如何在Android中选择多个图像，从画廊？多个、画廊、图像、如何在
2023-09-05 09:02:54
作者：流星划过的永恒
我做的，我想选择的画廊多张照片，并要保存在ImageView的数组中的项目。 我能够导入单个图像并保存在ImageView的 谁能告诉取悦我怎么可能导入多张图片，并保存在数组或不同imageviews？
MainActivity延伸活动实现OnClickListener {
按钮addphoto，保存;
ImageView的IMG1 [];
位图yourbitmap，调整大小;
INT RESULT_LOAD_IMAGE1 = 1;
@覆盖
保护无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_main）;
addphoto =（按钮）findViewById（R.id.add）;
IMG1 [0] =（ImageView的）findViewById（R.id.imageView1）;
节省=（按钮）findViewById（R.id.save）;
addphoto.setOnClickListener（本）;
save.setOnClickListener（本）;
}
@覆盖
公共无效的onClick（查看为arg0）{
// TODO自动生成方法存根
开关（arg0.getId（））{
案例R.id.add：
意向意图=新的意图（）;
intent.setType（图像/ *）;
intent.setAction（Intent.ACTION_GET_CONTENT）;
startActivityForResult（Intent.createChooser（意向，选择图片），RESULT_LOAD_IMAGE1）;
打破;
}
@覆盖
保护无效onActivityResult（INT申请code，INT结果code，意图数据）{
// TODO自动生成方法存根
super.onActivityResult（要求code，因此code，数据）;
如果（要求code == RESULT_LOAD_IMAGE1和放大器;＆安培;结果code == RESULT_OK
＆功放;＆安培;空！=数据）{
乌里selectedImage = data.getData（）;
的String [] filePathColumn = {MediaStore.Images.Media.DATA};
光标光标= getContentResolver（）查询（selectedImage，
filePathColumn，NULL，NULL，NULL）;
cursor.moveToFirst（）;
INT参数：columnIndex = cursor.getColumnIndex（filePathColumn [0]）;
字符串picturePath = cursor.getString（参数：columnIndex）;
cursor.close（）;
尝试 {
yourbitmap = BitmapFactory.de codeFILE（picturePath）;
大小= Bitmap.createScaledBitmap（yourbitmap，200,300，真正的）;
IMG1 [0] .setImageBitmap（调整）;
}赶上（例外五）{
e.printStackTrace（）;
}
}
}
}
解决方案
实现自定义的画廊选择低于code：
activity_main
＆LT;滚动型
机器人：layout_width =match_parent
机器人：layout_height =WRAP_CONTENT机器人：ID =@ + ID / scroll1
＆GT;
＆LT;的LinearLayout
机器人：ID =@ + ID / lnrImages
机器人：layout_width =match_parent
机器人：layout_height =WRAP_CONTENT
机器人：方向=垂直＆GT;
＆LT; / LinearLayout中＆GT;
＆LT; /滚动型＆GT;
＆LT;的LinearLayout
机器人：layout_width =match_parent
机器人：layout_height =WRAP_CONTENT
机器人：layout_alignParentBottom =真
机器人：ID =@ + ID / LinearLayout中＆GT;
＆LT;按钮
机器人：ID =@ + ID / btnAddPhots
机器人：layout_width =0dp
机器人：layout_weight =1
机器人：layout_height =WRAP_CONTENT
机器人：文本=添加Phots/＆GT;
＆LT;按钮
机器人：ID =@ + ID / btnSaveImages
机器人：layout_width =0dp
机器人：layout_weight =1
机器人：layout_height =WRAP_CONTENT
机器人：文本=保存/＆GT;
＆LT; / LinearLayout中＆GT;
custom_gallery
＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT; LinearLayout中的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：重力=中心
机器人：方向=垂直＆GT;
＆LT; GridView控件
机器人：ID =@ + ID / grdImages
机器人：layout_width =match_parent
机器人：layout_height =0dp
机器人：layout_weight =1
机器人：为numColumns =auto_fit
机器人：verticalSpacing =10dp
机器人：horizontalSpacing =10dp
机器人：columnWidth中=90dp
机器人：stretchMode =columnWidth中
机器人：重力=中心/＆GT;
＆LT;按钮
机器人：ID =@ + ID / btnSelect
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT
机器人：文本=选择
机器人：layout_marginTop =5DP/＆GT;
＆LT; / LinearLayout中＆GT;
custom_gallery_item
＆LT; ImageView的
机器人：ID =@ + ID / imgThumb
机器人：layout_width =match_parent
机器人：layout_height =match_parent/＆GT;
＆LT;复选框
机器人：ID =@ + ID / chkImage
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT
机器人：layout_gravity =顶|右/＆GT;
＆LT; /的FrameLayout＆GT;
MainActivity
公共类MainActivity扩展活动实现View.OnClickListener {
私人的LinearLayout lnrImages;
私人按钮btnAddPhots;
私人按钮btnSaveImages;
私人的ArrayList＆LT;字符串＆GT; imagesPathList;
私人位图yourbitmap;
私人位图调整;
私人最终诠释PICK_IMAGE_MULTIPLE = 1;
@覆盖
保护无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.activity_main）;
lnrImages =（的LinearLayout）findViewById（R.id.lnrImages）;
btnAddPhots =（按钮）findViewById（R.id.btnAddPhots）;
btnSaveImages =（按钮）findViewById（R.id.btnSaveImages）;
btnAddPhots.setOnClickListener（本）;
btnSaveImages.setOnClickListener（本）;
}
@覆盖
公共无效的onClick（视图查看）{
开关（view.getId（））{
案例R.id.btnAddPhots：
意向意图=新的意图（MainActivity.this，CustomPhotoGalleryActivity.class）;
startActivityForResult（意向，PICK_IMAGE_MULTIPLE）;
打破;
案例R.id.btnSaveImages：
如果（imagesPathList！= NULL）{
如果（imagesPathList.size（）→1）{
Toast.makeText（MainActivity.this，imagesPathList.size（）+无图像的选择，Toast.LENGTH_SHORT）.show（）;
}其他{
Toast.makeText（MainActivity.this，imagesPathList.size（）+无图像的选择，Toast.LENGTH_SHORT）.show（）;
}
}其他{
Toast.makeText（MainActivity.this，没有图像被选择，Toast.LENGTH_SHORT）.show（）;
}
打破;
}
}
@覆盖
保护无效onActivityResult（INT申请code，INT结果code，意图数据）{
super.onActivityResult（要求code，因此code，数据）;
如果（结果code == RESULT_OK）{
如果（要求code == PICK_IMAGE_MULTIPLE）{
imagesPathList =新的ArrayList＆LT;字符串＆GT;（）;
的String [] imagesPath = data.getStringExtra（数据）分裂（\\ |）。
尝试{
lnrImages.removeAllViews（）;
}赶上（的Throwable E）{
e.printStackTrace（）;
}
的for（int i = 0; I＆LT; imagesPath.length;我++）{
imagesPathList.add（imagesPath [I]）;
yourbitmap = BitmapFactory.de codeFILE（imagesPath [I]）;
ImageView的ImageView的=新ImageView的（这一点）;
imageView.setImageBitmap（yourbitmap）;
imageView.setAdjustViewBounds（真正的）;
lnrImages.addView（ImageView的）;
}
}
}
}
}
CustomPhotoGalleryActivity
公共类CustomPhotoGalleryActivity延伸活动{
私人的GridView grdImages;
私人按钮btnSelect;
私人ImageAdapter imageAdapter;
私有String [] arrPath;
私人布尔[] thumbnailsselection;
私人诠释IDS [];
私人诠释计数;
/ **
*重写方法
* /
@覆盖
公共无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.custom_gallery）;
grdImages =（GridView控件）findViewById（R.id.grdImages）;
btnSelect =（按钮）findViewById（R.id.btnSelect）;
最终的String []列= {MediaStore.Images.Media.DATA，MediaStore.Images.Media._ID};
最后弦乐排序依据= MediaStore.Images.Media._ID;
@燮pressWarnings（德precation）
光标imagecursor = managedQuery（MediaStore.Images.Media.EXTERNAL_CONTENT_URI，列，NULL，NULL，排序依据）;
INT image_column_index = imagecursor.getColumnIndex（MediaStore.Images.Media._ID）;
this.count = imagecursor.getCount（）;
this.arrPath =新的String [this.count]
IDS =新INT [计数]
this.thumbnailsselection =新的布尔[this.count]
的for（int i = 0; I＆LT; this.count;我++）{
imagecursor.moveToPosition（ⅰ）;
IDS [I] = imagecursor.getInt（image_column_index）;
INT dataColumnIndex = imagecursor.getColumnIndex（MediaStore.Images.Media.DATA）;
arrPath [I] = imagecursor.getString（dataColumnIndex）;
}
imageAdapter =新ImageAdapter（）;
grdImages.setAdapter（imageAdapter）;
imagecursor.close（）;
btnSelect.setOnClickListener（新OnClickListener（）{
公共无效的onClick（视图v）{
最终诠释的len = thumbnailsselection.length;
INT CNT = 0;
字符串selectImages =;
的for（int i = 0; I＆LT; LEN;我++）{
如果（thumbnailsselection [I]）{
CNT ++;
selectImages = selectImages + arrPath [我] +|;
}
}
如果（CNT == 0）{
Toast.makeText（getApplicationContext（），请选择至少一个图像，Toast.LENGTH_LONG）.show（）;
} 其他 {
Log.d（SelectedImages，selectImages）;
意图I =新意图（）;
i.putExtra（数据，selectImages）;
的setResult（Activity.RESULT_OK，我）;
完（）;
}
}
}）;
}
@覆盖
公共无效onBack pressed（）{
的setResult（Activity.RESULT_CANCELED）;
super.onBack pressed（）;
}
/ **
*类的方法
* /
/ **
*用于设置位图这个方法。
* @参数四重presented的ImageView
* @参数ID重新presented ID
* /
私人无效setBitmap（最终ImageView的IV，最终诠释ID）{
新的AsyncTask＆LT;虚空，虚空，位图＆GT;（）{
@覆盖
受保护的位图doInBackground（空... PARAMS）{
返回MediaStore.Images.Thumbnails.getThumbnail（getApplicationContext（）getContentResolver（），身份证，MediaStore.Images.Thumbnails.MICRO_KIND，空）;
}
@覆盖
保护无效onPostExecute（位图的结果）{
super.onPostExecute（结果）;
iv.setImageBitmap（结果）;
}
}。执行（）;
}
/ **
*名单适配器
* @author tasol
* /
公共类ImageAdapter扩展了BaseAdapter {
私人LayoutInflater mInflater;
公共ImageAdapter（）{
mInflater =（LayoutInflater）getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
}
公众诠释getCount将（）{
返回计数;
}
公共对象的getItem（INT位置）{
返回的位置;
}
众长getItemId（INT位置）{
返回的位置;
}
公共查看getView（INT位置，查看convertView，ViewGroup中父）{
最后ViewHolder持有人;
如果（convertView == NULL）{
持有人=新ViewHolder（）;
convertView = mInflater.inflate（R.layout.custom_gallery_item，NULL）;
holder.imgThumb =（ImageView的）convertView.findViewById（R.id.imgThumb）;
holder.chkImage =（复选框）convertView.findViewById（R.id.chkImage）;
convertView.setTag（保持器）;
} 其他 {
支架=（ViewHolder）convertView.getTag（）;
}
holder.chkImage.setId（位置）;
holder.imgThumb.setId（位置）;
holder.chkImage.setOnClickListener（新OnClickListener（）{
公共无效的onClick（视图v）{
复选框CB =（复选框）V;
INT的id = cb.getId（）;
如果（thumbnailsselection [ID]）{
cb.setChecked（假）;
thumbnailsselection [ID] = FALSE;
} 其他 {
cb.setChecked（真正的）;
thumbnailsselection [ID] =真;
}
}
}）;
holder.imgThumb.setOnClickListener（新OnClickListener（）{
公共无效的onClick（视图v）{
INT的id = holder.chkImage.getId（）;
如果（thumbnailsselection [ID]）{
holder.chkImage.setChecked（假）;
thumbnailsselection [ID] = FALSE;
} 其他 {
holder.chkImage.setChecked（真正的）;
thumbnailsselection [ID] =真;
}
}
}）;
尝试 {
setBitmap（holder.imgThumb，IDS [位置]）;
}赶上（的Throwable E）{
}
holder.chkImage.setChecked（thumbnailsselection [位置]）;
holder.id =位置;
返回convertView;
}
}
/ **
*内部类
* @author tasol
* /
类ViewHolder {
ImageView的imgThumb;
复选框chkImage;
INT ID;
}
}
I am making a project in which i want to select multiple photos from gallery and want to save that in imageview array. I am able to import single image and save at imageview Can anyone tell please how may i import multiple images and save in array or different imageviews?
MainActivity extends Activity implements OnClickListener {
Button addphoto, save;
ImageView img1[];
Bitmap yourbitmap, resized;
int RESULT_LOAD_IMAGE1 =1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addphoto = (Button)findViewById(R.id.add);
img1[0] = (ImageView)findViewById(R.id.imageView1);
save = (Button)findViewById(R.id.save);
addphoto.setOnClickListener(this);
save.setOnClickListener(this);
}
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
switch(arg0.getId()){
case R.id.add:
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Picture"), RESULT_LOAD_IMAGE1);
break;
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE1 && resultCode == RESULT_OK
&& null != data) {
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 picturePath = cursor.getString(columnIndex);
cursor.close();
try {
yourbitmap = BitmapFactory.decodeFile(picturePath);
resized= Bitmap.createScaledBitmap(yourbitmap, 200,300, true);
img1[0].setImageBitmap(resized);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
解决方案
Implement custom gallery selector with below code :
activity_main
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content" android:id="@+id/scroll1"
>
<LinearLayout
android:id="@+id/lnrImages"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
</ScrollView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:id="@+id/linearLayout">
<Button
android:id="@+id/btnAddPhots"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="Add Phots"/>
<Button
android:id="@+id/btnSaveImages"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:text="Save"/>
</LinearLayout>
custom_gallery
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="vertical">
<GridView
android:id="@+id/grdImages"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:columnWidth="90dp"
android:stretchMode="columnWidth"
android:gravity="center"/>
<Button
android:id="@+id/btnSelect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Select"
android:layout_marginTop="5dp"/>
</LinearLayout>
custom_gallery_item
<ImageView
android:id="@+id/imgThumb"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<CheckBox
android:id="@+id/chkImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="top|right"/>
</FrameLayout>
MainActivity
public class MainActivity extends Activity implements View.OnClickListener{
private LinearLayout lnrImages;
private Button btnAddPhots;
private Button btnSaveImages;
private ArrayList<String> imagesPathList;
private Bitmap yourbitmap;
private Bitmap resized;
private final int PICK_IMAGE_MULTIPLE =1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lnrImages = (LinearLayout)findViewById(R.id.lnrImages);
btnAddPhots = (Button)findViewById(R.id.btnAddPhots);
btnSaveImages = (Button)findViewById(R.id.btnSaveImages);
btnAddPhots.setOnClickListener(this);
btnSaveImages.setOnClickListener(this);
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.btnAddPhots:
Intent intent = new Intent(MainActivity.this,CustomPhotoGalleryActivity.class);
startActivityForResult(intent,PICK_IMAGE_MULTIPLE);
break;
case R.id.btnSaveImages:
if(imagesPathList !=null){
if(imagesPathList.size()>1) {
Toast.makeText(MainActivity.this, imagesPathList.size() + " no of images are selected", Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(MainActivity.this, imagesPathList.size() + " no of image are selected", Toast.LENGTH_SHORT).show();
}
}else{
Toast.makeText(MainActivity.this," no images are selected", Toast.LENGTH_SHORT).show();
}
break;
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if(requestCode == PICK_IMAGE_MULTIPLE){
imagesPathList = new ArrayList<String>();
String[] imagesPath = data.getStringExtra("data").split("\\|");
try{
lnrImages.removeAllViews();
}catch (Throwable e){
e.printStackTrace();
}
for (int i=0;i<imagesPath.length;i++){
imagesPathList.add(imagesPath[i]);
yourbitmap = BitmapFactory.decodeFile(imagesPath[i]);
ImageView imageView = new ImageView(this);
imageView.setImageBitmap(yourbitmap);
imageView.setAdjustViewBounds(true);
lnrImages.addView(imageView);
}
}
}
}
}
CustomPhotoGalleryActivity
public class CustomPhotoGalleryActivity extends Activity {
private GridView grdImages;
private Button btnSelect;
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.custom_gallery);
grdImages= (GridView) findViewById(R.id.grdImages);
btnSelect= (Button) findViewById(R.id.btnSelect);
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);
}
imageAdapter = new ImageAdapter();
grdImages.setAdapter(imageAdapter);
imagecursor.close();
btnSelect.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<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();
}
/**
* 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.custom_gallery_item, null);
holder.imgThumb = (ImageView) convertView.findViewById(R.id.imgThumb);
holder.chkImage = (CheckBox) convertView.findViewById(R.id.chkImage);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.chkImage.setId(position);
holder.imgThumb.setId(position);
holder.chkImage.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
CheckBox cb = (CheckBox) v;
int id = cb.getId();
if (thumbnailsselection[id]) {
cb.setChecked(false);
thumbnailsselection[id] = false;
} else {
cb.setChecked(true);
thumbnailsselection[id] = true;
}
}
});
holder.imgThumb.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
int id = holder.chkImage.getId();
if (thumbnailsselection[id]) {
holder.chkImage.setChecked(false);
thumbnailsselection[id] = false;
} else {
holder.chkImage.setChecked(true);
thumbnailsselection[id] = true;
}
}
});
try {
setBitmap(holder.imgThumb, ids[position]);
} catch (Throwable e) {
}
holder.chkImage.setChecked(thumbnailsselection[position]);
holder.id = position;
return convertView;
}
}
/**
* Inner class
* @author tasol
*/
class ViewHolder {
ImageView imgThumb;
CheckBox chkImage;
int id;
}
}
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