version:1.5
fix:迁移到奥乐云平台 add:
This commit is contained in:
246
src/com/aoleyun/os/widget/WidgetCell.java
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246
src/com/aoleyun/os/widget/WidgetCell.java
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/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.aoleyun.os.widget;
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import android.content.Context;
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import android.graphics.Bitmap;
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import android.os.CancellationSignal;
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import android.util.AttributeSet;
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import android.util.Log;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.View.OnLayoutChangeListener;
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import android.view.ViewGroup;
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import android.view.ViewPropertyAnimator;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import com.aoleyun.os.BaseActivity;
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import com.aoleyun.os.DeviceProfile;
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import com.aoleyun.os.R;
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import com.aoleyun.os.SimpleOnStylusPressListener;
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import com.aoleyun.os.StylusEventHelper;
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import com.aoleyun.os.WidgetPreviewLoader;
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import com.aoleyun.os.graphics.DrawableFactory;
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import com.aoleyun.os.model.WidgetItem;
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/**
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* Represents the individual cell of the widget inside the widget tray. The preview is drawn
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* horizontally centered, and scaled down if needed.
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*
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* This view does not support padding. Since the image is scaled down to fit the view, padding will
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* further decrease the scaling factor. Drag-n-drop uses the view bounds for showing a smooth
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* transition from the view to drag view, so when adding padding support, DnD would need to
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* consider the appropriate scaling factor.
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*/
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public class WidgetCell extends LinearLayout implements OnLayoutChangeListener {
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private static final String TAG = "WidgetCell";
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private static final boolean DEBUG = false;
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private static final int FADE_IN_DURATION_MS = 90;
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/** Widget cell width is calculated by multiplying this factor to grid cell width. */
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private static final float WIDTH_SCALE = 2.6f;
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/** Widget preview width is calculated by multiplying this factor to the widget cell width. */
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private static final float PREVIEW_SCALE = 0.8f;
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protected int mPresetPreviewSize;
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private int mCellSize;
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private WidgetImageView mWidgetImage;
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private TextView mWidgetName;
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private TextView mWidgetDims;
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protected WidgetItem mItem;
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private WidgetPreviewLoader mWidgetPreviewLoader;
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private StylusEventHelper mStylusEventHelper;
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protected CancellationSignal mActiveRequest;
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private boolean mAnimatePreview = true;
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private boolean mApplyBitmapDeferred = false;
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private Bitmap mDeferredBitmap;
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protected final BaseActivity mActivity;
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public WidgetCell(Context context) {
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this(context, null);
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}
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public WidgetCell(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public WidgetCell(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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mActivity = BaseActivity.fromContext(context);
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mStylusEventHelper = new StylusEventHelper(new SimpleOnStylusPressListener(this), this);
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setContainerWidth();
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setWillNotDraw(false);
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setClipToPadding(false);
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setAccessibilityDelegate(mActivity.getAccessibilityDelegate());
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}
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private void setContainerWidth() {
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DeviceProfile profile = mActivity.getDeviceProfile();
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mCellSize = (int) (profile.cellWidthPx * WIDTH_SCALE);
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mPresetPreviewSize = (int) (mCellSize * PREVIEW_SCALE);
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}
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@Override
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protected void onFinishInflate() {
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super.onFinishInflate();
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mWidgetImage = (WidgetImageView) findViewById(R.id.widget_preview);
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mWidgetName = ((TextView) findViewById(R.id.widget_name));
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mWidgetDims = ((TextView) findViewById(R.id.widget_dims));
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}
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/**
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* Called to clear the view and free attached resources. (e.g., {@link Bitmap}
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*/
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public void clear() {
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if (DEBUG) {
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Log.d(TAG, "reset called on:" + mWidgetName.getText());
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}
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mWidgetImage.animate().cancel();
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mWidgetImage.setBitmap(null, null);
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mWidgetName.setText(null);
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mWidgetDims.setText(null);
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if (mActiveRequest != null) {
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mActiveRequest.cancel();
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mActiveRequest = null;
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}
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}
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public void applyFromCellItem(WidgetItem item, WidgetPreviewLoader loader) {
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mItem = item;
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mWidgetName.setText(mItem.label);
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mWidgetDims.setText(getContext().getString(R.string.widget_dims_format,
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mItem.spanX, mItem.spanY));
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mWidgetDims.setContentDescription(getContext().getString(
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R.string.widget_accessible_dims_format, mItem.spanX, mItem.spanY));
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mWidgetPreviewLoader = loader;
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if (item.activityInfo != null) {
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setTag(new PendingAddShortcutInfo(item.activityInfo));
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} else {
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setTag(new PendingAddWidgetInfo(item.widgetInfo));
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}
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}
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public WidgetImageView getWidgetView() {
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return mWidgetImage;
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}
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/**
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* Sets if applying bitmap preview should be deferred. The UI will still load the bitmap, but
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* will not cause invalidate, so that when deferring is disabled later, all the bitmaps are
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* ready.
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* This prevents invalidates while the animation is running.
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*/
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public void setApplyBitmapDeferred(boolean isDeferred) {
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if (mApplyBitmapDeferred != isDeferred) {
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mApplyBitmapDeferred = isDeferred;
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if (!mApplyBitmapDeferred && mDeferredBitmap != null) {
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applyPreview(mDeferredBitmap);
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mDeferredBitmap = null;
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}
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}
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}
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public void setAnimatePreview(boolean shouldAnimate) {
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mAnimatePreview = shouldAnimate;
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}
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public void applyPreview(Bitmap bitmap) {
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if (mApplyBitmapDeferred) {
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mDeferredBitmap = bitmap;
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return;
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}
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if (bitmap != null) {
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mWidgetImage.setBitmap(bitmap, DrawableFactory.INSTANCE.get(getContext())
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.getBadgeForUser(mItem.user, getContext()));
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if (mAnimatePreview) {
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mWidgetImage.setAlpha(0f);
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ViewPropertyAnimator anim = mWidgetImage.animate();
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anim.alpha(1.0f).setDuration(FADE_IN_DURATION_MS);
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} else {
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mWidgetImage.setAlpha(1f);
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}
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}
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}
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public void ensurePreview() {
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if (mActiveRequest != null) {
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return;
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}
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mActiveRequest = mWidgetPreviewLoader.getPreview(
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mItem, mPresetPreviewSize, mPresetPreviewSize, this);
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}
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@Override
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public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft,
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int oldTop, int oldRight, int oldBottom) {
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removeOnLayoutChangeListener(this);
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ensurePreview();
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}
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@Override
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public boolean onTouchEvent(MotionEvent ev) {
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boolean handled = super.onTouchEvent(ev);
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if (mStylusEventHelper.onMotionEvent(ev)) {
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return true;
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}
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return handled;
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}
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/**
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* Helper method to get the string info of the tag.
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*/
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private String getTagToString() {
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if (getTag() instanceof PendingAddWidgetInfo ||
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getTag() instanceof PendingAddShortcutInfo) {
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return getTag().toString();
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}
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return "";
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}
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@Override
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public void setLayoutParams(ViewGroup.LayoutParams params) {
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params.width = params.height = mCellSize;
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super.setLayoutParams(params);
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}
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@Override
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public CharSequence getAccessibilityClassName() {
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return WidgetCell.class.getName();
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}
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@Override
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public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
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super.onInitializeAccessibilityNodeInfo(info);
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info.removeAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_CLICK);
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}
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}
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