系统相册和拍照图片进行裁剪保存
直接上例子吧,折腾了一上午,就整理出这点东西,这年头,知识挺贵的:)

package com.example.album;import java.io.ByteArrayOutputStream;import java.io.File;import android.app.Activity;import android.content.Intent;import android.graphics.Bitmap;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.provider.MediaStore;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.ImageView;public class SysAlbumActivity extends Activity {public static final int NONE = 0;public static final int PHOTO_CAPTURE = 1;public static final int PHOTO_ALBUM = 2;public static final int PHOTO_CUT = 3;public static final String IMAGE_UNSPECIFIED = "image/*";public ImageView imageView = null;public Button mAlbumBtn = null;public Button mCaptureBtn = null;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);imageView = (ImageView) findViewById(R.id.imageID);mAlbumBtn = (Button) findViewById(R.id.mAlbumBtn);mCaptureBtn = (Button) findViewById(R.id.mCaptureBtn);mAlbumBtn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Intent intent = new Intent(Intent.ACTION_PICK, null);intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, IMAGE_UNSPECIFIED);startActivityForResult(intent, PHOTO_ALBUM);}});mCaptureBtn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "temp.jpg")));startActivityForResult(intent, PHOTO_CAPTURE);}});}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if (resultCode == NONE)return;/** 拍照 */if (requestCode == PHOTO_CAPTURE) {/** 设置文件保存路径这里放在跟目录下 */File picture = new File(Environment.getExternalStorageDirectory() + "/temp.jpg");startPhotoZoom(Uri.fromFile(picture));}if (data == null)return;/** 读取相册缩放图片 */if (requestCode == PHOTO_ALBUM) {startPhotoZoom(data.getData());}if (requestCode == PHOTO_CUT) {Bundle extras = data.getExtras();if (extras != null) {Bitmap photo = extras.getParcelable("data");ByteArrayOutputStream stream = new ByteArrayOutputStream();photo.compress(Bitmap.CompressFormat.JPEG, 75, stream);imageView.setImageBitmap(photo);}}super.onActivityResult(requestCode, resultCode, data);}/** 进行图片的裁剪操作. */public void startPhotoZoom(Uri uri) {Intent intent = new Intent("com.android.camera.action.CROP");intent.setDataAndType(uri, IMAGE_UNSPECIFIED);intent.putExtra("crop", "true");// aspectX aspectY 是宽高的比例intent.putExtra("aspectX", 1);intent.putExtra("aspectY", 1);// outputX outputY 是裁剪图片宽高intent.putExtra("outputX", 64);intent.putExtra("outputY", 64);intent.putExtra("return-data", true);startActivityForResult(intent, PHOTO_CUT);}}