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Added multi-threading support on the Android app #48

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Added multi-threading support on the Android app #48

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47 changes: 40 additions & 7 deletions cifar/android/CifarETTrainingDemo/app/src/main/java/com/example/democifar10/MainActivity.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -250,7 +250,7 @@ class MainActivity : ComponentActivity() {

override fun onCreate(savedInstanceState: Bundle?) {
val batchSize = 4
val numEpochs = 5
val numEpochs = 10
val width = 32
val height = 32
val channels = 3
Expand Down Expand Up @@ -405,15 +405,48 @@ class MainActivity : ComponentActivity() {
}
}

// Start fine-tuning
trainModel(
tModule!!, trnImgData!!, trnLblData!!, tstImgData!!, tstLblData!!, numEpochs, batchSize
)
// Start fine-tuning in a background thread to prevent ANR
Thread {
try {
trainModel(
tModule!!, trnImgData!!, trnLblData!!, tstImgData!!, tstLblData!!, numEpochs, batchSize
)
} catch (e: Exception) {
Log.e(debugTag, "Error during training: ${e.message}", e)
runOnUiThread {
val statusText = findViewById<TextView>(R.id.statusText)
statusText.text = "Training failed: ${e.message}"
}
}
}.start()
}

evaluateButton.setOnClickListener {
// Evaluate the model
evaluateModel(tModule!!, tstImgData!!, tstLblData!!, batchSize)
Log.d("Button", "Evaluate button clicked")

// Show progress immediately on the UI thread
runOnUiThread {
try {
val statusText = findViewById<TextView>(R.id.statusText)
statusText.text = "Starting evaluation..."
} catch (e: Exception) {
Log.e("StatusText", "Error in evaluate button click: ${e.message}")
e.printStackTrace()
}
}

// Evaluate the model in a background thread to prevent ANR
Thread {
try {
evaluateModel(tModule!!, tstImgData!!, tstLblData!!, batchSize)
} catch (e: Exception) {
Log.e(debugTag, "Error during evaluation: ${e.message}", e)
runOnUiThread {
val statusText = findViewById<TextView>(R.id.statusText)
statusText.text = "Evaluation failed: ${e.message}"
}
}
}.start()
}
}

Expand Down