Android集成Instamojo遇问题：已完成基础配置但无预期输出

Hey there! As someone new to Android, it’s awesome you’ve already checked off the initial setup boxes for Instamojo. Let’s walk through the most common issues that might be stopping your callInstamojoPay() from working as expected.

1. Double-Check Your callInstamojoPay() Implementation #

First, make sure your core payment initiation code is structured correctly. A standard working implementation should look something like this (fill in your actual values):

private void callInstamojoPay() {
    InstamojoPay instamojoPay = new InstamojoPay();
    HashMap<String, String> params = new HashMap<>();
    
    // **Required parameters** (don’t skip any!)
    params.put("amount", "100"); // Must be a valid numeric value
    params.put("purpose", "Test Product Payment");
    params.put("email", "buyer@example.com");
    params.put("phone", "9876543210");
    params.put("buyer_name", "Jane Doe");
    
    // Link to your hosted access token script
    params.put("redirect_url", "https://your-server-domain.com/access_token.php");
    
    instamojoPay.setListener(new InstamojoPay.InstamojoPaymentListener() {
        @Override
        public void onSuccess(String response) {
            // Log and handle successful payment
            Log.d("InstamojoLog", "Payment Success: " + response);
        }

        @Override
        public void onFailure(int code, String message) {
            // Log and handle payment failure
            Log.e("InstamojoLog", "Payment Failed: Code " + code + " | Message: " + message);
        }
    });

    instamojoPay.start(this, params);
}

Verify all parameters are formatted correctly (no special characters in purpose, valid email/phone, etc.).

2. Validate Your access_token.php Script #

Your server-side script is the backbone for fetching the authentication token. Here’s what to confirm:

• Environment Match: Use the correct Instamojo endpoint based on testing/production:
  • Sandbox (testing): https://test.instamojo.com/oauth2/token/
  • Production (live): https://www.instamojo.com/oauth2/token/
• Direct Test: Visit your access_token.php URL in a browser. It should return a valid JSON response like:

  {"access_token": "your_valid_token_here", "token_type": "Bearer", "expires_in": 3600}
  

  If it returns an error (e.g., invalid credentials), double-check your Client ID and Client Secret are entered correctly in the script.

3. Fix Android App Configuration Gaps #

• Internet Permission: Add this to your AndroidManifest.xml (it’s mandatory for network calls):

  <uses-permission android:name="android.permission.INTERNET" />
  

• Cleartext Traffic (Android 9+): If your server uses HTTP (not HTTPS), add this line to the <application> tag in AndroidManifest.xml to allow unencrypted requests:

  android:usesCleartextTraffic="true"
  

• SDK Dependency: Confirm you’ve added the Instamojo SDK to your app-level build.gradle:

  implementation 'com.instamojo:android-sdk:1.4.0' // Use the latest stable version
  

  And ensure your project-level build.gradle includes the required repository:

  allprojects {
      repositories {
          maven { url "https://jitpack.io" }
          // Other existing repositories...
      }
  }
  

4. Capture Payment Results Properly #

You won’t see success/failure feedback unless you override onActivityResult() to handle the payment outcome:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == InstamojoPay.INSTAMOJO_PAY_REQUEST_CODE) {
        if (resultCode == RESULT_OK) {
            String response = data.getStringExtra("response");
            Log.d("InstamojoLog", "Success Response: " + response);
            // Update UI or process the payment data here
        } else if (resultCode == RESULT_CANCELED) {
            Log.d("InstamojoLog", "Payment Cancelled by User");
        } else {
            String errorMsg = data.getStringExtra("error");
            Log.e("InstamojoLog", "Error Occurred: " + errorMsg);
        }
    }
}

5. Add Debug Logs to Pinpoint Issues #

Add logs at every critical step to see exactly where things break:

• Log the parameters you’re passing to callInstamojoPay()
• Log the response from your access_token.php when fetching the token
• Log the success/failure callbacks in the Instamojo listener

If you’re still stuck after checking all these, share the error logs or specific code snippets (like your callInstamojoPay() code or access_token.php content) and we can dig deeper!

内容的提问来源于stack exchange，提问作者Binay Kumar