Files
EhViewer/app/src/main/java/com/hippo/widget/recyclerview/EasyRecyclerView.java
T

1343 lines
45 KiB
Java

/*
* Copyright (C) 2015 Hippo Seven
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hippo.widget.recyclerview;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.TransitionDrawable;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
import android.support.annotation.NonNull;
import android.support.v4.util.LongSparseArray;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.view.ActionMode;
import android.support.v7.widget.RecyclerView;
import android.util.AttributeSet;
import android.util.SparseBooleanArray;
import android.util.StateSet;
import android.view.HapticFeedbackConstants;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.SoundEffectConstants;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.accessibility.AccessibilityEvent;
import android.widget.Checkable;
import com.hippo.util.DrawableUtils;
import com.hippo.util.MathUtils;
import com.hippo.util.ViewUtils;
/**
* Add setOnItemClickListener, setOnItemLongClickListener and setChoiceMode for
* RecyclerView
*/
// Get some code from twoway-view and AbsListView.
public class EasyRecyclerView extends RecyclerView {
/**
* Represents an invalid position. All valid positions are in the range 0 to 1 less than the
* number of items in the current adapter.
*/
public static final int INVALID_POSITION = -1;
/**
* Normal list that does not indicate choices
*/
public static final int CHOICE_MODE_NONE = 0;
/**
* The list allows up to one choice
*/
public static final int CHOICE_MODE_SINGLE = 1;
/**
* The list allows multiple choices
*/
public static final int CHOICE_MODE_MULTIPLE = 2;
/**
* The list allows multiple choices in a modal selection mode
*/
public static final int CHOICE_MODE_MULTIPLE_MODAL = 3;
/**
* Controls if/how the user may choose/check items in the list
*/
private int mChoiceMode = CHOICE_MODE_NONE;
/**
* Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive.
*/
private ActionMode mChoiceActionMode;
/**
* Wrapper for the multiple choice mode callback; AbsListView needs to perform
* a few extra actions around what application code does.
*/
MultiChoiceModeWrapper mMultiChoiceModeCallback;
/**
* Running count of how many items are currently checked
*/
private int mCheckedItemCount;
/**
* Running state of which positions are currently checked
*/
private SparseBooleanArray mCheckStates;
/**
* Running state of which IDs are currently checked.
* If there is a value for a given key, the checked state for that ID is true
* and the value holds the last known position in the adapter for that id.
*/
private LongSparseArray<Integer> mCheckedIdStates;
private Adapter mAdapter;
private float mVerticalScrollFactor = 0;
private ActionBarActivity mActionBarActivity;
// For click and long click
private boolean mPrePressed = false;
private boolean mHasPerformedLongPress = false;
private View mMotionView;
private int mMotionPosition;
private CheckForTap mPendingCheckForTap;
private CheckForLongPress mPendingCheckForLongPress;
private UnsetPressedState mUnsetPressedState;
private PerformClick mPerformClick;
private final float[] mTmpPoint = new float[2];
private int mTouchSlop = -1;
private float mStartX;
private float mStartY;
private OnItemClickListener mOnItemClickListener;
private OnItemLongClickListener mOnItemLongClickListener;
/**
* Indicates whether the list selector should be drawn on top of the children or behind
*/
boolean mDrawSelectorOnTop = false;
/**
* The drawable used to draw the selector
*/
private Drawable mSelector;
/**
* The current position of the selector in the list.
*/
private int mSelectorPosition = INVALID_POSITION;
/**
* Defines the selector's location and dimension at drawing time
*/
private Rect mSelectorRect = new Rect();
/**
* The selection's left padding
*/
int mSelectionLeftPadding = 0;
/**
* The selection's top padding
*/
int mSelectionTopPadding = 0;
/**
* The selection's right padding
*/
int mSelectionRightPadding = 0;
/**
* The selection's bottom padding
*/
int mSelectionBottomPadding = 0;
private OnDrawSelectorListener mOnDrawSelectorListener;
private boolean mClipToPadding = false;
public EasyRecyclerView(Context context) {
super(context);
}
public EasyRecyclerView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public EasyRecyclerView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
/**
* You must call it if you want action mode
*
* @param actionBarActivity Can't be null
*/
public void setActionBarActivity(ActionBarActivity actionBarActivity) {
mActionBarActivity = actionBarActivity;
}
@Override
public void setClipToPadding(boolean clipToPadding) {
super.setClipToPadding(clipToPadding);
mClipToPadding = clipToPadding;
}
/**
* {@inheritDoc}
*/
@Override
public void setAdapter(RecyclerView.Adapter adapter) {
super.setAdapter(adapter);
mAdapter = adapter;
if (adapter != null) {
if (mChoiceMode != CHOICE_MODE_NONE && adapter.hasStableIds() &&
mCheckedIdStates == null) {
mCheckedIdStates = new LongSparseArray<>();
}
}
if (mCheckStates != null) {
mCheckStates.clear();
}
if (mCheckedIdStates != null) {
mCheckedIdStates.clear();
}
}
void positionSelector(int position, View sel) {
positionSelector(position, sel, false, -1, -1);
}
private void positionSelector(int position, View sel, boolean manageHotspot, float x, float y) {
final boolean positionChanged = position != mSelectorPosition;
if (position != INVALID_POSITION) {
mSelectorPosition = position;
}
final Rect selectorRect = mSelectorRect;
selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom());
// Adjust for selection padding.
selectorRect.left -= mSelectionLeftPadding;
selectorRect.top -= mSelectionTopPadding;
selectorRect.right += mSelectionRightPadding;
selectorRect.bottom += mSelectionBottomPadding;
// Update the selector drawable.
final Drawable selector = mSelector;
if (selector != null) {
if (positionChanged) {
// Wipe out the current selector state so that we can start
// over in the new position with a fresh state.
selector.setVisible(false, false);
selector.setState(StateSet.NOTHING);
}
selector.setBounds(selectorRect);
if (positionChanged) {
if (getVisibility() == VISIBLE) {
selector.setVisible(true, false);
}
updateSelectorState();
}
if (manageHotspot) {
DrawableUtils.setHotspot(selector, x, y);
}
}
/* TODO handle enable
final boolean isChildViewEnabled = mIsChildViewEnabled;
if (sel.isEnabled() != isChildViewEnabled) {
mIsChildViewEnabled = !isChildViewEnabled;
if (getSelectedItemPosition() != INVALID_POSITION) {
refreshDrawableState();
}
}
*/
}
@Override
protected void dispatchDraw(@NonNull Canvas canvas) {
boolean clipToPadding = mClipToPadding;
int saveCount = 0;
if (clipToPadding) {
saveCount = canvas.save();
final int scrollX = getScrollX();
final int scrollY = getScrollY();
canvas.clipRect(scrollX + getPaddingLeft(), scrollY + getPaddingTop(),
scrollX + getRight() - getLeft() - getPaddingRight(),
scrollY + getBottom() - getTop() - getPaddingBottom());
}
// TODO disable selector drawable state change when need not to draw selector
boolean drawSelector = mOnDrawSelectorListener == null ||
mSelectorPosition < 0 ||
mSelectorPosition >= mAdapter.getItemCount() ||
mOnDrawSelectorListener.beforeDrawSelector(mSelectorPosition);
final boolean drawSelectorOnTop = mDrawSelectorOnTop;
if (drawSelector && !drawSelectorOnTop) {
drawSelector(canvas);
}
super.dispatchDraw(canvas);
if (drawSelector && drawSelectorOnTop) {
drawSelector(canvas);
}
if (clipToPadding) {
canvas.restoreToCount(saveCount);
}
}
/**
* Indicates whether this view is in a state where the selector should be drawn. This will
* happen if we have focus but are not in touch mode, or we are in the middle of displaying
* the pressed state for an item.
*
* @return True if the selector should be shown
*/
boolean shouldShowSelector() {
return (isFocused() && !isInTouchMode()) || isPressed();
}
private void drawSelector(Canvas canvas) {
final Drawable selector = mSelector;
if (selector != null && !mSelectorRect.isEmpty()) {
selector.setBounds(mSelectorRect);
selector.draw(canvas);
}
}
public void setOnDrawSelectorListener(OnDrawSelectorListener listener) {
mOnDrawSelectorListener = listener;
}
/**
* Controls whether the selection highlight drawable should be drawn on top of the item or
* behind it.
*
* @param onTop If true, the selector will be drawn on the item it is highlighting. The default
* is false.
*/
public void setDrawSelectorOnTop(boolean onTop) {
mDrawSelectorOnTop = onTop;
}
public void setSelector(Drawable sel) {
if (mSelector != null) {
mSelector.setCallback(null);
unscheduleDrawable(mSelector);
}
mSelector = sel;
Rect padding = new Rect();
sel.getPadding(padding);
mSelectionLeftPadding = padding.left;
mSelectionTopPadding = padding.top;
mSelectionRightPadding = padding.right;
mSelectionBottomPadding = padding.bottom;
sel.setCallback(this);
updateSelectorState();
}
/**
* Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the
* selection in the list.
*
* @return the drawable used to display the selector
*/
public Drawable getSelector() {
return mSelector;
}
private void cancelDrawingSelector() {
Rect rect = mSelectorRect;
rect.left = 0;
rect.top = 0;
rect.right = 0;
rect.bottom = 0;
}
void updateSelectorState() {
if (mSelector != null) {
if (shouldShowSelector()) {
mSelector.setState(getDrawableState());
} else {
mSelector.setState(StateSet.NOTHING);
}
}
}
@Override
protected void drawableStateChanged() {
super.drawableStateChanged();
updateSelectorState();
}
@Override
protected void dispatchSetPressed(boolean pressed) {
// Don't dispatch setPressed to our children. We call setPressed on ourselves to
// get the selector in the right state, but we don't want to press each child.
}
@Override
public void dispatchDrawableHotspotChanged(float x, float y) {
// Don't dispatch hotspot changes to children. We'll manually handle
// calling drawableHotspotChanged on the correct child.
}
@Override
public boolean verifyDrawable(Drawable dr) {
return mSelector == dr || super.verifyDrawable(dr);
}
@Override
public void jumpDrawablesToCurrentState() {
super.jumpDrawablesToCurrentState();
if (mSelector != null) {
mSelector.jumpToCurrentState();
}
}
/**
* Returns the number of items currently selected. This will only be valid
* if the choice mode is not {@link #CHOICE_MODE_NONE} (default).
*
* <p>To determine the specific items that are currently selected, use one of
* the <code>getChecked*</code> methods.
*
* @return The number of items currently selected
*
* @see #getCheckedItemPosition()
* @see #getCheckedItemPositions()
* @see #getCheckedItemIds()
*/
public int getCheckedItemCount() {
return mCheckedItemCount;
}
/**
* Returns the checked state of the specified position. The result is only
* valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE}
* or {@link #CHOICE_MODE_MULTIPLE}.
*
* @param position The item whose checked state to return
* @return The item's checked state or <code>false</code> if choice mode
* is invalid
*
* @see #setChoiceMode(int)
*/
public boolean isItemChecked(int position) {
//noinspection SimplifiableIfStatement
if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) {
return mCheckStates.get(position);
}
return false;
}
/**
* Returns the currently checked item. The result is only valid if the choice
* mode has been set to {@link #CHOICE_MODE_SINGLE}.
*
* @return The position of the currently checked item or
* {@link #INVALID_POSITION} if nothing is selected
*
* @see #setChoiceMode(int)
*/
public int getCheckedItemPosition() {
if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) {
return mCheckStates.keyAt(0);
}
return INVALID_POSITION;
}
/**
* Returns the set of checked items in the list. The result is only valid if
* the choice mode has not been set to {@link #CHOICE_MODE_NONE}.
*
* @return A SparseBooleanArray which will return true for each call to
* get(int position) where position is a checked position in the
* list and false otherwise, or <code>null</code> if the choice
* mode is set to {@link #CHOICE_MODE_NONE}.
*/
public SparseBooleanArray getCheckedItemPositions() {
if (mChoiceMode != CHOICE_MODE_NONE) {
return mCheckStates;
}
return null;
}
/**
* Returns the set of checked items ids. The result is only valid if the
* choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter
* has stable IDs. ({@link android.widget.ListAdapter#hasStableIds()} == {@code true})
*
* @return A new array which contains the id of each checked item in the
* list.
*/
public long[] getCheckedItemIds() {
if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) {
return new long[0];
}
final LongSparseArray<Integer> idStates = mCheckedIdStates;
final int count = idStates.size();
final long[] ids = new long[count];
for (int i = 0; i < count; i++) {
ids[i] = idStates.keyAt(i);
}
return ids;
}
/**
* Clear any choices previously set
*/
public void clearChoices() {
if (mCheckStates != null) {
mCheckStates.clear();
}
if (mCheckedIdStates != null) {
mCheckedIdStates.clear();
}
mCheckedItemCount = 0;
updateOnScreenCheckedViews();
}
/**
* Sets the checked state of the specified position. The is only valid if
* the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or
* {@link #CHOICE_MODE_MULTIPLE}.
*
* @param position The item whose checked state is to be checked
* @param value The new checked state for the item
*/
public void setItemChecked(int position, boolean value) {
if (mChoiceMode == CHOICE_MODE_NONE) {
return;
}
// Start selection mode if needed. We don't need to if we're unchecking something.
if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) {
if (mMultiChoiceModeCallback == null ||
!mMultiChoiceModeCallback.hasWrappedCallback()) {
throw new IllegalStateException("EasyRecyclerView: attempted to start selection mode " +
"for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " +
"supplied. Call setMultiChoiceModeListener to set a callback.");
}
if (mActionBarActivity == null) {
throw new IllegalStateException("EasyRecyclerView: attempted to start selection mode " +
"for CHOICE_MODE_MULTIPLE_MODA but no ActionBarActivity was supplied. " +
"ActionBarActivity is needed to set choice mode callback. " +
"Call setActionBarActivity to set a ActionBarActivity.");
}
mChoiceActionMode = mActionBarActivity.startSupportActionMode(mMultiChoiceModeCallback);
}
if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) {
boolean oldValue = mCheckStates.get(position);
mCheckStates.put(position, value);
if (mCheckedIdStates != null && mAdapter.hasStableIds()) {
if (value) {
mCheckedIdStates.put(mAdapter.getItemId(position), position);
} else {
mCheckedIdStates.delete(mAdapter.getItemId(position));
}
}
if (oldValue != value) {
if (value) {
mCheckedItemCount++;
} else {
mCheckedItemCount--;
}
}
if (mChoiceActionMode != null) {
final long id = mAdapter.getItemId(position);
mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode,
position, id, value);
}
} else {
boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds();
// Clear all values if we're checking something, or unchecking the currently
// selected item
if (value || isItemChecked(position)) {
mCheckStates.clear();
if (updateIds) {
mCheckedIdStates.clear();
}
}
// this may end up selecting the value we just cleared but this way
// we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on
if (value) {
mCheckStates.put(position, true);
if (updateIds) {
mCheckedIdStates.put(mAdapter.getItemId(position), position);
}
mCheckedItemCount = 1;
} else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) {
mCheckedItemCount = 0;
}
}
updateOnScreenCheckedViews();
}
/**
* @see #setChoiceMode(int)
*
* @return The current choice mode
*/
public int getChoiceMode() {
return mChoiceMode;
}
/**
* Defines the choice behavior for the List. By default, Lists do not have any choice behavior
* ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the
* List allows up to one item to be in a chosen state. By setting the choiceMode to
* {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen.
*
* @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or
* {@link #CHOICE_MODE_MULTIPLE}
*/
public void setChoiceMode(int choiceMode) {
mChoiceMode = choiceMode;
if (mChoiceActionMode != null) {
mChoiceActionMode.finish();
mChoiceActionMode = null;
}
if (mChoiceMode != CHOICE_MODE_NONE) {
if (mCheckStates == null) {
mCheckStates = new SparseBooleanArray(0);
}
if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) {
mCheckedIdStates = new LongSparseArray<>(0);
}
// Modal multi-choice mode only has choices when the mode is active. Clear them.
if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) {
clearChoices();
setLongClickable(true);
}
}
}
/**
* Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the
* selection {@link android.support.v7.view.ActionMode}. Only used when the choice mode is set to
* {@link #CHOICE_MODE_MULTIPLE_MODAL}.
*
* @param listener Listener that will manage the selection mode
*
* @see #setChoiceMode(int)
*/
public void setMultiChoiceModeListener(MultiChoiceModeListener listener) {
if (mMultiChoiceModeCallback == null) {
mMultiChoiceModeCallback = new MultiChoiceModeWrapper();
}
mMultiChoiceModeCallback.setWrapped(listener);
}
/**
* Perform a quick, in-place update of the checked or activated state
* on all visible item views. This should only be called when a valid
* choice mode is active.
*/
private void updateOnScreenCheckedViews() {
final int count = getChildCount();
for (int i = 0; i < count; i++) {
final View child = getChildAt(i);
final int position = getChildAdapterPosition(child);
setViewChecked(child, mCheckStates.get(position));
}
}
public static void setViewChecked(View view, boolean checked) {
final boolean useActivated = Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB;
if (view instanceof Checkable) {
((Checkable) view).setChecked(checked);
} else if (useActivated) {
view.setActivated(checked);
}
}
public float getTouchStartX() {
return mStartX;
}
public float getTouchStartY() {
return mStartY;
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
if (!isEnabled()) {
// A disabled view that is clickable still consumes the touch
// events, it just doesn't respond to them.
return isClickable() || isLongClickable();
}
switch (ev.getActionMasked()) {
case MotionEvent.ACTION_DOWN: {
onTouchDown(ev);
break;
}
case MotionEvent.ACTION_MOVE: {
onTouchMove(ev);
break;
}
case MotionEvent.ACTION_UP: {
onTouchUp(ev);
break;
}
case MotionEvent.ACTION_CANCEL: {
onTouchCancel();
break;
}
}
super.onTouchEvent(ev);
return true;
}
private void onTouchDown(MotionEvent ev) {
final float x = ev.getX();
final float y = ev.getY();
mStartX = x;
mStartY = y;
mMotionView = findChildViewUnder(x, y);
mMotionPosition = getChildAdapterPosition(mMotionView);
if (mMotionView != null && mMotionPosition >= 0) {
mHasPerformedLongPress = false;
mPrePressed = true;
if (mPendingCheckForTap == null) {
mPendingCheckForTap = new CheckForTap();
}
mPendingCheckForTap.x = x;
mPendingCheckForTap.y = y;
mPendingCheckForTap.v = mMotionView;
mPendingCheckForTap.p = mMotionPosition;
postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout());
} else {
mMotionView = null;
}
}
private void onTouchMove(MotionEvent ev) {
if (mTouchSlop == -1) {
mTouchSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
}
if (mMotionView != null && mMotionPosition >= 0 &&
!MathUtils.near(mStartX, mStartY, ev.getX(), ev.getY(), mTouchSlop)) {
removeTapCallback();
if (mMotionView.isPressed()) {
// Remove any future long press/tap checks
removeLongPressCallback();
mMotionView.setPressed(false);
setPressed(false);
}
updateSelectorState();
cancelDrawingSelector();
}
}
private void onTouchUp(MotionEvent ev) {
View motionView = mMotionView;
int motionPosition = mMotionPosition;
if (motionView != null && motionPosition >= 0) {
final float x = ev.getX();
final float y = ev.getY();
if (motionView.isPressed() || mPrePressed) {
// The button is being released before we actually
// showed it as pressed. Make it show the pressed
// state now (before scheduling the click) to ensure
// the user sees it.
final float[] point = mTmpPoint;
point[0] = x;
point[1] = y;
ViewUtils.transformPointToViewLocal(point, EasyRecyclerView.this, motionView);
setPressed(motionView, true, point[0], point[1]);
setPressed(true);
positionSelector(mMotionPosition, motionView);
if (mSelector != null) {
Drawable d = mSelector.getCurrent();
if (d != null && d instanceof TransitionDrawable) {
((TransitionDrawable) d).resetTransition();
}
DrawableUtils.setHotspot(mSelector, x, y);
}
if (!mHasPerformedLongPress) {
// This is a tap, so remove the longpress check
removeLongPressCallback();
// Use a Runnable and post this rather than calling
// performClick directly. This lets other visual state
// of the view update before click actions start.
if (mPerformClick == null) {
mPerformClick = new PerformClick();
}
mPerformClick.v = motionView;
mPerformClick.p = motionPosition;
mPerformClick.rememberWindowAttachCount();
if (!post(mPerformClick)) {
mPerformClick.run();
}
}
if (mUnsetPressedState == null) {
mUnsetPressedState = new UnsetPressedState();
}
mUnsetPressedState.v = motionView;
if (mPrePressed) {
postDelayed(mUnsetPressedState, ViewConfiguration.getPressedStateDuration());
} else if (!post(mUnsetPressedState)) {
// If the post failed, unpress right now
mUnsetPressedState.run();
}
removeTapCallback();
}
updateSelectorState();
// Release
mMotionView = null;
}
}
private void onTouchCancel() {
if (mMotionView != null && mMotionPosition >= 0) {
mMotionView.setPressed(false);
setPressed(false);
removeTapCallback();
removeLongPressCallback();
// Release motion view
mMotionView = null;
}
}
private void removeTapCallback() {
if (mPendingCheckForTap != null) {
mPrePressed = false;
removeCallbacks(mPendingCheckForTap);
mPendingCheckForTap.v = null;
}
}
private void removeLongPressCallback() {
if (mPendingCheckForLongPress != null) {
removeCallbacks(mPendingCheckForLongPress);
mPendingCheckForLongPress.v = null;
}
}
private void setPressed(View v, boolean pressed, float x, float y){
v.setPressed(pressed);
if (pressed && Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
v.drawableHotspotChanged(x, y);
}
}
private boolean performItemClick(View view, int position, long id) {
boolean handled = false;
boolean dispatchItemClick = true;
if (mChoiceMode != CHOICE_MODE_NONE) {
handled = true;
boolean checkedStateChanged = false;
if (mChoiceMode == CHOICE_MODE_MULTIPLE ||
(mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) {
boolean checked = !mCheckStates.get(position, false);
mCheckStates.put(position, checked);
if (mCheckedIdStates != null && mAdapter.hasStableIds()) {
if (checked) {
mCheckedIdStates.put(mAdapter.getItemId(position), position);
} else {
mCheckedIdStates.delete(mAdapter.getItemId(position));
}
}
if (checked) {
mCheckedItemCount++;
} else {
mCheckedItemCount--;
}
if (mChoiceActionMode != null) {
mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode,
position, id, checked);
dispatchItemClick = false;
}
checkedStateChanged = true;
} else if (mChoiceMode == CHOICE_MODE_SINGLE) {
boolean checked = !mCheckStates.get(position, false);
if (checked) {
mCheckStates.clear();
mCheckStates.put(position, true);
if (mCheckedIdStates != null && mAdapter.hasStableIds()) {
mCheckedIdStates.clear();
mCheckedIdStates.put(mAdapter.getItemId(position), position);
}
mCheckedItemCount = 1;
} else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) {
mCheckedItemCount = 0;
}
checkedStateChanged = true;
}
if (checkedStateChanged) {
updateOnScreenCheckedViews();
}
}
if (dispatchItemClick) {
if (mOnItemClickListener != null) {
playSoundEffect(SoundEffectConstants.CLICK);
mOnItemClickListener.onItemClick(this, view, position, id);
if (view != null) {
view.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED);
}
handled = true;
}
}
return handled;
}
private boolean performItemLongPress(final View child,
final int longPressPosition, final long longPressId) {
// CHOICE_MODE_MULTIPLE_MODAL takes over long press.
if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) {
if (mChoiceActionMode == null &&
(mChoiceActionMode = mActionBarActivity.startSupportActionMode(mMultiChoiceModeCallback)) != null) {
setItemChecked(longPressPosition, true);
performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
}
return true;
}
boolean handled = false;
if (mOnItemLongClickListener != null) {
handled = mOnItemLongClickListener.onItemLongClick(this, child,
longPressPosition, longPressId);
}
if (handled) {
performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
}
return handled;
}
/**
* Register a callback to be invoked when an item in this AdapterView has
* been clicked.
*
* @param listener The callback that will be invoked.
*/
public void setOnItemClickListener(OnItemClickListener listener) {
mOnItemClickListener = listener;
}
public void setOnItemLongClickListener(OnItemLongClickListener listener) {
if (!isLongClickable()) {
setLongClickable(true);
}
mOnItemLongClickListener = listener;
}
/**
* If choice mode is set, call it in {@link Adapter#onBindViewHolder}
*/
public void checkItemCheckedState(View view, int position) {
setViewChecked(view, isItemChecked(position));
}
static class SavedState extends BaseSavedState {
int choiceMode;
int checkedItemCount;
SparseBooleanArray checkState;
LongSparseArray<Integer> checkIdState;
/**
* Constructor called from {@link #onSaveInstanceState()}
*/
SavedState(Parcelable superState) {
super(superState);
}
/**
* Constructor called from {@link #CREATOR}
*/
private SavedState(Parcel in) {
super(in);
choiceMode = in.readInt();
checkedItemCount = in.readInt();
checkState = in.readSparseBooleanArray();
final int N = in.readInt();
if (N > 0) {
checkIdState = new LongSparseArray<>();
for (int i=0; i<N; i++) {
final long key = in.readLong();
final int value = in.readInt();
checkIdState.put(key, value);
}
}
}
@Override
public void writeToParcel(@NonNull Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeInt(choiceMode);
out.writeInt(checkedItemCount);
out.writeSparseBooleanArray(checkState);
final int N = checkIdState != null ? checkIdState.size() : 0;
out.writeInt(N);
for (int i=0; i<N; i++) {
out.writeLong(checkIdState.keyAt(i));
out.writeInt(checkIdState.valueAt(i));
}
}
public static final Parcelable.Creator<SavedState> CREATOR
= new Parcelable.Creator<SavedState>() {
@Override
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
@Override
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
}
@Override
public Parcelable onSaveInstanceState() {
final SavedState ss = new SavedState(super.onSaveInstanceState());
ss.choiceMode = mChoiceMode;
ss.checkedItemCount = mCheckedItemCount;
ss.checkState = mCheckStates;
ss.checkIdState = mCheckedIdStates;
return ss;
}
@Override
public void onRestoreInstanceState(Parcelable state) {
SavedState ss = (SavedState) state;
super.onRestoreInstanceState(ss.getSuperState());
setChoiceMode(ss.choiceMode);
mCheckedItemCount = ss.checkedItemCount;
if (ss.checkState != null) {
mCheckStates = ss.checkState;
}
if (ss.checkIdState != null) {
mCheckedIdStates = ss.checkIdState;
}
if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mCheckedItemCount > 0) {
mChoiceActionMode = mActionBarActivity.startSupportActionMode(mMultiChoiceModeCallback);
}
updateOnScreenCheckedViews();
}
private final class CheckForTap implements Runnable {
float x;
float y;
View v;
int p;
@Override
public void run() {
View view = v;
int position = p;
if (view != null && position >= 0) {
mPrePressed = false;
final float[] point = mTmpPoint;
point[0] = x;
point[1] = y;
ViewUtils.transformPointToViewLocal(point, EasyRecyclerView.this, view);
setPressed(v, true, point[0], point[1]);
setPressed(true);
positionSelector(mMotionPosition, v);
refreshDrawableState();
final int longPressTimeout = ViewConfiguration.getLongPressTimeout();
final boolean longClickable = isLongClickable();
if (mSelector != null) {
final Drawable d = mSelector.getCurrent();
if (d != null && d instanceof TransitionDrawable) {
if (longClickable) {
((TransitionDrawable) d).startTransition(longPressTimeout);
} else {
((TransitionDrawable) d).resetTransition();
}
}
DrawableUtils.setHotspot(mSelector, x, y);
}
if (longClickable) {
mHasPerformedLongPress = false;
if (mPendingCheckForLongPress == null) {
mPendingCheckForLongPress = new CheckForLongPress();
}
mPendingCheckForLongPress.rememberWindowAttachCount();
mPendingCheckForLongPress.v = view;
mPendingCheckForLongPress.p = position;
postDelayed(mPendingCheckForLongPress, longPressTimeout -
ViewConfiguration.getTapTimeout());
}
}
// Release
v = null;
}
}
private class CheckForLongPress extends WindowRunnnable implements Runnable {
View v;
int p;
@Override
public void run() {
View view = v;
int position = p;
if (view != null && position >= 0 && view.isPressed() && view.getParent() != null) {
boolean handled = false;
if (sameWindow()) {
handled = performItemLongPress(view, position, getAdapter().getItemId(position));
}
if (handled) {
mHasPerformedLongPress = true;
view.setPressed(false);
setPressed(false);
}
}
// Release
v = null;
}
}
private final class UnsetPressedState implements Runnable {
View v;
@Override
public void run() {
if (v != null) {
v.setPressed(false);
setPressed(false);
// Release
v = null;
}
}
}
private class PerformClick extends WindowRunnnable implements Runnable {
View v;
int p;
@Override
public void run() {
View view = v;
int position = p;
if (view != null && position >= 0 && sameWindow()) {
performItemClick(view, position, mAdapter.getItemId(position));
}
// Release
v = null;
}
}
/**
* A base class for Runnables that will check that their view is still attached to
* the original window as when the Runnable was created.
*
*/
private class WindowRunnnable {
private int mOriginalAttachCount;
public void rememberWindowAttachCount() {
mOriginalAttachCount = getWindowAttachCount();
}
public boolean sameWindow() {
return getWindowAttachCount() == mOriginalAttachCount;
}
}
/**
* Interface definition for a callback to be invoked when an item in the
* EasyRecyclerView has been clicked.
*/
public interface OnItemClickListener {
/**
* Callback method to be invoked when an item in the EasyRecyclerView
* has been clicked.
*
* @param parent The EasyRecyclerView where the click happened.
* @param view The view within the EasyRecyclerView that was clicked
* @param position The position of the view in the adapter.
* @param id The row id of the item that was clicked.
*
* @return true if the callback consumed the click, false otherwise
*/
boolean onItemClick(EasyRecyclerView parent, View view, int position, long id);
}
/**
* Interface definition for a callback to be invoked when an item in the
* EasyRecyclerView has been clicked and held.
*/
public interface OnItemLongClickListener {
/**
* Callback method to be invoked when an item in the EasyRecyclerView
* has been clicked and held.
*
* @param parent The EasyRecyclerView where the click happened
* @param view The view within the EasyRecyclerView that was clicked
* @param position The position of the view in the list
* @param id The row id of the item that was clicked
*
* @return true if the callback consumed the long click, false otherwise
*/
boolean onItemLongClick(EasyRecyclerView parent, View view, int position, long id);
}
/**
* Interface definition for a callback to be invoked when draw selector.
*/
public interface OnDrawSelectorListener {
/**
* Callback method to be invoked before selector draw.
*
* @param position The EasyRecyclerView where the click happened
* @return true if need draw selector, false otherwise
*/
boolean beforeDrawSelector(int position);
}
/**
* A MultiChoiceModeListener receives events for {@link android.widget.AbsListView#CHOICE_MODE_MULTIPLE_MODAL}.
* It acts as the {@link android.support.v7.view.ActionMode.Callback} for the selection mode and also receives
* {@link #onItemCheckedStateChanged(android.support.v7.view.ActionMode, int, long, boolean)} events when the user
* selects and deselects list items.
*/
public interface MultiChoiceModeListener extends ActionMode.Callback {
/**
* Called when an item is checked or unchecked during selection mode.
*
* @param mode The {@link android.support.v7.view.ActionMode} providing the selection mode
* @param position Adapter position of the item that was checked or unchecked
* @param id Adapter ID of the item that was checked or unchecked
* @param checked <code>true</code> if the item is now checked, <code>false</code>
* if the item is now unchecked.
*/
void onItemCheckedStateChanged(ActionMode mode,
int position, long id, boolean checked);
}
class MultiChoiceModeWrapper implements MultiChoiceModeListener {
private MultiChoiceModeListener mWrapped;
public void setWrapped(MultiChoiceModeListener wrapped) {
mWrapped = wrapped;
}
public boolean hasWrappedCallback() {
return mWrapped != null;
}
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
if (mWrapped.onCreateActionMode(mode, menu)) {
// Initialize checked graphic state?
setLongClickable(false);
return true;
}
return false;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return mWrapped.onPrepareActionMode(mode, menu);
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
return mWrapped.onActionItemClicked(mode, item);
}
@Override
public void onDestroyActionMode(ActionMode mode) {
mWrapped.onDestroyActionMode(mode);
mChoiceActionMode = null;
// Ending selection mode means deselecting everything.
clearChoices();
requestLayout();
setLongClickable(true);
}
@Override
public void onItemCheckedStateChanged(ActionMode mode,
int position, long id, boolean checked) {
mWrapped.onItemCheckedStateChanged(mode, position, id, checked);
// If there are no items selected we no longer need the selection mode.
if (getCheckedItemCount() == 0) {
mode.finish();
}
}
}
}