import android.app.Activity;
import android.content.ContentValues;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;public class SelectPhotoActivity extends Activity implements OnClickListener {/** 使用照相机拍照获取图片 */public static final int SELECT_PIC_BY_TACK_PHOTO = 1;/** 使用相册中的图片 */public static final int SELECT_PIC_BY_PICK_PHOTO = 2;/** 开启相机 */private Button btn_take_photo;/** 开启图册 */private Button btn_pick_photo;/** 取消 */private Button btn_cancel;/** 获取到的图片路径 */private String picPath;private Intent lastIntent;private Uri photoUri;/** 从Intent获取图片路径的KEY */public static final String KEY_PHOTO_PATH = "photo_path";@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_select_photo);btn_take_photo = (Button) findViewById(R.id.btn_take_photo);btn_pick_photo = (Button) findViewById(R.id.btn_pick_photo);btn_cancel = (Button) findViewById(R.id.btn_cancel);lastIntent = getIntent();btn_take_photo.setOnClickListener(this);btn_pick_photo.setOnClickListener(this);btn_cancel.setOnClickListener(this);}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.btn_take_photo : // 开启相机takePhoto();break;case R.id.btn_pick_photo : // 开启图册pickPhoto();break;case R.id.btn_cancel : // 取消操作this.finish();break;default :break;}}private void takePhoto() {//  执行拍照前，应该先判断SD卡是否存在String SDState = Environment.getExternalStorageState();if (SDState.equals(Environment.MEDIA_MOUNTED)) {Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);// "android.media.action.IMAGE_CAPTURE"/**** 需要说明一下，以下操作使用照相机拍照，拍照后的图片会存放在相册中的 这里使用的这种方式有一个好处就是获取的图片是拍照后的原图* 如果不实用ContentValues存放照片路径的话，拍照后获取的图片为缩略图不清晰*/ContentValues values = new ContentValues();photoUri = this.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, photoUri);startActivityForResult(intent, SELECT_PIC_BY_TACK_PHOTO);} else {Toast.makeText(getApplicationContext(), "内存卡不存在",Toast.LENGTH_SHORT).show();}}/****  从相册中取图片*/private void pickPhoto() {Intent intent = new Intent();intent.setType("image/*");intent.setAction(Intent.ACTION_GET_CONTENT);startActivityForResult(intent, SELECT_PIC_BY_PICK_PHOTO);}@Overridepublic boolean onTouchEvent(MotionEvent event) {finish();return super.onTouchEvent(event);}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if (resultCode == Activity.RESULT_OK) {doPhoto(requestCode, data);}super.onActivityResult(requestCode, resultCode, data);}/*** 选择图片后，获取图片的路径*/private void doPhoto(int requestCode, Intent data) {if (requestCode == SELECT_PIC_BY_PICK_PHOTO) {// 从相册取图片，有些手机有异常情况，请注意if (data == null) {Toast.makeText(getApplicationContext(), "选择图片文件出错",Toast.LENGTH_SHORT).show();return;}photoUri = data.getData();if (photoUri == null) {Toast.makeText(getApplicationContext(), "选择图片文件出错",Toast.LENGTH_SHORT).show();return;}}String[] pojo = {MediaStore.Images.Media.DATA};@SuppressWarnings("deprecation")Cursor cursor = managedQuery(photoUri, pojo, null, null, null);if (cursor != null) {int columnIndex = cursor.getColumnIndexOrThrow(pojo[0]);cursor.moveToFirst();picPath = cursor.getString(columnIndex);cursor.close();}if (picPath != null&& (picPath.endsWith(".png") || picPath.endsWith(".PNG")|| picPath.endsWith(".jpg") || picPath.endsWith(".JPG"))) {lastIntent.putExtra(KEY_PHOTO_PATH, picPath);setResult(Activity.RESULT_OK, lastIntent);finish();} else {Toast.makeText(getApplicationContext(), "选择图片文件不正确",Toast.LENGTH_SHORT).show();}}}

其中会使用到intent的跳转，我们可以在跳转期间添加动画以及背景透明:

<activityandroid:name="com.seven.activity.SelectPhotoActivity"android:screenOrientation="portrait"android:theme="@style/DialogStyleBottom" ></activity>

资源分享：

<?xml version="1.0" encoding="utf-8"?>
<!-- 上下滑入式 -->
<set xmlns:android="http://schemas.android.com/apk/res/android" ><translateandroid:duration="200"android:fromYDelta="100%p"android:toYDelta="0" /></set>

push_bottom_out.xml:

<?xml version="1.0" encoding="utf-8"?>
<!-- 上下滑出式 -->
<set xmlns:android="http://schemas.android.com/apk/res/android" ><translateandroid:duration="200"android:fromYDelta="0"android:toYDelta="50%p" />
</set>

<string name="paizhaoxuanqu">拍照选取</string>
<string name="xiangcexuanqu">相册选取</string>
<string name="exit">取消</string>

 <!-- 选取照片的Activity的样式风格，采取对话框的风格 --><style name="AnimBottom" parent="@android:style/Animation"><item name="android:windowEnterAnimation">@anim/push_bottom_in</item><item name="android:windowExitAnimation">@anim/push_bottom_out</item></style><style name="DialogStyleBottom" parent="android:Theme.Dialog"><item name="android:windowAnimationStyle">@style/AnimBottom</item><item name="android:windowFrame">@null</item><!-- 边框 --><item name="android:windowIsFloating">false</item><!-- 是否浮现在activity之上 --><item name="android:windowIsTranslucent">true</item><!-- 半透明 --><item name="android:windowNoTitle">true</item><!-- 无标题 --><item name="android:windowBackground">@android:color/transparent</item><!-- 背景透明 --><item name="android:backgroundDimEnabled">true</item><!-- 模糊 --></style>