Android 0 Basics section 62nd: Search box Component Searchview

Original: Android 0 Basics section 62nd: Search box Component Searchview

I. Overview of Searchview

Searchview is a search box component that allows the user to enter text within a text box and allows the listener to monitor user input, and to perform an actual search through the listener when the user enters the search by submitting it.

Searchview default is to show a search icon, click on the icon to expand the search box, you can also set the icon. You can specify common XML attributes and related methods as shown in the following table when using Searchview.

If you add a companion ListView for Searchview, you can add auto-complete functionality for Searchview.

Ii. Overview of Searchview

Next, a simple example program is used to learn the use of Searchview.

Continue to use the Advancedviewsample module of the Widgetsample project to create a searchview_layout.xml file in the app/main/res/layout/directory populated with the following code snippet:

 
 
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:layout_margin="15dp"
              android:orientation="vertical" >

    <SearchView
        android:id="@+id/searchView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:iconifiedByDefault="false"
        android:queryHint="请输入搜索内容" />

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />
</LinearLayout>

A Searchview component is defined in the layout file above and a ListView component is defined for the Searchview component, which is used to display a non-AutoComplete list for the Searchview component.

Next, write the operation control code for Searchview and add a listener for it. Create a new Searchviewactivity.java file and load the new layout file above, with the following code:

package com.jinyu.cqkxzsxy.android.advancedviewsample;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.text.TextUtils;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SearchView;
* *
*@ created by Xinhe
*. Description of Android zero base entry to proficient series tutorial, welcome to official account ShareExpert
* /
public class SearchViewActivity extends AppCompatActivity {
private SearchView mSearchView = null;
private ListView mListView = null;
private String[] mDatas = {"aaa", "bbb", "ccc", "airsaid"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.searchview_layout);
mSearchView = (SearchView) findViewById(R.id.searchView);
mListView = (ListView) findViewById(R.id.listView);
mListView.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, mDatas));
mListView.setTextFilterEnabled(true);
//Set search text listening
mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
//This method is triggered when the search button is clicked
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
//Trigger this method when search content changes
@Override
public boolean onQueryTextChange(String newText) {
if (!TextUtils.isEmpty(newText)){
mListView.setFilterText(newText);
}else{
mListView.clearTextFilter();
}
return false;
}
};
}
} 

Modify the activated activity, run the program, you can see the interface effect shown on the left.

After you enter content in the search box, you can see the filtering effect shown on the right.

Learn more about Searchview's simple use first, and suggest practicing more.

Come here today, if you have any questions welcome message to discuss together, also welcome to join the Android 0 Basic introductory Technical discussion group, grow together!

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Past period Summary share:

Android 0 Basics Introduction 1th: Android's past life

Android 0 Basics Section 2nd: Android system Architecture and application components those things

Android 0 Basics Section 3rd: Bring you up to talk about Android development environment

Android 0 Basics 4th: Installing and configuring the JDK correctly Ko fu the first trick

Android 0 Basics 5th: Use ADT bundles to easily meet the goddess

Android 0 Basics 6th: Configuration Optimization SDK Manager, official dating goddess

Android 0 Basics 7th: Take care of Android simulator and start the Sweet journey

Android 0 Basics 8th: HelloWorld, the starting point for my first trip

Android 0 Basics 9th: Android app, no code can be developed

Android 0 Basics Section 10th: Development IDE Big upgrade, finally ushered in Android Studio

Android 0 Basics Introductory Section 11th: Simple steps to take you to fly, run Android Studio project

Android 0 Basics 12th: Get familiar with the Android studio interface and start selling

Android 0 Basics 13th: Android Studio Configuration optimization to create a development tool

Android 0 Basics 14th: Using high-speed genymotion, stepping into the rocket era

Android 0 Basics Section 15th: Mastering the Android Studio project structure, sailing

Android 0 Basics Section 16th: Android User Interface Development overview

Android 0 Basics Section 17th: text box TextView

Android 0 Basics Section 18th: Input box EditText

Android 0 Basics Get started section 19th: Buttons button

Android 0 Basics 20th: check box checkbox and radio button radiobutton

Android 0 Basics Section 21st: Switch Components ToggleButton and switch

Android 0 Basics Section 22nd: Image View ImageView

Android 0 Basics Section 23rd: Image button ImageButton and zoom button Zoombutton

Android 0 Basics Section 24th: Customize view simple to use to create your own controls

Android 0 Basics Section 25th: Simple and most commonly used linearlayout linear layouts

Android 0 Basics Section 26th: Two alignments, layout_gravity and gravity differ greatly

Android 0 Basics section 27th: Using padding and margin correctly

Android 0 Basics Section 28th: Easy to master relativelayout relative layout

Android 0 Basics 29th: Use tablelayout table layouts

Android 0 Basics 30th: Two minutes master Framelayout frame layout

Android 0 Basics Section 31st: absolutelayout absolute Layout with less

Android 0 Basics Section 32nd: New GridLayout Grid layout

Android 0 Basics section 33rd: Android Event Handling overview

Android 0 Basics Section 34th: Listening-based event handling in Android

Android 0 Basics Section 35th: Callback-based event handling in Android

Android 0 Basics Section 36th: Handling of Android system events

Android 0 Basics 37th: First Knowledge ListView

Android 0 Basics 38th: First Knowledge Adapter

Android 0 Basics section 39th: listactivity and custom list items

Android 0 Basics Section 40th: Customizing Arrayadapter

Android 0 Basics Section 41st: Using Simpleadapter

Android 0 Basics Section 42nd: Customizing Baseadapter

Android 0 Basics section 43rd: ListView Optimization and List End-to-end use

Android 0 Basics Section 44th: ListView Data Dynamic Update

Android 0 Basic Getting Started section 45th: Grid view GridView

Android 0 Basics section 46th: List Options Box spinner

Android 0 Basic Getting Started section 47th: AutoComplete text Box Autocompletetextview

Android 0 Basics Section 48th: Collapsible list Expandablelistview

Android 0 Basics section 49th: Adapterviewflipper picture Carousel

Android 0 Basics Section 50th: StackView card Stacking

Android 0 Basics Section 51st: progress bar ProgressBar

Android 0 Basics section 52nd: Customizing ProgressBar Cool progress bar

Android 0 Basics 53rd: Drag bar Seekbar and star rating bar Ratingbar

Android 0 Basics section 54th: View switch Components Viewswitcher

Android 0 Basics Section 55th: Imageswitcher and Textswitcher

Android 0 Basics Section 56th: Flip View Viewflipper

Android 0 Basics Section 57th: DatePicker and Timepicker selectors

Android 0 Basics Section 58th: Value selector numberpicker

Android 0 Basics Section 59th: Common Three clock clocks components

Android 0 Basics Section 60th: Calendar view CalendarView and timer chronometer

Android 0 Basics Section 61st: Scrolling view ScrollView

Android 0 Basics section 62nd: Search box Component Searchview