Question

我想以编程方式更改语言。

所以我构建了两个xml文件。

values-it
-->string.xml

values-en
-->string.xml

这是MainActivity中用于更改整个应用程序语言的代码：

//意大利

Resources res = getApplicationContext().getResources();
DisplayMetrics dm = res.getDisplayMetrics();
android.content.res.Configuration conf = res.getConfiguration();
conf.locale = new Locale("it");
res.updateConfiguration(conf, dm);

// ENGLISH

Resources res2 = getApplicationContext().getResources();
DisplayMetrics dm2 = res2.getDisplayMetrics();
android.content.res.Configuration conf2 = res2.getConfiguration();
conf2.locale = new Locale("en");
res2.updateConfiguration(conf2, dm2);

现在，如果我设置英语（例如），代码执行时没有错误，但标签不会更改其文本。
如果我更改设备的方向，标签会正确更改其文本。

现在我如何修改我的代码以自动刷新标签？

Answer 1

 AlertDialog.Builder builder = new AlertDialog.Builder(DashboardActivity.this);
            builder.setTitle(R.string.languages);
            // Add the buttons
            builder.setPositiveButton(R.string.english, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    String languageToLoad = "en"; // your language
                    Locale locale = new Locale(languageToLoad);
                    Locale.setDefault(locale);
                    Configuration config = new Configuration();
                    config.locale = locale;
                    getBaseContext().getResources().updateConfiguration(config,
                            getBaseContext().getResources().getDisplayMetrics());
                    dialog.dismiss();
                    rEditor.putString("language", languageToLoad);
                    rEditor.commit();



                    Intent refresh = new Intent(DashboardActivity.this, DashboardActivity.class);
                    startActivity(refresh);
                    finish();

                }
            });
            builder.setNegativeButton(R.string.gujarati, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    // User cancelled the dialog

                    String languageToLoad = "gu"; // your language
                    Locale locale = new Locale(languageToLoad);
                    Locale.setDefault(locale);
                    Configuration config = new Configuration();
                    config.locale = locale;
                    getBaseContext().getResources().updateConfiguration(config,
                            getBaseContext().getResources().getDisplayMetrics());
                    dialog.dismiss();
                    rEditor.putString("language", languageToLoad);
                    rEditor.commit();


                    Intent refresh = new Intent(DashboardActivity.this, DashboardActivity.class);
                    startActivity(refresh);
                    finish();

                }
            });

            builder.create().show();

您必须重新加载活动以显示新语言文本意味着重新启动。

Answer 2

您需要刷新活动以加载资源，而这需要更改方向。试试这个

module HackyTree exposing(..)
type HackyTree a
  = Empty
    |Single a
    |Deep (List a) (HackyTree (List a)) (List a)

leftAdd: a -> HackyTree a -> HackyTree a
leftAdd a0 tree=
   case tree of
    Empty -> Single a0
    Single a1 -> Deep [a0] Empty [a1]
    Deep left middle right ->
      case left of
         [a1, a2, a3, a4] ->
             Deep [a0, a1] ( leftAdd [a2, a3, a4] middle) right
         _ -> Deep (a0::left) middle right

Answer 3

最好的方法是将所有TextView.setText()放在方法中。在onResume();中调用该方法以便第一次设置它。然后在重置语言时调用该方法。（当您更改方向时，活动将通过onStart() onResume()等）

Answer 4

如果您还没有解决问题，可以尝试一下。它适用于我，希望它会帮助你。你可以在将来推荐它

mSwitch = (Switch) findViewById(R.id.language_switch);

    mSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
        @Override
        public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
                if (isChecked){
                    mSwitch.setTextColor(Color.GRAY);
                    String languageToLoad = "es";
                    Locale locale = new Locale(languageToLoad);
                    Locale.setDefault(locale);
                    Configuration configuration = new Configuration();
                    configuration.setLocale(locale);
                    Toast.makeText(getApplicationContext(), "spanish is set", Toast.LENGTH_SHORT).show();
                    getBaseContext().getResources().updateConfiguration(configuration, getBaseContext().getResources().getDisplayMetrics());
                } else {
                    String languageToLoad = "en";
                    Locale locale = new Locale(languageToLoad);
                    Locale.setDefault(locale);
                    Configuration configuration = new Configuration();
                    configuration.setLocale(locale);
                    Toast.makeText(getApplicationContext(), "english is set", Toast.LENGTH_SHORT).show();
                    getBaseContext().getResources().updateConfiguration(configuration, getBaseContext().getResources().getDisplayMetrics());
                }
        }
    });

Answer 5

我们这样做：

com.android.internal.app.LocalePicker.updateLocales(LocaleList locales)

Answer 6

如何在Android App中以编程方式更改语言???

构建支持多语言的Android App示例。我是从here

找到的

如何以编程方式更改语言？

6 个答案: