android拍照相册工具类

package com.zwk.ezandroid.util;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Environment;
import android.provider.MediaStore;
import android.widget.Toast;


import java.io.File;

import static android.app.Activity.RESULT_CANCELED;

/**
 *  拍照，照片选取，裁剪，统一封装
 */
public class WKCameraUtil {

    private static final int CAMERA_CODE = 1;
    private static final int GALLERY_CODE = 2;
    private static final int CROP_CODE = 3;
    public Activity act;

    private File photoFile;
    private Uri photoUri;

    public WKCameraUtil(Activity act){
//        this(act,new File(App.getInstance().getExternalCacheDir(), "ezandroid\tempPhoto.jpg"));
        this(act,new File(App.DirectoryImagePersonPhoto, "tempPhoto.jpg"));
    }
    public WKCameraUtil(Activity act, File file){
        this.act=act;
        photoFile = file;
    }

    public void start(){
        String[] type = { act.getResources().getString(R.string.GENERAL_CAMERA),
                act.getResources().getString(R.string.GENERAL_SELECT_PICTURE) };
        new AlertDialog.Builder(act).setItems(type,
                new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        String state = Environment.getExternalStorageState();
                        if (!state.equals(Environment.MEDIA_MOUNTED)) {
                            Toast.makeText(act, "SDCard不可用，请打开文件读取权限", Toast.LENGTH_SHORT).show();
                            dialog.dismiss();
                            return;
                        }
                        switch (which) {
                            case 0:
                                chooseFromCamera();
                                break;
                            case 1:
                                chooseFromGallery();
                                break;
                        }
                    }
                }).show();
    }

    /**
     * 从相册选择图片
     */
    private void chooseFromGallery() {
        photoUri = Uri.fromFile(photoFile);
        Intent intent = new Intent(Intent.ACTION_PICK);
        intent.setData(MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
        intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        act.startActivityForResult(intent, GALLERY_CODE);
    }

    // 拍照选择图片
    private void chooseFromCamera() {
        // 调用系统相机
        photoUri = FileUtil.getUriByFile(photoFile);
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);
        intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
        intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        act.startActivityForResult(intent, CAMERA_CODE);
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data, WKCallback call) {
        if (resultCode == RESULT_CANCELED) {
            T.toast("取消");
            return;
        }
        switch (requestCode) {
            case CAMERA_CODE:
                startImageZoom(photoUri);
                break;
            case GALLERY_CODE:
                startImageZoom(data.getData());
                break;
            case CROP_CODE:
                call.onCall(Uri.fromFile(photoFile));
                break;
            default:
                break;
        }
    }

    /**
     * 通过Uri传递图像信息以供裁剪
     * @param uri
     */
    private void startImageZoom(Uri uri) {
        // 构建隐式Intent来启动裁剪程序
        Intent intent = new Intent("com.android.camera.action.CROP");
        // 设置数据uri和类型为图片类型
        intent.setDataAndType(uri, "image/*");
        intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
        intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        // 显示View为可裁剪的
        intent.putExtra("crop", true);
        // 裁剪的宽高的比例为1:1
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        // 输出图片的宽高均为150
        intent.putExtra("outputX", 150);
        intent.putExtra("outputY", 150);
        intent.putExtra("output", Uri.fromFile(photoFile));
        // 裁剪之后的数据是通过Intent返回
        intent.putExtra("return-data", false);
        act.startActivityForResult(intent, CROP_CODE);
    }
    
    public interface WKCallback<T>{
        void onCall(T t);
    }
}
           

使用方式：

WKCameraUtil wkCamera;

private OnClickListener linstener = new OnClickListener() {
	@Override
	public void onClick(View v) {
		switch (v.getId()) {
		case R.id.iv_person_photo:
			wkCamera = new WKCameraUtil(this);
			//wkCamera = new WKCameraUtil(this,new File("文件保存路径"));
			wkCamera.start();
		break;
		}
	}
};
 
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
	wkCamera.onActivityResult(requestCode,resultCode,data,new WKCameraUtil.WKCallback() {
		@Override
		public void onCall(Uri photoUri) {
			Bitmap resultBitmap = BitmapUtil.getBitmap(photoUri, PersonCenterActivity.this);
		}
	});
}

public static Bitmap getBitmap(Uri photoUri, Context context) {
	BitmapFactory.Options options = new BitmapFactory.Options();
	options.inPreferredConfig = Bitmap.Config.RGB_565;
	options.inPurgeable = true;
	options.inInputShareable = true;
	options.inPreferredConfig = Config.RGB_565;
	InputStream inputStream = null;
	Bitmap resultBitmap = null;
	try {
		inputStream = context.getContentResolver()
				.openInputStream(photoUri);
		resultBitmap = BitmapFactory.decodeStream(inputStream, null, options);
	} catch (FileNotFoundException e) {
		e.printStackTrace();
	} finally {
		if (null!=inputStream) {
			try {
				inputStream.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}
	return srcBitmap;
}