Android实现底部图片选择Dialog

<LinearLayout xmlns: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();}

 @Overridepublic void onClick(View view) {  switch (view.getId()) {    case R.id.abroad_choosephoto:      pickAlbum();      break;    case R.id.abroad_takephoto:      takePhotos();      break;    case R.id.abroad_choose_cancel:      dialog.dismiss();  }  dialog.dismiss();}

  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;    }  }