"我的活动记录"未捕捉到搜索意图

Question

我正在学习Android，为大学做一些项目。我正在做一个应用程序来查看 Web 服务上的数据。但是我的活动没有抓住搜索意图(或者我认为(。我遵循了Android开发人员指南：https://developer.android.com/guide/topics/search/search-dialog。我遵循了它，但我的应用程序不起作用。我在这里放了我的代码：

搜索活动.java

package com.example.javierortiz.pprog2_ac4;
import android.app.SearchManager;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
public class SearchActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search);
Intent intent = getIntent();
if (Intent.ACTION_SEARCH.equals(intent.getAction())){
String asdf = intent.getStringExtra(SearchManager.QUERY);
Log.d("asdfasdfasdf", asdf);
}
}
}

可搜索.xml

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
android:label= "@string/app_name"
android:hint = "@string/search_hint">
</PreferenceScreen>

安卓清单.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.javierortiz.pprog2_ac4">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".SearchActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<action android:name="android.intent.action.SEARCH" />
<category android:name="android.intent.category.DEFAULT"/>
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data  android:name="android.app.searchable"
android:resource="@xml/searchable" />
</activity>
</application>
</manifest>

activity_search.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".SearchActivity">
<SearchView
android:id="@+id/search"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

提前谢谢你

Answer 1

如果要实现搜索视图侦听器，请尝试：

SearchView search = findViewById(R.id.search);
search.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextChange(String newText) {
return false;
}
@Override
public boolean onQueryTextSubmit(String query) {
Log.d("onQueryTextChange", "query" + query);
// Do your task here
return false;
}
});