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package com.hand.face.utils;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Matrix;
import android.media.ExifInterface;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
public class FaceUtil {
public final static int REQUEST_PICTURE_CHOOSE = 1;
public final static int REQUEST_CAMERA_IMAGE = 2;
public final static int REQUEST_CROP_IMAGE = 3;
/***
* 裁剪图片
* @param activity Activity
* @param uri 图片的Uri
*/
public static void cropPicture(Activity activity, Uri uri) {
Intent innerIntent = new Intent("com.android.camera.action.CROP");
innerIntent.setDataAndType(uri, "image/*");
innerIntent.putExtra("crop", "true");// 才能出剪辑的小方框，不然没有剪辑功能，只能选取图片
innerIntent.putExtra("aspectX", 1); // 放大缩小比例的X
innerIntent.putExtra("aspectY", 1);// 放大缩小比例的X 这里的比例为： 1:1
innerIntent.putExtra("outputX", 320); //这个是限制输出图片大小
innerIntent.putExtra("outputY", 320);
innerIntent.putExtra("return-data", true);
// 切图大小不足输出，无黑框
innerIntent.putExtra("scale", true);
innerIntent.putExtra("scaleUpIfNeeded", true);
File imageFile = new File(getImagePath(activity.getApplicationContext()));
innerIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(imageFile));
innerIntent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
activity.startActivityForResult(innerIntent, REQUEST_CROP_IMAGE);
}
/**
* 保存裁剪的图片的路径
* @return
*/
public static String getImagePath(Context context){
String path;
if(!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
path = context.getFilesDir().getAbsolutePath();
} else {
path = Environment.getExternalStorageDirectory().getAbsolutePath() + "/msc/";
}
if(!path.endsWith("/")) {
path += "/";
}
File folder = new File(path);
if (folder != null && !folder.exists()) {
folder.mkdirs();
}
path += "ifd.jpg";
return path;
}
/**
* 读取图片属性：旋转的角度
*
* @param path 图片绝对路径
* @return degree 旋转角度
*/
public static int readPictureDegree(String path) {
int degree = 0;
try {
ExifInterface exifInterface = new ExifInterface(path);
int orientation = exifInterface.getAttributeInt(
ExifInterface.TAG_ORIENTATION,
ExifInterface.ORIENTATION_NORMAL);
switch (orientation) {
case ExifInterface.ORIENTATION_ROTATE_90:
degree = 90;
break;
case ExifInterface.ORIENTATION_ROTATE_180:
degree = 180;
break;
case ExifInterface.ORIENTATION_ROTATE_270:
degree = 270;
break;
}
} catch (IOException e) {
e.printStackTrace();
}
return degree;
}
/**
* 旋转图片
*
* @param angle 旋转角度
* @param bitmap 原图
* @return bitmap 旋转后的图片
*/
public static Bitmap rotateImage(int angle, Bitmap bitmap) {
// 图片旋转矩阵
Matrix matrix = new Matrix();
matrix.postRotate(angle);
// 得到旋转后的图片
Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0,
bitmap.getWidth(), bitmap.getHeight(), matrix, true);
return resizedBitmap;
}
/**
* 保存Bitmap至本地
*/
public static void saveBitmapToFile(Context context,Bitmap bmp){
String file_path = getImagePath(context);
File file = new File(file_path);
FileOutputStream fOut;
try {
fOut = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.JPEG, 85, fOut);
fOut.flush();
fOut.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}