我的应用程序中的 CustomView 绘图问题
我的代码有什么问题。为什么它没有在屏幕上绘制我的自定义视图。
class CustActivty extends Activty{
private ShapeDrawable mDrawable;;
Path path;
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.imagelayout);
CustomView view=new CustomView(getApplicationContext());
RelativeLayout rl=(RelativeLayout)findViewById(R.id.relativeLayout1);
rl.addView(view);
}
class CustomView extends View{
CustomView(Context context){
超级（上下文）； 路径=新路径(); RectF rec=new RectF(10,10,400,400);
path.addArc(rec,90,180);
mDrawable = new ShapeDrawable(new PathShape(path,400,400));
mDrawable.setBounds(10, 10, 400,400);
mDrawable.getPaint().setColor(0xff74AC23);
}
protected void onDraw(Canvas canvas){
mDrawable.draw(canvas);
}
}
}
请任何有想法的人。请帮忙。
What is wrong in my code here.why it is not drawing my customview on screen.
class CustActivty extends Activty{
private ShapeDrawable mDrawable;;
Path path;
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.imagelayout);
CustomView view=new CustomView(getApplicationContext());
RelativeLayout rl=(RelativeLayout)findViewById(R.id.relativeLayout1);
rl.addView(view);
}
class CustomView extends View{
CustomView(Context context){
super(context);
path=new Path();
RectF rec=new RectF(10,10,400,400);
path.addArc(rec,90,180);
mDrawable = new ShapeDrawable(new PathShape(path,400,400));
mDrawable.setBounds(10, 10, 400,400);
mDrawable.getPaint().setColor(0xff74AC23);
}
protected void onDraw(Canvas canvas){
mDrawable.draw(canvas);
}
}
}
Plz anybody having idea.Plz help.
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您应该指定
view将使用的LayoutParams添加到RelativeLayout中，而不只是
rl.addView(view)You should specify the
LayoutParamsthat yourviewwill use to be added to theRelativeLayoutSo instead of just
rl.addView(view)