Why Does My Android App Force Close When Using Intent putExtra with Large HTML Content?

Intent putExtra Length Limit and Force Close on Android

In Android development, it's essential to understand the limits and considerations when using the Intent putExtra method to pass data between activities. This article aims to address a force close error encountered when attempting to pass HTML content via putExtra.

In the provided code snippet, the putExtra method is used to send HTML content from the MainActivity to the ReadDataActivity. The error occurs when the size of the HTML code exceeds a certain threshold.

Maximum putExtra Length

According to documentation, there is an approximate limit of 1MB of data that can be passed via an Intent Bundle for inter-process communication (IPC). This limit can be affected by factors such as the number of simultaneous transactions.

Solution: External Storage or Shared Preferences

To resolve this issue, it is recommended to leverage external storage or shared preferences.

External Storage:

• Save the HTML content in a temporary file on external storage.
• Pass the path or URI of the file to the ReadDataActivity.
• The second activity can read the file contents, perform operations, and delete the file.

Shared Preferences:

• If handling files is inconvenient, consider using SharedPreferences.
• Store the HTML code in a shared preference and retrieve it in the second activity.

Additional Debugging Tips

• Use the Android Debugger (ADB) to inspect the stack trace and identify the line causing the error.
• Enable verbose logging for the Intent передать method to observe the size of the data being passed.
• Consider using Parcelable objects to define a custom data structure for passing complex data, as they can handle larger amounts of data than Bundles.

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