如何从图库中选择多个图像？
我试图从文件位置选择多个图像。 到目前为止，我已设法选择一个图像，但如何选择两个图像。
Intent intent =new Intent(Intent.ACTION_PICK); intent.setType("image/*"); startActivityForResult(intent, STEP_4_REQUEST); 然后在onActivityResult(int requestCode, int resultCode, Intent data)方法中进行以下操作：
case STEP_4_REQUEST: if (resultCode == RESULT_OK) { Uri selectedImage = data.getData(); String[] filePathColumn = { MediaStore.Images.Media.DATA }; Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null); cursor.moveToFirst(); int columnIndex = cursor.getColumnIndex(filePathColumn[0]); String filePath = cursor.getString(columnIndex); cursor.close(); Bitmap yourSelectedImage = BitmapFactory.decodeFile(filePath); }
我创建了自定义图库。
试试这就像魅力一样
import android.app.Activity; import android.content.Context; import android.content.Intent; import android.database.Cursor; import android.graphics.Bitmap; import android.os.AsyncTask; import android.os.Bundle; import android.provider.MediaStore; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.ImageView; import android.widget.Toast; import com.ijoomer.customviews.IjoomerButton; import com.ijoomer.customviews.IjoomerCheckBox; import com.ijoomer.src.R; /** * This Class Contains All Method Related To IjoomerPhotoGalaryActivity. * * @author tasol * */ public class IjoomerPhotoGalaryActivity extends Activity { private ImageAdapter imageAdapter; private String[] arrPath; private boolean[] thumbnailsselection; private int ids[]; private int count; /** * Overrides methods */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.photo_gallery); 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 IjoomerButton selectBtn = (IjoomerButton) 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(); } /** * Class method */ /** * This method used to set bitmap. * @param iv represented ImageView * @param id represented id */ private void setBitmap(final ImageView iv, final int id) { new AsyncTask() { @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(); } /** * List adapter * @author tasol */ 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); holder.IjoomerCheckBox = (IjoomerCheckBox) convertView.findViewById(R.id.itemCheckBox); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.IjoomerCheckBox.setId(position); holder.imageview.setId(position); holder.IjoomerCheckBox.setOnClickListener(new OnClickListener() { public void onClick(View v) { IjoomerCheckBox cb = (IjoomerCheckBox) v; int id = cb.getId(); if (thumbnailsselection[id]) { cb.setChecked(false); thumbnailsselection[id] = false; } else { cb.setChecked(true); thumbnailsselection[id] = true; } } }); holder.imageview.setOnClickListener(new OnClickListener() { public void onClick(View v) { int id = holder.IjoomerCheckBox.getId(); if (thumbnailsselection[id]) { holder.IjoomerCheckBox.setChecked(false); thumbnailsselection[id] = false; } else { holder.IjoomerCheckBox.setChecked(true); thumbnailsselection[id] = true; } } }); try { setBitmap(holder.imageview, ids[position]); } catch (Throwable e) { } holder.IjoomerCheckBox.setChecked(thumbnailsselection[position]); holder.id = position; return convertView; } } /** * Inner class * @author tasol */ class ViewHolder { ImageView imageview; IjoomerCheckBox IjoomerCheckBox; int id; } }
photo_gallery.xml
photo_gallery_item.xml
我自己得到了它：发布它，因为如果需要它可以帮助其他人
我们应该告诉android当我们打开gallery并选择分享按钮时，我的应用程序必须是共享的选项之一，如：
manifestfile:
选择我们的应用程序后，它将在每个图像上打开带有复选框的图库以选择图像，在应用程序中处理所选图像：
selectedimages.java文件：
if (Intent.ACTION_SEND_MULTIPLE.equals(getIntent().getAction()) && getIntent().hasExtra(Intent.EXTRA_STREAM)) { ArrayList list = getIntent().getParcelableArrayListExtra(Intent.EXTRA_STREAM); for (Parcelable parcel : list) { Uri uri = (Uri) parcel; String sourcepath=getPath(uri); /// do things here with each image source path. } finish(); } } public String getPath(Uri uri) { String[] projection = { MediaStore.Images.Media.DATA }; Cursor cursor = managedQuery(uri, projection, null, null, null); startManagingCursor(cursor); int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); cursor.moveToFirst(); return cursor.getString(column_index); }
你也可以参考这个链接：
http://www.javacodegeeks.com/2012/10/android-select-multiple-photos-from-gallery.html
希望对你有帮助..！！！
尝试了许多替代品，最简单和最强大的是： https ： //github.com/luminousman/MultipleImagePick
嗨，下面的代码工作正常。
Cursor imagecursor1 = managedQuery( MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns, null, null, orderBy + " DESC"); this.imageUrls = new ArrayList(); imageUrls.size(); for (int i = 0; i < imagecursor1.getCount(); i++) { imagecursor1.moveToPosition(i); int dataColumnIndex = imagecursor1 .getColumnIndex(MediaStore.Images.Media.DATA); imageUrls.add(imagecursor1.getString(dataColumnIndex)); } options = new DisplayImageOptions.Builder() .showStubImage(R.drawable.stub_image) .showImageForEmptyUri(R.drawable.image_for_empty_url) .cacheInMemory().cacheOnDisc().build(); imageAdapter = new ImageAdapter(this, imageUrls); gridView = (GridView) findViewById(R.id.PhoneImageGrid); gridView.setAdapter(imageAdapter);
你想要更多澄清。 http://mylearnandroid.blogspot.in/2014/02/multiple-choose-custom-gallery.html