBaseContext().getResources().getDisplayMetrics());

++++setContentView(R.layout.activity_main);
}

@Override
public+void+onConfigurationChanged(Configuration+newConfig)+{
++super.onConfigurationChanged(newConfig);
++++mPrefs1+=+PreferenceManager.getDefaultSharedPreferences(this);
++++String+languageToLoad+=+mPrefs1.getString("languagePref",+Locale.getDefault().getLanguage());
++++Locale+locale+=+new+Locale(languageToLoad);+
++++Locale.setDefault(locale);
++++Configuration+config+=+new+Configuration();
++++config.locale+=+locale;
++++getBaseContext().getResources().updateConfiguration(config,getBaseContext().getResources().getDisplayMetrics());
++++setContentView(R.layout.activity_main);
}

//+Declaring+the+Menu+options
@Override
public+boolean+onCreateOptionsMenu(Menu+menu)
{+++++++
++++MenuInflater+inflater+=+getMenuInflater();
++++inflater.inflate(R.menu.main_menu,+menu);
++++return+true;
}

//handle+menu+item+selection
public+boolean+onOptionsItemSelected(MenuItem+item)
{
++switch+(item.getItemId())+{
++++case+R.id.menu_switch_language:
++++++++String+languageToLoad++=+getResources().getString(R.string.switch_language);

++++++++mPrefs1+=+PreferenceManager.getDefaultSharedPreferences(this);
++++++++SharedPreferences.Editor+editor+=+mPrefs1.edit();
++++++++editor.putString("languagePref",+languageToLoad);
++++++++editor.commit();+//+Very+important+to+save+the+preference++++++++++++++++++++++
++++++++finish();
++++++++startActivity(getIntent());
++++++++return+true;
++++default:
++++++++return+super.onOptionsItemSelected(item);
++}
}+++|code-block|syntax|javascript|1321086|}|1321087|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

This code snippet does what you need, I've tested it. Suppose for the example you want the user to be able to switch language through a menu from your main activity. You can do it through saving a language flag as a user preference and check it on "onCreate()" and on "onConfigurationChanged()" as follows:

<pre><code> public class MainActivity extends Activity {

SharedPreferences mPrefs1;

@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 mPrefs1 = PreferenceManager.getDefaultSharedPreferences(this);
 String languageToLoad = mPrefs1.getString("languagePref", Locale.getDefault().getLanguage());
 Locale locale = new Locale(languageToLoad); 
 Locale.setDefault(locale);
 Configuration config = new Configuration();
 config.locale = locale;
 getBaseContext().getResources().updateConfiguration(config,getBaseContext().getResources().getDisplayMetrics());

 setContentView(R.layout.activity_main);
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
 super.onConfigurationChanged(newConfig);
 mPrefs1 = PreferenceManager.getDefaultSharedPreferences(this);
 String languageToLoad = mPrefs1.getString("languagePref", Locale.getDefault().getLanguage());
 Locale locale = new Locale(languageToLoad); 
 Locale.setDefault(locale);
 Configuration config = new Configuration();
 config.locale = locale;
 getBaseContext().getResources().updateConfiguration(config,getBaseContext().getResources().getDisplayMetrics());
 setContentView(R.layout.activity_main);
}

// Declaring the Menu options
@Override
public boolean onCreateOptionsMenu(Menu menu)
{ 
 MenuInflater inflater = getMenuInflater();
 inflater.inflate(R.menu.main_menu, menu);
 return true;
}

//handle menu item selection
public boolean onOptionsItemSelected(MenuItem item)
{
 switch (item.getItemId()) {
 case R.id.menu_switch_language:
 String languageToLoad = getResources().getString(R.string.switch_language);

 mPrefs1 = PreferenceManager.getDefaultSharedPreferences(this);
 SharedPreferences.Editor editor = mPrefs1.edit();
 editor.putString("languagePref", languageToLoad);
 editor.commit(); // Very important to save the preference 
 finish();
 startActivity(getIntent());
 return true;
 default:
 return super.onOptionsItemSelected(item);
 }
} 
</code></pre>

}

blocks|key|1106100|text|对我来说起作用的是在你膨胀你的布局之前设置语言环境：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1106101|@Override
protected+void+onCreate(Bundle+savedInstanceState)+{
++++super.onCreate(savedInstanceState);

++++String+userLocale+=+"Wolof";+//+adapt+to+your+need
++++Locale+locale+=+new+Locale(userLocale);
++++Locale.setDefault(locale);
++++Configuration+config+=+new+Configuration();
++++config.locale+=+locale;
++++getBaseContext().getResources().updateConfiguration(config,+getBaseContext().getResources().getDisplayMetrics());

++++setContentView(R.layout.my_activity);

++++...

}|code-block|syntax|javascript|1106102|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

What worked for me is setting the locale right before you inflate your layouts :

<pre><code>@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);

 String userLocale = "Wolof"; // adapt to your need
 Locale locale = new Locale(userLocale);
 Locale.setDefault(locale);
 Configuration config = new Configuration();
 config.locale = locale;
 getBaseContext().getResources().updateConfiguration(config, getBaseContext().getResources().getDisplayMetrics());

 setContentView(R.layout.my_activity);

 ...

}
</code></pre>

I try to force the locale in my app to one the user specified. As this may be used to demonstrations, I want to change the language/locale in the app and not anytime for the whole device.

I looked around SO and tried to use every hint I found here. The result: I can restart my test activity with the new language, but if I change the orientation, the locale will always be reseted to the device one.

I <a href="http://martin.cyor.eu/TestProject.zip" rel="nofollow noreferrer">uploaded a minimalistic project</a> so you can reproduce my issue. Please ignore the shrinking of the UI, it's not important :)

Android - Forced locale reset on orientation changes

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我尝试将应用程序中的区域设置强制为用户指定的区域设置。因为这可能用于演示，所以我想在应用程序中更改语言/区域设置，而不是在任何时候更改整个设备。我环顾四周，试着使用我在这里找到的每一个提示。结果:我可以用新的语言重新启动我的测试活动，但如果我更改了方向，区域设置将始终重置为设备区域设置。I 这样你就可以重现我的问题了。...

问Android -在方向更改时强制重置区域设置
EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Android -在方向更改时强制重置区域设置EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问Android -在方向更改时强制重置区域设置
EN