引用
1、Android7.0 头像 拍照、照片裁剪
2、联合使用：Android 仿IOS的PopupWindow和通用BasePopupWindow搭建
截图
实现
1、功能步骤
- 1.1、相机和相册使用到的权限
- 1.2、打开相机、打开相册
- 1.3、相机拍照回调、相册选取回调
- 1.4、两种不同方式回调后的uri使用并开启剪裁
- 1.5、剪裁图片回调、展示图片（各种样式）
- 1.6、其他注意：android 7.0 后的共享文件FileProvider配置等
2、工具类
- 2.1、此工具类不一定符合所有业务，可自行扩展或者弄成接口类来完成各种功能
- 2.2、使用相机：注意android 7.0的fileprovider来获取uri，完成拍照存储
- 2.3、使用相册：注意ACTION_PICK和ACTION_GET_CONTENT的区别，并在不同api下返回的uri值不一样导致“无法加载图片”的问题，代码中写了注释
- 2.4、相机图片剪裁：注意要加上intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);作为图片来源加载在剪切图中
- 2.5、相册图片剪裁：不用加【2.4】内容
- 2.6、剪裁输出源：可直接intent.putExtra("return-data", true);返回直接是bitmap有可能导致oom，还是设置false，然后靠uri来指向输出源比较好
/**
* Created by wujn on 2018/10/31.
* Version : v1.0
* Function: crop photo by camera or album
*/
public class CropPhotoHelper {
private Activity instance;
// 裁剪后图片的宽(X)和高(Y),320 X 320的正方形。
private static int output_X = 480;
private static int output_Y = 480;
private String localUserImgName ; //原始拍照图片
private String localUserImgPath;
private Uri takePhotoUri; //拍照的uri
private String localUserCropImgName; //最后的剪裁图片
private String localUserCropImgPath;
private Uri localUserIconUri; //用户头像图片uri
private String parentDir; //父目录
public CropPhotoHelper(Activity instance, String localUserImgName, String localUserCropImgName, String parentDir){
this.instance = instance;
this.localUserImgName = localUserImgName;
this.localUserImgPath = parentDir + localUserImgName;
this.localUserCropImgName = localUserCropImgName;
this.localUserCropImgPath = parentDir + localUserCropImgName;
this.parentDir = parentDir;
}
/**
* 拍照
* uri = content://.fileprovider/external_storage_root/xxx/xxx.jpg
* */
public void takePhoto(boolean isDeleteOld, int requestCode){
FileUtil.mkDir(parentDir);
File tmpFile=new File(localUserImgPath); //固定的，用户图片
//删除旧的
if (isDeleteOld) {
try {
if (tmpFile.exists()) {
tmpFile.delete();//删除
}
tmpFile.createNewFile();
} catch (Exception e) {
e.printStackTrace();
}
}
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N) {
takePhotoUri = Uri.fromFile(tmpFile);
}else{
takePhotoUri = FileProvider.getUriForFile(instance, Constant.FileProviderValue, tmpFile);
}
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, takePhotoUri);
//intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
//intent.putExtra(MediaStore.Images.Media.ORIENTATION, 0);
//intent.putExtra("aspectX", 4);
//intent.putExtra("aspectY", 3);
//intent.putExtra(MediaStore.EXTRA_SIZE_LIMIT, 120 * 1024);
//intent.putExtra("return-data", true);
instance.startActivityForResult(intent, requestCode);
}
/**
* 打开相册
* 1、Intent.ACTION_PICK,null :
* uri=content://media/external/images/media/86916
*
* 2、Intent.ACTION_GET_CONTENT :
* （1）<=4.3 : uri 返回的是带文件路径的
* （2）>4.3 : uri 返回content://com.android.providers.media.documents/document/image:3951
* 这样的,没有路径,只有图片编号的uri.这就导致接下来无法根据图片路径来裁剪的步骤了.
* */
public void openAlbum(int requestCode){
//method 1
// Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
// intent.setType("image/*");
//method 2
Intent intent = new Intent(Intent.ACTION_PICK);
//intent.setType("image*//*");
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*");
instance.startActivityForResult(intent,requestCode);//打开相册
}
/**
* 从相机拍照的图片剪裁
* */
public void cropRawByCamera(int requestCode){
LogUtil.i("cropRawByCamera inputUri="+ takePhotoUri.toString());
Intent intent = getCropImgIntent();
//输入原始图片：来源于拍照
if(takePhotoUri != null){
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
intent.setDataAndType(takePhotoUri, "image/*");
}
instance.startActivityForResult(intent, requestCode);
}
/**
* 从相册图片剪裁
* */
public void cropRawByAlbum(Uri inputUri, int requestCode){
LogUtil.i("cropRawByAlbum inputUri="+ inputUri.toString());
Intent intent = getCropImgIntent();
//输入原始图片：来源于相册
if(inputUri != null){
//intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
intent.setDataAndType(inputUri, "image/*");
}
instance.startActivityForResult(intent, requestCode);
}
/**
* 裁剪原始的图片意图
*/
private Intent getCropImgIntent(){
//剪裁action
Intent intent = new Intent("com.android.camera.action.CROP");
// 设置裁剪
intent.putExtra("crop", "true");
// aspectX , aspectY :宽高的比例
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
// outputX , outputY : 裁剪图片宽高
intent.putExtra("outputX", output_X);
intent.putExtra("outputY", output_Y);
intent.putExtra("scale",true);
// 返回类型和文件指向
// return data is bitmap , maybe oom
//intent.putExtra("return-data", true); //返回bitmap
intent.putExtra("return-data", false); //返回uri
//输出剪裁图片
File cropFile = new File(localUserCropImgPath);
try {
if (cropFile.exists()){
cropFile.delete();//删除
}
cropFile.createNewFile();
} catch (Exception e) {
e.printStackTrace();
}
localUserIconUri = Uri.fromFile(cropFile);
if (localUserIconUri != null) {
//intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
intent.putExtra(MediaStore.EXTRA_OUTPUT, localUserIconUri);
}
//取消人脸识别
intent.putExtra("noFaceDetection", true);
//压缩图片
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
return intent;
}
/**
* 获取剪切后的bitmap
* */
public Bitmap getCropBitmap(){
try {
return BitmapFactory.decodeStream(instance.getContentResolver().openInputStream(localUserIconUri));
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
}
}
//获取剪裁后的路径
public String getLocalUserCropImgPath() {
return localUserCropImgPath;
}
}
3、使用
/**
* 权限访问请求code
* */
public static final int REQUEST_PERMISSION_CODE = 1;
public static final int REQUEST_PERMISSION_CODE_1 = 2;
/**
* ActivityResult回调的请求code
* */
public static final int REQUEST_TACKPIC_CODE = 10001; //相机
public static final int REQUEST_CHOOSE_PHOTO_CODE = 10002; //相册
public static final int REQUEST_CROP_IMAGE_CODE = 10003; //剪裁图片
- 3.2、使用相机和相册的权限询问
- 3.3、按照【1】所说的步骤来使用
- 3.4、图片最后使用了AvatarImageView来加载图片，这个剪裁图片加载就不再这里写了，可以使用的方法巨多...
//剪裁帮助类
private CropPhotoHelper cropPhotoHelper;
@BindView(R.id.avatar_img) AvatarImageView avatar_img;
@Override
protected void init() {
//剪裁帮助类：原始图片，剪裁图片，父目录
cropPhotoHelper = new CropPhotoHelper(instance,
"img_org.jpg",
"img_crop.jpg",
Constant.IMG_DIR);
}
//拍照取图
public void OnSelectCamera(View v){
if (EasyPermissions.hasPermissions(instance, permissions_camear)) {
cropPhotoHelper.takePhoto(false, Constant.REQUEST_TACKPIC_CODE);
}else{
EasyPermissions.requestPermissions(instance, "App 运行需要获取权限",Constant.REQUEST_PERMISSION_CODE, permissions_camear);
}
}
//相册取图
public void OnSelectAlbum(View v){
if (EasyPermissions.hasPermissions(instance, permissions_album)) {
cropPhotoHelper.openAlbum(Constant.REQUEST_CHOOSE_PHOTO_CODE);
}else{
EasyPermissions.requestPermissions(instance, "App 运行需要获取权限",Constant.REQUEST_PERMISSION_CODE_1, permissions_album);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
switch (requestCode) {
//拍照回调
case Constant.REQUEST_TACKPIC_CODE:
LogUtil.d("take picture success");
cropPhotoHelper.cropRawByCamera(Constant.REQUEST_CROP_IMAGE_CODE);
break;
//选择照片回调
case Constant.REQUEST_CHOOSE_PHOTO_CODE:
LogUtil.d("choose picture success");
if (data != null) {
//不同api下获取相册图片的path
//String photoPath = AppUtil.getPhotoPath(instance, data);
cropPhotoHelper.cropRawByAlbum(data.getData(),Constant.REQUEST_CROP_IMAGE_CODE);
} else {
ToastUtil.showShort(instance,"相册无返回值！");
}
break;
//剪裁完
case Constant.REQUEST_CROP_IMAGE_CODE:
Bitmap bitmap = cropPhotoHelper.getCropBitmap();
if(bitmap != null){
avatar_img.setBitmap(bitmap);
}else{
ToastUtil.showShort(instance,"剪裁失败！");
}
break;
default:
break;
}
}
}
//=============================================权限部分=====================================================
//相机权限
private String[] permissions_camear = {
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.CAMERA
};
//文件权限
private String[] permissions_album = {
Manifest.permission.WRITE_EXTERNAL_STORAGE
};
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
EasyPermissions.onRequestPermissionsResult(requestCode, permissions, grantResults, this);
}
@Override
public void onPermissionsGranted(int requestCode, @NonNull List<String> perms) {
LogUtil.i("onPermissionsGranted requestCode="+requestCode);
if(Constant.REQUEST_PERMISSION_CODE == requestCode){
cropPhotoHelper.takePhoto(false, Constant.REQUEST_TACKPIC_CODE);
}
else if(Constant.REQUEST_PERMISSION_CODE_1 == requestCode){
cropPhotoHelper.openAlbum(Constant.REQUEST_CHOOSE_PHOTO_CODE);
}
}
@Override
public void onPermissionsDenied(int requestCode, @NonNull List<String> perms) {
DialogUtil.errorDialog(instance,"拒绝开启，请前往APP应用设置中打开此权限");
}
哈哈，朝CV工程师在进一步！！！！
