废话不多说先上效果图 点击红框内 可以获取 坐标点 像素点
我先把主界面的代码复制上来
1 package com.ltfz.photo.photovalue.activity; 2 3 import android.content.Intent; 4 import android.graphics.Bitmap; 5 import android.graphics.BitmapFactory; 6 import android.graphics.Color; 7 import android.graphics.ImageFormat; 8 import android.graphics.Rect; 9 import android.graphics.YuvImage; 10 import android.hardware.Camera; 11 import android.os.AsyncTask; 12 import android.os.Bundle; 13 import android.os.Handler; 14 import android.os.Message; 15 import android.support.v7.app.AppCompatActivity; 16 import android.util.Log; 17 import android.view.MotionEvent; 18 import android.view.SurfaceHolder; 19 import android.view.SurfaceView; 20 import android.view.View; 21 import android.widget.Button; 22 import android.widget.ImageButton; 23 import android.widget.ImageView; 24 import android.widget.TextView; 25 26 import com.ltfz.photo.photovalue.CustView.DrawRectView; 27 import com.ltfz.photo.photovalue.CustView.ViewFinderView; 28 import com.ltfz.photo.photovalue.R; 29 import com.ltfz.photo.photovalue.Utils.ImageDispose; 30 import com.ltfz.photo.photovalue.Utils.SDPathUtils; 31 32 import java.io.BufferedOutputStream; 33 import java.io.ByteArrayOutputStream; 34 import java.io.File; 35 import java.io.FileOutputStream; 36 import java.io.IOException; 37 import java.text.SimpleDateFormat; 38 import java.util.Calendar; 39 import java.util.Locale; 40 import java.util.TimeZone; 41 42 public class Camera1Activity extends AppCompatActivity implements SurfaceHolder.Callback { 43 44 //指明需要使用到相机 45 //声明相机 因为需要用到自定义相机 46 private Camera camera; 47 //使用屏幕surface 48 //只要是自定义的相机视频动画等需要用到屏幕view 49 private SurfaceView surfaceView; 50 //屏幕管理者 51 private SurfaceHolder surfaceHolder; 52 //屏幕管理的方法名 53 private ImageButton imageButton2; 54 private ImageView imageView3; 55 private Button btnpz; 56 private SurfaceView surfaceView1; 57 private SurfaceHolder mHolder; 58 private Bitmap photo; 59 private Bitmap bit_photo; 60 private ViewFinderView viewFinderView; 61 private TextView tv_rgb; 62 private DrawRectView mDrawIV; 63 private int width; 64 private int height; 65 private ImageView iv; 66 private Bitmap bitmap; 67 // private KuangkuangView rectOnCamera; 68 69 @Override 70 protected void onCreate(Bundle savedInstanceState) { 71 super.onCreate(savedInstanceState); 72 setContentView(R.layout.activity_camera1); 73 btnpz = (Button) findViewById(R.id.btn_pz); 74 tv_rgb = (TextView) findViewById(R.id.tv_rgb); 75 surfaceView1 = (SurfaceView) findViewById(R.id.surfaceView2); 76 viewFinderView = (ViewFinderView) findViewById(R.id.viewfinder); 77 mDrawIV = (DrawRectView) findViewById(R.id.draw_view); 78 iv = (ImageView) findViewById(R.id.iv_image); 79 // getIntent().getIntExtra("hei"); 80 width = getIntent().getExtras().getInt("width"); 81 height = getIntent().getExtras().getInt("hei"); 82 // rectOnCamera = (KuangkuangView) findViewById(R.id.rectOnCamera); 83 84 btnpz.setOnClickListener(new View.OnClickListener() { 85 @Override 86 public void onClick(View view) { 87 capture(view); 88 } 89 }); 90 surfaceView1.setOnClickListener(new View.OnClickListener() { 91 @Override 92 public void onClick(View view) { 93 try { 94 camera.autoFocus(null);//点击屏幕自动对焦 95 } catch (Exception e) { 96 e.printStackTrace(); 97 setStartPreView(camera, mHolder); 98 } 99 100 101 102 } 103 }); 104 camera = getCamera(); 105 mHolder = surfaceView1.getHolder(); 106 mHolder.addCallback(this); 107 108 setStartPreView(camera, mHolder); 109 camera.setPreviewCallback(new Camera.PreviewCallback() { 110 @Override 111 public void onPreviewFrame(byte[] bytes, Camera camera) { 112 // BitmapFactory.Options options = new BitmapFactory.Options(); 113 // options.inTempStorage = new byte[100 * 1024]; 114 // options.inPreferredConfig = Bitmap.Config.RGB_565; 115 // options.inPurgeable = true; 116 // options.inSampleSize = 12; 117 // options.inInputShareable = true; 118 // photo = BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options); 119 120 Camera.Size size = camera.getParameters().getPreviewSize(); 121 try { 122 YuvImage image = new YuvImage(bytes, ImageFormat.NV21, size.width, size.height, null); 123 if (image != null) { 124 ByteArrayOutputStream stream = new ByteArrayOutputStream(); 125 image.compressToJpeg(new Rect(0, 0, size.width, size.height), 80, stream); 126 127 photo = BitmapFactory.decodeByteArray(stream.toByteArray(), 0, stream.size()); 128 Log.e("Sys12", "Error12:" + photo); 129 //********************** 130 //因为图片会放生旋转，因此要对图片进行旋转到和手机在一个方向上 131 // rotateMyBitmap(bmp); 132 //********************************** 133 134 stream.close(); 135 } 136 } catch (Exception ex) { 137 Log.e("Sys", "Error:" + ex.getMessage()); 138 } 139 140 141 } 142 }); 143 144 surfaceView1.setOnTouchListener(new View.OnTouchListener() { 145 @Override 146 public boolean onTouch(View view, MotionEvent event) { 147 try { 148 int x = (int) event.getX(); 149 150 int y = (int) event.getY(); 151 if (x < width / 2 || y < height / 2 || x > width / 2 * 3 || y > height) { 152 return false; 153 } 154 155 156 if (event.getAction() == MotionEvent.ACTION_UP) { 157 int color = photo.getPixel(x, y); 158 // 如果你想做的更细致的话 可以把颜色值的R G B 拿到做响应的处理 159 int r = Color.red(color); 160 int g = Color.green(color); 161 int b = Color.blue(color); 162 int a = Color.alpha(color); 163 Log.i("123", "r=" + r + ",g=" + g + ",b=" + b); 164 tv_rgb.setText("a=" + a + ",r=" + r + ",g=" + g + ",b=" 165 + b + ",x=" + x + ",y=" + y); 166 tv_rgb.setTextColor(Color.rgb(r, g, b)); 167 // tv_se.setBackgroundColor(Color.rgb(r, g, b)); 168 } else if (event.getAction() == MotionEvent.ACTION_MOVE) { 169 int color = photo.getPixel(x, y); 170 // 如果你想做的更细致的话 可以把颜色值的R G B 拿到做响应的处理 171 int r = Color.red(color); 172 int g = Color.green(color); 173 int b = Color.blue(color); 174 int a = Color.alpha(color); 175 Log.i("123", "r=" + r + ",g=" + g + ",b=" + b); 176 tv_rgb.setText("a=" + a + ",r=" + r + ",g=" + g + ",b=" 177 + b + ",x=" + x + ",y=" + y); 178 tv_rgb.setTextColor(Color.rgb(r, g, b)); 179 // tv_se.setBackgroundColor(Color.rgb(r, g, b)); 180 } else if (event.getAction() == MotionEvent.ACTION_DOWN) { 181 int color = photo.getPixel(x, y); 182 // 如果你想做的更细致的话 可以把颜色值的R G B 拿到做响应的处理 183 int r = Color.red(color); 184 int g = Color.green(color); 185 int b = Color.blue(color); 186 int a = Color.alpha(color); 187 Log.i("123", "r=" + r + ",g=" + g + ",b=" + b); 188 tv_rgb.setText("a=" + a + ",r=" + r + ",g=" + g + ",b=" 189 + b + ",x=" + x + ",y=" + y); 190 tv_rgb.setTextColor(Color.rgb(r, g, b)); 191 // tv_se.setBackgroundColor(Color.rgb(r, g, b)); 192 } 193 } catch (Exception e) { 194 e.printStackTrace(); 195 } 196 197 return false; 198 } 199 }); 200 // rectOnCamera.setIIAutoFocus((KuangkuangView.IAutoFocus) this); 201 //定义DisplayMetrics 对象; 202 // DisplayMetrics dm = new DisplayMetrics(); 203 // //取得窗口属性 204 // getWindowManager().getDefaultDisplay().getMetrics(dm); 205 // //窗口的宽度 206 // int screenWidth = dm.widthPixels; 207 // //窗口高度 208 // int screenHeight = dm.heightPixels; 209 // 210 // //获取屏幕的百分之八的比例宽度(宽和高是根据业务需求可以自己自行设定的) 211 // width = (int) (screenWidth * 0.5); 212 // //获取屏幕的百分之7的比例高度 213 // height = (int) (screenHeight * 0.5); 214 mDrawIV.setMaskSize(width, height); 215 // capture() 216 217 } 218 219 220 @Override 221 protected void onPause() { 222 super.onPause(); 223 releaseCamera(); 224 } 225 226 private void releaseCamera() { 227 if (camera != null) { 228 camera.setPreviewCallback(null); 229 camera.stopPreview(); 230 camera.release(); 231 camera = null; 232 } 233 } 234 235 236 @Override 237 protected void onResume() { 238 super.onResume(); 239 if (camera == null) { 240 camera = getCamera(); 241 if (mHolder != null) { 242 setStartPreView(camera, mHolder); 243 } 244 } 245 } 246 247 private Camera getCamera() { 248 Camera camera; 249 try { 250 camera = Camera.open(); 251 } catch (Exception e) { 252 camera = null; 253 } 254 255 return camera; 256 } 257 258 private void setStartPreView(Camera camera, SurfaceHolder holder) { 259 try { 260 //把camera捕获到的图像显示在SurfaceView里 261 camera.setPreviewDisplay(holder); 262 //将预览效果横屏转为竖直的camera 263 camera.setDisplayOrientation(90); 264 camera.startPreview(); 265 } catch (IOException e) { 266 e.printStackTrace(); 267 } 268 } 269 270 @Override 271 public void surfaceCreated(SurfaceHolder surfaceHolder) { 272 //开始预览 273 274 setStartPreView(camera, mHolder); 275 } 276 277 @Override 278 public void surfaceChanged(SurfaceHolder surfaceHolder, int i, int i1, int i2) { 279 // 当改变时候，先停止预览 280 camera.stopPreview(); 281 //再次开始预览 282 setStartPreView(camera, mHolder); 283 } 284 285 @Override 286 public void surfaceDestroyed(SurfaceHolder surfaceHolder) { 287 // 释放掉相机 288 releaseCamera(); 289 } 290 291 public void capture(View view) { 292 293 Camera.Parameters parameters = camera.getParameters(); 294 295 parameters.setPictureFormat(ImageFormat.JPEG); 296 // 设定预览尺寸 297 parameters.setPreviewSize(900, 300); 298 // 对焦模式 自动 299 parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO); 300 // 自动对焦的回调 301 camera.autoFocus(new Camera.AutoFocusCallback() { 302 @Override 303 public void onAutoFocus(boolean success, Camera camera) { 304 if (success) { 305 // 自动对焦成功后，拍照，会走mPictureCallback回调 306 camera.takePicture(null, null, mPictureCallback); 307 } 308 } 309 }); 310 } 311 312 private Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() { 313 @Override 314 public void onPictureTaken(byte[] data, Camera camera) { 315 316 new saveTask().execute(data); 317 // String mFilePath = Environment.getExternalStorageDirectory().getPath(); 318 // mFilePath = mFilePath + "/" + "temp.png"; 319 // File tempFile = new File(mFilePath); 320 // 321 // try { 322 // // 拿着byte[] data，写入图片文件 323 // FileOutputStream fos = new FileOutputStream(tempFile); 324 // fos.write(data); 325 // fos.close(); 326 // 327 // // 我们将打开新的activity，把图片地址传递给下一个activity 328 // Intent intent = new Intent(Camera1Activity.this, ResultActivity.class); 329 // intent.putExtra("picPatch", tempFile.getAbsolutePath()); 330 // startActivity(intent); 331 // 332 // finish(); 333 // } catch (FileNotFoundException e) { 334 // e.printStackTrace(); 335 // } catch (IOException e) { 336 // e.printStackTrace(); 337 // } 338 } 339 }; 340 341 342 class saveTask extends AsyncTask<byte[], Void, Boolean> { 343 @Override 344 protected Boolean doInBackground(byte[]... params) { 345 byte[] photoData = params[0]; 346 savePicture(photoData); 347 return null; 348 } 349 } 350 351 Handler handler = new Handler() { 352 @Override 353 public void handleMessage(Message msg) { 354 super.handleMessage(msg); 355 iv.setImageBitmap(bitmap); 356 } 357 }; 358 359 private void savePicture(byte[] photoData) { 360 BitmapFactory.Options options = new BitmapFactory.Options(); 361 options.inTempStorage = new byte[100 * 1024]; 362 options.inPreferredConfig = Bitmap.Config.RGB_565; 363 options.inPurgeable = true; 364 options.inSampleSize = 12; 365 options.inInputShareable = true; 366 photo = BitmapFactory.decodeByteArray(photoData, 0, photoData.length, options); 367 // if (isqian) { 368 369 photo = ImageDispose.rotaingImageView(90, photo); 370 int pheight = photo.getHeight(); 371 int pwidth = photo.getWidth(); 372 float vh = (float) pheight / ((float) height * 2); 373 float vw = (float) pwidth / ((float) width * 2); 374 System.out.println(" width:" + width + ", height:" + height + ",vw " + vw + " , vh:" + vh + ",pheight"+pheight +", pwidth"+pwidth); 375 bitmap = Bitmap.createBitmap(photo, (int) (width * 2 * vw / 4), (int) (height * 2 * vh / 4), (int) (width * 2 * vw / 2), (int) (height * 2 * vh) / 4); 376 handler.sendEmptyMessage(0); 377 378 // } else { 379 // photo = ImageDispose.rotaingImageView(270, photo); 380 // } 381 // Matrix matrix = new Matrix(); 382 // matrix.preRotate(90); 383 // photo = Bitmap.createBitmap(photo, 0, 0, photo.getWidth(), photo.getHeight(), matrix, true); 384 // Message msg = Message.obtain(); 385 // msg.what = UPDTEPREVIEW; 386 // Bundle bundle = new Bundle(); 387 // bundle.putByteArray(UPDATEBITMAP, photoData); 388 // msg.setData(bundle); 389 // takeHandler.sendEmptyMessage(UPDTE_PREVIEW); 390 Calendar calendar = Calendar.getInstance(TimeZone.getDefault()); 391 SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd_HH-mm-ss-SSS", Locale.getDefault()); 392 String pictureName = format.format(calendar.getTime()); 393 // 存入系统相册 394 // currentPath = MediaStore.Images.Media.insertImage(getContentResolver(), photo, pictureName, "来自迈步手环"); 395 // LocalDataSaveTool.getInstance(TakePhotoActivity.this).writeSp(MyConfingInfo.PICTURE_NAME, luj); 396 // String filePath = MyConfingInfo.getSdcardPath() 397 // + File.separator + "Pictures" + File.separator + pictureName + ".jpg"; 398 // 存入系统相册 399 String filePathRoot = SDPathUtils.getSdcardPath() + 400 File.separator + "DCIM" + 401 File.separator + "Camera" + 402 File.separator; 403 // SimpleDateFormat timeStampFormat = new SimpleDateFormat( 404 // "yyyy_MM_dd_HH_mm_ss"); 405 // String filename = timeStampFormat.format(new Date()); 406 // ContentValues values = new ContentValues(); 407 // values.put(MediaStore.Audio.Media.TITLE, filename); 408 // 409 // photoUri = getContentResolver().insert( 410 // MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values); 411 // 412 File root = new File(filePathRoot); 413 if (!root.exists()) { 414 root.mkdirs(); 415 } 416 String filePath = filePathRoot + pictureName + ".jpg"; 417 File file = new File(filePath); 418 if (!file.exists()) { 419 try { 420 file.createNewFile(); 421 } catch (IOException e) { 422 e.printStackTrace(); 423 } 424 } 425 FileOutputStream fileOutputStream = null; 426 BufferedOutputStream outputStream = null; 427 try { 428 fileOutputStream = new FileOutputStream(file); 429 outputStream = new BufferedOutputStream(fileOutputStream); 430 outputStream.write(photoData); 431 } catch (IOException e) { 432 e.printStackTrace(); 433 try { 434 if (fileOutputStream != null) { 435 outputStream.flush(); 436 fileOutputStream.flush(); 437 } 438 if (fileOutputStream != null) { 439 fileOutputStream.close(); 440 outputStream.close(); 441 } 442 } catch (IOException es) { 443 es.printStackTrace(); 444 } 445 } finally { 446 try { 447 if (fileOutputStream != null) { 448 fileOutputStream.flush(); 449 if (outputStream != null) { 450 outputStream.flush(); 451 } 452 } 453 if (fileOutputStream != null) { 454 fileOutputStream.close(); 455 if (outputStream != null) { 456 outputStream.close(); 457 } 458 } 459 } catch (IOException e) { 460 e.printStackTrace(); 461 } 462 // currentPath = filePath; 463 } 464 Intent scanIntent; 465 Log.i("paizjap", "照片扫描路径：" + filePath); 466 467 File scanFile = new File(filePath); 468 // 我们将打开新的activity，把图片地址传递给下一个activity 469 // Intent intent = new Intent(Camera1Activity.this, ResultActivity.class); 470 // intent.putExtra("picPatch",filePath); 471 // startActivity(intent); 472 // if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { 473 // scanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.fromFile(scanFile)); 474 // } else { 475 // scanIntent = new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.fromFile(scanFile)); 476 // } 477 // sendBroadcast(scanIntent); 478 479 480 } 481 482 }
自定义相机 自动对焦我就不多说了啊 网上一搜一大堆哈!
在页面的布局上:使用
在FrameLayout内部
使用surfaceView来当作相机的画面
这时候我们就可以自定义一个DrawRectView边框 在布局中直接调用
DrawRectView
package com.ltfz.photo.photovalue.CustView;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.util.AttributeSet;
import android.widget.ImageView;
/**
* Created by love on 2019/10/14.
*/
public class DrawRectView extends ImageView{
private int width;
private int height;
private int maskWidth;
private int maskHeight;
private Paint linePaint;
public DrawRectView(Context context, int width){
super(context);
init();
}
public DrawRectView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public DrawRectView(Context context, AttributeSet attrs, int defStyleAttr, int width){
super(context, attrs, defStyleAttr);
init();
}
private void init() {
linePaint = new Paint();
linePaint.setAntiAlias(true);
linePaint.setColor(Color.RED);
linePaint.setStyle(Paint.Style.FILL);
linePaint.setStrokeWidth(8f);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int h = Math.abs((height - maskHeight) / 2);
int w = Math.abs((width - maskWidth) / 2);
// Log.i("myLog","w "+ w+" h " +h);
// //画矩形框的四个角
// //左上角
// canvas.drawLine(w, h, w + 30, h, linePaint);// _
// canvas.drawLine(w, h, w, h + 30, linePaint);// |
// //左下角
// canvas.drawLine(w, h + maskHeight, w, h + maskHeight - 30, linePaint);// |
// canvas.drawLine(w, h + maskHeight, w + 30, h + maskHeight, linePaint);// _
// //右上角
// canvas.drawLine(w + maskWidth, h, w + maskWidth - 30, h, linePaint);// _
// canvas.drawLine(w + maskWidth, h, w + maskWidth, h + 30, linePaint);// |
// //右下角
// canvas.drawLine(w + maskWidth, h + maskHeight, w + maskWidth, h + maskHeight - 30, linePaint);// |
// canvas.drawLine(w + maskWidth, h + maskHeight, w + maskWidth - 30, h + maskHeight, linePaint);// _
// 画矩形框的四个角
//左上角
canvas.drawLine(w, h, w + maskWidth, h, linePaint);// _
canvas.drawLine(w, h, w, h + maskHeight/2, linePaint);// |
//左下角
canvas.drawLine(w, h + maskHeight/2, w, h , linePaint);// |
canvas.drawLine(w, h + maskHeight/2, w+maskWidth , h + maskHeight/2, linePaint);// _
//右上角
canvas.drawLine(w + maskWidth, h, w, h, linePaint);// _
canvas.drawLine(w + maskWidth, h, w + maskWidth, h + maskHeight/2, linePaint);// |
//右下角
canvas.drawLine(w + maskWidth, h + maskHeight/2, w + maskWidth, h, linePaint);// |
canvas.drawLine(w + maskWidth, h + maskHeight/2, w , h + maskHeight/2, linePaint);// _
}
public void PixSize(Integer w, Integer h) {
width = w;
height = h;
}
public void setMaskSize(Integer widths, Integer heights) {
maskWidth = widths;
maskHeight = heights;
}
public int[] getMaskSize() {
return new MaskSize().size;
}
private class MaskSize {
private final int[] size;
private MaskSize() {
this.size = new int[]{maskWidth, maskHeight, width, height};
}
}
}
有啥不懂的可以下方留言解惑!