SearchView是android系统中内置的一个搜索框组件，可以很方便在添加在用户界面之上，但是也带来了一些问题，那就是searchview的UI是固定的，定制起来会很麻烦，如果对SearchView的要求比较高，完全可以采用button和EditText自己实现。这里先简单的说说SearchView的使用：
main.xml:
<LinearLayout 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:orientation="vertical" tools:context=".Main" > <SearchView android:id="@+id/sv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:imeOptions="actionGo" /> </LinearLayout>
在显示suggestion的时候会用到下面的布局文件:mytextview.xml
<?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="50sp" android:orientation="vertical" > <TextView android:id="@+id/textview" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center_vertical" android:paddingLeft="5sp" android:textSize="18sp" /> </LinearLayout>
main.java:
package com.app.main; import java.lang.reflect.Field; import android.app.Activity; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.Bundle; import android.view.View; import android.widget.ImageView; import android.widget.ListView; import android.widget.SearchView; import android.widget.SearchView.OnQueryTextListener; import android.widget.SimpleCursorAdapter; import android.widget.Toast; public class Main extends Activity { SearchView sv = null; ListView lv = null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); sv = (SearchView) this.findViewById(R.id.sv); sv.setIconifiedByDefault(false); sv.setSubmitButtonEnabled(true); sv.setQueryHint("查询"); //通过反射，修改默认的样式，可以从android的search_view.xml中找到需要的组件 try { Field field = sv.getClass().getDeclaredField("mSubmitButton"); field.setAccessible(true); ImageView iv = (ImageView) field.get(sv); iv.setImageDrawable(this.getResources().getDrawable( R.drawable.pointer)); } catch (Exception e) { e.printStackTrace(); } Cursor cursor = this.getTestCursor(); @SuppressWarnings("deprecation") SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.mytextview, cursor, new String[] { "tb_name" }, new int[] { R.id.textview }); sv.setSuggestionsAdapter(adapter); sv.setOnQueryTextListener(new OnQueryTextListener() { @Override public boolean onQueryTextChange(String str) { return false; } @Override public boolean onQueryTextSubmit(String str) { Toast.makeText(Main.this, str, Toast.LENGTH_SHORT).show(); return false; } }); } //添加suggestion需要的数据 public Cursor getTestCursor() { SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase( this.getFilesDir() + "/my.db3", null); Cursor cursor = null; try { String insertSql = "insert into tb_test values (null,?,?)"; db.execSQL(insertSql, new Object[] { "aa", 1 }); db.execSQL(insertSql, new Object[] { "ab", 2 }); db.execSQL(insertSql, new Object[] { "ac", 3 }); db.execSQL(insertSql, new Object[] { "ad", 4 }); db.execSQL(insertSql, new Object[] { "ae", 5 }); String querySql = "select * from tb_test"; cursor = db.rawQuery(querySql, null); } catch (Exception e) { String sql = "create table tb_test (_id integer primary key autoincrement,tb_name varchar(20),tb_age integer)"; db.execSQL(sql); String insertSql = "insert into tb_test values (null,?,?)"; db.execSQL(insertSql, new Object[] { "aa", 1 }); db.execSQL(insertSql, new Object[] { "ab", 2 }); db.execSQL(insertSql, new Object[] { "ac", 3 }); db.execSQL(insertSql, new Object[] { "ad", 4 }); db.execSQL(insertSql, new Object[] { "ae", 5 }); String querySql = "select * from tb_test"; cursor = db.rawQuery(querySql, null); } return cursor; } }
实现的效果如下：
以上就是搜索框组件SearchView的基本使用方法，希望能给大家一个参考，也希望大家多多支持脚本之家。