具体代码如下所示：
public class MainActivity extends AppCompatActivity {
private ImageButton ibOk ;
private int lastX;
private int lastY;
private int startLeft;
private int startRight;
private int startTop;
private int startBottom;
Override
具体代码如下所示：
public class MainActivity extends AppCompatActivity {
private ImageButton ibOk ;
private int lastX;
private int lastY;
private int startLeft;
private int startRight;
private int startTop;
private int startBottom;
Override
