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private void createPdfImg() {
//创建待分享的view
View view = LayoutInflater.from(getContext()).inflate(R.layout.ecg_pdf_view, null);
PdfEcgWaveView waveView = view.findViewById(R.id.ecg_wave_view2);
PdfEcgWaveView.DATA_PRE_SECOND = sampleRate;
getAndSavePdfImg(view, waveView, 1);
}
int page;// 分页
private void getAndSavePdfImg(View view, PdfEcgWaveView waveView, int i) {
waveView.setGain(gain);
waveView.setPagerSpeed(paperSpeed + 1);
Log.d("列表大小", ecgWaveList.size() + "");
//采样率是512个数据/秒,我们取8秒生成一张图，从而得到512*8=4096
int dataSize = sampleRate * 8;
page = (int) Math.ceil((double) ecgWaveList.size() / dataSize);
List<Float> pdfItem = new ArrayList<>();
for (int j = 0; j < page; j++) {
pdfItem.clear();
for (int k = j * dataSize; k < dataSize + dataSize * j; k++) {
if (k < ecgWaveList.size()) {
pdfItem.add(ecgWaveList.get(k));
}
}
waveView.preparePoints(pdfItem);
layoutView(view, waveView, pdfItem);
getAndSaveBitmap(view, j);
}
Log.d("ecgsize", ecgWaveList.size() + "");
}
protected void layoutView(View v, PdfEcgWaveView waveView, List<Float> ecgItem) {
int a = (int) (sampleRate * 8 * ecgWaveView.getDataSpacing());
Log.d("viewSize", ecgItem.size() + "");
Log.e("bitmap", "a=" + a + "-dataSpacing=" + ecgWaveView.getDataSpacing() + "-sampleRate=" + sampleRate);
v.layout(0, 0, a, SizeUtils.dp2px(180));
int measuredWidth = View.MeasureSpec.makeMeasureSpec(a, View.MeasureSpec.EXACTLY);
int measuredHeight = View.MeasureSpec.makeMeasureSpec(SizeUtils.dp2px(180), View.MeasureSpec.EXACTLY);
v.measure(measuredWidth, measuredHeight);
v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
}
/**
* 创建和保存bitmap
*/
protected void getAndSaveBitmap(View v, int i) {
Log.e("bitmap","width="+v.getWidth()+"height="+v.getHeight());
Bitmap bitmap = Bitmap.createBitmap(v.getWidth(), v.getHeight(),
Bitmap.Config.ARGB_8888);
// 利用bitmap生成画布
Canvas canvas = new Canvas(bitmap);
// 把view中的内容绘制在画布上
v.draw(canvas);
saveBitmap(bitmap, i);
}
/**
* 保存并压缩图片
*
* @param bitmap
*/
public void saveBitmap(Bitmap bitmap, int i) {
Log.d("hehe", "保存图片");
singleThreadExecutor.execute(new Runnable() {
@Override
public void run() {
String path = Constants.PDF_IMG_ROTE_PATH + "/img" + i + ".png";
File file = new File(path);
try {
FileOutputStream stream = new FileOutputStream(file);
//压缩图片
bitmap.compress(Bitmap.CompressFormat.JPEG, 80, stream);
//释放资源
stream.flush();
stream.close();
} catch (Exception e) {
disProgressDialog();
ToastUtil.showLongToast(StringUtils.getString(R.string.failed_report));
Log.d("hehe", e.getLocalizedMessage());
}
}
});
}