Android自定義控件與特效

1、Android自定義控件和效果、自定義屬性、attrs . XML main . XML main . Java typed array a=context . obtainstylestributes(attrs，r . style able . mainscontentw=a . getint(r . styleable . mainview _ content width，0)；自定義view，main . XML define view . Java public class define view extends view overide public void ondraw(can

2、vas cavas) 消息以特定時(shí)間間隔到達(dá)動(dòng)畫的效果，時(shí)鐘控件，list view list view . setonscrollistener(new onscroll listener() override public void onscroll(abblic void onscroll override public void onscrollstatechanged(ABS list view，intscroll state)；)；閃爍效果控制，shader=new linear gradient (0，0，200，0，new int color.red，color.green，c

3、olor.blue，NUSmtxt paint . set shader(shader)； override protected void ondraw(canvas canvas) long now=system . current time milles()；float elapsed=(now-last time)/4.5f；Dx=elapsedMatrix Matrix=new Matrix()；if(start) matrix . set translate(dx，0)；invalidate()； else matrix.setTranslate(0，0)； shader.setLo

4、calMatrix(矩陣)；，圖像導(dǎo)航效果控件，反射算法重寫圖庫(kù)的getChildStaticTransformation()，以獲得圖片之間的切換效果，Listview順序移動(dòng)控件，mwmindowmanager=(windows manager)mwmindows managerMweindowmanager.addview (v，mweindowparams)；private touch interceptor . drag listener mdraglistener=new touch interceptor . drag listener() public void drag(in

5、t from，int from，)mlist view . invalidateviews()； ；詳細(xì)信息，dockbar slidelar 。SVN :/192 . 168 . 9 . 119/Android/common代碼，特殊效果，matrix.setpolytopooly (src，0，dst，0，src偽3D立體效果canvas . draw vertices(canvas . vertex mode . triangle _ fan，6，mvertsshadow 2，0，mtexsshadow 2，0，null，0例如書架效果、特殊效果的想法、JNI調(diào)用。運(yùn)行時(shí)效率高。但是，請(qǐng)注意將創(chuàng)建從Java層到c層的副本。Opengl圖片大小有限制.“動(dòng)畫”的缺點(diǎn)是不能控制過(guò)程自定義動(dòng)畫(通過(guò)持續(xù)渲染到達(dá)動(dòng)畫)。SMS widgets，View group protected void dispatch draw(canvas can vas) protected void onlayout(boolean changed，int lmstsartingservice=pm . new wakelock(power manager . partial _ wake _ l