1. package vistula.ml.projekt2;
2.  
3. import androidx.appcompat.app.AppCompatActivity;
4. import androidx.constraintlayout.widget.ConstraintLayout;
5. import androidx.constraintlayout.widget.ConstraintSet;
6.  
7. import android.content.Context;
8. import android.os.Bundle;
9. import android.view.View;
10. import android.widget.Button;
11. import android.widget.EditText;
12. import android.widget.TextView;
13.  
14. public class MainActivity extends AppCompatActivity {
15.  
16.     @Override
17.     protected void onCreate(Bundle savedInstanceState) {
18.         super.onCreate(savedInstanceState);
19.         setContentView(R.layout.activity_main);
20.  
21.         ConstraintLayout constraintLayout = findViewById(R.id.constrainedLayout);
22.         ConstraintLayout.LayoutParams params = new ConstraintLayout.LayoutParams(ConstraintLayout.LayoutParams.WRAP_CONTENT, ConstraintLayout.LayoutParams.WRAP_CONTENT);
23.  
24.         Button button3 = new Button(this);
25.         button3.setText("Button3");
26.         button3.setId(View.generateViewId());
27.         button3.setLayoutParams(params);
28.         constraintLayout.addView(button3);
29.         int x3 = 190, y3 = 700;
30.         ConstraintSet set = new ConstraintSet();
31.         set.clone(constraintLayout);
32.         set.connect(button3.getId(), ConstraintSet.LEFT, constraintLayout.getId(), ConstraintSet.LEFT, x3);
33.         set.connect(button3.getId(), ConstraintSet.TOP, constraintLayout.getId(), ConstraintSet.TOP, y3);
34.         set.applyTo(constraintLayout);
35.  
36.         button3.setOnClickListener(new View.OnClickListener(){
37.             @Override
38.             public void onClick(View v){
39.                 rewriteMyInput(v);
40.             }
41.         });
42.  
43.         ConstraintLayout.LayoutParams params1 = new ConstraintLayout.LayoutParams(ConstraintLayout.LayoutParams.WRAP_CONTENT, ConstraintLayout.LayoutParams.WRAP_CONTENT);
44.  
45.         Button button4 = new Button(this);
46.         button4.setText("Button4");
47.         button4.setId(View.generateViewId());
48.         button4.setLayoutParams(params1);
49.         constraintLayout.addView(button4);
50.         int x4 = 650, y4 = 700;
51.         ConstraintSet set1 = new ConstraintSet();
52.         set1.clone(constraintLayout);
53.         set1.connect(button4.getId(), ConstraintSet.LEFT, constraintLayout.getId(), ConstraintSet.LEFT, x4);
54.         set1.connect(button4.getId(), ConstraintSet.TOP, constraintLayout.getId(), ConstraintSet.TOP, y4);
55.         set1.applyTo(constraintLayout);
56.  
57.         button4.setOnClickListener(new View.OnClickListener(){
58.             @Override
59.             public void onClick(View v){
60.                 rewriteMyInput(v);
61.             }
62.         });
63.     }
64.  
65.     public void rewriteMyInput(View view){
66.         EditText myEditText = (EditText)findViewById(R.id.editText);
67.         String myText = myEditText.getText().toString();
68.         TextView myTextView = (TextView)findViewById(R.id.textView);
69.         myTextView.setText(myText);
70.     }
71.  
72.  
73. }