Android P编辑联系人照片会显示之前默认图片的图层

先查找到显示联系人的界面Activity为

adb shell "dumpsys window|grep mCurrentFocus
mCurrentFocus=Window{afeec10 u0 com.android.contacts/com.android.contacts.quickcontact.QuickContactActivity}

故可以知道该界面为：QuickContactActivity.java

根据布局可以很快找到对应的PhotoView属性

mPhotoView = (QuickContactImageView) findViewById(R.id.photo);final View transparentView = findViewById(R.id.transparent_view);if (mScroller != null) {transparentView.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {mScroller.scrollOffBottom();}});}

进而判断出该图片是在QuickContactImageView.java 中编辑的，该函数比较简短：

public void setTint(int color) {if (mBitmapDrawable == null || mBitmapDrawable.getBitmap() == null|| mBitmapDrawable.getBitmap().hasAlpha()) {setBackgroundColor(color);} else {setBackground(null);}mTintColor = color;postInvalidate();}public boolean isBasedOffLetterTile() {return mOriginalDrawable instanceof LetterTileDrawable;}public void setIsBusiness(boolean isBusiness) {mIsBusiness = isBusiness;}@Overridepublic void setImageDrawable(Drawable drawable) {// There is no way to avoid all this casting. Blending modes aren't equally// supported for all drawable types.final BitmapDrawable bitmapDrawable;if (drawable == null || drawable instanceof BitmapDrawable) {bitmapDrawable = (BitmapDrawable) drawable;} else if (drawable instanceof LetterTileDrawable) {if (!mIsBusiness) {bitmapDrawable = (BitmapDrawable) getResources().getDrawable(R.drawable.person_white_540dp);} else {bitmapDrawable = (BitmapDrawable) getResources().getDrawable(R.drawable.generic_business_white_540dp);}} else {throw new IllegalArgumentException("Does not support this type of drawable");}mOriginalDrawable = drawable;mBitmapDrawable = bitmapDrawable;setTint(mTintColor);super.setImageDrawable(bitmapDrawable);}

根据问题描述主要是：Color相关的问题。故我们查找Color相关的函数，细化一些则为：

public void setTint(int color) {if (mBitmapDrawable == null || mBitmapDrawable.getBitmap() == null|| mBitmapDrawable.getBitmap().hasAlpha()) {setBackgroundColor(color);} else {setBackground(null);}mTintColor = color;postInvalidate();}

在仔细观察颜色变化主要是在点击编辑保存后的变化。故我们需要进一步跟踪

adb shell "dumpsys window|grep mCurrentFocusmCurrentFocus=Window{7362203 u0 com.android.contacts/com.android.contacts.activities.ContactEditorActivity}

找到ContactEditorActivity.java文件中的保存按钮事件，对应可以查看到ContactEditorFragment.java文件

    protected boolean doSaveAction(int saveMode, Long joinContactId) {final Intent intent = ContactSaveService.createSaveContactIntent(mContext, mState,SAVE_MODE_EXTRA_KEY, saveMode, isEditingUserProfile(),((Activity) mContext).getClass(),ContactEditorActivity.ACTION_SAVE_COMPLETED, mUpdatedPhotos,JOIN_CONTACT_ID_EXTRA_KEY, joinContactId);return startSaveService(mContext, intent, saveMode);}

在QuickContactActivity.java文件中，有对于PhotoView 的设置

 /*** Asynchronously extract the most vibrant color from the PhotoView. Once extracted,* apply this tint to {@link MultiShrinkScroller}. This operation takes about 20-30ms* on a Nexus 5.*/private void extractAndApplyTintFromPhotoViewAsynchronously() {if (mScroller == null) {return;}final Drawable imageViewDrawable = mPhotoView.getDrawable();new AsyncTask<Void, Void, MaterialPalette>() {@Overrideprotected MaterialPalette doInBackground(Void... params) {if (imageViewDrawable instanceof BitmapDrawable && mContactData != null&& mContactData.getThumbnailPhotoBinaryData() != null&& mContactData.getThumbnailPhotoBinaryData().length > 0) {// Perform the color analysis on the thumbnail instead of the full sized// image, so that our results will be as similar as possible to the Bugle// app.final Bitmap bitmap = BitmapFactory.decodeByteArray(mContactData.getThumbnailPhotoBinaryData(), 0,mContactData.getThumbnailPhotoBinaryData().length);try {final int primaryColor = 0;//colorFromBitmap(bitmap);Log.d(TAG, "doInBackground: primaryColor = " + primaryColor);if (primaryColor != 0) {return mMaterialColorMapUtils.calculatePrimaryAndSecondaryColor(primaryColor);}} finally {bitmap.recycle();}}if (imageViewDrawable instanceof LetterTileDrawable) {final int primaryColor = ((LetterTileDrawable) imageViewDrawable).getColor();Log.d(TAG, "LetterTileDrawable doInBackground: primaryColor = " + primaryColor);return mMaterialColorMapUtils.calculatePrimaryAndSecondaryColor(primaryColor);}Log.d(TAG, "doInBackground: MaterialColorMapUtils.getDefaultPrimaryAndSecondaryColors");return MaterialColorMapUtils.getDefaultPrimaryAndSecondaryColors(getResources());}@Overrideprotected void onPostExecute(MaterialPalette palette) {super.onPostExecute(palette);Log.d(TAG, "onPostExecute: mHasComputedThemeColor = " + mHasComputedThemeColor + " , imageViewDrawable = " + imageViewDrawable);if (mHasComputedThemeColor) {// If we had previously computed a theme color from the contact photo,// then do not update the theme color. Changing the theme color several// seconds after QC has started, as a result of an updated/upgraded photo,// is a jarring experience. On the other hand, changing the theme color after// a rotation or onNewIntent() is perfectly fine.return;}// Check that the Photo has not changed. If it has changed, the new tint// color needs to be extractedif (imageViewDrawable == mPhotoView.getDrawable()) {mHasComputedThemeColor = true;setThemeColor(palette);}}}.execute();}private void setThemeColor(MaterialPalette palette) {// If the color is invalid, use the predefined defaultmColorFilterColor = palette.mPrimaryColor;Log.d(TAG, "setThemeColor: mColorFilterColor = " + mColorFilterColor);mScroller.setHeaderTintColor(mColorFilterColor);mStatusBarColor = palette.mSecondaryColor;updateStatusBarColor();mColorFilter =new PorterDuffColorFilter(mColorFilterColor, PorterDuff.Mode.SRC_ATOP);mContactCard.setColorAndFilter(mColorFilterColor, mColorFilter);mRecentCard.setColorAndFilter(mColorFilterColor, mColorFilter);mAboutCard.setColorAndFilter(mColorFilterColor, mColorFilter);}

抓取log信息知道；当设置图片时候，该函数执行到了mHasComputedThemeColor = true；
跟进一步：

public void setHeaderTintColor(int color) {mHeaderTintColor = color;updatePhotoTintAndDropShadow();if (CompatUtils.isLollipopCompatible()) {// Use the same amount of alpha on the new tint color as the previous tint color.final int edgeEffectAlpha = Color.alpha(mEdgeGlowBottom.getColor());mEdgeGlowBottom.setColor((color & 0xffffff) | Color.argb(edgeEffectAlpha, 0, 0, 0));mEdgeGlowTop.setColor(mEdgeGlowBottom.getColor());}}

继续抓取log查看到对Tint Color或者其他颜色的设置处， MultiShrinkScroller.java

private void updatePhotoTintAndDropShadow() {// Let's keep an eye on how long this method takes to complete.Trace.beginSection("updatePhotoTintAndDropShadow");// Tell the photo view what tint we are trying to achieve. Depending on the type of// drawable used, the photo view may or may not use this tint.mPhotoView.setTint(mHeaderTintColor);if (mIsTwoPanel && !mPhotoView.isBasedOffLetterTile()) {// When in two panel mode, UX considers photo tinting unnecessary for non letter// tile photos.//此处即是表示清除Filter层的函数**mPhotoView.clearColorFilter();**mTitleGradientDrawable.setAlpha(0xFF);mActionBarGradientDrawable.setAlpha(0xFF);return;}

此时即可将FIlter的颜色去除。

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