public ScanMaskView(Context context, AttributeSet attrs) {
super(context, attrs);
// this.context = context;
mFrameSpace = ScreenUtil.dp2px(FRAME_SPACE);
mOutFrameStokeWidth = ScreenUtil.dp2px(OUT_FRAME_STROKE_WIDTH);
mInnerFrameStokeWidth = ScreenUtil.dp2px(INNER_FRAME_STROKE_WIDTH);
mTextMarginTop = ScreenUtil.dp2px(TEXT_MARGIN_TOP);
// mTextMarginButtom = ScreenUtil.dp2px(TEXT_MARGIN_BUTTOM);
mIntervalText = ScreenUtil.dp2px(INTERVAL_TEXT);
mInnerFrameCornerLength = getResources().getDimensionPixelSize(R.dimen.scan_blueline_length);
mTextSize = getResources().getDimension(R.dimen.textsize_18px);
// mHintStr = getResources().getString(R.string.scan_hint);
mScanLine = getResources().getDrawable(R.drawable.qrcode_move_line);
textPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
textPaint.setTextSize(mTextSize);
textPaint.setTextAlign(Paint.Align.CENTER);
textPaint.setColor(getResources().getColor(R.color.scan_text_color));
innerFramePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
innerFramePaint.setStrokeWidth(mInnerFrameStokeWidth);
innerFramePaint.setColor(getResources().getColor(R.color.scan_inner_frame));
innerFramePaint.setStyle(Paint.Style.STROKE);
outFramePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
outFramePaint.setStrokeWidth(mOutFrameStokeWidth);
outFramePaint.setColor(getResources().getColor(R.color.scan_out_frame));
outFramePaint.setStyle(Paint.Style.STROKE);
shadowPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
shadowPaint.setColor(getResources().getColor(R.color.scan_mask_color));
shadowPaint.setStyle(Paint.Style.FILL);
}
private void drawMutiText(
Canvas canvas, Paint textPaint, Point startPoint, int maxLength, String text) {
if (TextUtils.isEmpty(text)) return;
String[] lines = getTextLines(textPaint, text, maxLength);
int line_count = lines.length;
canvas.save();
canvas.translate(startPoint.x, startPoint.y);
for (int i = 0; i < line_count; i++) {
canvas.drawText(lines[i], 0, 0, textPaint);
canvas.translate(0, ScreenUtil.dp2px(INTERVAL_TEXT) + mTextSize);
}
canvas.restore();
}
/**
* 压缩图片，防止oom
*
* @return
*/
public static Bitmap getBitmap(String path) {
BitmapFactory.Options opt = new BitmapFactory.Options();
opt.inJustDecodeBounds = true;
Bitmap bitmap = BitmapFactory.decodeFile(path, opt);
opt.inPreferredConfig = Bitmap.Config.ARGB_8888;
opt.inPurgeable = true;
opt.inInputShareable = true;
opt.inJustDecodeBounds = false;
int w = opt.outWidth;
int h = opt.outHeight;
float ww = ScreenUtil.getScreenInfo()[0];
float hh = ScreenUtil.getScreenInfo()[1];
int be = 1;
if (w > h && w > ww) { // 如果宽度大的话根据宽度固定大小缩放
be = (int) (opt.outWidth / ww);
} else if (w < h && h > hh) { // 如果高度高的话根据宽度固定大小缩放
be = (int) (opt.outHeight / hh);
}
if (be <= 0) be = 1;
opt.inSampleSize = be; // 设置缩放比例
bitmap = BitmapFactory.decodeFile(path, opt);
return bitmap;
}
/**
* 设置下方文本距扫描框的距离
*
* @param distance
*/
public void setTextMarginTop(int distance) {
mTextMarginTop = ScreenUtil.dp2px(distance);
}
