当用户按下工具栏中的后退图标时,我如何关闭键盘?
how i can close the keyboard when the user press the back icon in my toolbar?
我已经尝试通过我的代码显示键盘,因为 closeListener 和 onExpandListener 没有 work.Where 我失败了?有一个方法可以在用户按下工具栏的后退按钮时调用?
返回工具栏按钮的图像 --> http://imgur.com/WhzT1tp
这是我的 java 代码;
具有搜索视图的 class:
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>
还有我的菜单:
<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>
如何在用户按下工具栏中的后退按钮时关闭键盘?
编辑:
我试过了,但是当应用程序是 运行 时,如果我按图像指示的按钮,程序不会通过此方法:
@Override
public boolean onOptionsItemSelected(MenuItem item) {}
编辑 x2:
我试过了,但它只在点击 2 次后才传递给该方法,我将项目文件放到网上 :),对 xml 感到抱歉,因为我是意大利人,xml 资源中的所有写入都是意大利语,但是只有 4 次写入:)
项目文件 --> https://drive.google.com/file/d/0B907WWO7eA5bZ1BTUmlIekxDaGs/view?usp=sharing
编辑 x3:
我听从了您的建议,但无法正常工作,您可以试试我的代码吗? :)
在 onCreateOptionsMenu(Menu menu) 中,添加这一行:
// This will add the back arrow to your action bar.
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
在您的 onOptionsItemSelected()
中添加:
// 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
}
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);
}
覆盖 activity 的 onOptionsItemSelected
方法以拦截对 android.R.id.home
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);
}
我已经尝试通过我的代码显示键盘,因为 closeListener 和 onExpandListener 没有 work.Where 我失败了?有一个方法可以在用户按下工具栏的后退按钮时调用?
返回工具栏按钮的图像 --> http://imgur.com/WhzT1tp
这是我的 java 代码; 具有搜索视图的 class:
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>
还有我的菜单:
<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>
如何在用户按下工具栏中的后退按钮时关闭键盘?
编辑: 我试过了,但是当应用程序是 运行 时,如果我按图像指示的按钮,程序不会通过此方法:
@Override
public boolean onOptionsItemSelected(MenuItem item) {}
编辑 x2: 我试过了,但它只在点击 2 次后才传递给该方法,我将项目文件放到网上 :),对 xml 感到抱歉,因为我是意大利人,xml 资源中的所有写入都是意大利语,但是只有 4 次写入:)
项目文件 --> https://drive.google.com/file/d/0B907WWO7eA5bZ1BTUmlIekxDaGs/view?usp=sharing
编辑 x3: 我听从了您的建议,但无法正常工作,您可以试试我的代码吗? :)
在 onCreateOptionsMenu(Menu menu) 中,添加这一行:
// This will add the back arrow to your action bar.
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
在您的 onOptionsItemSelected()
中添加:
// 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
}
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);
}
覆盖 activity 的 onOptionsItemSelected
方法以拦截对 android.R.id.home
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);
}