App内多语言切换

1.SelectLanguageActivity

选对应语言时：

Configuration config = getResources().getConfiguration();
config.locale = new Locale("th");
language = "id";
application.commitString("language",language);//所选语言保存到SharedPreferences中
getResources().updateConfiguration(config, getResources().getDisplayMetrics());

界面跳转：

Intent intent = new Intent(SelectLanguageActivity.this, LoginActivity.class);
                        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                        startActivity(intent);

2.MyApplication

onCreate和onConfigurationChanged中获取之前设置的语言：

String language = preferences.getString("language", "id");
switchLanguage(language);// 根据上次的语言设置，重新设置语言
// 设置语言类型
    public void switchLanguage(String language) {
        Resources resources = getResources();
        Configuration configuration = getResources().getConfiguration();
        if (language.equals("en")) {
            configuration.locale = new Locale("en");
        } else if (language.equals("zh")) {
            configuration.locale = new Locale("zh");
        } else if (language.equals("id")) {
            configuration.locale = new Locale("th");
        }
        DisplayMetrics dm = resources.getDisplayMetrics();
        resources.updateConfiguration(configuration, dm);
    }

3.BaseActivity

在onCreate中获取之前设置的语言：

String language = getSharedPreferences("profileName", MODE_PRIVATE).getString("language", "id");
        Resources resources = getResources();
        Configuration configuration = getResources().getConfiguration();
        if (language.equals("en")) {
            configuration.locale = new Locale("en");
        } else if (language.equals("zh")) {
            configuration.locale = new Locale("zh");
        } else if (language.equals("id")) {
            configuration.locale = new Locale("th");
        }
        DisplayMetrics dm = resources.getDisplayMetrics();
        resources.updateConfiguration(configuration, dm);