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Add Base64 compat helper #9

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Add Base64 compat helper #9

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21be67b
Add Base64 compat helper
AlexCherrypi Nov 18, 2025
fbf1acc
Update android/src/main/java/com/malik12tree/bluetooth_print/Capacito…
wemotion-team Nov 18, 2025
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26 changes: 19 additions & 7 deletions android/src/main/java/com/malik12tree/bluetooth_print/CapacitorThermalPrinterPlugin.java
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@
import android.graphics.BitmapFactory;
import android.os.Build;
import android.util.Log;
import androidx.annotation.RequiresApi;
import com.getcapacitor.JSArray;
import com.getcapacitor.JSObject;
import com.getcapacitor.PermissionState;
Expand Down Expand Up @@ -50,7 +49,6 @@
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Base64;
import java.util.List;
import org.json.JSONException;

Expand Down Expand Up @@ -456,7 +454,6 @@ public void text(PluginCall call) {
call.resolve();
}

@RequiresApi(api = Build.VERSION_CODES.O)
@PluginMethod
public void image(PluginCall call) {
String image = call.getString("image");
Expand All @@ -465,20 +462,23 @@ public void image(PluginCall call) {

try {
if (image != null) {
byte[] d = Base64.getDecoder().decode(image.substring(image.indexOf(",") + 1));
byte[] d = decodeBase64Compat(image.substring(image.indexOf(",") + 1));
cmd.append(cmd.getBitmapCmd(bitmapSetting, BitmapFactory.decodeByteArray(d, 0, d.length)));
}
} catch (SdkException ignored) {}
} catch (SdkException ignored) {
} catch (IllegalArgumentException e) {
call.reject("Invalid Base64 image data");
return;
}
call.resolve();
}

@RequiresApi(api = Build.VERSION_CODES.O)
@PluginMethod
public void raw(PluginCall call) {
String base64 = call.getString("data");
if (base64 != null) {
try {
cmd.append(Base64.getDecoder().decode(base64));
cmd.append(decodeBase64Compat(base64));
} catch (Exception ignored) {
call.reject("Invalid Base64");
return;
Expand Down Expand Up @@ -684,6 +684,18 @@ private JSArray getJsonDevices() {
return array;
}

private byte[] decodeBase64Compat(String data) {
if (data == null) {
return new byte[0];
}

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
return java.util.Base64.getDecoder().decode(data);
}

return android.util.Base64.decode(data, android.util.Base64.DEFAULT);
}

@SuppressLint("MissingPermission")
@Override
public void printerObserverCallback(PrinterInterface printerInterface, int state) {
Expand Down