使用具有视图上下文的构造函数创建Presentation对象。

例如，在MainActivity中创建Presentation对象：

public class MainActivity extends AppCompatActivity {
    private MyPresentation myPresentation;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // Instantiate and show the presentation
        if (myPresentation == null) {
            myPresentation = new MyPresentation(this, getWindow().getDecorView());
            myPresentation.show();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        // Dismiss the presentation when the activity is destroyed
        if (myPresentation != null) {
            myPresentation.dismiss();
            myPresentation = null;
        }
    }

    private static class MyPresentation extends Presentation {
        public MyPresentation(Context context, Display display) {
            super(context, display);
        }

        // Other methods for Presentation
    }
}

这里的MyPresentation类扩展Presentation类，并在其构造函数中使用Context和Display对象作为参数。这样可以避免任何StrictMode违规错误。在MainActivity中，我们将获取活动上下文和视图层次结构的根视图并传递给MyPresentation构造函数。然后，我们调用MyPresentation的show()方法来显示它。在MainActivity的onDestroy()方法中，我们释放MyPresentation对象。