方法1

新建/res/xml/file_paths:

 

<?xml version="1.0" encoding="utf-8"?> <paths xmlns:android="http://schemas.android.com/apk/res/android"> <external-path name="external_files" path="."/> </paths>

配置manifest文件

 

 

<provider android:name="android.support.v4.content.FileProvider" android:authorities="com.hunuo.yohoo.provider" //com.hunuo.yohoo=包名 android:exported="false" android:grantUriPermissions="true"> <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/provider_paths"/> </provider>

开始拍照

Intent openCameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); //系统常量， 启动相机的关键 startActivityForResult(openCameraIntent, REQUEST_CODE_TAKE_PICTURE); // 参数常量为自定义的request code, 在取返回结果时有用

 

拍照返回图片

Bitmap bm = (Bitmap) data.getExtras().get("data"); // savePath = FileUtil.saveBitmap(bm); sczimage.setImageBitmap(bm);

裁剪图片

private void crop(file filePhoto) { // cropImagePath = file.getAbsolutePath(); Intent intent = new Intent("com.android.camera.action.CROP"); intent.setDataAndType(getImageContentUri(filePhoto), "image/*"); intent.putExtra("crop", "true"); intent.putExtra("aspectX", 300); intent.putExtra("aspectY", 300); intent.putExtra("outputX", 300); intent.putExtra("outputY", 300); intent.putExtra("scale", true); intent.putExtra("return-data", false); intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(filePhoto)); intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString()); intent.putExtra("noFaceDetection", true); startActivityForResult(intent, RESULT_REQUEST_CODE); }

3、解决三星手机拍照屏幕旋转问题

在activity下面添加

<activity android:name=".activitys.SfzShiBieActivity"     android:configChanges="keyboardHidden|orientation|screenSize"></activity>  

 

或者

 

解决办法2：

在Application的onCreat()方法中添加以下代码：

// android 7.0系统解决拍照的问题 StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder(); StrictMode.setVmPolicy(builder.build()); builder.detectFileUriExposure();

 

判断相机

CameraManager manager = (CameraManager) getContext().getSystemService(Context.CAMERA_SERVICE); String[] cameraIds = new String[0]; try { cameraIds = manager.getCameraIdList(); } catch (CameraAccessException e) { e.printStackTrace(); } if (cameraIds != null && cameraIds.length > 0) { }else { showMyToast("请接入摄像头！"); }