Android-单击按钮时手动更改应用程序区域设置 [英] Android - Change app locale manually on button click

问题描述

当用户希望使用更改语言"按钮在北印度语和英语之间切换时，我想更改应用程序的语言环境(语言)以进行编程更改.

I want to change the application's Locale (language) to change programmatically when user wants to switch between Hindi and English using change language button.

我有一个代码来更改语言，但是只有当我在setContentView()方法之前在活动的onCreate()中调用时，它才起作用.

I have a code to change language in place but it works only when I call in in the onCreate() of an activity before setContentView() method.

我们非常感谢您的帮助.

Any help is much appreciated.

推荐答案

在这里查看我的答案

然后再使用Android字体单屏上只有一种语言

例如，如果您希望您的应用程序同时支持英语和英语和阿拉伯字符串(除了默认字符串)，您可以简单地另外创建两个资源目录称为/res/values-en (用于英语strings.xml)和/res/values-ar (用于阿拉伯字符串.xml).

for example if you want your application to support both English and Arabic strings (in addition to the default strings), you can simply create two additional resource directories called /res/values-en (for the English strings.xml) and /res/values-ar (for the Arabic strings.xml).

在 strings.xml 文件中，资源名称相同.

Within the strings.xml files, the resource names are the same.

例如，/res/values-en/strings.xml 文件可以看起来像这样:

For example, the /res/values-en/strings.xml file could look like this:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello in English!</string>
</resources>

/res/values-ar/strings.xml文件如下所示:

Whereas, the /res/values-ar/strings.xml file would look like this:

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">مرحبا في اللغة الإنجليزية</string>
</resources>

而且，/res/values-ur_IN/strings.xml文件对于urdu来说看起来像这样:

also , the /res/values-ur_IN/strings.xml file would look like this for urdu:

印度的ur_IN巴基斯坦的ur_PK

ur_IN for india ur_PK for pakisthan

<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">انگریزی میں خوش!!</string>
</resources>

/res/layout目录中显示字符串的默认布局文件是指字符串由变量名@ string/hello决定，与哪种语言或目录无关字符串资源在其中.

A default layout file in the /res/layout directory that displays the string refers to the string by the variable name @string/hello, without regard to which language or directory the string resource is in.

Android操作系统确定哪个版本的在运行时加载的字符串(法语，英语或默认值).带有TextView控件的布局显示字符串可能看起来像这样:

The Android operating system determines which version of the string (French, English, or default) to load at runtime.A layout with a TextView control to display the string might look like this:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="@string/hello" >
</LinearLayout>

可以通过常规方式以编程方式访问该字符串:

The string is accessed programmatically in the normal way:

String str = getString(R.string.hello);

要更改语言，您需要喜欢更改语言..

For change the language you need to like that change lang..

btn_english.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Locale locale = new Locale("en"); 
                  Locale.setDefault(locale);
                  Configuration config = new Configuration();
                  config.locale = locale;
                  getBaseContext().getResources().updateConfiguration(config, getBaseContext().getResources().getDisplayMetrics());
                  Toast.makeText(this, getResources().getString(R.string.lbl_langSelectEnglis), Toast.LENGTH_SHORT).show();

            }
        });



 btn_arbice.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                 Locale locale = new Locale("ar"); 
                  Locale.setDefault(locale);
                  Configuration config = new Configuration();
                  config.locale = locale;
                  getBaseContext().getResources().updateConfiguration(config, getBaseContext().getResources().getDisplayMetrics());
                  Toast.makeText(this, getResources().getString(R.string.lbl_langSelecURdu), Toast.LENGTH_SHORT).show();

            }
        });


 btn_urdu.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Locale locale = new Locale("ur_IN"); 
                  Locale.setDefault(locale);
                  Configuration config = new Configuration();
                  config.locale = locale;
                  getBaseContext().getResources().updateConfiguration(config, getBaseContext().getResources().getDisplayMetrics());
                  Toast.makeText(HomeActivity.this, getResources().getString(R.string.lbl_langSelectEnglis), Toast.LENGTH_SHORT).show();

            }
        });

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