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
packagecom.jackie.searchresultedittext;
importandroid.content.Context;
importandroid.graphics.Color;
importandroid.util.AttributeSet;
importandroid.view.Gravity;
importandroid.view.KeyEvent;
importandroid.view.LayoutInflater;
importandroid.view.View;
importandroid.view.inputmethod.EditorInfo;
importandroid.widget.EditText;
importandroid.widget.LinearLayout;
importandroid.widget.RelativeLayout;
importandroid.widget.TextView;
/**
*CreatedbyJackieon2017/2/21.
*用于搜索的EditText
*/
publicclassSearchEditTextextendsRelativeLayout{
privateContextmContext;
privateLayoutInflatermInflater;
privateViewmView;
privateLinearLayoutmContainer;
privateEditTextmEditText=null;
publicSearchEditText(Contextcontext){
this(context,null);
}
publicSearchEditText(Contextcontext,AttributeSetattrs){
this(context,attrs,0);
}
publicSearchEditText(Contextcontext,AttributeSetattrs,intdefStyleAttr){
super(context,attrs,defStyleAttr);
init(context);
}
privateOnSearchChangeListenermSearchChangeListener;
publicinterfaceOnSearchChangeListener{
voidsearchChange(Strings);
voidremoveView(intposition);
}
publicvoidsetOnSearchChangeListener(OnSearchChangeListenersearchChangeListener){
mSearchChangeListener=searchChangeListener;
}
privatevoidinit(Contextcontext){
mContext=context;
mInflater=LayoutInflater.from(mContext);
mView=mInflater.inflate(R.layout.search_edittext_layout,null);
LayoutParamsparams=newLayoutParams(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(newOnKeyListener(){
@Override
publicbooleanonKey(Viewv,intkeyCode,KeyEventevent){
if(keyCode==KeyEvent.KEYCODE_DEL){
if(isNotFastClick()){
if(mEditText.getText().toString().length()>0){
Stringstr=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);
}
}
}
}
returntrue;
}
});
mEditText.setOnEditorActionListener(newTextView.OnEditorActionListener(){
@Override
publicbooleanonEditorAction(TextViewv,intactionId,KeyEventevent){
if(actionId==EditorInfo.IME_ACTION_SEARCH){
if(mEditText.getText().toString().trim().equals("")){
returntrue;
}
TextViewtextView=newTextView(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.LayoutParamsparams=newLinearLayout.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);
}
returntrue;
}
});
}
publicEditTextgetEditText(){
returnmEditText;
}
publicLinearLayoutgetContainer(){
returnmContainer;
}
longlastClickTime=0;
publicbooleanisNotFastClick(){
longtime=System.currentTimeMillis();
if(time-lastClickTime>=300){
lastClickTime=time;
returntrue;
}else{
returnfalse;
}
}
}
search_edittext_layout.xml
<?xmlversion="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
<?xmlversion="1.0"encoding="utf-8"?> <shapexmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <solidandroid:color="#666666"/> <cornersandroid: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毛票票。