From 8f316c08c666796414775a66925d141e6de6ff22 Mon Sep 17 00:00:00 2001 From: lishilin <869370440@qq.com> Date: Tue, 26 Mar 2019 11:55:57 +0800 Subject: [PATCH] =?UTF-8?q?1.=E5=9B=BE=E7=89=87=E9=A2=84=E8=A7=88RecyclerV?= =?UTF-8?q?iew=E5=92=8CPhotoView=E6=BB=91=E5=8A=A8=E5=86=B2=E7=AA=81?= =?UTF-8?q?=E9=97=AE=E9=A2=98=EF=BC=9B=202.RecyclerView=E7=9B=91=E5=90=ACo?= =?UTF-8?q?nScrollStateChanged=E4=B8=8D=E5=9B=9E=E8=B0=83SCROLL=5FSTATE=5F?= =?UTF-8?q?IDLE=E9=97=AE=E9=A2=98=E3=80=82?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../easyphotos/ui/PreviewActivity.java | 40 ++++++------- .../ui/widget/PreviewRecyclerView.java | 59 +++++++++++++++++++ .../layout/activity_preview_easy_photos.xml | 18 +++--- 3 files changed, 86 insertions(+), 31 deletions(-) create mode 100644 easyPhotos/src/main/java/com/huantansheng/easyphotos/ui/widget/PreviewRecyclerView.java diff --git a/easyPhotos/src/main/java/com/huantansheng/easyphotos/ui/PreviewActivity.java b/easyPhotos/src/main/java/com/huantansheng/easyphotos/ui/PreviewActivity.java index f5e7548e..5e53158c 100644 --- a/easyPhotos/src/main/java/com/huantansheng/easyphotos/ui/PreviewActivity.java +++ b/easyPhotos/src/main/java/com/huantansheng/easyphotos/ui/PreviewActivity.java @@ -6,6 +6,7 @@ import android.os.Bundle; import android.os.Handler; import android.support.annotation.IdRes; +import android.support.annotation.NonNull; import android.support.v4.content.ContextCompat; import android.support.v7.app.ActionBar; import android.support.v7.app.AppCompatActivity; @@ -264,31 +265,26 @@ private void initRecyclerView() { snapHelper.attachToRecyclerView(rvPhotos); rvPhotos.addOnScrollListener(new RecyclerView.OnScrollListener() { @Override - public void onScrollStateChanged(RecyclerView recyclerView, int newState) { + public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) { super.onScrollStateChanged(recyclerView, newState); - if (newState != RecyclerView.SCROLL_STATE_IDLE) { + View view = snapHelper.findSnapView(lm); + if (view == null) { return; } - int leftViewPosition = snapHelper.findTargetSnapPosition(lm, 1, rvPhotos.getHeight() / 2); - int rightViewPosition = snapHelper.findTargetSnapPosition(lm, rvPhotos.getWidth() - 1, rvPhotos.getHeight() / 2); - if (leftViewPosition == rightViewPosition) { - if (lastPosition == leftViewPosition - 1) { - return; - } - previewFragment.setSelectedPosition(-1); - tvNumber.setText(getString(R.string.preview_current_number_easy_photos, leftViewPosition, photos.size())); - lastPosition = leftViewPosition - 1; - View view = snapHelper.findSnapView(lm); - toggleSelector(); - if (null == view) { - return; - } - PreviewPhotosAdapter.PreviewPhotosViewHolder viewHolder = (PreviewPhotosAdapter.PreviewPhotosViewHolder) rvPhotos.getChildViewHolder(view); - if (viewHolder == null || viewHolder.ivPhoto == null) { - return; - } - if (viewHolder.ivPhoto.getScale() != 1f) - viewHolder.ivPhoto.setScale(1f, true); + int position = lm.getPosition(view); + if (lastPosition == position) { + return; + } + lastPosition = position; + previewFragment.setSelectedPosition(-1); + tvNumber.setText(getString(R.string.preview_current_number_easy_photos, lastPosition + 1, photos.size())); + toggleSelector(); + PreviewPhotosAdapter.PreviewPhotosViewHolder holder = (PreviewPhotosAdapter.PreviewPhotosViewHolder) rvPhotos.getChildViewHolder(view); + if (holder == null || holder.ivPhoto == null) { + return; + } + if (holder.ivPhoto.getScale() != 1f) { + holder.ivPhoto.setScale(1f, true); } } }); diff --git a/easyPhotos/src/main/java/com/huantansheng/easyphotos/ui/widget/PreviewRecyclerView.java b/easyPhotos/src/main/java/com/huantansheng/easyphotos/ui/widget/PreviewRecyclerView.java new file mode 100644 index 00000000..1a1b1c8b --- /dev/null +++ b/easyPhotos/src/main/java/com/huantansheng/easyphotos/ui/widget/PreviewRecyclerView.java @@ -0,0 +1,59 @@ +package com.huantansheng.easyphotos.ui.widget; + +import android.content.Context; +import android.support.annotation.NonNull; +import android.support.annotation.Nullable; +import android.support.v7.widget.RecyclerView; +import android.util.AttributeSet; +import android.view.MotionEvent; + +/** + * 图片预览 RecyclerView + * Create By lishilin On 2019/3/25 + */ +public class PreviewRecyclerView extends RecyclerView { + + private boolean isLock;// 是否锁住 RecyclerView ，避免和 PhotoView 双指放大缩小操作冲突 + + public PreviewRecyclerView(@NonNull Context context) { + super(context); + } + + public PreviewRecyclerView(@NonNull Context context, @Nullable AttributeSet attrs) { + super(context, attrs); + } + + public PreviewRecyclerView(@NonNull Context context, @Nullable AttributeSet attrs, int defStyle) { + super(context, attrs, defStyle); + } + + @Override + public boolean onInterceptTouchEvent(MotionEvent event) { + switch (event.getActionMasked()) { + case MotionEvent.ACTION_POINTER_DOWN:// 非第一个触点按下 + isLock = true; + break; + case MotionEvent.ACTION_UP:// 最后一个触点抬起 + isLock = false; + break; + } + if (isLock) { + return false;// 不拦截，交给子View处理 + } + return super.onInterceptTouchEvent(event); + } + + @Override + public boolean dispatchTouchEvent(MotionEvent event) { + switch (event.getActionMasked()) { + case MotionEvent.ACTION_POINTER_DOWN:// 非第一个触点按下 + isLock = true; + break; + case MotionEvent.ACTION_UP:// 最后一个触点抬起 + isLock = false; + break; + } + return super.dispatchTouchEvent(event); + } + +} diff --git a/easyPhotos/src/main/res/layout/activity_preview_easy_photos.xml b/easyPhotos/src/main/res/layout/activity_preview_easy_photos.xml index 81e8577a..58359dff 100644 --- a/easyPhotos/src/main/res/layout/activity_preview_easy_photos.xml +++ b/easyPhotos/src/main/res/layout/activity_preview_easy_photos.xml @@ -5,7 +5,7 @@ android:layout_height="match_parent" android:background="@color/easy_photos_bg_primary"> - @@ -18,9 +18,9 @@ @@ -113,9 +113,9 @@ android:id="@+id/tv_edit" android:layout_width="wrap_content" android:layout_height="42dp" - android:layout_alignParentLeft="true" - android:layout_alignParentStart="true" android:layout_below="@+id/fl_fragment" + android:layout_alignParentStart="true" + android:layout_alignParentLeft="true" android:gravity="center" android:paddingLeft="16dp" android:paddingRight="16dp" @@ -141,8 +141,8 @@ android:layout_width="wrap_content" android:layout_height="42dp" android:layout_below="@+id/fl_fragment" - android:layout_toLeftOf="@+id/iv_selector" android:layout_toStartOf="@+id/iv_selector" + android:layout_toLeftOf="@+id/iv_selector" android:gravity="center" android:text="@string/selector_easy_photos" android:textColor="@color/easy_photos_fg_primary" @@ -152,13 +152,13 @@ android:id="@+id/iv_selector" android:layout_width="wrap_content" android:layout_height="42dp" + android:layout_below="@+id/fl_fragment" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" - android:layout_below="@+id/fl_fragment" - android:paddingEnd="16dp" + android:paddingStart="6dp" android:paddingLeft="6dp" + android:paddingEnd="16dp" android:paddingRight="16dp" - android:paddingStart="6dp" app:srcCompat="@drawable/ic_selector_easy_photos" />