Android24以上拍照代码

  public void takePic(){
        //创建File对象，用于存储拍照后的照片
        File outputImage = new File(getExternalCacheDir(),"output_image.jpg");
        try {
            if (outputImage.exists()){
                outputImage.delete();
            }
            outputImage.createNewFile();
        }catch (IOException e){
            e.printStackTrace();
        }
        if (Build.VERSION.SDK_INT >= 24){
            imageUri = FileProvider.getUriForFile(AddNewActivity.this,"com.example.cameraalbumtest.fileprovider",outputImage);
        }else {
            imageUri = Uri.fromFile(outputImage);
        }
        //启动相机程序
        Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
        intent.putExtra(MediaStore.EXTRA_OUTPUT,imageUri);
        startActivityForResult(intent,TAKE_PHOTO);
    }

还有Manifest文件

 <provider
            android:name="android.support.v4.content.FileProvider"
            android:authorities="com.example.cameraalbumtest.fileprovider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/file_paths" />
        </provider>

xml文件

<paths>
    <external-path name="takpic_img_path" path="Pics"/>
</paths>