Why is my Android App Force Closing When Passing Large Amounts of Data with Intent.putExtra()?

Determining Maximum Length of Intent putExtra() Method to Avoid Force Closes

Problem:
An Android application experiences force closes when attempting to pass data to another activity via an Intent object. This issue occurs on some devices but not others.

Code Analysis:
The application calls the onConsoleMessage() method in the WebChromeClient class and sends HTML content to another activity (ReadDataActivity) using the putExtra() method of the Intent object.

Possible Cause:
The force closes may be caused by exceeding the maximum length limit for the Intent's extra data. According to experience, Android allows a maximum of 1MB of data to be bundled in an Intent for inter-process communication (IPC).

Solution:
To resolve the issue, consider saving the HTML content in a temporary file and passing only the file's path or URI to the ReadDataActivity. In the second activity, read the content from the file, perform necessary operations, and delete the file.

Alternative Approaches:

• Shared Preferences: Shared preferences can be used to store and retrieve data. However, the maximum length of a single key-value pair is limited to 1MB.
• Parcelable Object: Creating a custom Parcelable object that implements the Parcelable interface allows for more flexible data transfer.

Debugging Tips:

• Use Logcat to check for error messages.
• Inspect the Bundle object to verify the size of the data being passed.
• Use a profiler tool like MAT to analyze memory usage.

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