package com.lling.photopicker;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.provider.MediaStore;
import android.util.TypedValue;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewStub;
import android.view.animation.LinearInterpolator;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.lling.photopicker.adapters.FolderAdapter;
import com.lling.photopicker.adapters.PhotoAdapter;
import com.lling.photopicker.beans.Photo;
import com.lling.photopicker.beans.PhotoFolder;
import com.lling.photopicker.utils.LogUtils;
import com.lling.photopicker.utils.OtherUtils;
import com.lling.photopicker.utils.PhotoUtils;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* @Class: PhotoPickerActivity
* @Description: 照片选择界面
* @author: lling(www.liuling123.com)
* @Date: 2015/11/4
*/
public class PhotoPickerActivity extends Activity implements PhotoAdapter.PhotoClickCallBack {
public final static String TAG = "PhotoPickerActivity";
public final static String KEY_RESULT = "picker_result";
public final static int REQUEST_CAMERA = 1;
/** 是否显示相机 */
public final static String EXTRA_SHOW_CAMERA = "is_show_camera";
/** 照片选择模式 */
public final static String EXTRA_SELECT_MODE = "select_mode";
/** 最大选择数量 */
public final static String EXTRA_MAX_MUN = "max_num";
/** 单选 */
public final static int MODE_SINGLE = 0;
/** 多选 */
public final static int MODE_MULTI = 1;
/** 默认最大选择数量 */
public final static int DEFAULT_NUM = 9;
private final static String ALL_PHOTO = "所有图片";
/** 是否显示相机，默认不显示 */
private boolean mIsShowCamera = false;
/** 照片选择模式，默认是单选模式 */
private int mSelectMode = 0;
/** 最大选择数量，仅多选模式有用 */
private int mMaxNum;
private GridView mGridView;
private Map<String, PhotoFolder> mFolderMap;
private List<Photo> mPhotoLists = new ArrayList<>();
private ArrayList<String> mSelectList = new ArrayList<>();
private PhotoAdapter mPhotoAdapter;
private ProgressDialog mProgressDialog;
private ListView mFolderListView;
private TextView mPhotoNumTV;
private TextView mPhotoNameTV;
private Button mCommitBtn;
/** 文件夹列表是否处于显示状态 */
boolean mIsFolderViewShow = false;
/** 文件夹列表是否被初始化，确保只被初始化一次 */
boolean mIsFolderViewInit = false;
/** 拍照时存储拍照结果的临时文件 */
private File mTmpFile;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_photo_picker);
initIntentParams();
initView();
if (!OtherUtils.isExternalStorageAvailable()) {
Toast.makeText(this, "No SD card!", Toast.LENGTH_SHORT).show();
return;
}
getPhotosTask.execute();
}
private void initView() {
mGridView = (GridView) findViewById(R.id.photo_gridview);
mPhotoNumTV = (TextView) findViewById(R.id.photo_num);
mPhotoNameTV = (TextView) findViewById(R.id.floder_name);
findViewById(R.id.bottom_tab_bar).setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
//消费触摸事件，防止触摸底部tab栏也会选中图片
return true;
}
});
findViewById(R.id.btn_back).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
}
/**
* 初始化选项参数
*/
private void initIntentParams() {
mIsShowCamera = getIntent().getBooleanExtra(EXTRA_SHOW_CAMERA, false);
mSelectMode = getIntent().getIntExtra(EXTRA_SELECT_MODE, MODE_SINGLE);
mMaxNum = getIntent().getIntExtra(EXTRA_MAX_MUN, DEFAULT_NUM);
if(mSelectMode == MODE_MULTI) {
//如果是多选模式，需要将确定按钮初始化以及绑定事件
mCommitBtn = (Button) findViewById(R.id.commit);
mCommitBtn.setVisibility(View.VISIBLE);
mCommitBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mSelectList.addAll(mPhotoAdapter.getmSelectedPhotos());
returnData();
}
});
}
}
private void getPhotosSuccess() {
mProgressDialog.dismiss();
mPhotoLists.addAll(mFolderMap.get(ALL_PHOTO).getPhotoList());
mPhotoNumTV.setText(OtherUtils.formatResourceString(getApplicationContext(),
R.string.photos_num, mPhotoLists.size()));
mPhotoAdapter = new PhotoAdapter(this.getApplicationContext(), mPhotoLists);
mPhotoAdapter.setIsShowCamera(mIsShowCamera);
mPhotoAdapter.setSelectMode(mSelectMode);
mPhotoAdapter.setMaxNum(mMaxNum);
mPhotoAdapter.setPhotoClickCallBack(this);
mGridView.setAdapter(mPhotoAdapter);
Set<String> keys = mFolderMap.keySet();
final List<PhotoFolder> folders = new ArrayList<>();
for (String key : keys) {
if (ALL_PHOTO.equals(key)) {
PhotoFolder folder = mFolderMap.get(key);
folder.setIsSelected(true);
folders.add(0, folder);
} else {
folders.add(mFolderMap.get(key));
}
}
mPhotoNameTV.setOnClickListener(new View.OnClickListener() {
@TargetApi(Build.VERSION_CODES.KITKAT)
@Override
public void onClick(View v) {
toggleFolderList(folders);
}
});
mGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (mPhotoAdapter.isShowCamera() && position == 0) {
showCamera();
return;
}
selectPhoto(mPhotoAdapter.getItem(position));
}
});
}
/**
* 点击选择某张照片
* @param photo
*/
private void selectPhoto(Photo photo) {
LogUtils.e(TAG, "selectPhoto");
if(photo == null) {
return;
}
String path = photo.getPath();
if(mSelectMode == MODE_SINGLE) {
mSelectList.add(path);
returnData();
}
}
@Override
public void onPhotoClick() {
LogUtils.e(TAG, "onPhotoClick");
List<String> list = mPhotoAdapter.getmSelectedPhotos();
if(list != null && list.size()>0) {
mCommitBtn.setEnabled(true);
mCommitBtn.setText(OtherUtils.formatResourceString(getApplicationContext(),
R.string.commit_num, list.size(), mMaxNum));
} else {
mCommitBtn.setEnabled(false);
mCommitBtn.setText(R.string.commit);
}
}
/**
* 返回选择图片的路径
*/
private void returnData() {
// 返回已选择的图片数据
Intent data = new Intent();
data.putStringArrayListExtra(KEY_RESULT, mSelectList);
setResult(RESULT_OK, data);
finish();
}
/**
* 显示或者隐藏文件夹列表
* @param folders
*/
private void toggleFolderList(final List<PhotoFolder> folders) {
//初始化文件夹列表
if(!mIsFolderViewInit) {
ViewStub folderStub = (ViewStub) findViewById(R.id.floder_stub);
folderStub.inflate();
View dimLayout = findViewById(R.id.dim_layout);
mFolderListView = (ListView) findViewById(R.id.listview_floder);
final FolderAdapter adapter = new FolderAdapter(this, folders);
mFolderListView.setAdapter(adapter);
mFolderListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
for (PhotoFolder folder : folders) {
folder.setIsSelected(false);
}
PhotoFolder folder = folders.get(position);
folder.setIsSelected(true);
adapter.notifyDataSetChanged();
mPhotoLists.clear();
mPhotoLists.addAll(folder.getPhotoList());
if (ALL_PHOTO.equals(folder.getName())) {
mPhotoAdapter.setIsShowCamera(mIsShowCamera);
} else {
mPhotoAdapter.setIsShowCamera(false);
}
//这里重新设置adapter而不是直接notifyDataSetChanged，是让GridView返回顶部
mGridView.setAdapter(mPhotoAdapter);
mPhotoNumTV.setText(OtherUtils.formatResourceString(getApplicationContext(),
R.string.photos_num, mPhotoLists.size()));
mPhotoNameTV.setText(folder.getName());
toggle();
}
});
dimLayout.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (mIsFolderViewShow) {
toggle();
return true;
} else {
return false;
}
}
});
initAnimation(dimLayout);
mIsFolderViewInit = true;
}
toggle();
}
/**
* 弹出或者收起文件夹列表
*/
private void toggle() {
if(mIsFolderViewShow) {
outAnimatorSet.start();
mIsFolderViewShow = false;
} else {
inAnimatorSet.start();
mIsFolderViewShow = true;
}
}
/**
* 初始化文件夹列表的显示隐藏动画
*/
AnimatorSet inAnimatorSet = new AnimatorSet();
AnimatorSet outAnimatorSet = new AnimatorSet();
private void initAnimation(View dimLayout) {
ObjectAnimator alphaInAnimator, alphaOutAnimator, transInAnimator, transOutAnimator;
//获取actionBar的高
TypedValue tv = new TypedValue();
int actionBarHeight = 0;
if (getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true)) {
actionBarHeight = TypedValue.complexToDimensionPixelSize(tv.data, getResources().getDisplayMetrics());
}
/**
* 这里的高度是，屏幕高度减去上、下tab栏，并且上面留有一个tab栏的高度
* 所以这里减去3个actionBarHeight的高度
*/
int height = OtherUtils.getHeightInPx(this) - 3*actionBarHeight;
alphaInAnimator = ObjectAnimator.ofFloat(dimLayout, "alpha", 0f, 0.7f);
alphaOutAnimator = ObjectAnimator.ofFloat(dimLayout, "alpha", 0.7f, 0f);
transInAnimator = ObjectAnimator.ofFloat(mFolderListView, "translationY", height , 0);
transOutAnimator = ObjectAnimator.ofFloat(mFolderListView, "translationY", 0, height);
LinearInterpolator linearInterpolator = new LinearInterpolator();
inAnimatorSet.play(transInAnimator).with(alphaInAnimator);
inAnimatorSet.setDuration(300);
inAnimatorSet.setInterpolator(linearInterpolator);
outAnimatorSet.play(transOutAnimator).with(alphaOutAnimator);
outAnimatorSet.setDuration(300);
outAnimatorSet.setInterpolator(linearInterpolator);
}
/**
* 选择文件夹
* @param photoFolder
*/
public void selectFolder(PhotoFolder photoFolder) {
mPhotoAdapter.setDatas(photoFolder.getPhotoList());
mPhotoAdapter.notifyDataSetChanged();
}
/**
* 获取照片的异步任务
*/
private AsyncTask getPhotosTask = new AsyncTask() {
@Override
protected void onPreExecute() {
mProgressDialog = ProgressDialog.show(PhotoPickerActivity.this, null, "loading...");
}
@Override
protected Object doInBackground(Object[] params) {
mFolderMap = PhotoUtils.getPhotos(
PhotoPickerActivity.this.getApplicationContext());
return null;
}
@Override
protected void onPostExecute(Object o) {
getPhotosSuccess();
}
};
/**
* 选择相机
*/
private void showCamera() {
// 跳转到系统照相机
Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if(cameraIntent.resolveActivity(getPackageManager()) != null){
// 设置系统相机拍照后的输出路径
// 创建临时文件
mTmpFile = OtherUtils.createFile(getApplicationContext());
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(mTmpFile));
startActivityForResult(cameraIntent, REQUEST_CAMERA);
}else{
Toast.makeText(getApplicationContext(),
R.string.msg_no_camera, Toast.LENGTH_SHORT).show();
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// 相机拍照完成后，返回图片路径
if(requestCode == REQUEST_CAMERA){
if(resultCode == Activity.RESULT_OK) {
if (mTmpFile != null) {
sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" + mTmpFile.getAbsolutePath())));
mSelectList.add(mTmpFile.getAbsolutePath());
returnData();
}
}else{
if(mTmpFile != null && mTmpFile.exists()){
mTmpFile.delete();
}
}
}
}
}
