android（canvas触摸不在s4中工作）

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【android（canvas触摸不在s4中工作）】帮我解决这个问题。轮视图（CircleView）在主要设备中运行良好，但此错误来自s4和note 3设备。
触摸被扣除，但不属于weidgetregion。
假 -1必须是真的 -1
区域日志是我的圈子视图代码是

public class CircleView extends View implements OnTouchListener{ boolean firstTime = false; private List< CircleViewBean> mMenuEntries = new ArrayList< CircleViewBean> (); private OnCellTouchListener mOnCellTouchListener = null; public interface OnCellTouchListener { public void onTouch(Wedge cell); } private Shader mShader; private Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG); private float screen_density = getContext().getResources().getDisplayMetrics().density; //Radius of inner ring size private int mMinSize = scalePX(60); //Radius of outer ring size private int mMaxSize = scalePX(170); private int mWedgeQty = 6; //Center X location of Radial Menu private int xPosition = scalePX(120); //Center Y location of Radial Menu private int yPosition = scalePX(120); int touchIndex = -1; private Wedge[] mWedges; private RectF mViewRect = new RectF(); private int scalePX( int dp_size ) { return (int) (dp_size * screen_density + 0.5f); }public CircleView(Context context) { this(context, null); }public CircleView(Context context, AttributeSet attrs) { super(context, attrs); HashMap< String, String> device = Constants.getDeviceDetails(getResources().getDisplayMetrics().heightPixels, getResources().getDisplayMetrics().widthPixels); mMinSize = Integer.parseInt(device.get("in_arc")); mMaxSize = Integer.parseInt(device.get("out_arc")); setBackgroundResource(R.drawable.centre_wheel); } private void determineWedges() { int entriesQty = mMenuEntries.size(); if ( entriesQty > 0) { mWedgeQty = entriesQty; float degSlice = 360 / mWedgeQty; float start_degSlice = 270 - (degSlice/2); //calculates where to put the imagesthis.mWedges = new Wedge[mWedgeQty]; double mid = 0, min = 0, max = 0; for(int i = 0; i < this.mWedges.length; i++) { this.mWedges[i] = new Wedge(xPosition, yPosition, mMinSize, mMaxSize, (i * degSlice)+start_degSlice, degSlice, mMenuEntries.get(i).getIndex()); mid = this.mWedges[i].midValue = https://www.songbingjia.com/android/normalizeAngle( ((i * degSlice) + start_degSlice + degSlice) / 2 ); min = normalizeAngle( (i * degSlice) + start_degSlice ); max = normalizeAngle( (i * degSlice) + start_degSlice + degSlice); this.mWedges[i].minValue = min; this.mWedges[i].midValue = mid; this.mWedges[i].maxValue = max; mViewRect.union( new RectF( mWedges[i].getWedgeRegion().getBounds() ) ); }mShader = new RadialGradient(xPosition, yPosition, mMaxSize, new int[] { 0xff595756, 0xffCCC5C3, 0xf878280}, null, Shader.TileMode.MIRROR); invalidate(); } } @Override public void onDraw(Canvas canvas) { if(!firstTime){ firstTime = true; this.xPosition = (int) (getWidth()/2f); this.yPosition = (int) (getHeight()/2f); determineWedges(); } canvas.scale(getWidth() / mViewRect.width(), getHeight() / mViewRect.width(), xPosition, yPosition); //Saving the canvas and later restoring it so only this image will be rotated. canvas.save(Canvas.MATRIX_SAVE_FLAG); canvas.restore(); canvas.save(); canvas.restore(); mPaint.setShader( mShader ); }private double normalizeAngle(double angle) { if(angle > = 0) { while( angle > 360 ) { angle -= 360; } } else { while( angle < -360) { angle += 360; } } return angle; } protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { // TODO Auto-generated method stub int wmode = MeasureSpec.getMode(widthMeasureSpec); int hmode = MeasureSpec.getMode(heightMeasureSpec); int wsize = MeasureSpec.getSize(widthMeasureSpec); int hsize = MeasureSpec.getSize(heightMeasureSpec); int width = (int)mViewRect.width(); int height = (int) mViewRect.height(); if (wmode == MeasureSpec.EXACTLY) { width = wsize; } if (hmode == MeasureSpec.EXACTLY) { height = hsize; } this.setMeasuredDimension(width, height); invalidate(); }public class Wedge extends Path { private int x, y; private int InnerSize, OuterSize; private float StartArc; private float ArcWidth; private Region mWedgeRegion; private int index=0; public double minValue; public double midValue; public double maxValue; private Wedge(int x, int y, int InnerSize, int OuterSize, float StartArc, float ArcWidth, int category) { super(); this.index = category; if (StartArc > = 360) { StartArc = StartArc-360; }minValue = midValue = maxValue = 0; mWedgeRegion = new Region(); this.x = x; this.y = y; this.InnerSize = InnerSize; this.OuterSize = OuterSize; this.StartArc = StartArc; this.ArcWidth = ArcWidth; this.buildPath(); } public int getCategoryIndex(){ return this.index; } public String toString() { return minValue +"" + midValue + "" + maxValue; } /** * * @return the bottom rect that will be used for intersection */ public Region getWedgeRegion() { return mWedgeRegion; }private void buildPath() {final RectF rect = new RectF(); final RectF rect2 = new RectF(); //Rectangles values rect.set(this.x-this.InnerSize, this.y-this.InnerSize, this.x+this.InnerSize, this.y+this.InnerSize); rect2.set(this.x-this.OuterSize, this.y-this.OuterSize, this.x+this.OuterSize, this.y+this.OuterSize); this.reset(); //this.moveTo(100, 100); this.arcTo(rect2, StartArc, ArcWidth); this.arcTo(rect, StartArc+ArcWidth, -ArcWidth); this.close(); mWedgeRegion.setPath( this, new Region(0,0,480,800) ); } }public boolean addMenuEntry(CircleViewBean menuEntry) { mMenuEntries.add(menuEntry); return true; } @Override public boolean onTouchEvent(MotionEvent event) { if(event.getAction() == MotionEvent.ACTION_UP){ if(mOnCellTouchListener!=null & & touchIndex > -1){ int i=0; for(Wedge day : mWedges) { if(day.getWedgeRegion().getBounds().contains((int)event.getX(), (int)event.getY()) & & touchIndex==i) { mOnCellTouchListener.onTouch(mWedges[touchIndex]); break; } i++; } } }else if(event.getAction() == MotionEvent.ACTION_DOWN || event.getAction() == MotionEvent.ACTION_MOVE){ int i=0; for(Wedge day : mWedges) { if(day.getWedgeRegion().getBounds().contains((int)event.getX(), (int)event.getY())) { touchIndex = i; setBackgroundResource(mMenuEntries.get(touchIndex).getIcon()); } i++; } } return true; } public void setOnCellTouchListener(OnCellTouchListener p) { mOnCellTouchListener = p; }public boolean onTouch(View v, MotionEvent event) { return false; }

}
答案首先，看看第307行。了解如何阅读崩溃日志，因为它确切地说明崩溃是在什么线上，然后它也不应该太难确定什么是错误的。
不知道它是什么线，我猜mWedges可能是null。在onTouch中你做for(Wedge day : mWedges)但不保证那里不是null。如果它为空，您应该在执行此操作之前进行检查。
你把它放在determineWedges中的非空值，但只有当至少有1个mMenuEntries时。因此，当你执行onTouch时没有条目时它会崩溃。
另一答案最后我发现我在这段代码中的错误是它在mdpi和htpi中工作而不是在xxhdpi中，原因是