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fix: proteção contra crash por ausência da biblioteca Elgin e otimização de APK #3

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fix: proteção contra crash por ausência da biblioteca Elgin e otimização de APK #3

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41 changes: 26 additions & 15 deletions android/src/main/java/br/com/brasizza/marcus/elgin/ElginPlugin.java
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Original file line number Diff line number Diff line change
Expand Up @@ -43,13 +43,17 @@ public void onAttachedToEngine(@NonNull FlutterPluginBinding flutterPluginBindin

@Override
public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {
switch(call.method){
default:
result.notImplemented();
case "getPlatformVersion":
result.success("Android " + android.os.Build.VERSION.RELEASE);
break;
if (call.method.equals("getPlatformVersion")) {
result.success("Android " + android.os.Build.VERSION.RELEASE);
return;
}

if (printer == null) {
result.error("PRINTER_UNAVAILABLE", "A biblioteca da Elgin não está disponível ou não foi inicializada corretamente.", null);
return;
}

switch (call.method) {
case "startInternalPrinter":
HashMap printerArgs = call.argument("printerArgs");
int resultPrinter = printer.printerInternalImpStart(printerArgs);
Expand Down Expand Up @@ -172,32 +176,39 @@ public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {


case "printTEF":
String cupomTEF = (String) call.argument("cupomTEF");
String cupomTEF = (String) call.argument("cupomTEF");
int tefReturn = printer.imprimeCupomTEF(cupomTEF);
result.success(tefReturn);
break;

default:
result.notImplemented();
break;
}

}

@Override
public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
channel.setMethodCallHandler(null);
if (channel != null) {
channel.setMethodCallHandler(null);
}
}


@Override
public void onAttachedToActivity(ActivityPluginBinding binding) {

public void onAttachedToActivity(ActivityPluginBinding binding) {
activity = binding.getActivity();
printer = new Printer(activity);
try {
printer = new Printer(activity);
} catch (Throwable t) {
Log.e("elgin", "Erro ao inicializar a impressora Elgin: " + t.getMessage());
printer = null;
}

channel = new MethodChannel(this.binaryMessenger, "elgin");
channel = new MethodChannel(this.binaryMessenger, "elgin");
channel.setMethodCallHandler(this);


}
}

@Override
public void onDetachedFromActivity(){
Expand Down