SearchView 搜索视图 是一种非常常见的可自定义的搜索框
简单使用
输入内容后点击搜索跳转到百度搜索页面，运用了一些 WebView 知识。
activity_main.xml
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| <?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:orientation="vertical"
tools:context=".MainActivity">
<SearchView
android:id="@+id/searchView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:queryHint="Search on Baidu" />
</LinearLayout>
|
MainActivity.java
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| public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
SearchView searchView = findViewById(R.id.searchView);
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
@Override
public boolean onQueryTextSubmit(String query) {
Intent intent = new Intent(MainActivity.this, SearchActivity.class);
intent.putExtra("queryString", query);
startActivity(intent);
return true;
}
@Override
public boolean onQueryTextChange(String newText) {
return false;
}
});
}
}
|
SearchActivity.java
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| public class SearchActivity extends AppCompatActivity {
@SuppressLint("SetJavaScriptEnabled")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
WebView webView = new WebView(this);
Intent intent = getIntent();
String queryString = intent.getStringExtra("queryString");
Toast.makeText(this, "Searching for: " + queryString, Toast.LENGTH_SHORT).show();
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setAllowFileAccess(true);
webView.getSettings().setAllowContentAccess(true);
webView.loadUrl("https://www.baidu.com/s?wd=" + queryString);
setContentView(webView);
}
}
|
