android九宫格锁屏模块

package ymm.learns.gesturepwd.view; import static android.content.Context.MODE_PRIVATE; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Typeface; import android.graphics.Paint.Cap; import android.util.AttributeSet; import android.util.Log; import android.view.MotionEvent; import android.view.View; import ymm.learns.gesturepwd.MainActivity; import ymm.learns.gesturepwd.R; import ymm.learns.gesturepwd.SetPwdResActivity; public class NinePointLineView extends View { Paint linePaint = new Paint(); Paint whiteLinePaint = new Paint(); Paint textPaint = new Paint(); Bitmap defaultBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.lock); int defaultBitmapRadius = defaultBitmap.getWidth() / 2; Bitmap selectedBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.indicator_lock_area); int selectedBitmapDiameter = selectedBitmap.getWidth(); int selectedBitmapRadius = selectedBitmapDiameter / 2; PointInfo[] points = new PointInfo[9]; PointInfo startPoint = null; int width, height; int moveX, moveY; boolean isUp = false; Context cxt; StringBuffer lockString = new StringBuffer(); public NinePointLineView(Context context) { super(context); cxt = context; // this.setBackgroundColor(Color.WHITE);//设置整个背景 initPaint(); } public NinePointLineView(Context context, AttributeSet attrs) { super(context, attrs); // this.setBackgroundColor(Color.WHITE);//设置整个九宫格的背景 initPaint(); } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { // 解析测量规格中的模式和大小 int widthMode = MeasureSpec.getMode(widthMeasureSpec); int widthSize = MeasureSpec.getSize(widthMeasureSpec); int heightMode = MeasureSpec.getMode(heightMeasureSpec); int heightSize = MeasureSpec.getSize(heightMeasureSpec); // 根据需要计算视图的宽度和高度 if (widthMode == MeasureSpec.EXACTLY) { // 如果宽度是精确值，则使用它 width = widthSize; } else { // 否则，根据内容计算宽度 width = 400; } Log.e("NinePointLine", " heightMode="+heightMode ); width = widthSize > 600 ? widthSize : 600; height = heightSize > 600 ? heightSize : 600;//限制最小区域防止出错 Log.e("NinePointLine", "onMeasure: Line 53 and width="+width+" and height="+height ); if (width != 0 && height != 0) { initPoints(points); } super.onMeasure(widthMeasureSpec, heightMeasureSpec); } @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, bottom); } private int startX = 0, startY = 0; @Override protected void onDraw(Canvas canvas) { //canvas.drawText("passwd:" + lockString, 0, 40, textPaint); if (moveX != 0 && moveY != 0 && startX != 0 && startY != 0) { drawLine(canvas, startX, startY, moveX, moveY); } drawNinePoint(canvas); super.onDraw(canvas); } @Override public boolean onTouchEvent(MotionEvent event) { boolean flag = true; if (isUp) { finishDraw(); flag = false; } else { handlingEvent(event); flag = true; } return flag; } private void handlingEvent(MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_MOVE: moveX = (int) event.getX(); moveY = (int) event.getY(); for (PointInfo temp : points) { if (temp.isInMyPlace(moveX, moveY) && temp.isSelected() == false) { temp.setSelected(true); startX = temp.getCenterX(); startY = temp.getCenterY(); int len = lockString.length(); if (len != 0) { int preId = lockString.charAt(len - 1) - 48; points[preId].setNextId(temp.getId()); } lockString.append(temp.getId()); break; } } invalidate(0, height - width, width, height); break; case MotionEvent.ACTION_DOWN: int downX = (int) event.getX(); int downY = (int) event.getY(); for (PointInfo temp : points) { if (temp.isInMyPlace(downX, downY)) { temp.setSelected(true); startPoint = temp; startX = temp.getCenterX(); startY = temp.getCenterY(); lockString.append(temp.getId()); break; } } invalidate(0, height - width, width, height); break; case MotionEvent.ACTION_UP: startX = startY = moveX = moveY = 0; isUp = true; invalidate(); savePwd(); break; default: break; } } private void finishDraw() { for (PointInfo temp : points) { temp.setSelected(false); temp.setNextId(temp.getId()); } lockString.delete(0, lockString.length()); isUp = false; invalidate(); } private void initPoints(PointInfo[] points) { int len = points.length; int seletedSpacing = (width - selectedBitmapDiameter * 3) / 4; int seletedX = seletedSpacing; int seletedY = height - width + seletedSpacing; int defaultX = seletedX + selectedBitmapRadius - defaultBitmapRadius; int defaultY = seletedY + selectedBitmapRadius - defaultBitmapRadius; for (int i = 0; i < len; i++) { if (i == 3 || i == 6) { seletedX = seletedSpacing; seletedY += selectedBitmapDiameter + seletedSpacing; defaultX = seletedX + selectedBitmapRadius - defaultBitmapRadius; defaultY += selectedBitmapDiameter + seletedSpacing; } points[i] = new PointInfo(i, defaultX, defaultY, seletedX, seletedY); seletedX += selectedBitmapDiameter + seletedSpacing; defaultX += selectedBitmapDiameter + seletedSpacing; } } private void initPaint() { Log.e("NinePointLine", "initPaint: 161" ); initLinePaint(linePaint); initTextPaint(textPaint); initWhiteLinePaint(whiteLinePaint); } /** * @param paint */ private void initTextPaint(Paint paint) { textPaint.setTextSize(30); textPaint.setAntiAlias(true); textPaint.setTypeface(Typeface.MONOSPACE); } /** * @param paint */ private void initLinePaint(Paint paint) { Log.e("NinePointLine", "initLinePaint: 178" ); paint.setColor(Color.GRAY); paint.setStrokeWidth(30);//设置两个点之间的线的北京的宽度 paint.setAntiAlias(true); paint.setStrokeCap(Cap.ROUND); } /** * @param paint */ private void initWhiteLinePaint(Paint paint) { pa