Android仿微信朋友圈图片选择器

<?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:orientation="vertical"> <RelativeLayout android:layout_width="fill_parent" android:background="#f7614d" android:paddingLeft="37px" android:layout_height="70dp"> <TextView  android:layout_centerInParent="true"  android:text="附图案例"  android:textSize="25sp"  android:textColor="#ffffff"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  /> </RelativeLayout> <View android:layout_width="fill_parent" android:layout_height="20dp" android:background="#00000000"/> <LinearLayout android:paddingLeft="10dp" android:paddingRight="10dp" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical"> <TextView  android:id="@+id/tv11"  android:layout_alignParentLeft="true"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:text="文字描述"  android:textSize="23sp"  /> <View  android:layout_width="fill_parent"  android:layout_height="10dp"  android:background="#00000000"/> <EditText  android:paddingTop="20dp"  android:background="@drawable/bg_et"  android:id="@+id/editText"  android:inputType="textMultiLine"  android:gravity="left|top"  android:padding="5dp"  android:maxLength="300"  android:hint="客官，写点评论吧..."  android:textColorHint="#808080"  android:textSize="20sp"  android:layout_width="fill_parent"  android:layout_height="150dp" /> <View  android:layout_width="fill_parent"  android:layout_height="20dp"  android:background="#00000000"/> <TextView  android:id="@+id/tv"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:text="附加图片"  android:textSize="23sp" /> <View  android:layout_width="fill_parent"  android:layout_height="10dp"  android:background="#00000000"/> <GridView  android:id="@+id/gridview"  android:layout_width="fill_parent"  android:layout_height="200dp"  android:horizontalSpacing="2dp"  android:verticalSpacing="5dp"  android:scrollbars="none"  android:listSelector="#00000000"  android:numColumns="3" > </GridView> <Button  android:id="@+id/submit_btn"  android:layout_width="wrap_content"  android:layout_height="50dp"  android:layout_centerInParent="true"  android:background="@drawable/bg_submit"  android:text="提交"  android:textSize="23sp"  android:textColor="#FFFFFF"/> </LinearLayout></LinearLayout>

<?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:orientation="vertical" > <RelativeLayout android:layout_width="match_parent" android:layout_height="48dp" android:background="#c000" > <Button  android:id="@+id/btn_back"  android:layout_width="24dp"  android:layout_height="24dp"  android:layout_alignParentLeft="true"  android:layout_centerVertical="true"  android:layout_margin="8dp"  android:background="@drawable/ic_back_light"  android:onClick="back" /> <TextView  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_centerVertical="true"  android:layout_marginLeft="8dp"  android:layout_toRightOf="@+id/btn_back"  android:text="图片"  android:textColor="#ffffff"  android:textSize="16sp" /> <Button  android:id="@+id/btn_ok"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_alignParentRight="true"  android:layout_centerVertical="true"  android:layout_marginRight="8dp"  android:background="@null"  android:gravity="center"  android:onClick="ok"  android:text="完成"  android:textColor="#fff"  android:textSize="14sp" /> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:background="#d000" > <GridView  android:id="@+id/gridview"  android:layout_width="match_parent"  android:layout_height="match_parent"  android:layout_above="@+id/bottom"  android:horizontalSpacing="3dp"  android:numColumns="3"  android:scrollbars="none"  android:verticalSpacing="5dp" > </GridView> <RelativeLayout  android:id="@+id/bottom"  android:layout_width="match_parent"  android:layout_height="48dp"  android:layout_alignParentBottom="true"  android:background="#c000" >  <Button  android:id="@+id/btn_select"  android:layout_width="wrap_content"  android:layout_height="match_parent"  android:layout_alignParentLeft="true"  android:layout_centerVertical="true"  android:layout_margin="8dp"  android:background="@drawable/spinner_bg"  android:onClick="select"  android:text="所有图片"  android:textColor="#fff"  android:textSize="14sp" /> </RelativeLayout> <ListView  android:id="@+id/listview"  android:layout_width="match_parent"  android:layout_height="360dp"  android:layout_above="@id/bottom"  android:background="#fff"  android:visibility="gone" > </ListView> </RelativeLayout></LinearLayout>

package com.custompictureselect;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.graphics.BitmapFactory;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.view.WindowManager;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.EditText;import android.widget.GridView;import android.widget.ImageView;import com.nostra13.universalimageloader.cache.disc.naming.Md5FileNameGenerator;import com.nostra13.universalimageloader.core.ImageLoader;import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;import com.nostra13.universalimageloader.core.assist.QueueProcessingType;import java.util.ArrayList;public class MainActivity extends Activity { private GridView gridview; private EditText editText ; private GridAdapter gridAdapter; private Context context ; private static final int REQUEST_PICK = 0; //存放所有选择的照片 private ArrayList<String> allSelectedPicture = new ArrayList<String>(); //存放从选择界面选择的照片 private ArrayList<String> selectedPicture = new ArrayList<String>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); context = this ; //设置在activity启动的时候输入法默认是不开启的 getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN); ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(this)  .threadPriority(Thread.NORM_PRIORITY - 2)//设置当前线程的优先级  .denyCacheImageMultipleSizesInMemory()  .diskCacheFileNameGenerator(new Md5FileNameGenerator())//使用MD5对UIL进行加密命名  .diskCacheSize(100 * 1024 * 1024)//50 Mb sd卡(本地)缓存的最大值  .diskCacheFileCount(300)// 可以缓存的文件数量  .tasksProcessingOrder(QueueProcessingType.LIFO)//后进先出  .build(); //初始化操作 ImageLoader.getInstance().init(config); initView(); } /** * 初始化视图 */ private void initView(){ editText = (EditText) findViewById(R.id.editText); //显示图片 gridview = (GridView) findViewById(R.id.gridview); gridAdapter = new GridAdapter(); gridview.setAdapter(gridAdapter); } /** * 展示图片的GridView的适配器 */ class GridAdapter extends BaseAdapter { public LayoutInflater layoutInflater = LayoutInflater.from(context); @Override public int getCount() {  return allSelectedPicture.size()+ 1; } @Override public Object getItem(int position) {  return position; } @Override public long getItemId(int position) {  return position; } @Override public View getView(final int position, View convertView, ViewGroup parent) {  ViewHolder holder = null ;  if (convertView == null) {  holder = new ViewHolder();  convertView = layoutInflater.inflate(R.layout.childgrid_item, null);  holder.image = (ImageView) convertView.findViewById(R.id.child_iv);  holder.btn = (Button) convertView.findViewById(R.id.child_delete);  holder.image.setScaleType(ImageView.ScaleType.CENTER_CROP);  convertView.setTag(holder);  }  else{  holder = (ViewHolder) convertView.getTag();  }  if (position == allSelectedPicture.size()) {  holder.image.setImageBitmap(BitmapFactory.decodeResource(   context.getResources(), R.drawable.icon_addpic));  holder.btn.setVisibility(View.GONE);  holder.image.setOnClickListener(new View.OnClickListener() {   @Override   public void onClick(View v) {   selectClick();   }  });  if (position == 3) {   holder.image.setVisibility(View.GONE);  }  } else {  ImageLoader.getInstance().displayImage("file://" + allSelectedPicture.get(position),   holder.image);  holder.btn.setOnClickListener(new View.OnClickListener() {   @Override   public void onClick(View v) {   //点击后移除图片   allSelectedPicture.remove(position);   //更新UI   gridview.setAdapter(gridAdapter);   }  });  }  return convertView; } } public class ViewHolder { public ImageView image; public Button btn ; } private void selectClick(){ Intent intent = new Intent(); intent.setClass(MainActivity.this , SelectPictureActivity.class); Bundle bundle = new Bundle(); bundle.putStringArrayList("allSelectedPicture", allSelectedPicture); intent.putExtras(bundle); if(allSelectedPicture.size()< 3){  startActivityForResult(intent, REQUEST_PICK); } } @SuppressWarnings("unchecked") @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK) {  selectedPicture = (ArrayList) data.getSerializableExtra(SelectPictureActivity.INTENT_SELECTED_PICTURE);  for(String str : selectedPicture){  if(!allSelectedPicture.contains(str)){   allSelectedPicture.add(str);   gridview.setAdapter(gridAdapter);  }  } } }}

package com.custompictureselect;import android.app.Activity;import android.content.ContentResolver;import android.content.Context;import android.content.Intent;import android.database.Cursor;import android.graphics.Bitmap;import android.net.Uri;import android.os.Bundle;import android.os.Environment;import android.provider.MediaStore;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.view.Window;import android.view.animation.Animation;import android.view.animation.Animation.AnimationListener;import android.view.animation.TranslateAnimation;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.GridView;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;import com.nostra13.universalimageloader.core.DisplayImageOptions;import com.nostra13.universalimageloader.core.ImageLoader;import com.nostra13.universalimageloader.core.assist.ImageScaleType;import java.io.File;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.HashMap;import java.util.List;public class SelectPictureActivity extends Activity { // 最多选择图片的个数 private static int MAX_NUM = 3; private static final int TAKE_PICTURE = 520; public static final String INTENT_MAX_NUM = "intent_max_num"; public static final String INTENT_SELECTED_PICTURE = "intent_selected_picture"; private Context context; private GridView gridview; private PictureAdapter adapter; /** * 临时的辅助类，用于防止同一个文件夹的多次扫描 */ private HashMap<String, Integer> tmpDir = new HashMap<String, Integer>(); private ArrayList<ImageFloder> mDirPaths = new ArrayList<ImageFloder>(); /** * 具体下载图片，缓存图片，显示图片的具体执行类，它有两个具体的方法displayImage(...)、loadImage(...)， */ private ImageLoader loader; /** * 用于指导每一个Imageloader根据网络图片的状态（空白、下载错误、正在下载）显示对应的图片， * 是否将缓存加载到磁盘上，下载完后对图片进行怎么样的处理。 */ private DisplayImageOptions options; private ContentResolver mContentResolver; //选择按钮和完成按钮 private Button btn_select, btn_ok; //图片文件的列表 private ListView listview; private FolderAdapter folderAdapter; private ImageFloder imageAll, currentImageFolder; //已选择的图片 private ArrayList<String> selectedPicture = new ArrayList<String>(); private String cameraPath = null; private int isExisted ; private ArrayList<String> existedPictureList = new ArrayList<String>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); setContentView(R.layout.activity_select_picture); MAX_NUM = getIntent().getIntExtra(INTENT_MAX_NUM, 3); Bundle bundle = getIntent().getExtras(); existedPictureList = bundle.getStringArrayList("allSelectedPicture"); isExisted = existedPictureList.size(); context = this; mContentResolver = getContentResolver(); loader = ImageLoader.getInstance(); options = new DisplayImageOptions.Builder()  .showImageOnLoading(R.drawable.ic_launcher)//设置图片在下载期间显示的图片  .showImageForEmptyUri(R.drawable.ic_launcher)//设置图片Uri为空或是错误的时候显示的图片  .showImageOnFail(R.drawable.ic_launcher)//设置图片加载/解码过程中错误时候显示的图片  .cacheInMemory(true)//设置下载的图片是否缓存在内存中  .cacheOnDisk(true) //设置下载的图片是否缓存在SD卡中  .considerExifParams(true)//启用EXIF和JPEG图像格式  .imageScaleType(ImageScaleType.EXACTLY)//图像将完全按比例缩小的目标大小  .bitmapConfig(Bitmap.Config.RGB_565)//设置图片的解码类型  .build(); initView(); } /** * 点击"所有图片"按钮事件 * @param v */ public void select(View v) { if (listview.getVisibility() == View.VISIBLE) {  hideListAnimation(); } else {  listview.setVisibility(View.VISIBLE);  showListAnimation();  folderAdapter.notifyDataSetChanged(); } } /** * 设置ListView的移动的动画效果 */ public void showListAnimation() { TranslateAnimation ta = new TranslateAnimation(1, 0f, 1, 0f, 1, 1f, 1, 0f); ta.setDuration(200); listview.startAnimation(ta); } /** * 隐藏ListView的移动的动画效果 */ public void hideListAnimation() { TranslateAnimation ta = new TranslateAnimation(1, 0f, 1, 0f, 1, 0f, 1, 1f); ta.setDuration(200); listview.startAnimation(ta); ta.setAnimationListener(new AnimationListener() {  @Override  public void onAnimationStart(Animation animation) {  }  @Override  public void onAnimationRepeat(Animation animation) {  }  @Override  public void onAnimationEnd(Animation animation) {  listview.setVisibility(View.INVISIBLE);  } }); } /** * 点击完成按钮 */ public void ok(View v) { Intent data = new Intent(); data.putExtra(INTENT_SELECTED_PICTURE, selectedPicture); setResult(RESULT_OK, data); this.finish(); } /** * 视图初始化 */ private void initView() { imageAll = new ImageFloder(); imageAll.setDir(getResources().getString(R.string.dir_all_pictures)); currentImageFolder = imageAll; mDirPaths.add(imageAll); btn_ok = (Button) findViewById(R.id.btn_ok); btn_ok.setText(getResources().getString(R.string.complete) + isExisted + "/" + MAX_NUM); btn_select = (Button) findViewById(R.id.btn_select); gridview = (GridView) findViewById(R.id.gridview); adapter = new PictureAdapter(); gridview.setAdapter(adapter); gridview.setOnItemClickListener(new OnItemClickListener() {  @Override  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {  if (position == 0) {   goCamare();  }  } }); listview = (ListView) findViewById(R.id.listview); folderAdapter = new FolderAdapter(); listview.setAdapter(folderAdapter); listview.setOnItemClickListener(new OnItemClickListener() {  @Override  public void onItemClick(AdapterView<?> parent, View view, int position, long id) {  currentImageFolder = mDirPaths.get(position);  hideListAnimation();  adapter.notifyDataSetChanged();  btn_select.setText(currentImageFolder.getName());  } }); getThumbnail(); } /** * 使用相机拍照 */ protected void goCamare() { if (isExisted + selectedPicture.size() + 1 > MAX_NUM) {  Toast.makeText(context, getResources().getString(R.string.chose_at_most) + MAX_NUM + getResources().getString(R.string.sheet), Toast.LENGTH_SHORT).show();  return; } Intent openCameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); Uri imageUri = getOutputMediaFileUri(); openCameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri); startActivityForResult(openCameraIntent, TAKE_PICTURE); } /** * 用于拍照时获取输出的Uri */ protected Uri getOutputMediaFileUri() { File mediaStorageDir = new File(  Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "Night"); if (!mediaStorageDir.exists()) {  if (!mediaStorageDir.mkdirs()) {  Log.d("MyCameraApp", "failed to create directory");  return null;  } } String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()); File mediaFile = new File(mediaStorageDir.getPath() + File.separator + "IMG_" + timeStamp + ".jpg"); cameraPath = mediaFile.getAbsolutePath(); return Uri.fromFile(mediaFile); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK && cameraPath != null) {  selectedPicture.add(cameraPath);  Intent data2 = new Intent();  data2.putExtra(INTENT_SELECTED_PICTURE, selectedPicture);  setResult(RESULT_OK, data2);  this.finish(); } } public void back(View v) { onBackPressed(); } class PictureAdapter extends BaseAdapter { @Override public int getCount() {  return currentImageFolder.images.size() + 1; } @Override public Object getItem(int position) {  return null; } @Override public long getItemId(int position) {  return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) {  //自定义的一个类用来缓存convertview  ViewHolder holder = null;  if (convertView == null) {  convertView = View.inflate(context, R.layout.grid_item_picture, null);  holder = new ViewHolder();  holder.iv = (ImageView) convertView.findViewById(R.id.iv);  holder.checkBox = (Button) convertView.findViewById(R.id.check);  convertView.setTag(holder);  } else {  holder = (ViewHolder) convertView.getTag();  }  if (position == 0) {//拍摄图片  holder.iv.setImageResource(R.drawable.pickphotos_to_camera_normal);  holder.checkBox.setVisibility(View.INVISIBLE);  } else {  position = position - 1;  holder.checkBox.setVisibility(View.VISIBLE);  final ImageItem item = currentImageFolder.images.get(position);  //显示图片  loader.displayImage("file://" + item.path, holder.iv, options);  //是否选中  boolean isSelected = (selectedPicture.contains(item.path) || existedPictureList.contains(item.path));  holder.checkBox.setOnClickListener(new OnClickListener() {   @Override   public void onClick(View v) {   //若选中的图片多于所设置的上限，不再加入   if (!v.isSelected() && isExisted + selectedPicture.size() + 1 > MAX_NUM) {    Toast.makeText(context, getResources().getString(R.string.chose_at_most) + MAX_NUM + getResources().getString(R.string.sheet), Toast.LENGTH_SHORT).show();    return;   }   //二次选择，移除   if (selectedPicture.contains(item.path)|| existedPictureList.contains(item.path)) {    selectedPicture.remove(item.path);   } else {    //加入数组    selectedPicture.add(item.path);   }   btn_ok.setEnabled(selectedPicture.size()>0);   btn_ok.setText(getResources().getString(R.string.complete) + (selectedPicture.size()+ isExisted) + "/" + MAX_NUM);   v.setSelected(selectedPicture.contains(item.path)|| existedPictureList.contains(item.path));   }  });  holder.checkBox.setSelected(isSelected);  }  return convertView; } } //自定义的一个类用来缓存convertview class ViewHolder { ImageView iv; Button checkBox; } /** * 所有图片 */ class FolderAdapter extends BaseAdapter { @Override public int getCount() {  return mDirPaths.size(); } @Override public Object getItem(int position) {  return null; } @Override public long getItemId(int position) {  return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) {  FolderViewHolder holder = null;  if (convertView == null) {  convertView = View.inflate(context, R.layout.list_dir_item, null);  holder = new FolderViewHolder();  holder.id_dir_item_image = (ImageView) convertView.findViewById(R.id.id_dir_item_image);  holder.id_dir_item_name = (TextView) convertView.findViewById(R.id.id_dir_item_name);  holder.id_dir_item_count = (TextView) convertView.findViewById(R.id.id_dir_item_count);  holder.choose = (ImageView) convertView.findViewById(R.id.choose);  convertView.setTag(holder);  } else {  holder = (FolderViewHolder) convertView.getTag();  }  ImageFloder item = mDirPaths.get(position);  loader.displayImage("file://" + item.getFirstImagePath(), holder.id_dir_item_image, options);  holder.id_dir_item_count.setText(item.images.size() + getResources().getString(R.string.sheet));  holder.id_dir_item_name.setText(item.getName());  holder.choose.setVisibility(currentImageFolder == item ? View.VISIBLE : View.GONE);  return convertView; } } //自定义的一个类用来缓存convertview class FolderViewHolder { ImageView id_dir_item_image; ImageView choose; TextView id_dir_item_name; TextView id_dir_item_count; } /** * 获取缩略图 */ private void getThumbnail() { Cursor mCursor = mContentResolver.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,  new String[] { MediaStore.Images.ImageColumns.DATA }, "", null,  MediaStore.MediaColumns.DATE_ADDED + " DESC"); if (mCursor.moveToFirst()) {  int _date = mCursor.getColumnIndex(MediaStore.Images.Media.DATA);  do {  // 获取图片的路径  String path = mCursor.getString(_date);  imageAll.images.add(new ImageItem(path));  // 获取该图片的父路径名  File parentFile = new File(path).getParentFile();  if (parentFile == null) {   continue;  }  ImageFloder imageFloder = null;  String dirPath = parentFile.getAbsolutePath();  if (!tmpDir.containsKey(dirPath)) {   // 初始化imageFloder   imageFloder = new ImageFloder();   imageFloder.setDir(dirPath);   imageFloder.setFirstImagePath(path);   mDirPaths.add(imageFloder);   tmpDir.put(dirPath, mDirPaths.indexOf(imageFloder));  } else {   imageFloder = mDirPaths.get(tmpDir.get(dirPath));  }  imageFloder.images.add(new ImageItem(path));  } while (mCursor.moveToNext()); } mCursor.close(); tmpDir = null; } class ImageFloder { /**  * 图片的文件夹路径  */ private String dir; /**  * 第一张图片的路径  */ private String firstImagePath; /**  * 文件夹的名称  */ private String name; public List<ImageItem> images = new ArrayList<ImageItem>(); public String getDir() {  return dir; } public void setDir(String dir) {  this.dir = dir;  int lastIndexOf = this.dir.lastIndexOf("/");  this.name = this.dir.substring(lastIndexOf); } public String getFirstImagePath() {  return firstImagePath; } public void setFirstImagePath(String firstImagePath) {  this.firstImagePath = firstImagePath; } public String getName() {  return name; } } class ImageItem { String path; public ImageItem(String p) {  this.path = p; } }}

 <uses-permission android:name="android.permission.INTERNET"/> <uses-feature android:name="android.hardware.camera" /> <uses-feature android:name="android.hardware.camera.autofocus" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />