Android实现加载广告图片和倒计时的开屏布局

这是一个android开屏布局的实例，可以用于加载广告图片和倒计时的布局。程序中设置的layoutparams,划分额外空间比例为6分之5，具体权重比例可根据用户自己需求来自定义，异步加载广告图片，相关的android代码。

具体实现代码如下：

package cn.waps.extend;
import android.app.activity;
import android.content.context;
import android.content.res.configuration;
import android.graphics.color;
import android.graphics.drawable.shapedrawable;
import android.graphics.drawable.shapes.roundrectshape;
import android.os.asynctask;
import android.os.handler;
import android.os.looper;
import android.view.gravity;
import android.view.view;
import android.view.viewgroup.layoutparams;
import android.widget.linearlayout;
import android.widget.relativelayout;
import android.widget.textview;
import com.qcn.wzlz.appconnect;
import com.qcn.wzlz.sdkutils;
public class loadingpopad {
 private final static handler mhandler = new handler();
 private static loadingpopad loadingapppopad;
 public static loadingpopad getinstance(){
 if(loadingapppopad == null){
  loadingapppopad = new loadingpopad();
 }
 if (looper.mylooper() == null) {
  looper.prepare();
 }
 return loadingapppopad;
 }
 /**
 * 获取开屏布局
 * @param context
 * @param time
 * @return
 */
 public view getcontentview(context context, int time){
 return getloadinglayout(context, time);
 }
 private linearlayout getloadinglayout(final context context, final int time){
 // 整体布局
 linearlayout layout = new linearlayout(context);
 layout.setorientation(linearlayout.vertical);
 layout.setgravity(gravity.center);
 int bg_id = context.getresources().getidentifier("loading_bg", "drawable", context.getpackagename());
 if(bg_id != 0){
  layout.setbackgroundresource(bg_id);
 }
 // 加载广告图片和倒计时的布局,用与
 linearlayout l_layout = new linearlayout(context);
 l_layout.setgravity(gravity.center);
 // 设置layoutparams,划分额外空间比例为6分之5(具体权重比例可根据自己需求自定义)
 l_layout.setlayoutparams(new linearlayout.layoutparams(layoutparams.fill_parent, layoutparams.fill_parent, 1f));
 // 加载图片的布局
 relativelayout pop_layout = new relativelayout(context);
 textview timeview = new textview(context);
 timeview.settext("剩余" + time + "秒");
 timeview.settextsize(10);
 timeview.settextcolor(color.black);
 timeview.setpadding(8, 3, 6, 2);
 int num = 12;
 // 对手机进行屏幕判断
 int displaysize = sdkutils.getdisplaysize(context);
 if(displaysize == 320){
  num = 8;
 }else if(displaysize == 240){
  num = 6;
 }else if(displaysize == 720){
  num = 16;
 }else if(displaysize == 1080){
  num = 20;
 }
 float[] outerradii = new float[] { 0, 0, num, num, 0, 0, num, num};
 shapedrawable timeview_shapedrawable = new shapedrawable();
 timeview_shapedrawable.setshape(new roundrectshape(outerradii, null, null));
 timeview_shapedrawable.getpaint().setcolor(color.argb(255, 255, 255, 255));
 timeview.setbackgrounddrawable(timeview_shapedrawable);
 //异步执行倒计时
 //异步加载广告图片
 new showpopadtask(context, pop_layout, timeview).execute();
 new timecountdowntask(timeview, time).execute();
 textview textview = new textview(context);
 textview.setlayoutparams(new linearlayout.layoutparams(layoutparams.fill_parent, layoutparams.fill_parent, 5f));
 textview.settext("正在启动,请稍后...");
 textview.setgravity(gravity.center);
 textview.settextcolor(color.white);
 l_layout.addview(pop_layout);
 layout.addview(l_layout);
 layout.addview(textview);
 return layout;
 }
 private class timecountdowntask extends asynctask<void, void, boolean>{
 textview timeview;
 int limit_time = 0;
 timecountdowntask(textview timeview, int time){
 this.timeview = timeview;
 this.limit_time = time;
 }
 @override
 protected boolean doinbackground(void... params) {
  while(limit_time > 0){
  mhandler.post(new runnable(){
   @override
   public void run() {
   timeview.settext("剩余" + limit_time + "秒");
   }
  });
  try {
   thread.sleep(1000);
  } catch (exception e) {
   e.printstacktrace();
  }
  limit_time--;
  }
  return null;
 }
 }
 private class showpopadtask extends asynctask<void, void, boolean>{
 context context;
 relativelayout pop_layout;
 linearlayout popadview;
 textview timeview;
 int height_full = 0;
 int height = 0;
 showpopadtask(context context, relativelayout pop_layout, textview timeview){
  this.context = context;
  this.pop_layout = pop_layout;
  this.timeview = timeview;
 }
 @override
 protected boolean doinbackground(void... params) {
  try {
  height_full = ((activity)context).getwindowmanager().getdefaultdisplay().getheight();
  int height_tmp = height_full - 75;//75为设备状态栏加标题栏的高度
  height = height_tmp * 5/6;
  while(true){
   if(((activity)context).getresources().getconfiguration().orientation == configuration.orientation_landscape
   && height_full <= 480){
   popadview = appconnect.getinstance(context).getpopadview(context, height, height);
   }else{
   popadview = appconnect.getinstance(context).getpopadview(context);
   }
   if(popadview != null){
   mhandler.post(new runnable(){
    @override
    public void run() {
    pop_layout.addview(popadview);
    popadview.setid(1);
    //倒计时布局所需的layoutparams
    relativelayout.layoutparams params = new relativelayout.layoutparams(layoutparams.wrap_content, layoutparams.wrap_content);
    params.addrule(relativelayout.align_top, popadview.getid());
    params.addrule(relativelayout.align_right, popadview.getid());
    // 对手机进行屏幕判断
    int displaysize = sdkutils.getdisplaysize(context);
    if(displaysize == 320){
     params.topmargin=1;
     params.rightmargin=1;
    }else if(displaysize == 240){
     params.topmargin=1;
     params.rightmargin=1;
    }else if(displaysize == 720){
     params.topmargin=3;
     params.rightmargin=3;
    }else if(displaysize == 1080){
     params.topmargin=4;
     params.rightmargin=4;
    }else{
     params.topmargin=2;
     params.rightmargin=2;
    }
    pop_layout.addview(timeview, params);
    }
   });
   break;
   }
   try {
   thread.sleep(500);
   } catch (interruptedexception e) {
   e.printstacktrace();
   }
  }
  } catch (exception e) {
  e.printstacktrace();
  }
  return null;
 }
 }
}