[移动开发]android语言国际化

一、创建不同语言的strings.xml

按照上述步骤，建立 “简体” “繁体” “英文” 的strings.xml

二、demo示例

1、工具类

public class LanguageUtils {

    /**
     * 切换语言环境
     *
     * @param context
     * @param locale
     */
    public static void switchLanguage(Context context, Locale locale) {
        Resources res = context.getResources();
        DisplayMetrics dm = res.getDisplayMetrics();
        Configuration conf = res.getConfiguration();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            conf.setLocale(locale);
            LocaleList localeList = new LocaleList(locale);
            LocaleList.setDefault(localeList);
            conf.setLocales(localeList);
        } else {
            conf.setLocale(locale);
        }
        res.updateConfiguration(conf, dm);
    }

    /**
     * 获取当前语言环境
     *
     * @param context
     * @return
     */
    public static String getDefaultLanguage(Context context) {
        Resources resources = context.getResources();
        Configuration config = resources.getConfiguration();
        Locale contextLocale = config.locale;
        return contextLocale.toString();
    }
}

2、MainActivity

Activity

public class MainActivity extends BaseAbstractActivity {

    @BindView(R.id.id_tv_default_language)
    TextView tvDefaultLanguage;
    @BindView(R.id.id_btn_cn)
    TextView btnCN;
    @BindView(R.id.id_btn_hk)
    TextView btnHK;
    @BindView(R.id.id_btn_us)
    TextView btnUS;
    @BindView(R.id.id_btn_skip)
    TextView btnSkip;


    @Override
    protected int getLayoutId() {
        return R.layout.activity_main;
    }

    @Override
    protected void init() {

        //显示当前语言环境
        tvDefaultLanguage.setText(LanguageUtils.getDefaultLanguage(getActivity()));

        //切换简体
        btnCN.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LanguageUtils.switchLanguage(getActivity(), Locale.SIMPLIFIED_CHINESE);
                actionActivity();
            }
        });
        //切换繁体
        btnHK.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LanguageUtils.switchLanguage(getActivity(), Locale.TRADITIONAL_CHINESE);
                actionActivity();
            }
        });
        //切换英文
        btnUS.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                LanguageUtils.switchLanguage(getActivity(), Locale.US);
                tvDefaultLanguage.setText(LanguageUtils.getDefaultLanguage(getApplicationContext()));
                actionActivity();
            }
        });


        //skip
        btnSkip.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(getActivity(), TestActivity.class));
            }
        });
    }

    public void actionActivity() {
        Intent intent = new Intent(getActivity(), MainActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
        startActivity(intent);
    }

    @Override
    protected BaseAbstractActivity getActivity() {
        return this;
    }
}

layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <TextView
        android:id="@+id/id_tv_default_language"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:background="@android:color/darker_gray"
        android:gravity="center_horizontal"
        android:padding="30dp"
        android:text=""
        android:textColor="@android:color/white"
        android:textSize="30dp" />


    <TextView
        android:id="@+id/id_btn_cn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:background="@android:color/black"
        android:gravity="center_horizontal"
        android:padding="30dp"
        android:text="@string/STRING_01"
        android:textColor="@android:color/white"
        android:textSize="30dp" />

    <TextView
        android:id="@+id/id_btn_hk"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:background="@android:color/black"
        android:gravity="center_horizontal"
        android:padding="30dp"
        android:text="@string/STRING_02"
        android:textColor="@android:color/white"
        android:textSize="30dp" />

    <TextView
        android:id="@+id/id_btn_us"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:background="@android:color/black"
        android:gravity="center_horizontal"
        android:padding="30dp"
        android:text="@string/STRING_03"
        android:textColor="@android:color/white"
        android:textSize="30dp" />


    <TextView
        android:id="@+id/id_btn_skip"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="20dp"
        android:background="@android:color/holo_blue_light"
        android:gravity="center_horizontal"
        android:padding="30dp"
        android:text="skip"
        android:textColor="@android:color/white"
        android:textSize="30dp" />

</LinearLayout>

2、TestActivity

public class TestActivity extends BaseAbstractActivity {

    @BindView(R.id.id_tv_show)
    TextView tvShow;


    @Override
    protected int getLayoutId() {
        return R.layout.act_test;
    }

    @Override
    protected void init() {

    }

    @Override
    protected BaseAbstractActivity getActivity() {
        return this;
    }
}

layout

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">


    <TextView
        android:id="@+id/id_tv_show"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:text="@string/STRING_00"
        android:textSize="30dp" />


</RelativeLayout>