Android应用Java/JSON转字符串及多语言翻译技术求助

Hey Nico, let's break down your problem into two clear parts and solve them with Android best practices:

Right now, you're hardcoding labels like "Shipping Date:" directly in your Java code, which makes translation a nightmare. Instead, we'll move all static, translatable text into Android's resource files — the standard way to handle localization for Android apps.

Step 1: Add Translatable Strings to strings.xml #

Create or update the res/values/strings.xml file with your formatted labels. You can include HTML tags directly in the string resources:

<resources>
    <string name="shipping_date_label"><b>Shipping Date:</b></string>
    <string name="time_label"><b>Time:</b></string>
    <string name="shipping_address_label"><b>Shipping Address:</b></string>
    <string name="description_label"><b>Description:</b></string>
    <string name="weight_label"><b>Weight:</b></string>
    <string name="weight_suffix"> KG</string>
    <string name="destination_date_label"><b>Destination Date:</b></string>
    <string name="destination_address_label"><b>Destination Address:</b></string>
</resources>

For other languages, create a new resource directory like res/values-es (for Spanish) and add a translated strings.xml there. Android will automatically pick the right file based on the device's language settings.

Step 2: Update Your Java Code #

Instead of concatenating hardcoded strings, pull the localized labels from resources and combine them with your dynamic values. Use String.format() for cleaner, more maintainable code:

// Shipping Date
String shippingDateText = String.format(getString(R.string.shipping_date_label) + "%s", shipping_date.toString());
loaddate.setText(Html.fromHtml(shippingDateText));

// Time
String timeText = String.format(getString(R.string.time_label) + "%s", shipping_time.toString());
loadtime.setText(Html.fromHtml(timeText));

// Shipping Address
String shippingAddressText = String.format(getString(R.string.shipping_address_label) + "%s", shipping_address_address.toString());
loadplace.setText(Html.fromHtml(shippingAddressText));

// Description
String descText = String.format(getString(R.string.description_label) + "%s", description.toString());
txtdesc.setText(Html.fromHtml(descText));

// Weight (combined label + value + suffix)
String weightText = String.format("%s%s%s", getString(R.string.weight_label), weight.toString(), getString(R.string.weight_suffix));
txtweight.setText(Html.fromHtml(weightText));

// Destination Date
String destDateText = String.format(getString(R.string.destination_date_label) + "%s", destination_date.toString());
txtdestdate.setText(Html.fromHtml(destDateText));

// Destination Time
String destTimeText = String.format(getString(R.string.time_label) + "%s", destination_time.toString());
txtdesttime.setText(Html.fromHtml(destTimeText));

// Destination Address
String destAddressText = String.format(getString(R.string.destination_address_label) + "%s", destination_address_address.toString());
txtdestplace.setText(Html.fromHtml(destAddressText));

Note: I fixed the typo in your third string u (it had c.getString(shipping_address) which didn't make sense) to use the proper resource string instead.

If you need to work with Java objects or JSON data for translation purposes, here are two common scenarios:

Scenario 1: Java Objects → Translatable Strings #

If you have a Java object (e.g., ShipmentDetails) with static labels and dynamic values, separate the labels into strings.xml and use the object's values to build localized text. For example:

First, define your object:

public class ShipmentDetails {
    private Date shippingDate;
    private String shippingTime;
    // ... other fields

    // Getters
    public Date getShippingDate() { return shippingDate; }
    public String getShippingTime() { return shippingTime; }
}

Then, use it to generate localized text:

ShipmentDetails details = getShipmentDetails(); // Your object instance
String shippingDateText = String.format(getString(R.string.shipping_date_label) + "%s", details.getShippingDate().toString());
loaddate.setText(Html.fromHtml(shippingDateText));

If you need to serialize the object to a structured string (for logging or sending to a translation service), use Gson to convert it to JSON:

import com.google.gson.Gson;

// Convert object to JSON string
Gson gson = new Gson();
String jsonString = gson.toJson(details);

Scenario 2: JSON → Translatable Strings #

If you're receiving JSON data with hardcoded labels, don't use those labels directly. Map the JSON keys to your strings.xml resources instead. For example, if your JSON looks like this:

{
    "shipping_date_label": "Shipping Date:",
    "shipping_date": "2024-05-20"
}

Parse the JSON and replace the label with your localized resource:

import org.json.JSONObject;

JSONObject shipmentJson = new JSONObject(jsonResponse);
String shippingDateValue = shipmentJson.getString("shipping_date");
// Use the localized label instead of the JSON's hardcoded label
String shippingDateText = String.format(getString(R.string.shipping_date_label) + "%s", shippingDateValue);
loaddate.setText(Html.fromHtml(shippingDateText));

This ensures your app uses the correct localized text regardless of the JSON's content.

内容的提问来源于stack exchange，提问作者Nicola Pigozzo