我试图通过我的代码显示键盘,因为closeListener和onExpandListener不起作用。我失败了吗?当用户按下工具栏的后退按钮时,有一种方法可以调用吗?
后面工具栏按钮的图像 - > http://imgur.com/WhzT1tp
这是我的java代码; 具有searchview的类:
public class MainActivity extends ActionBarActivity {
SearchView searchView = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.activity_main);
super.onCreate(savedInstanceState);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
//Title and subtitle
toolbar.setTitle("Magazzino Chimica");
setSupportActionBar(toolbar);
Intent intent = getIntent();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main,menu);
// Associate searchable configuration with the SearchView
final SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
searchView = (SearchView) menu.findItem(R.id.action_search)
.getActionView();
searchView.setSearchableInfo(searchManager
.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(false);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
Toast.makeText(getApplicationContext(),"premuto",Toast.LENGTH_LONG).show();
if (R.id.action_search == item.getItemId()){
searchView.requestFocus();
InputMethodManager tastiera = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
tastiera.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
}
return true;
}
我的searchable.xml文件:
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/label_ricerca"
android:hint="@string/suggerimento_ricerca" >
</searchable>
我的清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="it.developer.eliax1996.databasegestionariochimica" >
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchResultsActivity" />
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- Search results activity -->
<activity android:name=".SearchResultsActivity"
android:parentActivityName=".MainActivity" >
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
</activity>
</application>
</manifest>
和我的菜单:
<menu 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"
tools:context=".MainActivity">
<item
android:id="@+id/action_search"
android:title="cerca"
android:icon="@drawable/ic_search_white"
app:showAsAction="collapseActionView|ifRoom"
app:actionViewClass="android.widget.SearchView" />
</menu>
当用户按下工具栏中的后退按钮时,如何关闭键盘?
编辑: 我试过但是当应用程序运行时,如果我按下图像指示的按钮,程序就没有通过这种方法:
@Override
public boolean onOptionsItemSelected(MenuItem item) {}
编辑x2: 我试过但是只有在点击2次之后传递给方法,我把项目文件放在网上:),抱歉xml,因为我是意大利语,xml资源中的所有写入都是意大利语,但只有4次写入:)< / p>
项目文件 - &gt; https://drive.google.com/file/d/0B907WWO7eA5bZ1BTUmlIekxDaGs/view?usp=sharing
编辑x3: 我按照你的建议,但没有喷射工作,你能尝试我的代码吗? :)
答案 0 :(得分:2)
在onCreateOptionsMenu(菜单菜单)中,添加以下行:
// This will add the back arrow to your action bar.
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
在onOptionsItemSelected()
中,添加以下内容:
// Respond to the action bar's Up/Home button
if (item.getItemId() == android.R.id.home) {
hideSoftKeyboard(this);
// finish(), NavUtils.navigateUpFromSameTask(activity) or something like that
}
使用隐藏键盘的方法:
public static void hideSoftKeyboard(Activity activity) {
InputMethodManager inputMethodManager = (InputMethodManager) activity.getSystemService(Activity.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), 0);
}
答案 1 :(得分:0)
覆盖活动的onOptionsItemSelected
方法,以拦截android.R.id.home
上的点击。
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == android.R.id.home) {
searchView.postDelayed(new Runnable() {
@Override
public void run() {
InputMethodManager imm = (InputMethodManager) this.getSystemService(Context.INPUT_METHOD_SERVICE);`enter code here`
imm.hideSoftInputFromWindow(searchView.getWindowToken(), 0);
}
}, 300);
return true;
}
return super.onOptionsItemSelected(item);
}