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我寫了一個簡單的遊戲,結構如下。主要的xml佈局有用戶查看:簡單的遊戲bug
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/menuRL"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<com.sokolovlev.UFOtest03.MenuView
android:id="@+id/menuView"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</RelativeLayout>
這個視圖有兩個文件。首先是用戶MenuView:
package com.sokolovlev.UFOtest03;
import android.content.Context;
import android.util.AttributeSet;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
public class MenuView extends SurfaceView implements SurfaceHolder.Callback
{
private SurfaceHolder mSurfaceHolder; //Draw surface
public static MenuManager mMenuManager; //Draw manager
public MenuView(Context context, AttributeSet attrs)
{
super(context, attrs);
// Surface events registration
mSurfaceHolder = getHolder();
mSurfaceHolder.addCallback(this);
mMenuManager = new MenuManager(mSurfaceHolder, context);
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height)
{
mMenuManager.initPositions(height, width);
}
@SuppressWarnings("static-access")
@Override
public void surfaceCreated(SurfaceHolder holder)
{
mMenuManager.setRunning(true);
try
{
mMenuManager.start();
}
catch (Exception e) { }
}
@SuppressWarnings("static-access")
@Override
public void surfaceDestroyed(SurfaceHolder holder)
{
boolean retry = true;
mMenuManager.setRunning(false);
while (retry)
{
try
{
mMenuManager.join();
retry = false;
}
catch (InterruptedException e) { }
}
}
}
而第二個文件是這場平局經理:
package com.sokolovlev.UFOtest03;
import ...
public class MenuManager extends Thread
{
private SurfaceHolder mSurfaceHolder;
private static boolean mRunning;
private int _screenHeight;
private int _screenWidth;
private ...
Context c;
private ...
public MenuManager(SurfaceHolder surfaceHolder, Context context)
{
mSurfaceHolder = surfaceHolder;
mRunning = false;
c = context;
...
}
public static void setRunning(boolean running)
{
mRunning = running;
}
@Override
public void run()
{
while (mRunning)
{
Canvas canvas = null;
try
{
// подготовка Canvas-а
canvas = mSurfaceHolder.lockCanvas();
canvas.drawRGB(0, 0, 0);
synchronized (mSurfaceHolder)
{
//All drawing
}
}
catch (Exception e) { }
finally
{
if (canvas != null)
{
mSurfaceHolder.unlockCanvasAndPost(canvas);
}
}
}
}
}
一切正常! (步驟№1)但是如果我按中央按鈕,或者我有來電,或者我打電話給任務管理器(步驟№2)並回到我的應用程序 - 我沒有我的繪圖,只有黑屏(步驟№3) 。但是如果我在步驟2旁邊,然後在我的應用程序中,我發現一切正常。
我不明白,哪裏有重裝對我的圖紙有影響?請幫助!
也許你可以嘗試什麼建議在接受的答案http://stackoverflow.com/questions/3527621/how-to-pause-and-resume-a-surfaceview-thread – Michael 2012-07-27 17:39:54
哦,我只能像LunarLander那樣保存我的表面狀態。 TNX! – Leo 2012-07-28 08:03:06