如何浏览Android图库文件夹明智喜欢WhatsApp

Question

我想浏览Android图库选择多个图像，如WhatsApp发送到服务器。

我跟着很多文章，但没有得到解决方案。 现在我使用这个：

MainActivity

public class MainActivity extends Activity{ 
private ImageAdapter imageAdapter; 
private String[] arrPath; 
private boolean[] thumbnailsselection; 
private int ids[]; 
private int count; 
private final Logger log = Logger.getAnonymousLogger(); 
@Override 
protected void onCreate(Bundle savedInstanceState){ 
super.onCreate(savedInstanceState); 
setContentView(R.layout.activity_main); 
final String[] columns = { MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID }; 
final String orderBy = MediaStore.Images.Media._ID; 
@SuppressWarnings("deprecation") 
Cursor imagecursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns, null, null, orderBy); 
int image_column_index = imagecursor.getColumnIndex(MediaStore.Images.Media._ID); 
this.count = imagecursor.getCount(); 
this.arrPath = new String[this.count]; 
ids = new int[count]; 
this.thumbnailsselection = new boolean[this.count]; 
for (int i = 0; i < this.count; i++) 
{ 
imagecursor.moveToPosition(i); 
ids[i] = imagecursor.getInt(image_column_index); 
int dataColumnIndex =imagecursor.getColumnIndex(MediaStore.Images.Media.DATA); 
arrPath[i] = imagecursor.getString(dataColumnIndex); 
} 
GridView imagegrid = (GridView) findViewById(R.id.PhoneImageGrid); 
imageAdapter = new ImageAdapter(); 
imagegrid.setAdapter(imageAdapter); 
imagecursor.close(); 
final Button selectBtn = (Button) findViewById(R.id.selectBtn); 
selectBtn.setOnClickListener(new OnClickListener(){ 
public void onClick(View v){ 
final int len = thumbnailsselection.length; 
int cnt = 0; 
String selectImages = ""; 
for (int i = 0; i < len; i++){ 
if (thumbnailsselection[i]){ 
cnt++; 
selectImages = selectImages + arrPath[i] + "|"; 
} 
} 
if (cnt == 0){ 
Toast.makeText(getApplicationContext(), "Please select at least one image", Toast.LENGTH_LONG).show(); 
} else{ 
Log.d("SelectedImages", selectImages); 
Intent i = new Intent(); 
i.putExtra("data", selectImages); 
setResult(Activity.RESULT_OK, i); 
finish(); 
} 
} 
}); 
} 
@Override 
public void onBackPressed(){ 
setResult(Activity.RESULT_CANCELED); 
super.onBackPressed(); 
} 
private void setBitmap(final ImageView iv, final int id){ 
new AsyncTask<Void, Void, Bitmap>(){ 
@Override 
protected Bitmap doInBackground(Void... params){ 
return MediaStore.Images.Thumbnails.getThumbnail(getApplicationContext().getContentResolver(), id, MediaStore.Images.Thumbnails.MICRO_KIND, null); 
} 
@Override 
protected void onPostExecute(Bitmap result){ 
super.onPostExecute(result); 
iv.setImageBitmap(result); 
} 
}.execute(); 
} 
public class ImageAdapter extends BaseAdapter{ 
private LayoutInflater mInflater; 
public ImageAdapter(){ 
mInflater = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
} 
public int getCount(){ 
return count; 
} 
public Object getItem(int position){ 
return position; 
} 
public long getItemId(int position){ 
return position; 
} 
public View getView(int position, View convertView, ViewGroup parent){ 
final ViewHolder holder; 
if (convertView == null){ 
holder = new ViewHolder(); 
convertView = mInflater.inflate(R.layout.photo_gallery_item, null); 
holder.imageview = (ImageView) convertView.findViewById(R.id.thumbImage); 
log.info("Holder "+ holder); 
holder.cb = (CheckBox) convertView.findViewById(R.id.itemCheckBox); 
convertView.setTag(holder); 
} else{ 
holder = (ViewHolder) convertView.getTag(); 
} 
holder.cb.setId(position); 
holder.imageview.setId(position); 
holder.cb.setOnClickListener(new OnClickListener(){ 
public void onClick(View v){ 
CheckBox cbObject = (CheckBox) v; 
int id = cbObject.getId(); 
if (thumbnailsselection[id]){ 
cbObject.setChecked(false); 
thumbnailsselection[id] = false; 
} else { 
cbObject.setChecked(true); 
thumbnailsselection[id] = true; 
} 
} 
}); 
holder.imageview.setOnClickListener(new OnClickListener(){ 
public void onClick(View v){ 
int id = holder.cb.getId(); 
if (thumbnailsselection[id]){ 
holder.cb.setChecked(false); 
thumbnailsselection[id] = false; 
} else{ 
holder.cb.setChecked(true); 
thumbnailsselection[id] = true; 
} 
} 
}); 
try{ 
setBitmap(holder.imageview, ids[position]); 
} catch (Throwable e){ 
log.info("set Bitmap "+ e); 
} 
holder.cb.setChecked(thumbnailsselection[position]); 
holder.id = position; 
return convertView; 
} 
} 
class ViewHolder{ 
ImageView imageview; 
CheckBox cb; 
int id; 
} 
} 

这个职位，我都遵循：

android-gallery-pick-like-whatsapp MultipleImagePick how-to-select-multiple-images-from-gallery-in-titanium

Answer 1

使用下面的代码就可以打开画廊通过

Intent intent = new Intent(); 
intent.setType("image/*"); 
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true); 
intent.setAction(Intent.ACTION_GET_CONTENT);// 
startActivityForResult(Intent.createChooser(intent, "Select Picture"),SELECT_IMAGE);