LZ是Android入门菜鸡，求大神拯救，我在程序的一开始用xml布局文件写了一个按钮，然后这个xml是以view的形式显示的，我的设想是一点击按钮，程序就在当前view中开启另一个画图的view。
最开始是这样声明的
```public float xAxis = 0;
public float yAxis = 0;
private Button start;
private LayoutInflater layIn;
private View paint_layout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
layIn = LayoutInflater.from(this);
paint_layout = layIn.inflate(R.layout.paint_layout, null);
setContentView(paint_layout);
//setContentView(new MyView(this));
start = (Button) findViewById(R.id.start);
start. setOnClickListener(MyPaint.this);
start.setVisibility(View.VISIBLE);
然后点击事件是这样的
```public void onClick(View v) {
switch (v.getId()) {
case R.id.start:
setContentView(new MyView(this));
break;
default:
break;
}
}
Myview是这样的
``` public MyView(Context context){
super(context);
Display mDisplay = getWindowManager().getDefaultDisplay();
widthScr = mDisplay.getWidth();
heightScr= mDisplay.getHeight();
paint = new Paint();
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(8);
waitMain();
path=new Path();
path.moveTo(xAxis, yAxis);
for (int j=0; j<10;j++){
path.lineTo( j*75 + xAxis , j*75 + yAxis);
}
}
private void waitMain() {
// TODO Auto-generated method stub
if(mainAc.startPaint[0] == 1){
xAxis = widthScr/2;
yAxis = heightScr/2;
}else{
waitMain();
}
}
protected void onDraw (Canvas canvas){
canvas.drawColor(Color.BLACK);//画布背景为黑色
effect=new CornerPathEffect(10);//选择曲线效果
//canvas.translate(8, 8);
paint.setPathEffect(effect);
paint.setColor(Color.WHITE);
canvas.drawPath(path, paint);
//canvas.translate(0, 60);
invalidate();
}
}
现在的情况是一点击按钮程序就卡死直接强退，求问大神们这是为什么啊？
