Android修改webview选中时的高亮颜色
2013 年 4 月 10 日 Android修改webview选中时的高亮颜色无评论
安卓的webview链接点击后文字会被高亮，这个颜色的修改并没有提供接口。需要处理的文件为frameworks/base/core/java/android/webkit/WebViewClassic.java，其中的setTouchHighlightRects()方法就是颜色显示的实现。通过修改其中的mTouchHightlightPaint.setColor(hit.mTapHighlightColor)可以直接修改颜色，修改后所有的触摸高亮颜色会改变。具体代码如下：
private void setTouchHighlightRects(WebKitHitTest hit) {
FocusTransitionDrawable transition = null;
if (shouldAnimateTo(hit)) {
transition = new FocusTransitionDrawable(this);
}
Rect[] rects = hit != null ? hit.mTouchRects : null;
if (!mTouchHighlightRegion.isEmpty()) {
mWebView.invalidate(mTouchHighlightRegion.getBounds());
if (transition != null) {
transition.mPreviousRegion = new Region(mTouchHighlightRegion);
}
mTouchHighlightRegion.setEmpty();
}
if (rects != null) {
mTouchHightlightPaint.setColor(hit.mTapHighlightColor);
for (Rect rect : rects) {
Rect viewRect = contentToViewRect(rect);
// some sites, like stories in nytimes.com, set
// mouse event handler in the top div. It is not
// user friendly to highlight the div if it covers
// more than half of the screen.
if (viewRect.width() < getWidth() >> 1
|| viewRect.height() < getHeight() >> 1) {
mTouchHighlightRegion.union(viewRect);
} else if (DebugFlags.WEB_VIEW) {
Log.d(LOGTAG, "Skip the huge selection rect:"
+ viewRect);
}
}
mWebView.invalidate(mTouchHighlightRegion.getBounds());
if (transition != null && transition.mPreviousRegion != null) {
transition.mNewRegion = new Region(mTouchHighlightRegion);
mFocusTransition = transition;
ObjectAnimator animator = ObjectAnimator.ofFloat(
mFocusTransition, "progress", 1f);
animator.start();
}
}
}
FocusTransitionDrawable transition = null;
if (shouldAnimateTo(hit)) {
transition = new FocusTransitionDrawable(this);
}
Rect[] rects = hit != null ? hit.mTouchRects : null;
if (!mTouchHighlightRegion.isEmpty()) {
mWebView.invalidate(mTouchHighlightRegion.getBounds());
if (transition != null) {
transition.mPreviousRegion = new Region(mTouchHighlightRegion);
}
mTouchHighlightRegion.setEmpty();
}
if (rects != null) {
mTouchHightlightPaint.setColor(hit.mTapHighlightColor);
for (Rect rect : rects) {
Rect viewRect = contentToViewRect(rect);
// some sites, like stories in nytimes.com, set
// mouse event handler in the top div. It is not
// user friendly to highlight the div if it covers
// more than half of the screen.
if (viewRect.width() < getWidth() >> 1
|| viewRect.height() < getHeight() >> 1) {
mTouchHighlightRegion.union(viewRect);
} else if (DebugFlags.WEB_VIEW) {
Log.d(LOGTAG, "Skip the huge selection rect:"
+ viewRect);
}
}
mWebView.invalidate(mTouchHighlightRegion.getBounds());
if (transition != null && transition.mPreviousRegion != null) {
transition.mNewRegion = new Region(mTouchHighlightRegion);
mFocusTransition = transition;
ObjectAnimator animator = ObjectAnimator.ofFloat(
mFocusTransition, "progress", 1f);
animator.start();
}
}
}
发表评论