编程添加SurfaceView到的FrameLayout这是Z-命令下的ImageView [英] programmatically adding SurfaceView to a FrameLayout which is Z-ordered under ImageView
问题描述
编辑2A：随意跳到底部简洁问题
EDIT 2a: feel free to jump to the bottom for succinct questions.
我可以通过XML 绘制SurfaceView。就我而言，我创建一个电子图书这将对SurfaceViews运行本书的每一页不同的动画。
I can Draw a SurfaceView via xml. In my case, I am creating an e-book which will have different animations running on SurfaceViews for each page of the book.
我有，有一个的FrameLayout 名为 @ + A 。的.xml 布局ID / animation_layout
I've got a .xml layout that has a FrameLayout called @+id/animation_layout.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<fi.harism.curl.CurlView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/curl"
>
</fi.harism.curl.CurlView>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/animation_layout"
/>
<include layout="@layout/narration"
/>
</RelativeLayout>
根据正在显示它的书页，我想在我的一套延伸 SurfaceView 类添加的一个类的不同实例。
Depending on which page of the book is being displayed, I would like to add a different instance of one of the classes in my set of classes which extend SurfaceView.
Page01SurfaceView extends PageAniSurfaceView {
//
// code here includes onDraw() definition
//
}
Page02SurfaceView extends PageAniSurfaceView {
//
// code here includes onDraw() definition
//
}
PageAniSurfaceView时，它的实例化和关闭时会创建其观点，即线程踢基本上创建一个线程。
PageAniSurfaceView basically creates a Thread when it's instantiated and kicks off that thread when its View is created.
public class PageAniSurfaceView extends SurfaceView implements SurfaceHolder.Callback {
private final String TAG = this.getClass().getSimpleName();
private TutorialThread _thread;
public PageAniSurfaceView(Context context) {
super(context);
init();
}
public PageAniSurfaceView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public void setBackground(int bg_id)
{
// adding the callback (this) to the surface holder to intercept events
getHolder().addCallback(this);
// make the PageAniSurfaceView focusable so it can handle events
setFocusable(true);
}
protected void init()
{
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
_thread = new TutorialThread(getHolder(), this);
_thread.setRunning(true);
_thread.start();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
boolean retry = true;
_thread.setRunning(false);
while (retry) {
try {
_thread.join();
retry = false;
} catch (InterruptedException e) {
// we will try it again and again...
}
}
}
protected void draw_bitmaps(Canvas canvas)
{
// will be overridden by child classes
}
@Override
protected void onDraw(Canvas canvas) {
if(this.getVisibility() == View.VISIBLE)
{
if(canvas != null)
{
draw_bitmaps(canvas);
}
}
}
public void update_bitmaps()
{
// will be overridden by child classes
}
public void elementStarted(PageElement _pageElement) {
// Nothing in parent class
}
public void elementFinished(PageElement mElement) {
// Nothing in parent class
}
}
我有一个名为 PageDisplayer 类跟踪我们哪个网页上，并应 addView（）具体SurfaceView类我需要包括该页面。
I have a class called PageDisplayer which keeps track of which page we're on, and should addView() the specific SurfaceView class I need to include for that page.
public void displayPage()
{
page = sSystemRegistry.pageSystem.getCurrentPage();
mBookReader.mAnimationLayout.removeAllViews();
PageAniSurfaceView _ani = null;
switch(page.index)
{
case 1:
_ani = new Page01SurfaceView(mBookReader);
break;
case 2:
_ani = new Page02SurfaceView(mBookReader);
break;
case 3:
_ani = new Page03SurfaceView(mBookReader);
break;
}
if(_ani != null)
{
_ani.setWillNotDraw(false);
// mBookReader.mAnimationLayout is a FrameLayout in my .xml
mBookReader.mAnimationLayout.addView(_ani);
mElementDisplayer.setElementListener(_ani);
}
}
通过断点或LogCat中，我可以告诉正在运行的线程，并且onDraws正在调用。在例如定义和显示的位图，Page01SurfaceView绘制一次，但是当update_bitmaps（）改变第（x，y）坐标的位图的不重画。
Via breakpoints OR LogCat, I can tell the Threads are running, and the onDraws are being called. The bitmaps defined and displayed in e.g., Page01SurfaceView are drawn once, but not redrawn when update_bitmaps() changes the (x,y) coordinates of the bitmap.
为什么位图不被绘制在每次调用的onDraw（Canvas）的
Why are the bitmaps not being drawn on each call to onDraw(Canvas)?
编辑：如果有在视图中的以上的动画的位图，然后显示在SurfaceView位图
edit: if there's an animation in a View above the bitmaps, then the bitmaps on the SurfaceView are displayed.
编辑2：简洁的问题：
请问一个的ImageView Z-有序以上 SurfaceView 保存 SurfaceView 从图纸本身？
Will an ImageView Z-ordered above a SurfaceView keep the SurfaceView from drawing itself?
如果我只是使用一个<一个href=\"http://groups.google.com/group/android-developers/browse_thread/thread/d754f034c96c6293/5705e8e63a28dc4e?show_docid=5705e8e63a28dc4e&fwc=1&pli=1\"相对=nofollow>视图，而不是一个 SurfaceView ？我要去尝试，并汇报。
Should I just be using a View and not a SurfaceView? I'm going to try that and report back.
推荐答案
我只是用一个视图，而不是SurfaceView。
I'm just using a View, not a SurfaceView.
戴安娜Hackborn说，表面意见是非常特殊的，而不是真正的意见（表面上是一个独立的窗口Z-下令用自己的），它们的Z排序不符合您的观点。从表面上看是一个大的，重的物体;你并不旨在治疗SurfaceView像这样一个常规视图
Dianne Hackborn said "surface views are very special and not really views (the surface is a separate window Z-ordered with your own), their Z-ordering does not match your views. A surface view is a big, heavy object; you are not intended to treat SurfaceView like a regular view in this way."
https://groups.google.com/d/topic/
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