android如何取得本地通讯录的头像的原图的实现代码
本文介绍了android如何取得本地通讯录的头像的原图的实现代码,分享给大家,也给自己留个笔记
如果想通讯录进入详情页,那么最重要的参数就是contactId,这个是联系人的唯一标识
getListView().setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { try { Cursor cursor = (Cursor) getListAdapter().getItem(position); if (cursor == null) { return; } int contactId = cursor.getInt(Personal.ID_COLUMN_INDEX); Intent intent = new Intent(); intent.setClass(ContactsList.this, ContactDetail.class); intent.putExtra("contactId",contactId); startActivity(intent); }catch(Exception ex) { ex.printStackTrace(); } } });
本地通讯录的原图获取方法是:
public class ContactDetail extends Activity { private ImageView contact_photo; public static void startActivity(Context context) { Intent intent = new Intent(); intent.setClass(context,ContactDetail.class); context.startActivity(intent); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.contact_detail); int contactId = getIntent().getIntExtra("contactId", 0); contact_photo = (ImageView)findViewById(R.id.contact_photo); loadTask task = new loadTask(contactId); task.execute(); } private class loadTask extends AsyncTask<Void, Void, Bitmap> { public loadTask(int id) { contactId = id; } private int contactId; @Override protected Bitmap doInBackground(Void... params) { InputStream inputStream = openDisplayPhoto(contactId); BitmapFactory.Options opt = new BitmapFactory.Options(); opt.inSampleSize = 1; Bitmap bitmap = BitmapFactory.decodeStream(inputStream, null, opt); return bitmap; } @Override protected void onPostExecute(Bitmap result) { if(result != null) { contact_photo.setImageBitmap(result); } super.onPostExecute(result); } } /** * 这个是取到清晰图的inputStream的代码 * @param contactId * @return */ public InputStream openDisplayPhoto(long contactId) { Uri contactUri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, contactId); Uri displayPhotoUri = Uri.withAppendedPath(contactUri, ContactsContract.Contacts.Photo.DISPLAY_PHOTO); try { AssetFileDescriptor fd = this.getContentResolver().openAssetFileDescriptor(displayPhotoUri, "r"); return fd.createInputStream(); } catch (IOException e) { e.printStackTrace(); return null; } } }
activity的运行效果是:
代码在https://github.com/nickgao1986/StepSport
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