android九宫格锁屏控件
16lz
2021-01-23
public class LockView extends View { //半径 private int radius; //中心小圆半径 private int smallRadius; //一行个数 private int column; //选中颜色 private int selectColor; //未选中颜色 private int normalColor; //阴影颜色 private int shaderColor; //连线的颜色 private int lineColor; //圆线宽 private int circleStrokeWidth; //连线的线宽 private int lineStrokeWidth; private Paint normalPaint; private Paint selectPaint; private Paint linePaint; private Paint centerPaint; private int width; //每个圆宽度 private int everyWidth; //是否是选中绘制 private boolean isSelect; //所有圆信息 private List allCircleList = new ArrayList<>(); //选中圆的标志 private List selectList = new ArrayList<>(); //是否是重置 private boolean isReSet; private LockViewFinishListener lockViewFinishListener; public LockView(Context context, @Nullable AttributeSet attrs) { super(context, attrs); init(context, attrs); } public LockViewFinishListener getLockViewFinishListener() { return lockViewFinishListener; } public void setLockViewFinishListener(LockViewFinishListener lockViewFinishListener) { this.lockViewFinishListener = lockViewFinishListener; } private void init(Context context, AttributeSet attrs) { TypedArray typedArray = context.obtainStyledAttributes(attrs,R.styleable.LockView); radius = typedArray.getInteger(R.styleable.LockView_lock_radius,100); smallRadius = typedArray.getInteger(R.styleable.LockView_smallRadius,30); column = typedArray.getInteger(R.styleable.LockView_column,3); selectColor =typedArray.getColor(R.styleable.LockView_selectColor,Color.RED); normalColor = typedArray.getColor(R.styleable.LockView_lock_normalColor,Color.GRAY); shaderColor = typedArray.getColor(R.styleable.LockView_shaderColor,Color.argb(80, 0xff, 0x00, 0x00)); lineColor = typedArray.getColor(R.styleable.LockView_lineColor,Color.RED); circleStrokeWidth = typedArray.getInteger(R.styleable.LockView_circleStrokeWidth,5); lineStrokeWidth = typedArray.getInteger(R.styleable.LockView_lineStrokeWidth,15); normalPaint = new Paint(); normalPaint.setColor(normalColor); normalPaint.setAntiAlias(false);//设置为无锯齿 normalPaint.setStrokeWidth(circleStrokeWidth);//线宽 normalPaint.setStyle(Paint.Style.STROKE); selectPaint = new Paint(); selectPaint.setColor(selectColor); selectPaint.setAntiAlias(false); selectPaint.setStrokeWidth(circleStrokeWidth); selectPaint.setStyle(Paint.Style.STROKE); centerPaint = new Paint(); centerPaint.setColor(selectColor); centerPaint.setAntiAlias(false); centerPaint.setStrokeWidth(radius - smallRadius); centerPaint.setStyle(Paint.Style.FILL_AND_STROKE); linePaint = new Paint(); linePaint.setColor(lineColor); linePaint.setAntiAlias(false);//设置为无锯齿 linePaint.setStrokeWidth(lineStrokeWidth);//线宽 linePaint.setAlpha(150); linePaint.setStyle(Paint.Style.STROKE); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { width = measureWidth(widthMeasureSpec); setMeasuredDimension(width, width); everyWidth = (width - getPaddingLeft() - getPaddingRight()) / column; allCircleList.clear(); for (int i = 0; i < column; i++) { for (int j = 0; j < column; j++) { float cx = getPaddingLeft() + everyWidth / 2 * (2 * j + 1); float cy = getPaddingTop() + everyWidth / 2 * (2 * i + 1); Point point = new Point(); point.cx = cx; point.cy = cy; allCircleList.add(point); } } } @Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); for (int i = 0; i < allCircleList.size(); i++) { Point point = allCircleList.get(i); canvas.drawCircle(point.cx, point.cy, radius, normalPaint); } if (isReSet) {//重置 isReSet = false; postInvalidate(); } else { if (isSelect) { for (int i = 0; i < selectList.size(); i++) { int index = selectList.get(i); Point point = allCircleList.get(index); canvas.drawCircle(point.cx, point.cy, radius, selectPaint); Shader mShader = new RadialGradient(point.cx, point.cy, smallRadius, new int[]{selectColor, shaderColor}, new float[]{0.9f, 1f}, Shader.TileMode.CLAMP); centerPaint.setShader(mShader); canvas.drawCircle(point.cx, point.cy, smallRadius, centerPaint); if (i >= 1) { int lastIndex = selectList.get(i - 1); Point lastPoint = allCircleList.get(lastIndex); canvas.drawLine(lastPoint.cx, lastPoint.cy, point.cx, point.cy, linePaint); } } } } } @Override public boolean onTouchEvent(MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: isReSet = true; selectList.clear(); int index = calculateWhich(event.getX(), event.getY()); if (index != -1) { selectList.add(index); isSelect = true; } break; case MotionEvent.ACTION_MOVE: index = calculateWhich(event.getX(), event.getY()); if (index != -1) { if (!selectList.contains(index)) { selectList.add(index); } } break; case MotionEvent.ACTION_UP: if (lockViewFinishListener != null) { StringBuffer result = new StringBuffer(); for (int i = 0; i < selectList.size(); i++) { result.append(selectList.get(i)); } lockViewFinishListener.onSuccess(result + ""); } break; } postInvalidate(); return true; } /** * 计算控件宽高 * * @param widthMeasureSpec * @return */ private int measureWidth(int widthMeasureSpec) { int result; int specSize = MeasureSpec.getSize(widthMeasureSpec); int specMode = MeasureSpec.getMode(widthMeasureSpec); if (specMode == MeasureSpec.EXACTLY) { result = specSize; } else { result = getPaddingLeft() + getPaddingRight() + radius * 2 * column ; if (specMode == MeasureSpec.AT_MOST) { result = Math.min(result, specSize); } } return result; } /** * 计算是在哪个圆中 * * @return */ private int calculateWhich(float lx, float ly) { for (int i = 0; i < allCircleList.size(); i++) { Point point = allCircleList.get(i); if (lx > point.cx - radius && lx < point.cx + radius) { if (ly > point.cy - radius && ly < point.cy + radius) { return i; } } } return -1; } public interface LockViewFinishListener { void onSuccess(String result); } private class Point { private float cx; private float cy; }} 更多相关文章
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