package com.ypx.imagepicker.activity.preview;
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import android.app.Activity;
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import android.content.DialogInterface;
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import android.content.Intent;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.FrameLayout;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.fragment.app.Fragment;
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import androidx.fragment.app.FragmentActivity;
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import androidx.fragment.app.FragmentManager;
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import androidx.fragment.app.FragmentStatePagerAdapter;
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import androidx.viewpager.widget.ViewPager;
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import com.ypx.imagepicker.ImagePicker;
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import com.ypx.imagepicker.R;
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import com.ypx.imagepicker.activity.PickerActivityManager;
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import com.ypx.imagepicker.bean.ImageItem;
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import com.ypx.imagepicker.bean.ImageSet;
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import com.ypx.imagepicker.bean.selectconfig.MultiSelectConfig;
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import com.ypx.imagepicker.data.ProgressSceneEnum;
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import com.ypx.imagepicker.views.PickerUiConfig;
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import com.ypx.imagepicker.data.MediaItemsDataSource;
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import com.ypx.imagepicker.helper.launcher.PLauncher;
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import com.ypx.imagepicker.presenter.IPickerPresenter;
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import com.ypx.imagepicker.utils.PViewSizeUtils;
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import com.ypx.imagepicker.views.wx.WXPreviewControllerView;
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import com.ypx.imagepicker.views.base.PreviewControllerView;
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import java.lang.ref.WeakReference;
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import java.util.ArrayList;
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import static com.ypx.imagepicker.activity.multi.MultiImagePickerActivity.INTENT_KEY_CURRENT_INDEX;
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import static com.ypx.imagepicker.activity.multi.MultiImagePickerActivity.INTENT_KEY_SELECT_CONFIG;
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import static com.ypx.imagepicker.activity.multi.MultiImagePickerActivity.INTENT_KEY_PRESENTER;
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/**
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* Description: 预览页面，其中包含编辑预览和普通预览
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* <p>
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* Author: peixing.yang
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* Date: 2019/2/21
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* 使用文档 ：https://github.com/yangpeixing/YImagePicker/wiki/Documentation_3.x
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*/
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public class MultiImagePreviewActivity extends FragmentActivity implements MediaItemsDataSource.MediaItemProvider {
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static ImageSet currentImageSet;
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public static final String INTENT_KEY_SELECT_LIST = "selectList";
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private ViewPager mViewPager;
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private ArrayList<ImageItem> mSelectList;
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private ArrayList<ImageItem> mImageList;
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private int mCurrentItemPosition = 0;
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private MultiSelectConfig selectConfig;
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private IPickerPresenter presenter;
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private PickerUiConfig uiConfig;
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private WeakReference<Activity> activityWeakReference;
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private DialogInterface dialogInterface;
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private PreviewControllerView controllerView;
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/**
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* 预览回调
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*/
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public interface PreviewResult {
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void onResult(ArrayList<ImageItem> imageItems, boolean isCancel);
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}
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/**
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* 跳转预览
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*
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* @param activity 当前activity
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* @param imageSet 当前预览的文件夹信息
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* @param selectList 选中列表
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* @param selectConfig 配置信息
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* @param presenter presenter
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* @param position 默认选中项
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* @param result 预览回调
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*/
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public static void intent(Activity activity, ImageSet imageSet,
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ArrayList<ImageItem> selectList,
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MultiSelectConfig selectConfig,
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IPickerPresenter presenter,
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int position,
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final PreviewResult result) {
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if (activity == null || selectList == null || selectConfig == null
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|| presenter == null || result == null) {
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return;
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}
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if (imageSet != null) {
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currentImageSet = imageSet.copy();
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}
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Intent intent = new Intent(activity, MultiImagePreviewActivity.class);
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intent.putExtra(INTENT_KEY_SELECT_LIST, selectList);
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intent.putExtra(INTENT_KEY_SELECT_CONFIG, selectConfig);
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intent.putExtra(INTENT_KEY_PRESENTER, presenter);
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intent.putExtra(INTENT_KEY_CURRENT_INDEX, position);
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PLauncher.init(activity).startActivityForResult(intent, new PLauncher.Callback() {
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@Override
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public void onActivityResult(int resultCode, Intent data) {
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if (data != null && data.hasExtra(ImagePicker.INTENT_KEY_PICKER_RESULT)) {
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ArrayList mList = (ArrayList) data.getSerializableExtra(ImagePicker.INTENT_KEY_PICKER_RESULT);
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if (mList != null) {
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result.onResult(mList, resultCode == RESULT_CANCELED);
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}
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}
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}
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});
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}
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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activityWeakReference = new WeakReference<Activity>(this);
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if (isIntentDataFailed()) {
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finish();
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return;
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}
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PickerActivityManager.addActivity(this);
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setContentView(R.layout.picker_activity_preview);
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setUI();
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loadMediaPreviewList();
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}
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/**
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* @return 跳转数据是否合法
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*/
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private boolean isIntentDataFailed() {
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if (getIntent() == null || !getIntent().hasExtra(INTENT_KEY_SELECT_CONFIG)
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|| !getIntent().hasExtra(INTENT_KEY_PRESENTER)) {
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return true;
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}
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selectConfig = (MultiSelectConfig) getIntent().getSerializableExtra(INTENT_KEY_SELECT_CONFIG);
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presenter = (IPickerPresenter) getIntent().getSerializableExtra(INTENT_KEY_PRESENTER);
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mCurrentItemPosition = getIntent().getIntExtra(INTENT_KEY_CURRENT_INDEX, 0);
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ArrayList list = (ArrayList) getIntent().getSerializableExtra(INTENT_KEY_SELECT_LIST);
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if (list == null || presenter == null) {
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return true;
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}
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mSelectList = new ArrayList<ImageItem>(list);
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uiConfig = presenter.getUiConfig(activityWeakReference.get());
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return false;
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}
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/**
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* 执行返回回调
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*
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* @param isClickComplete 是否是选中
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*/
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private void notifyCallBack(boolean isClickComplete) {
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Intent intent = new Intent();
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intent.putExtra(ImagePicker.INTENT_KEY_PICKER_RESULT, mSelectList);
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setResult(isClickComplete ? ImagePicker.REQ_PICKER_RESULT_CODE : RESULT_CANCELED, intent);
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finish();
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}
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@Override
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public void onBackPressed() {
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notifyCallBack(false);
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}
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/**
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* 加载媒体文件夹
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*/
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private void loadMediaPreviewList() {
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if (currentImageSet == null) {
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initViewPager(mSelectList);
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} else if (currentImageSet.imageItems != null
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&& currentImageSet.imageItems.size() > 0
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&& currentImageSet.imageItems.size() >= currentImageSet.count) {
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initViewPager(currentImageSet.imageItems);
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} else {
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//从媒体库重新扫描
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dialogInterface = getPresenter().showProgressDialog(this, ProgressSceneEnum.loadMediaItem);
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ImagePicker.provideMediaItemsFromSet(this, currentImageSet,
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selectConfig.getMimeTypes(), this);
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}
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}
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@Override
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public void providerMediaItems(ArrayList<ImageItem> imageItems, ImageSet allVideoSet) {
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if (dialogInterface != null) {
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dialogInterface.dismiss();
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}
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initViewPager(imageItems);
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}
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/**
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* 过滤掉视频
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*
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* @param list 所有数据源
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* @return 过滤后的数据源
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*/
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private ArrayList<ImageItem> filterVideo(ArrayList<ImageItem> list) {
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if (selectConfig.isCanPreviewVideo()) {
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mImageList = new ArrayList<>(list);
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return mImageList;
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}
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mImageList = new ArrayList<>();
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int videoCount = 0;
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int nowPosition = 0;
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int i = 0;
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for (ImageItem imageItem : list) {
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if (!imageItem.isVideo() && !imageItem.isGif()) {
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mImageList.add(imageItem);
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} else {
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videoCount++;
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}
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if (i == mCurrentItemPosition) {
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nowPosition = i - videoCount;
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}
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i++;
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}
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mCurrentItemPosition = nowPosition;
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return mImageList;
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}
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/**
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* 初始化标题栏
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*/
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private void setUI() {
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mViewPager = findViewById(R.id.viewpager);
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mViewPager.setBackgroundColor(uiConfig.getPreviewBackgroundColor());
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controllerView = uiConfig.getPickerUiProvider().getPreviewControllerView(activityWeakReference.get());
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if (controllerView == null) {
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controllerView = new WXPreviewControllerView(this);
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}
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controllerView.setStatusBar();
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controllerView.initData(selectConfig, presenter, uiConfig, mSelectList);
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if (controllerView.getCompleteView() != null) {
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controllerView.getCompleteView().setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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if (PViewSizeUtils.onDoubleClick()) {
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return;
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}
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notifyCallBack(true);
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}
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});
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}
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FrameLayout mPreviewPanel = findViewById(R.id.mPreviewPanel);
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mPreviewPanel.addView(controllerView, new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
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ViewGroup.LayoutParams.MATCH_PARENT));
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}
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/**
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* 初始化viewpager
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*/
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private void initViewPager(ArrayList<ImageItem> sourceList) {
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mImageList = filterVideo(sourceList);
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if (mImageList == null || mImageList.size() == 0) {
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getPresenter().tip(this, getString(R.string.picker_str_preview_empty));
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finish();
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return;
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}
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if (mCurrentItemPosition < 0) {
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mCurrentItemPosition = 0;
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}
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TouchImageAdapter mAdapter = new TouchImageAdapter(getSupportFragmentManager(), mImageList);
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mViewPager.setAdapter(mAdapter);
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mViewPager.setOffscreenPageLimit(1);
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mViewPager.setCurrentItem(mCurrentItemPosition, false);
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ImageItem item = mImageList.get(mCurrentItemPosition);
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controllerView.onPageSelected(mCurrentItemPosition, item, mImageList.size());
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mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
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@Override
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public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
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}
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@Override
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public void onPageSelected(int position) {
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mCurrentItemPosition = position;
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ImageItem item = mImageList.get(mCurrentItemPosition);
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controllerView.onPageSelected(mCurrentItemPosition, item, mImageList.size());
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}
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@Override
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public void onPageScrollStateChanged(int state) {
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}
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});
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}
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/**
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* 预览列表点击
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*
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* @param imageItem 当前图片
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*/
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public void onPreviewItemClick(ImageItem imageItem) {
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mViewPager.setCurrentItem(mImageList.indexOf(imageItem), false);
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}
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public IPickerPresenter getPresenter() {
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return presenter;
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}
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public PreviewControllerView getControllerView() {
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return controllerView;
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}
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static class TouchImageAdapter extends FragmentStatePagerAdapter {
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private ArrayList<ImageItem> imageItems;
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TouchImageAdapter(FragmentManager fm, ArrayList<ImageItem> imageItems) {
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super(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT);
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this.imageItems = imageItems;
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if (this.imageItems == null) {
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this.imageItems = new ArrayList<>();
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}
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}
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@Override
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public int getCount() {
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return imageItems.size();
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}
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@NonNull
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@Override
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public Fragment getItem(int position) {
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return SinglePreviewFragment.newInstance(imageItems.get(position));
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}
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}
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@Override
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public void finish() {
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super.finish();
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PickerActivityManager.removeActivity(this);
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if (currentImageSet != null && currentImageSet.imageItems != null) {
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currentImageSet.imageItems.clear();
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currentImageSet = null;
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}
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}
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public static class SinglePreviewFragment extends Fragment {
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static final String KEY_URL = "key_url";
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private ImageItem imageItem;
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static SinglePreviewFragment newInstance(ImageItem imageItem) {
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SinglePreviewFragment fragment = new SinglePreviewFragment();
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Bundle bundle = new Bundle();
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bundle.putSerializable(SinglePreviewFragment.KEY_URL, imageItem);
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fragment.setArguments(bundle);
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return fragment;
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}
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@Override
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public void onCreate(@Nullable Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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Bundle bundle = getArguments();
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if (bundle == null) {
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return;
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}
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imageItem = (ImageItem) bundle.getSerializable(KEY_URL);
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}
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PreviewControllerView getControllerView() {
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return ((MultiImagePreviewActivity) getActivity()).getControllerView();
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}
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IPickerPresenter getPresenter() {
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return ((MultiImagePreviewActivity) getActivity()).getPresenter();
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}
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@Nullable
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@Override
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public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
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return getControllerView().getItemView(this, imageItem, getPresenter());
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}
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}
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}
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