讀取圖片來源於聯繫 - Android電子

Question

我用這個示例代碼：

public InputStream openDisplayPhoto(long contactId) { 
    Uri contactUri = ContentUris.withAppendedId(Contacts.CONTENT_URI, contactId); 
    Uri displayPhotoUri = Uri.withAppendedPath(contactUri, Contacts.Photo.DISPLAY_PHOTO); 
    try { 
     AssetFileDescriptor fd = 
      getContentResolver().openAssetFileDescriptor(displayPhotoUri, "r"); 
     return fd.createInputStream(); 
    } catch (IOException e) { 
     return null; 
    } 
} 

我無法顯示此放大。我如何使用它？

Answer 1

你可以得到這樣的聯繫人的照片。

/** 
* @return the photo URI 
*/ 
public Uri getPhotoUri() { 
    try { 
     Cursor cur = this.ctx.getContentResolver().query(
       ContactsContract.Data.CONTENT_URI, 
       null, 
       ContactsContract.Data.CONTACT_ID + "=" + this.getId() + " AND " 
         + ContactsContract.Data.MIMETYPE + "='" 
         + ContactsContract.CommonDataKinds.Photo.CONTENT_ITEM_TYPE + "'", null, 
       null); 
     if (cur != null) { 
      if (!cur.moveToFirst()) { 
       return null; // no photo 
      } 
     } else { 
      return null; // error in cursor process 
     } 
    } catch (Exception e) { 
     e.printStackTrace(); 
     return null; 
    } 
    Uri person = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, Long 
      .parseLong(getId())); 
    return Uri.withAppendedPath(person, ContactsContract.Contacts.Photo.CONTENT_DIRECTORY); 
} 

用法爲：

Uri u = objItem.getPhotoUri(); 
if (u != null) { 
     mPhotoView.setImageURI(u); 
} else { 
     mPhotoView.setImageResource(R.drawable.ic_contact_picture_2); 
}