有没有经常使用拍照返回图片 ，裁剪图片，需要返回图片url的操作？
返回的图片不高清有没有
使用第三方的库包太累赘有么有 ？
自己太懒不想重写相机的有没有 ？
studou使用第三方的库，很多时候会因为隐痛相同的库而无法打包，有时候又找不到那个库 ， 让我苦不堪言 ，前段时间用的是google的相机库 ， 这个项目始终有相同的库，我又找不到 ， 最后只能考虑自己重写一个相机 。 嗯，还是勤快点，自己写吧
不贴源码地址了 ，几个类，贴代码出来
先把相关的权限贴出来 ，SD卡读写权限，相机权限
<uses-feature android:name="android.hardware.camera" android:required="false" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.CAMERA" /> <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" /> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /> <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" /> <uses-permission android:name="android.permission.GET_ACCOUNTS" /> <uses-permission android:name="android.permission.GET_TASKS" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" /> <uses-permission android:name="android.permission.READ_LOGS" /> <uses-permission android:name="android.permission.READ_PHONE_STATE" /> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> <uses-permission android:name="android.permission.RECORD_AUDIO" /> <uses-permission android:name="android.permission.VIBRATE" /> <uses-permission android:name="android.permission.WAKE_LOCK" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.BLUETOOTH" /> <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" /> <uses-permission android:name="android.permission.BROADCAST_STICKY" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" /> <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
activity_Cameral.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent"> <FrameLayout android:id="@+id/camera_preview" android:layout_width="match_parent" android:layout_height="match_parent" /> <ImageView android:id="@+id/btn_capture" android:layout_width="50dp" android:layout_height="50dp" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_margin="10dp" android:src="@drawable/ic_camera" /> <ImageView android:id="@+id/btn_switch_camera" android:layout_width="50dp" android:layout_height="50dp" android:layout_alignParentRight="true" android:layout_alignParentTop="true" android:layout_margin="10dp" android:src="@drawable/selector_switch_camera" /> </RelativeLayout>
图片的保存类工具类
package com.mirror.mobile.activity.camera; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Matrix; import android.hardware.Camera; import android.os.Handler; import android.util.Log; import com.mirror.mobile.config.ApInfo; import com.mirror.mobile.util.FileUtils; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; /** * Created by jsjm on 2017/12/9. */ public class PicSaveFile { public final String TAG = "CameraSimple"; public void saveImage(final int mCameraId, final byte[] data, final WritrFileListener listener) { Log.e(TAG, "=======拍照回掉==="); FileUtils.creatFileNotExciet(); new Thread(new Runnable() { @Override public void run() { try { String picturePath = ApInfo.IMAGE_URL + "/" + System.currentTimeMillis() + ".jpg"; File file = new File(picturePath); if (!file.exists()) { file.createNewFile(); } Log.e(TAG, "拍照回掉===0000000000000"); // 获取当前旋转角度, 并旋转图片 Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length); if (mCameraId == Camera.CameraInfo.CAMERA_FACING_BACK) { bitmap = rotateBitmapByDegree(bitmap, 90); } else { bitmap = rotateBitmapByDegree(bitmap, -90); } Log.e(TAG, "拍照回掉===111111111111111"); BufferedOutputStream bos = new BufferedOutputStream( new FileOutputStream(file)); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bos); bos.flush(); bos.close(); Log.e(TAG, "拍照回掉===222222222222222222"); bitmap.recycle(); Log.e(TAG, "拍照回掉===3333333333333333333"); backState(picturePath, true, listener); } catch (Exception e) { backState("", false, listener); Log.e(TAG, "拍照回掉异常===" + e.toString()); e.printStackTrace(); } } }).start(); } private Handler handler = new Handler(); public void backState(final String savePath, final boolean isSuccess, final WritrFileListener listener) { handler.post(new Runnable() { @Override public void run() { if (isSuccess) { listener.writeSuccess(savePath); } else { listener.writeFailed(); } } }); } // 旋转图片 public Bitmap rotateBitmapByDegree(Bitmap bm, int degree) { Bitmap returnBm = null; Matrix matrix = new Matrix(); matrix.postRotate(degree); try { returnBm = Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, true); } catch (OutOfMemoryError e) { } if (returnBm == null) { returnBm = bm; } if (bm != returnBm) { bm.recycle(); } return returnBm; } public interface WritrFileListener { void writeSuccess(String savePath); void writeFailed(); } }
自定义拍照界面
package com.mirror.mobile.activity.camera; import java.io.IOException; import android.content.Context; import android.hardware.Camera; import android.view.SurfaceHolder; import android.view.SurfaceView; public class CameraPreview extends SurfaceView implements SurfaceHolder.Callback { private SurfaceHolder mHolder; private Camera mCamera; public CameraPreview(Context context, Camera camera) { super(context); mCamera = camera; mHolder = getHolder(); mHolder.addCallback(this); mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } public void surfaceCreated(SurfaceHolder holder) { try { mCamera.setPreviewDisplay(holder); mCamera.startPreview(); } catch (IOException e) { e.printStackTrace(); } } public void surfaceDestroyed(SurfaceHolder holder) { } public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { if (mHolder.getSurface() == null) { return; } try { mCamera.stopPreview(); } catch (Exception e) { e.printStackTrace(); } try { mCamera.setPreviewDisplay(mHolder); mCamera.startPreview(); } catch (Exception e) { e.printStackTrace(); } } }
cameralActivity界面类
package com.mirror.mobile.activity.camera; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.pm.PackageManager; import android.hardware.Camera; import android.hardware.Camera.AutoFocusCallback; import android.hardware.Camera.CameraInfo; import android.hardware.Camera.PictureCallback; import android.os.Bundle; import android.util.Log; import android.view.MotionEvent; import android.view.Surface; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.widget.FrameLayout; import android.widget.ImageView; import android.widget.Toast; import com.cdl.dialog.WaitDialogUtil; import com.mirror.mobile.activity.BaseActivity; import com.mirror.mobile.activity.UpdateImageActivity; import com.mirror.mobile.view.MyToastView; import com.mirrormobile.R; import java.util.List; @SuppressWarnings("deprecation") public class CameraActivity extends BaseActivity { public static final String TAG = "CameraSimple"; private Camera mCamera; private CameraPreview mPreview; private FrameLayout mCameralayout; private ImageView mTakePictureBtn; private ImageView mSwitchCameraBtn; private int mCameraId = CameraInfo.CAMERA_FACING_BACK; WaitDialogUtil waitDialogUtil; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.activity_camera); if (!checkCameraHardware(this)) { Toast.makeText(CameraActivity.this, "相机不支持", Toast.LENGTH_SHORT) .show(); } else { openCamera(); initView(); setCameraDisplayOrientation(this, mCameraId, mCamera); } } private void initView() { waitDialogUtil = new WaitDialogUtil(CameraActivity.this); mTakePictureBtn = (ImageView) findViewById(R.id.btn_capture); mTakePictureBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mCamera.autoFocus(mAutoFocusCallback); } }); mSwitchCameraBtn = (ImageView) findViewById(R.id.btn_switch_camera); mSwitchCameraBtn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { switchCamera(); } }); } // 判断相机是否支持 private boolean checkCameraHardware(Context context) { if (context.getPackageManager().hasSystemFeature( PackageManager.FEATURE_CAMERA)) { return true; } else { return false; } } // 获取相机实例 public Camera getCameraInstance() { Camera c = null; try { c = Camera.open(mCameraId); } catch (Exception e) { e.printStackTrace(); } return c; } // 开始预览相机 public void openCamera() { if (mCamera == null) { mCamera = getCameraInstance(); Camera.Parameters parameters = mCamera.getParameters(); List<Camera.Size> list = parameters.getSupportedPictureSizes(); Camera.Size size = list.get(0); parameters.setPictureSize(size.width, size.height); mCamera.setParameters(parameters); mPreview = new CameraPreview(CameraActivity.this, mCamera); mPreview.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { mCamera.autoFocus(null); return false; } }); mCameralayout = (FrameLayout) findViewById(R.id.camera_preview); mCameralayout.addView(mPreview); mCamera.startPreview(); } } // 释放相机 public void releaseCamera() { try { if (mCamera != null) { mCamera.setPreviewCallback(null); mCamera.stopPreview(); mCamera.release(); mCamera = null; } } catch (Exception e) { } } PicSaveFile fileSaveFile; // 拍照回调 private PictureCallback mPictureCallback = new PictureCallback() { @Override public void onPictureTaken(final byte[] data, Camera camera) { waitDialogUtil.showDialog("图片保存"); if (fileSaveFile == null) { fileSaveFile = new PicSaveFile(); } fileSaveFile.saveImage(mCameraId, data, new PicSaveFile.WritrFileListener() { @Override public void writeSuccess(String savePath) { waitDialogUtil.dismiss(); Intent mIntent = new Intent(); mIntent.putExtra(UpdateImageActivity.TAG_CAMERAL_BACK, savePath); setResult(UpdateImageActivity.REQUEST_CODE_CAMERA, mIntent); finish(); } @Override public void writeFailed() { waitDialogUtil.dismiss(); MyToastView.getInstance().Toast(CameraActivity.this, "图片保存失败"); mCamera.startPreview(); } }); } }; // 设置相机横竖屏 public void setCameraDisplayOrientation(Activity activity, int cameraId, Camera camera) { CameraInfo info = new CameraInfo(); Camera.getCameraInfo(cameraId, info); int rotation = activity.getWindowManager().getDefaultDisplay() .getRotation(); int degrees = 0; switch (rotation) { case Surface.ROTATION_0: degrees = 0; break; case Surface.ROTATION_90: degrees = 90; break; case Surface.ROTATION_180: degrees = 180; break; case Surface.ROTATION_270: degrees = 270; break; } int result; if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { result = (info.orientation + degrees) % 360; result = (360 - result) % 360; } else { result = (info.orientation - degrees + 360) % 360; } camera.setDisplayOrientation(result); } // 切换前置和后置摄像头 public void switchCamera() { CameraInfo cameraInfo = new CameraInfo(); Camera.getCameraInfo(mCameraId, cameraInfo); if (cameraInfo.facing == CameraInfo.CAMERA_FACING_BACK) { mCameraId = CameraInfo.CAMERA_FACING_FRONT; } else { mCameraId = CameraInfo.CAMERA_FACING_BACK; } mCameralayout.removeView(mPreview); releaseCamera(); openCamera(); setCameraDisplayOrientation(CameraActivity.this, mCameraId, mCamera); } // 聚焦回调 private AutoFocusCallback mAutoFocusCallback = new AutoFocusCallback() { @Override public void onAutoFocus(boolean success, Camera camera) { Log.e(TAG, "聚焦成功====" + success); if (success) { mCamera.takePicture(null, null, mPictureCallback); } } }; @Override protected void onDestroy() { super.onDestroy(); releaseCamera(); } }
界面调用的类
Intent intent = new Intent(UpdateImageActivity.this, CameraActivity.class); startActivityForResult(intent, REQUEST_CODE_CAMERA);
@Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); Uri uri = null; if (requestCode == REQUEST_CODE_CAMERA) { //拍照返回数据 String savePath = data.getStringExtra(TAG_CAMERAL_BACK); File file = new File(savePath); if (!file.exists()) { MyToastView.getInstance().Toast(UpdateImageActivity.this, "文件不存在，请重新操作"); return; }//下面是裁剪的工具 uri = Utils.getImageContentUri(UpdateImageActivity.this, file); Utils.getInstance().cropPicture(this, uri); }