Android EditText实现关键词批量搜索示例

今天在项目中用到了用到了一种特殊的edittext，当用户在edittext中输入内容，点击搜索按钮的时候，输入的内容能够高亮，然后添加到输入的容器中。删除的时候，能够将容器中的关键词逐一删除。附上代码：

searchedittext.java

package com.jackie.searchresultedittext; 
 
import android.content.context; 
import android.graphics.color; 
import android.util.attributeset; 
import android.view.gravity; 
import android.view.keyevent; 
import android.view.layoutinflater; 
import android.view.view; 
import android.view.inputmethod.editorinfo; 
import android.widget.edittext; 
import android.widget.linearlayout; 
import android.widget.relativelayout; 
import android.widget.textview; 
 
/** 
 * created by jackie on 2017/2/21. 
 * 用于搜索的edittext 
 */ 
public class searchedittext extends relativelayout { 
  private context mcontext; 
  private layoutinflater minflater; 
  private view mview; 
  private linearlayout mcontainer; 
  private edittext medittext = null; 
 
  public searchedittext(context context) { 
    this(context, null); 
  } 
 
  public searchedittext(context context, attributeset attrs) { 
    this(context, attrs, 0); 
  } 
 
  public searchedittext(context context, attributeset attrs, int defstyleattr) { 
    super(context, attrs, defstyleattr); 
    init(context); 
  } 
   
  private onsearchchangelistener msearchchangelistener; 
 
  public interface onsearchchangelistener { 
    void searchchange(string s); 
    void removeview(int position); 
  } 
 
  public void setonsearchchangelistener(onsearchchangelistener searchchangelistener) { 
    msearchchangelistener = searchchangelistener; 
  } 
 
  private void init(context context) { 
    mcontext = context; 
    minflater = layoutinflater.from(mcontext); 
    mview = minflater.inflate(r.layout.search_edittext_layout, null); 
    layoutparams params = new layoutparams(layoutparams.match_parent, layoutparams.wrap_content); 
    params.leftmargin = 15; 
    params.rightmargin = 15; 
    addview(mview, params); 
     
    mcontainer = (linearlayout) mview.findviewbyid(r.id.layout); 
    medittext = (edittext) mview.findviewbyid(r.id.edittext); 
    medittext.setonkeylistener(new onkeylistener() { 
      @override 
      public boolean onkey(view v, int keycode, keyevent event) { 
        if (keycode == keyevent.keycode_del) { 
          if (isnotfastclick()) { 
            if (medittext.gettext().tostring().length() > 0) { 
              string str = medittext.gettext().tostring(); 
              str = str.substring(0, str.length() - 1); 
              medittext.settext(str); 
              medittext.setselection(str.length()); 
            } else { 
              if (mcontainer.getchildcount() > 0) { 
                if (msearchchangelistener != null) { 
                  msearchchangelistener.removeview(mcontainer.getchildcount() - 1); 
                } 
 
                mcontainer.removeviewat(mcontainer.getchildcount() - 1); 
              } 
            } 
          } 
        } 
 
        return true; 
      } 
    }); 
 
    medittext.setoneditoractionlistener(new textview.oneditoractionlistener() { 
      @override 
      public boolean oneditoraction(textview v, int actionid, keyevent event) { 
        if (actionid == editorinfo.ime_action_search) { 
 
          if (medittext.gettext().tostring().trim().equals("")) { 
            return true; 
          } 
 
          textview textview = new textview(mcontext); 
          textview.settext(medittext.gettext().tostring().trim()); 
          textview.settextsize(14); 
          textview.settextcolor(color.parsecolor("#dfe0e0")); 
          textview.setpadding(10, 0, 10, 0); 
          textview.setbackgroundresource(r.drawable.shape_edittext_round_bg); 
          textview.setgravity(gravity.center); 
          linearlayout.layoutparams params = new linearlayout.layoutparams(linearlayout.layoutparams.wrap_content, linearlayout.layoutparams.wrap_content); 
          params.leftmargin = 10; 
          textview.setlayoutparams(params); 
 
          if (msearchchangelistener != null) { 
            msearchchangelistener.searchchange(medittext.gettext().tostring().trim()); 
          } 
 
          medittext.settext(""); 
          mcontainer.addview(textview); 
        } 
 
        return true; 
      } 
    }); 
  } 
 
  public edittext getedittext() { 
    return medittext; 
  } 
  public linearlayout getcontainer() { 
    return mcontainer; 
  } 
 
  long lastclicktime = 0; 
 
  public boolean isnotfastclick() { 
    long time = system.currenttimemillis(); 
    if (time - lastclicktime >= 300) { 
      lastclicktime = time; 
      return true; 
    } else { 
      return false; 
    } 
  } 
} 

search_edittext_layout.xml

<?xml version="1.0" encoding="utf-8"?> 
<horizontalscrollview 
  xmlns:android="http://schemas.android.com/apk/res/android" 
  android:layout_width="match_parent" 
  android:layout_height="match_parent" 
  android:scrollbars="none" 
  android:fillviewport="true" 
  > 
  <linearlayout 
    android:layout_width="match_parent" 
    android:layout_height="33dp" 
    android:orientation="horizontal"> 
 
    <linearlayout 
      android:id="@+id/layout" 
      android:layout_width="wrap_content" 
      android:layout_height="match_parent" 
      android:orientation="horizontal" 
      android:gravity="center_vertical" 
      android:layout_gravity="center_vertical" /> 
 
    <edittext 
      android:gravity="center_vertical" 
      android:layout_gravity="center_vertical" 
      android:id="@+id/edittext" 
      android:layout_width="wrap_content" 
      android:layout_height="match_parent" 
      android:background="@null" 
      android:textsize="16dp" 
      android:textcolor="#dfe0e0" 
      android:layout_weight="1" 
      android:minwidth="50dp" 
      android:imeoptions="actionsearch" 
      android:singleline="true" 
      android:layout_marginleft="10dp"/> 
  </linearlayout> 
</horizontalscrollview> 

shape_edittext_round_bg.xml

<?xml version="1.0" encoding="utf-8"?> 
<shape xmlns:android="http://schemas.android.com/apk/res/android" 
  android:shape="rectangle"> 
  <solid android:color="#666666" /> 
  <corners android:radius="10dp"/> 
</shape> 

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。