Android开发：如何将TextView特定格式文本转换为字符串数组？

Hey there! I see you're trying to turn that curly-brace wrapped string from your TextView into a proper String[] for your Android project — let's break this down into simple, actionable steps.

First, Let's Clarify the Input #

Your TextView holds content that looks like this:

{"100$","575$","50$","70$","60$"}

This is almost a valid JSON array, except it uses curly braces instead of square brackets. We can handle this with two approaches: quick manual string cleanup, or robust JSON parsing (the more reliable option for long-term use).

Method 1: Manual String Manipulation (Quick & Straightforward) #

If you’re confident the TextView content will always follow this exact format, you can clean and split the string directly:

// Grab the TextView and its raw content
TextView textView = findViewById(R.id.textView);
String rawText = textView.getText().toString().trim();

// Step 1: Strip off the curly braces from the start and end
String noBraces = rawText.substring(1, rawText.length() - 1);

// Step 2: Split the string by commas, ignoring any extra spaces around items
String[] splitItems = noBraces.split(",\\s*");

// Step 3: Remove quotes from each item and trim leftover whitespace
String[] amountArray = new String[splitItems.length];
for (int i = 0; i < splitItems.length; i++) {
    amountArray[i] = splitItems[i].replace("\"", "").trim();
}

This works great for fixed, predictable formats, but it’ll break if the text ever has unexpected extra characters or formatting shifts.

Method 2: JSON Parsing (Robust & Error-Resilient) #

For a more stable solution, convert the text to a valid JSON array and use Android’s built-in org.json library to parse it:

import org.json.JSONArray;
import org.json.JSONException;

// ...

TextView textView = findViewById(R.id.textView);
String rawText = textView.getText().toString().trim();

// Fix the format: replace curly braces with square brackets to make valid JSON
String validJson = rawText.replace("{", "[").replace("}", "]");

String[] amountArray;
try {
    // Parse the JSON array
    JSONArray jsonArray = new JSONArray(validJson);
    amountArray = new String[jsonArray.length()];
    
    // Pull each string value from the JSON array
    for (int i = 0; i < jsonArray.length(); i++) {
        amountArray[i] = jsonArray.getString(i);
    }
} catch (JSONException e) {
    // Handle parsing errors (e.g., invalid text format)
    e.printStackTrace();
    amountArray = new String[0]; // Fallback to empty array if parsing fails
}

This method is better for long-term maintenance because it handles edge cases (like extra spaces or minor format tweaks) gracefully, and it’s easier to adjust if your input format changes later.

Quick Pro Tip #

If you control how the text gets into the TextView in the first place, store it as a valid JSON array (using square brackets [] instead of curly braces {}) from the start — this will skip the format-fixing step and make parsing even smoother!

内容的提问来源于stack exchange，提问作者SANJOY DASGUPTA