Android 从库中选择多个图像
我正在使用此代码将意图发送到图库以加载多个图像Android 从库中选择多个图像,android,android-bitmap,android-gallery,Android,Android Bitmap,Android Gallery,我正在使用此代码将意图发送到图库以加载多个图像 Intent intent = new Intent(); intent.setType("image/*"); intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true); intent.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(Intent.createChoo
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"), PICK_IMAGE_MULTIPLE);
但是在ActivityResult上,我只获取映像的路径,而没有从适配器获取映像。我不知道是适配器问题还是其他问题,也不知道在哪里调试。对于活动结果,我使用此代码
try {
// When an Image is picked
if (requestCode == PICK_IMAGE_MULTIPLE && resultCode == RESULT_OK
&& null != data) {
// Get the Image from data
String[] filePathColumn = { MediaStore.Images.Media.DATA };
imagesEncodedList = new ArrayList<String>();
if(data.getData()!=null){
Uri mImageUri=data.getData();
// Get the cursor
Cursor cursor = getContentResolver().query(mImageUri,
filePathColumn, null, null, null);
// Move to first row
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
imageEncoded = cursor.getString(columnIndex);
cursor.close();
} else {
if (data.getClipData() != null) {
ClipData mClipData = data.getClipData();
ArrayList<String> mArrayUri = new ArrayList<>();
for (int i = 0; i < mClipData.getItemCount(); i++) {
ClipData.Item item = mClipData.getItemAt(i);
Uri uri = item.getUri();
mArrayUri.add(uri.toString());
// Get the cursor
Cursor cursor = getContentResolver().query(uri, filePathColumn, null, null, null);
// Move to first row
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
imageEncoded = cursor.getString(columnIndex);
imagesEncodedList.add(imageEncoded);
cursor.close();
}
Log.v("LOG_TAG", "Selected Images" + mArrayUri.size());
Toast.makeText(this, ""+mArrayUri.size(), Toast.LENGTH_SHORT).show();
final ArrayList<Image> images = new ArrayList<>();
for(int i=0;i<mArrayUri.size();i++){
images.add(new Image(BitmapFactory.decodeFile(mArrayUri.get(i)),
new File(mArrayUri.get(i)),
mArrayUri.get(i).substring(mArrayUri.lastIndexOf("/")+1)));
}
mAdapter = new ImageAdapter(this,images);
mAdapter.notifyDataSetChanged();
gridView.setAdapter(mAdapter);
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
Toast.makeText(getApplicationContext(),"Clicked short",Toast.LENGTH_LONG).show();
}
});
gridView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {
Toast.makeText(getApplicationContext(),"Clicked",Toast.LENGTH_LONG).show();
return false;
}
});
}
}
}
else {
Toast.makeText(this, "You haven't picked Image",
Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
Toast.makeText(this, "Something went wrong", Toast.LENGTH_LONG)
.show();
}
试试看{
//拾取图像时
如果(requestCode==PICK\u IMAGE\u MULTIPLE&&resultCode==RESULT\u OK
&&空!=数据){
//从数据中获取图像
字符串[]filePathColumn={MediaStore.Images.Media.DATA};
imagesEncodedList=新的ArrayList();
if(data.getData()!=null){
Uri mimageri=data.getData();
//获取光标
Cursor Cursor=getContentResolver().query(mimageri,
filePathColumn,null,null,null);
//移到第一排
cursor.moveToFirst();
int columnIndex=cursor.getColumnIndex(filePathColumn[0]);
imageEncoded=cursor.getString(columnIndex);
cursor.close();
}否则{
if(data.getClipData()!=null){
ClipData mClipData=data.getClipData();
ArrayList mArrayUri=新的ArrayList();
对于(int i=0;i
你到底有什么问题?您不能拾取多个图像或什么?@pskink图像不显示。图像是从图库中拾取的,但不会显示在活动中。在你的
for(int i=0;i
循环中找不到你的Uri
问题-在ImageView
中使用它-没有。你不必查询任何光标,并且?你是否使用了Uri
?如果没有,有什么不清楚的?该Uri无效。我通过另一种方法解决了它