我是Android的初学者,在尝试编写简单游戏时遇到了问题。负责绘制所有内容的类(View)称为DrawingView。包含该视图的活动称为activity_game_board
这是整个"游戏的活动。将采取行动
var chkJobsDocketRReq = (CheckBox)this.FindControl("name_of_control");
If (chkJobsDocketRReq.Checked) {}
这是负责完成所有图纸的课程
public class GameBoard extends Activity {
DrawingView drawView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Display display = getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
setContentView(R.layout.activity_game_board);
TextView time_counter_tv = (TextView)findViewById(R.id.time_counter);
}
/***/
}
这是我的activity_game_board.xml文件
public class DrawingView extends View {
Canvas canvas;
public DrawingView(Context context,int w, int h) {
super(context);
/***/
}
/***/
}
这是我在尝试运行应用时遇到的错误:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".HomeScreen"
android:background="@drawable/niebo">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Elapsed time: "
android:id="@+id/time_counter"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<com.example.bouncingball2.DrawingView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/drawing_view"/>
</RelativeLayout>
答案 0 :(得分:0)
您的视图需要正确的构造函数wit类android.content.Context,接口android.util.AttributeSet作为参数