11- Building First Interactive Project بناء أول تطبيق تفاعلى

Learn Android Studio 2020 Series
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الحلقة 11. بناء أول تطبيق تفاعلى
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• 01-Android Studio 2020...
/**
IMPORTANT: Make sure you are using the correct package name.
This example uses the package name:
package com.example.android.justjava
If you get an error when copying this code into Android studio, update it to match teh package name found
in the project's AndroidManifest.xml file.
**/
package com.example.android.justjava;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
/**
This app displays an order form to order coffee.
*/
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
/**
This method is called when the order button is clicked.
*/
public void submitOrder(View view) {
display(1);
}
/**
This method displays the given quantity value on the screen.
*/
private void display(int number) {
TextView quantityTextView = (TextView) findViewById(R.id.quantity_text_view);
quantityTextView.setText("" + number);
}
}

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