單擊按鈕後加載受保護的方法

Question

僅當單擊按鈕以更改應用程序語言配置時才調用受保護的方法。由於我是Android和java的新手，我無法找到出路。提前致謝。

@Overide 
    protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_choose_language); 
    btnAss = (RadioButton) findViewById(R.id.radioButtonAss); 
    btnEng = (RadioButton) findViewById(R.id.radioButtonEng); 
    btnSubmit = (Button) findViewById(R.id.btnSelectLanguage); 
    btnSubmit.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      if (btnAss.isChecked()) { 


       //here it should call the protected method attachBaseContext 
       // attachBaseContext(getApplicationContext()); 
       Intent intent = new Intent(getApplicationContext(), WelcomeActivity.class); 
       startActivity(intent); 
       finish(); 
      } else { 
       Intent intent = new Intent(getApplicationContext(), WelcomeActivity.class); 
       startActivity(intent); 
       finish(); 
      } 
     } 
    }); 


} 
@Override 
protected void attachBaseContext(Context newBase) { 
    super.attachBaseContext(MyContextWrapper.wrap(newBase,"as")); 
} 

的ContextWrapper如下

public class MyContextWrapper extends ContextThemeWrapper { 

public MyContextWrapper(Context base) { 
    super(base,R.style.AppTheme); 
} 

@SuppressWarnings("deprecation") 
public static ContextWrapper wrap(Context context, String language) { 
    Configuration config = context.getResources().getConfiguration(); 
    Locale sysLocale = null; 
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { 
     sysLocale = getSystemLocale(config); 
    } else { 
     sysLocale = getSystemLocaleLegacy(config); 
    } 
    if (!language.equals("") && !sysLocale.getLanguage().equals(language)) { 
     Locale locale = new Locale(language); 
     Locale.setDefault(locale); 
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { 
      setSystemLocale(config, locale); 
     } else { 
      setSystemLocaleLegacy(config, locale); 
     } 
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { 
      context = context.createConfigurationContext(config); 
     } else { 
      context.getResources().updateConfiguration(config, context.getResources().getDisplayMetrics()); 
     } 
    } 
    return new MyContextWrapper(context); 
} 

@SuppressWarnings("deprecation") 
public static Locale getSystemLocaleLegacy(Configuration config){ 
    return config.locale; 
} 

@TargetApi(Build.VERSION_CODES.N) 
public static Locale getSystemLocale(Configuration config){ 
    return config.getLocales().get(0); 
} 

@SuppressWarnings("deprecation") 
public static void setSystemLocaleLegacy(Configuration config, Locale locale){ 
    config.locale = locale; 
} 

@TargetApi(Build.VERSION_CODES.N) 
public static void setSystemLocale(Configuration config, Locale locale){ 
    config.setLocale(locale); 
} 
} 

Answer 1

你只需要調用添加到方法。

@Override 
     public void onClick(View view) { 
      if (btnAss.isChecked()) { 

      //here it should call the protected method attachBaseContext 
      attachBaseContext(getApplicationContext()); 
      Intent intent = new Intent(getApplicationContext(), WelcomeActivity.class); 
      startActivity(intent); 
      finish(); 
     } else { 
      Intent intent = new Intent(getApplicationContext(), WelcomeActivity.class); 
      startActivity(intent); 
      finish(); 
     } 

但是，我認爲你想要做的就是改變一旦應用程序運行，是否適合？