Android WhatsApp在共享图像时是否使用本机图库
我想知道WhatsApp是使用原生Android gallery还是自己的定制gallery。基本上,这个图库允许用户选择多个图像。但是如果我要使用本机图像库,我似乎找不到任何方法来选择多个图像。知道Android WhatsApp在共享图像时是否使用本机图库,android,android-intent,gallery,whatsapp,Android,Android Intent,Gallery,Whatsapp,我想知道WhatsApp是使用原生Android gallery还是自己的定制gallery。基本上,这个图库允许用户选择多个图像。但是如果我要使用本机图像库,我似乎找不到任何方法来选择多个图像。知道Intent.ACTION\u PICK是调用本机图像库的基本方法,但这允许用户一次选择一个图像。由于WhatsApp允许用户选择多个图像,因此我想找到一种方法来实现这一点。不确定是否可以通过Intent.ACTION\u SEND\u MULTIPLE执行此操作。有什么帮助/建议吗 为此,我创建了
Intent.ACTION\u PICK
是调用本机图像库的基本方法,但这允许用户一次选择一个图像。由于WhatsApp允许用户选择多个图像,因此我想找到一种方法来实现这一点。不确定是否可以通过Intent.ACTION\u SEND\u MULTIPLE
执行此操作。有什么帮助/建议吗 为此,我创建了自定义图库
试试看,这很有魅力
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.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 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();
}
/**
* 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.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;
}
}
导入android.app.Activity;
导入android.content.Context;
导入android.content.Intent;
导入android.database.Cursor;
导入android.graphics.Bitmap;
导入android.os.AsyncTask;
导入android.os.Bundle;
导入android.provider.MediaStore;
导入android.util.Log;
导入android.view.LayoutInflater;
导入android.view.view;
导入android.view.view.OnClickListener;
导入android.view.ViewGroup;
导入android.widget.BaseAdapter;
导入android.widget.GridView;
导入android.widget.ImageView;
导入android.widget.Toast;
导入com.ijoomer.src.R;
/**
*该类包含与IjoomerPhotoGalaryActivity相关的所有方法。
*
*@作者塔索尔
*
*/
公共类IjoomerPhotoGalaryActivity扩展活动{
专用图像适配器;
私有字符串[]路径;
私有布尔[]缩略图选择;
私有int-id[];
私人整数计数;
/**
*覆盖方法
*/
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.photo_gallery);
最终字符串[]列={MediaStore.Images.Media.DATA,MediaStore.Images.Media.\u ID};
最终字符串orderBy=MediaStore.Images.Media.\u ID;
@抑制警告(“弃用”)
Cursor imagecursor=managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,columns,null,null,orderBy);
int image\u column\u index=imagecursor.getColumnIndex(MediaStore.Images.Media.ID);
this.count=imagecursor.getCount();
this.arrPath=新字符串[this.count];
ids=新整数[计数];
this.thumbnailsselection=新布尔值[this.count];
for(int i=0;i<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
<Button android:id="@+id/selectBtn"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:text="Select" android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:minWidth="200px" />
<GridView android:id="@+id/PhoneImageGrid"
android:layout_width="match_parent" android:layout_height="match_parent"
android:numColumns="auto_fit" android:verticalSpacing="10dp"
android:horizontalSpacing="10dp" android:columnWidth="90dp"
android:stretchMode="columnWidth" android:gravity="center"
android:layout_above="@id/selectBtn" />
</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
<ImageView android:id="@+id/thumbImage" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_centerInParent="true"
/>
<CheckBox android:id="@+id/itemCheckBox" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_alignParentRight="true"
android:layout_alignParentTop="true" />
</RelativeLayout>