指定ボタンクリックしたら、ラベルテキスト表示変更

▼C:/Users/Administrator/AndroidStudioProjects/MyApp01/app/src/main/java/net/e1blue/android0/myapp01/MyActivity.java

public class MyActivity extends Activity {



    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_my);

    }



    public void changeLabel(View view){

        //Log.v("TEST", "Clicked");

        TextView tv = (TextView)findViewById(R.id.myLabel);

        tv.setText("Changed!");

    }