Android implementation of control usage in listing list to show semi-transparent small form effect _android

The example in this article describes the control usage of the Android implementation, which displays a semi-transparent small form effect in list lists. Share to everyone for your reference, specific as follows:

Android controls that show translucent small form effects in list lists, much less directly on the code, all in the comments:

Import COM.HIAPK.MARKET.R;
Import Android.content.Context;
Import Android.graphics.PixelFormat;
Import Android.os.Handler;
Import Android.view.LayoutInflater;
Import Android.view.View;
Import Android.view.WindowManager;
Import Android.view.WindowManager.LayoutParams;
Import Android.widget.TextView; /** * window display semi-transparent hint box in the middle of the widget * usage: 1. New 2. Showprevletter (String prevletter) * @author LL * */public class Prevletterdialog {//form disappears time delay private static FINA
  l int delayed_hiden = 500;
  The class that implements the Runnable interface is private removewindow Mremovewindow = new Removewindow ();
  Changes to UI threads can be implemented in Handler private Handler mhandler;
  Form Manager Private WindowManager Mwindowmanager;
  Display the translucent font frame in the middle of a form private TextView mdialogtext;
  Whether the private Boolean mshowing is being displayed;
  Are you ready to display the private Boolean mready?
  The characters that appear in the form private char mprevletter = Character.min_value;
   /** * Note: The context must be obtained by GetContext () in the visible UI, otherwise it throws an exception. * @param context */public prevletterdialog (context) {//GetForm Manager Mwindowmanager = (windowmanager) context.getsystemservice (Context.window_service);
    The cloth creator was layoutinflater inflate = (layoutinflater) context.getsystemservice (Context.layout_inflater_service);
    Get TextView Mdialogtext = (TextView) inflate.inflate (r.layout.list_position, NULL);
    Set TextView as Visible mdialogtext.setvisibility (view.invisible);
    Show the Mdialogtext through Handler mhandler = new Handler ();
        Post enables you to invoke the UI thread in multithreading and change Mhandler.post (new Runnable () {public void run () {Mready = true; Layout parameters for forms Windowmanager.layoutparams LP = new Windowmanager.layoutparams (layoutparams.wrap_content, La Youtparams.wrap_content, WindowManager.LayoutParams.TYPE_APPLICATION, WindowManager.LayoutParams.FLAG_NOT_TOUC hable |
        WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE, pixelformat.translucent);
      Add TextView to the form Mwindowmanager.addview (MDIALOGTEXT, LP);
  }
    });
  }//Set visibilitypublic void Setmready (Boolean mready) {this.mready = Mready; /** * Generally used in the Onscroll method, the argument is a string, cannot be empty, takes the first character to display * @param prevletter/public void Showprevletter (string prevle
    tter) {if (!mready) {return;
    } Char firstletter = Prevletter.charat (0);
      if (!mshowing && firstletter!= mprevletter) {mshowing = true;
    Mdialogtext.setvisibility (view.visible);
    }//Set TextView display Font Mdialogtext.settext ((Character) firstletter). toString ());
    Removing the Runnable interface class Mhandler.removecallbacks (Mremovewindow) implemented by Mremovewindow;
    Add the Runnable interface class implemented by Mremovewindow, and set the delay mhandler.postdelayed (Mremovewindow, Delayed_hiden);
  Mprevletter = Firstletter; /** * Implements the Runnable interface class * * Private Final class Removewindow implements Runnable {public void run () {R
    Emovewindow ();
      } private void Removewindow () {if (mshowing) {mshowing = false;
    Mdialogtext.setvisibility (view.invisible);

 }
  }
}

The following is an XML file:

<?xml version= "1.0" encoding= "Utf-8"?> <textview xmlns:android=
"http://schemas.android.com/apk/res/" Android "
  android:textsize=" 50sp "
  android:textcolor=" "@color/band_common_content"
  android:background = "@drawable/common_list_title"
  android:minwidth= "70dip"
  android:layout_height= "Wrap_content
  " android:padding= "5dip"
  android:gravity= "center"
/>

More interested readers of Android content can view this site: "The activity of Android programming skills Summary", "Android File Operation skills Summary", "Android programming development of SD card operation method Summary", " Android Development Primer and Advanced tutorials, Android Resource operations tips, Android View overview and Android Control Usage summary

I hope this article will help you with the Android program.