package com.weikou.beibeivideo.util;
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import java.io.FileNotFoundException;
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import android.app.Activity;
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import android.content.Context;
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import android.content.Intent;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.net.Uri;
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import android.os.Environment;
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import android.provider.MediaStore;
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import android.widget.Toast;
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/**
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* 选择本地图片工具类 <br>
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* 因为直接获取图片容易崩溃，所以直接存入SD卡，再获取 <br>
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* 又因为写法不正确容易导致部分机型无法使用，所以封装起来复用 <br>
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* 使用方法： <br>
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* 1、调用getByAlbum、getByCamera去获取图片 <br>
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* 2、在onActivityResult中调用本工具类的onActivityResult方法进行处理 <br>
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* 3、onActivityResult返回的Bitmap记得空指针判断
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*
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* <br>
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* <br>
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* PS：本工具类只能处理裁剪图片，如果不想裁剪，不使用本工具类的onActivityResult，自己做处理即可
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*
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* @author linin630
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*
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*/
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public class SelectPicUtil {
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/** 临时存放图片的地址，如需修改，请记得创建该路径下的文件夹 */
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private static final String lsimg = "file:///sdcard/temp.jpg";
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public static final int GET_BY_ALBUM = 801;// 如果有冲突，记得修改
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public static final int GET_BY_CAMERA = 802;// 如果有冲突，记得修改
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public static final int CROP = 803;// 如果有冲突，记得修改
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/** 从相册获取图片 */
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public static void getByAlbum(Activity act) {
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Intent getAlbum = new Intent(Intent.ACTION_GET_CONTENT);
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getAlbum.setType("image/*");
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act.startActivityForResult(getAlbum, GET_BY_ALBUM);
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}
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/** 通过拍照获取图片 */
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public static void getByCamera(Activity act) {
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String state = Environment.getExternalStorageState();
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if (state.equals(Environment.MEDIA_MOUNTED)) {
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Intent getImageByCamera = new Intent(
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MediaStore.ACTION_IMAGE_CAPTURE);
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getImageByCamera
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.putExtra(MediaStore.EXTRA_OUTPUT, Uri.parse(lsimg));
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getImageByCamera.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 0);
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act.startActivityForResult(getImageByCamera, GET_BY_CAMERA);
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} else {
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Toast.makeText(act, "请确认已经插入SD卡", Toast.LENGTH_LONG).show();
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}
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}
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/**
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* 处理获取的图片，注意判断空指针，默认大小480*480，比例1:1
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*/
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public static Bitmap onActivityResult(Activity act, int requestCode,
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int resultCode, Intent data) {
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return onActivityResult(act, requestCode, resultCode, data, 0, 0, 0, 0);
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}
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/**
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* 处理获取的图片，注意判断空指针
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*/
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public static Bitmap onActivityResult(Activity act, int requestCode,
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int resultCode, Intent data, int w, int h, int aspectX, int aspectY) {
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Bitmap bm = null;
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if (resultCode == Activity.RESULT_OK) {
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Uri uri = null;
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switch (requestCode) {
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case GET_BY_ALBUM:
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uri = data.getData();
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act.startActivityForResult(crop(uri, w, h, aspectX, aspectY),
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CROP);
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break;
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case GET_BY_CAMERA:
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uri = Uri.parse(lsimg);
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act.startActivityForResult(crop(uri, w, h, aspectX, aspectY),
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CROP);
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break;
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case CROP:
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bm = dealCrop(act);
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break;
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}
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}
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return bm;
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}
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/** 默认裁剪输出480*480，比例1:1 */
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public static Intent crop(Uri uri) {
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return crop(uri, 480, 480, 1, 1);
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}
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/**
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* 裁剪，例如：输出100*100大小的图片，宽高比例是1:1
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*
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* @param w
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* 输出宽
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* @param h
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* 输出高
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* @param aspectX
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* 宽比例
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* @param aspectY
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* 高比例
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*/
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public static Intent crop(Uri uri, int w, int h, int aspectX, int aspectY) {
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if (w == 0 && h == 0) {
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w = h = 480;
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}
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if (aspectX == 0 && aspectY == 0) {
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aspectX = aspectY = 1;
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}
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Intent intent = new Intent("com.android.camera.action.CROP");
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// 照片URL地址
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intent.setDataAndType(uri, "image/*");
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intent.putExtra("crop", "true");
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intent.putExtra("aspectX", aspectX);
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intent.putExtra("aspectY", aspectY);
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intent.putExtra("outputX", w);
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intent.putExtra("outputY", h);
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// 输出路径
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intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.parse(lsimg));
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// 输出格式
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intent.putExtra("outputFormat", "JPEG");
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// 不启用人脸识别
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intent.putExtra("noFaceDetection", true);
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intent.putExtra("return-data", false);
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return intent;
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}
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/** 处理裁剪，获取裁剪后的图片 */
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public static Bitmap dealCrop(Context context) {
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// 裁剪返回
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Uri uri = Uri.parse(lsimg);
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Bitmap bitmap = null;
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try {
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bitmap = BitmapFactory.decodeStream(context.getContentResolver()
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.openInputStream(uri));
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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}
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return bitmap;
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}
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}
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