Android with delete button edittext_android

Mainactivity is as follows:

Package cc.textview5; 
Import Android.os.Bundle; 
Import Android.text.TextUtils; 
Import Android.view.View; 
Import Android.view.View.OnClickListener; 
Import Android.widget.Button; 
Import Android.widget.Toast; 
Import android.app.Activity; 
 /** * Demo Description: * Custom control implementation with the removal of edittext * * Learning materials: * http://blog.csdn.net/xiaanming/article/details/11066685 * * Thank you very very much/public class Mainactivity extends activity {private Cleanableedittext Musernamecleanableed 
  Ittext; 
  Private Cleanableedittext Mpasswordcleanableedittext; 
  Private Button Mloginbutton; 
    @Override protected void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate); 
    Setcontentview (R.layout.main); 
  Init (); 
    private void Init () {musernamecleanableedittext= (Cleanableedittext) Findviewbyid (R.id.usernameedittext); 
    mpasswordcleanableedittext= (Cleanableedittext) Findviewbyid (R.id.passwordedittext); mloginbutton= (Button) Findviewbyid (r.id.Loginbutton); 
  Mloginbutton.setonclicklistener (New Onclicklistenerimpl ());  Private class Onclicklistenerimpl implements Onclicklistener {@Override public void OnClick (view view) {if (Textutils.isempty (Musernamecleanableedittext.gettext ())) {Musernamecleanableedittext.setshakeanima 
        tion (); 
      Toast.maketext (Mainactivity.this, "Please enter user name", Toast.length_short). Show (); } if (Textutils.isempty (Mpasswordcleanableedittext.gettext ())) {Mpasswordcleanableedittext.setshakeanim 
        Ation (); 
      Toast.maketext (Mainactivity.this, "Please enter password", Toast.length_short). Show (); 
 } 
    } 
 
  } 
   
 
}

The

Cleanableedittext is as follows:

Package cc.textview5; 
Import Android.content.Context; 
Import android.graphics.drawable.Drawable; 
Import android.text.Editable; 
Import Android.text.TextWatcher; 
Import Android.util.AttributeSet; 
Import android.view.MotionEvent; 
Import Android.view.View; 
Import android.view.animation.Animation; 
Import Android.view.animation.CycleInterpolator; 
Import android.view.animation.TranslateAnimation; 
Import Android.widget.EditText; /** * To determine whether to show the right clean icon/public class Cleanableedittext extends EditText {private drawable Mrig when focus changes and input content changes 
  htdrawable; 
   
  Private Boolean Ishasfocus; 
    Public Cleanableedittext {Super (context); 
  Init (); 
    Public Cleanableedittext (context, AttributeSet attrs) {Super (context, attrs); 
  Init ();  
    Public Cleanableedittext (context, AttributeSet attrs, int defstyle) {Super (context, attrs, Defstyle); 
  Init (); private void Init () {//GETCOMPOUNDDRAWABLES://returns drawables for the left, top, right, and bottom borders. 
     
    drawable [] drawables=this.getcompounddrawables ();   
     
    Get right position drawable//that we set in the layout file android:drawableright mrightdrawable=drawables[2]; 
    Set the monitoring This.setonfocuschangelistener for focus changes (new Focuschangelistenerimpl ()); 
    Set the EditText text-changing listening this.addtextchangedlistener (new Textwatcherimpl ()); 
  Let the right clean icon not be visible setcleardrawablevisible (false) when initialized; /** * When the finger is raised in the area of the clean icon * We treat this as a purge operation * getwidth (): Get the width of the control * EVENT.GETX (): The coordinates of the lift (change coordinates are relative to the control In itself) * Gettotalpaddingright (): Clean icon to the left edge of the control to the right edge of the distance * getpaddingright (): Clean icon to the right edge to the right edge of the control * so: * get Width ()-Gettotalpaddingright () indicates: * The area to the left of the clean icon to the left of the control * getwidth ()-Getpaddingright () is: * The left side of the control to the clean icon right The area of the edge * so the area between the two is just the area of the clean icon * * @Override public boolean ontouchevent (Motionevent event) {switch ( Event.getaction ()) {Case MotiOnEvent.ACTION_UP:boolean Isclean = (Event.getx () > (GetWidth ()-gettotalpaddingright ()) && 
      (Event.getx () < (getwidth ()-getpaddingright ()); 
      if (Isclean) {SetText (""); 
 
    } break; 
    Default:break; 
  Return Super.ontouchevent (event); Private class Focuschangelistenerimpl implements onfocuschangelistener{@Override public void Onfocusch 
       Ange (View V, boolean hasfocus) {ishasfocus=hasfocus; 
         if (Ishasfocus) {Boolean isvisible=gettext (). toString (). Length () >=1; 
      Setcleardrawablevisible (isVisible); 
      else {setcleardrawablevisible (false); Verify that the right clean icon is displayed when the input is finished private class Textwatcherimpl implements textwatcher{@Overrid 
       e public void aftertextchanged (Editable s) {Boolean isvisible=gettext (). toString (). Length () >=1; Setcleardrawablevisible (isVisible);
    @Override public void beforetextchanged (charsequence s, int start, int count,int after) { 
     
  @Override public void ontextchanged (charsequence s, int start, int before,int count) {} //Hide or show the right clean icon protected void setcleardrawablevisible (Boolean isVisible) {drawable rightdrawabl 
    E 
    if (isVisible) {rightdrawable = mrightdrawable; 
    else {rightdrawable = null; ///Use code to set the bottom icon Setcompounddrawables (Getcompounddrawables () () [0],getcompounddrawable 
  S () [1], Rightdrawable,getcompounddrawables () [3]); 
  //Displays an animation to prompt the user to enter public void Setshakeanimation () {this.setanimation (Shakeanimation (5)); //cycletimes Animation Repeat number public Animation shakeanimation (int cycletimes) {Animation translateanimation = new Tr 
    Anslateanimation (0, 10, 0, 10); Translateanimation.setinterpolator (New Cycleinterpolator (CycleTimes)); 
    Translateanimation.setduration (1000); 
  return translateanimation; 
 } 
 
}

The

Main.xml is as follows:

<relativelayout xmlns:android= "http://schemas.android.com/apk/res/android" xmlns:tools= "http:// Schemas.android.com/tools "android:layout_width=" match_parent "android:layout_height=" Match_parent "Android:paddi" ngleft= "20dip" android:paddingright= "20dip" > <cc.textview5.cleanableedittext android:id= "@+id/usern Ameedittext "android:layout_width=" fill_parent "android:layout_height=" wrap_content "android:hint=" username "Android:layout_margintop=" 30dip "android:drawableleft=" @drawable/icon_user "android:drawableright=" @drawa Ble/clean_selector "/> <cc.textview5.cleanableedittext android:id=" @+id/passwordedittext "an Droid:layout_width= "Fill_parent" android:layout_height= "wrap_content" android:hint= "password" ANDROID:PASSW Ord= "true" android:layout_margintop= "100dip" android:drawableleft= "@drawable/account_icon" android:drawable right= "@drawable/clean_selector"/> 
    
   <button android:id= "@+id/loginbutton" android:layout_width= "Fill_parent" Android:layout_heigh 





 t= "Wrap_content" android:text= "Login" android:layout_margintop= "155dip"/> </RelativeLayout>

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