[英]How to add more images into sdcard same time in android
Hi am doing one application,here i need to select more images from gallery folder or camera.and then i need to save those selected images into sdcard some other folder..using below code i can able to select images from gallery then am storing selected images in one string arraylist,but how to store those selected images into sdcard... 嗨,我正在做一个应用程序,在这里我需要从图库文件夹或照相机中选择更多图像。然后我需要将那些选定的图像保存到其他文件夹中的sdcard中。使用以下代码,我可以从图库中选择图像,然后存储选定的图像图像在一个字符串数组列表中,但是如何将那些选择的图像存储到sdcard中...
public class MultiPhotoSelectActivity extends BaseActivity {
private Button dialogButton1,dialogButton2,dialogButton3,cancel;
Dialog dialog;
String extStorageDirectory;
Bitmap bm;
private ArrayList<String> imageUrls;
private DisplayImageOptions options;
private ImageAdapter imageAdapter;
final Context context = this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.ac_image_grid);
//Bundle bundle = getIntent().getExtras();
//imageUrls = bundle.getStringArray(Extra.IMAGES);
final String[] columns = { MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID };
final String orderBy = MediaStore.Images.Media.DATE_TAKEN;
Cursor imagecursor = managedQuery(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns, null,
null, orderBy + " DESC");
this.imageUrls = new ArrayList<String>();
for (int i = 0; i < imagecursor.getCount(); i++) {
imagecursor.moveToPosition(i);
int dataColumnIndex = imagecursor.getColumnIndex(MediaStore.Images.Media.DATA);
imageUrls.add(imagecursor.getString(dataColumnIndex));
System.out.println("=====> Array path => "+imageUrls.get(i));
}
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 = (GridView) findViewById(R.id.gridview);
gridView.setAdapter(imageAdapter);
/*gridView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
startImageGalleryActivity(position);
}
});*/
}
@Override
protected void onStop() {
imageLoader.stop();
super.onStop();
}
public void btnChoosePhotosClick(View v){
ArrayList<String> selectedItems = imageAdapter.getCheckedItems();
}
public class ImageAdapter extends BaseAdapter {
ArrayList<String> mList;
LayoutInflater mInflater;
Context mContext;
SparseBooleanArray mSparseBooleanArray;
public ImageAdapter(Context context, ArrayList<String> imageList) {
// TODO Auto-generated constructor stub
mContext = context;
mInflater = LayoutInflater.from(mContext);
mSparseBooleanArray = new SparseBooleanArray();
mList = new ArrayList<String>();
this.mList = imageList;
}
public ArrayList<String> getCheckedItems() {
ArrayList<String> mTempArry = new ArrayList<String>();
for(int i=0;i<mList.size();i++) {
if(mSparseBooleanArray.get(i)) {
mTempArry.add(mList.get(i));
}
}
return mTempArry;
}
@Override
public int getCount() {
return imageUrls.size();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if(convertView == null) {
convertView = mInflater.inflate(R.layout.row_multiphoto_item, null);
}
CheckBox mCheckBox = (CheckBox) convertView.findViewById(R.id.checkBox1);
final ImageView imageView = (ImageView) convertView.findViewById(R.id.imageView1);
imageLoader.displayImage("file://"+imageUrls.get(position), imageView, options, new SimpleImageLoadingListener() {
@Override
public void onLoadingComplete(Bitmap loadedImage) {
Animation anim = AnimationUtils.loadAnimation(MultiPhotoSelectActivity.this, R.anim.fade_in);
imageView.setAnimation(anim);
anim.start();
}
});
mCheckBox.setTag(position);
mCheckBox.setChecked(mSparseBooleanArray.get(position));
mCheckBox.setOnCheckedChangeListener(mCheckedChangeListener);
return convertView;
}
OnCheckedChangeListener mCheckedChangeListener = new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
// TODO Auto-generated method stub
mSparseBooleanArray.put((Integer) buttonView.getTag(), isChecked);
}
};
}
}
private void saveDataInSdCard(String urimg) {
URL url = new URL(urimg);
OutputStream fOut = null;
Uri outputFileUri;
try {
File root = new File(Environment.getExternalStorageDirectory()
+ File.separator + "urFlodername" + File.separator);
root.mkdirs();
sdImageMainDirectory = new File(root,i+"myPicName.jpg");
outputFileUri = Uri.fromFile(sdImageMainDirectory);
fOut = new FileOutputStream(sdImageMainDirectory);
} catch (Exception e) {
}
Bitmap bm=BitmapFactory.decodeStream(url.openConnection().getInputStream());
try {
bm.compress(Bitmap.CompressFormat.PNG, 100, fOut);
fOut.flush();
fOut.close();
} catch (Exception e) {
}
}
then call this method on your for loop of image list.. 然后在图像列表的for循环上调用此方法。
For(int i = 0; i < imagesUrls.size(); i++){
saveDataInSdCard(imagesUrls.get(i)); }
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