在应用程序本身内更改区域设置 [英] Changing Locale within the app itself

问题描述

我的用户可以在应用程序中更改区域设置(他们可能希望将手机设置保留为英语，但阅读我的应用程序内容的法语、荷兰语或任何其他语言......)

My users can change the Locale within the app (they may want to keep their phone settings in English but read the content of my app in French, Dutch or any other language ...)

为什么这在 1.5/1.6 中工作得很好，但在 2.0 中不再有效???

Why is this working perfectly fine in 1.5/1.6 but NOT in 2.0 anymore ???

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch(item.getItemId()) {
    case 201:
        Locale locale2 = new Locale("fr"); 
        Locale.setDefault(locale2);
        Configuration config2 = new Configuration();
        config2.locale = locale2;
        getBaseContext().getResources().updateConfiguration(
            config2, getBaseContext().getResources().getDisplayMetrics());
        // loading data ...
        refresh();
        // refresh the tabs and their content
        refresh_Tab ();   
     break;
     case 201: etc...

问题是每次用户执行上面的代码行时，菜单缩小"得越来越多......

The problem is that the MENU "shrinks" more and more everytime the user is going through the lines of code above ...

这是缩小的菜单:

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    menu.add(0, 100, 1, "REFRESH").setIcon(android.R.drawable.ic_menu_compass);
    SubMenu langMenu = menu.addSubMenu(0, 200, 2, "NL-FR").setIcon(android.R.drawable.ic_menu_rotate);
        langMenu.add(1, 201, 0, "Nederlands");
        langMenu.add(1, 202, 0, "Français");
    menu.add(0, 250, 4, R.string.OptionMenu2).setIcon(android.R.drawable.ic_menu_send);
    menu.add(0, 300, 5, R.string.OptionMenu3).setIcon(android.R.drawable.ic_menu_preferences);
    menu.add(0, 350, 3, R.string.OptionMenu4).setIcon(android.R.drawable.ic_menu_more);
    menu.add(0, 400, 6, "Exit").setIcon(android.R.drawable.ic_menu_delete);

    return super.onCreateOptionsMenu(menu);
}

我应该在 API 级别 5 中做什么才能使这项工作再次发挥作用?

What should I do in API Level 5 to make this work again ?

如果你想测试这个，这里是完整的代码:

HERE IS THE FULL CODE IF YOU WANT TO TEST THIS :

import java.util.Locale;

import android.app.Activity;
import android.content.res.Configuration;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.SubMenu;
import android.widget.Toast;

public class Main extends Activity {
    /** Called when the activity is first created. */


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

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        SubMenu langMenu = menu.addSubMenu(0, 200, 2, "NL-FR").setIcon(android.R.drawable.ic_menu_rotate);
            langMenu.add(1, 201, 0, "Nederlands");
            langMenu.add(1, 202, 0, "Français");

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch(item.getItemId()){

        case 201:

            Locale locale = new Locale("nl"); 
            Locale.setDefault(locale);
            Configuration config = new Configuration();
            config.locale = locale;
            getBaseContext().getResources().updateConfiguration(config, getBaseContext().getResources().getDisplayMetrics());
            Toast.makeText(this, "Locale in Nederlands !", Toast.LENGTH_LONG).show();
            break;

        case 202:

            Locale locale2 = new Locale("fr"); 
            Locale.setDefault(locale2);
            Configuration config2 = new Configuration();
            config2.locale = locale2;
            getBaseContext().getResources().updateConfiguration(config2, getBaseContext().getResources().getDisplayMetrics());

            Toast.makeText(this, "Locale en Français !", Toast.LENGTH_LONG).show();
            break;  

        }
        return super.onOptionsItemSelected(item);
    }
}

这是清单:

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="com.cousinHub.ChangeLocale"
          android:versionCode="1"
          android:versionName="1.0">
        <application android:icon="@drawable/icon" android:label="@string/app_name">
            <activity android:name=".Main"
                      android:label="@string/app_name">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
        </application>
        <uses-sdk android:minSdkVersion="3" /> 
    </manifest>

这就是我发现的:

<uses-sdk android:minSdkVersion="5" />

=> 一切正常……

<uses-sdk android:minSdkVersion="3" />

=> 每次更改区域设置时菜单都会缩小！！！

=> Menu shrinks every time you change the locale !!!

因为我想让 1.5 上的用户可以访问我的应用程序，我应该怎么做??

as I want to keep my application accessible for users on 1.5, what should I do ??

推荐答案

睡了一夜好觉后，我在网上找到了答案(在下面一行简单的谷歌搜索getBaseContext().getResources().updateConfiguration(mConfig, getBaseContext().getResources().getDisplayMetrics());")，这里是:

After a good night of sleep, I found the answer on the Web (a simple Google search on the following line "getBaseContext().getResources().updateConfiguration(mConfig, getBaseContext().getResources().getDisplayMetrics());"), here it is :

链接文本=> 此链接还显示了正在发生的事情的screenshots！

link text => this link also shows screenshots of what is happening !

密度是这里的问题，我需要在 AndroidManifest.xml 中有这个

Density was the issue here, I needed to have this in the AndroidManifest.xml

<supports-screens
android:smallScreens="true"
android:normalScreens="true"
android:largeScreens="true"
android:anyDensity="true"
/>

最重要的是 android:anyDensity =" true ".

不要忘记在 AndroidManifest.xml 中为每个活动(Android 4.1 及以下)添加以下内容:

Don't forget to add the following in the AndroidManifest.xml for every activity (for Android 4.1 and below):

android:configChanges="locale"

当您为 Android 4.2(API 级别 17)构建时需要此版本 此处解释:

This version is needed when you build for Android 4.2 (API level 17) explanation here:

android:configChanges="locale|layoutDirection"

这篇关于在应用程序本身内更改区域设置的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！