Andoroid实现底部图片选择Dialog效果

<LinearLayout xmlns:android/58979.html">android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView  android:id="@+id/abroad_takephoto"  android:layout_width="match_parent"  android:layout_height="@dimen/abroad_dialog_item_hight"  android:background="@drawable/abroad_dialogitem_selector"  android:gravity="center"  android:text="@string/abroad_photo"  android:textColor="@color/abroad_dialog_textcolor"  android:textSize="@dimen/abroad_dialog_textsize" /> <View  android:layout_width="match_parent"  android:layout_height="@dimen/abroad_dialog_view_hight"  android:background="@color/abroad_dialog_view_bg" /> <TextView  android:id="@+id/abroad_choosephoto"  android:layout_width="match_parent"  android:layout_height="@dimen/abroad_dialog_item_hight"  android:background="@drawable/abroad_dialogitem_selector"  android:gravity="center"  android:text="@string/abroad_choosephotp"  android:textColor="@color/abroad_dialog_textcolor"  android:textSize="@dimen/abroad_dialog_textsize" /> <TextView  android:id="@+id/abroad_choose_cancel"  android:layout_width="match_parent"  android:layout_height="@dimen/abroad_dialog_item_hight"  android:layout_marginTop="@dimen/abroad_feedback_top"  android:background="@drawable/abroad_dialogitem_selector"  android:gravity="center"  android:text="@string/abroad_cancel"  android:textColor="@color/abroad_dialog_textcolor"  android:textSize="@dimen/abroad_dialog_textsize" /></LinearLayout>

 <color name="abroad_dialog_item">#ffffff</color> <color name="abroad_dialog_item_press">#dfdfdf</color> <color name="abroad_dialog_textcolor">#222222</color> <color name="abroad_dialog_view_bg">#cccccc</color> <dimen name="abroad_dialog_item_hight">45dp</dimen> <dimen name="abroad_feedback_top">8dp</dimen> <dimen name="abroad_dialog_textsize">18sp</dimen> <string name="abroad_photo">拍照</string> <string name="abroad_choosephotp">从相册选择</string> <string name="abroad_cancel">取消</string>

<?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@color/abroad_dialog_item_press" android:state_pressed="true" /> <item android:drawable="@color/abroad_dialog_item" /></selector>

<style name="ActionSheetDialogStyle" parent="@android:style/Theme.Dialog"> <!-- 背景透明 --> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowContentOverlay">@null</item> <!-- 浮于Activity之上 --> <item name="android:windowIsFloating">true</item> <!-- 边框 --> <item name="android:windowFrame">@null</item> <!-- Dialog以外的区域模糊效果 --> <item name="android:backgroundDimEnabled">true</item> <!-- 无标题 --> <item name="android:windowNoTitle">true</item> <!-- 半透明 --> <item name="android:windowIsTranslucent">true</item> <!-- Dialog进入及退出动画 --> <item name="android:windowAnimationStyle">@style/style_inner_map_dialog_animation</item><style name="style_inner_map_dialog_animation"> <!--dialog的进出动画--> <item name="android:windowEnterAnimation">@anim/scale_alpha_to_enter</item> <item name="android:windowExitAnimation">@anim/scale_alpha_to_exit</item></style>

private TextView cancel;private TextView takePhoto;private TextView choosePhoto;private Dialog dialog;public void chosePhotoDialog() { dialog = new Dialog(this, R.style.ActionSheetDialogStyle); inflate = LayoutInflater.from(this).inflate(R.layout.view_abroad_choosephoto_dialog, null); choosePhoto = (TextView) inflate.findViewById(R.id.abroad_choosephoto); takePhoto = (TextView) inflate.findViewById(R.id.abroad_takephoto); cancel = (TextView) inflate.findViewById(R.id.abroad_choose_cancel); choosePhoto.setOnClickListener(this); takePhoto.setOnClickListener(this); cancel.setOnClickListener(this); dialog.setContentView(inflate); Window window = dialog.getWindow(); if (dialog != null && window != null) {  window.getDecorView().setPadding(0, 0, 0, 0);  WindowManager.LayoutParams attr = window.getAttributes();  if (attr != null) {   attr.height = ViewGroup.LayoutParams.WRAP_CONTENT;   attr.width = ViewGroup.LayoutParams.MATCH_PARENT;   attr.gravity = Gravity.BOTTOM;//设置dialog 在布局中的位置   window.setAttributes(attr);  } } dialog.show();}

 private static final int PHOTO_REQUEST_CAREMA = 1;// 拍照 private static final int PHOTO_REQUEST_GALLERY = 2;// 从相册中选择 private static final int PHOTO_REQUEST_CUT = 3;// 结果

 /***  * 进入系统相册界面  */ private void pickAlbum() { Intent intent = new Intent(Intent.ACTION_PICK, null);    intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*"); startActivityForResult(intent, PHOTO_REQUEST_GALLERY); }

 protected void takePhotos() {  Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);  startActivityForResult(intent, PHOTO_REQUEST_CAREMA); }

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) {  switch (requestCode) {   case PHOTO_REQUEST_GALLERY:    if (data != null) {     Uri uri = handleImage(data);     cropPhoto(uri);    }    break;   case PHOTO_REQUEST_CAREMA:    if (resultCode == RESULT_CANCELED) {     return;    }    if (data != null) {     Bitmap photo = data.getParcelableExtra("data");     //将Bitmap转化为uri     Uri uri = saveBitmap(photo, "temp");     //启动图像裁剪     cropPhoto(uri);    }    break;   case PHOTO_REQUEST_CUT:    LogUtil.d("abroadUseActivity2", "裁剪");    // 从剪切图片返回的数据    if (data == null) {     return;    }    bitmap = data.getParcelableExtra("data");    if (bitmap == null) {//     return;    }    // TODO 此处我们便获得了bitmap对象，做其他操作    bitmap.recycle();    break;   default:    break;  }  super.onActivityResult(requestCode, resultCode, data); }

 private void cropPhoto(Uri uri) {  // 裁剪图片意图  Intent intent = new Intent("com.android.camera.action.CROP");  intent.setDataAndType(uri, "image/*");  intent.putExtra("crop", "true");  // 裁剪框的比例，1：1  intent.putExtra("aspectX", 1);  intent.putExtra("aspectY", 1);  // 裁剪后输出图片的尺寸大小  intent.putExtra("outputX", 250);  intent.putExtra("outputY", 250);  intent.putExtra("outputFormat", "JPEG");// 图片格式  intent.putExtra("noFaceDetection", true);// 取消人脸识别  intent.putExtra("return-data", true);  // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CUT  startActivityForResult(intent, PHOTO_REQUEST_CUT); }

/**  * 把bitmap保存到本地  *  * @param bm  bitmap  * @param dirPath 路径  * @return 文件的uri  */ private Uri saveBitmap(Bitmap bm, String dirPath) {  //新建文件夹用于存放裁剪后的图片  File tmpDir = new File(Environment.getExternalStorageDirectory() + "/" + dirPath);  if (!tmpDir.exists()) {   tmpDir.mkdir();  }  //新建文件存储裁剪后的图片  File img = new File(tmpDir.getAbsolutePath() + "/feedback.png");  try {   //打开文件输出流   FileOutputStream fos = new FileOutputStream(img);   //将bitmap压缩后写入输出流(参数依次为图片格式、图片质量和输出流)   bm.compress(Bitmap.CompressFormat.JPEG, 100, fos);   fos.flush();   fos.close();   //返回File类型的Uri   return Uri.fromFile(img);  } catch (FileNotFoundException e) {   e.printStackTrace();   return null;  } catch (IOException e) {   e.printStackTrace();   return null;  } }