Android EditText输入键监听器 [英] Android EditText enter key listener
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问题描述
我有EditText字段,我想在Enter键上启动我的代码,但我仍然在EditText字段中只有新行。你能帮帮我吗?
这是我的源代码:
在XML布局中:
Please I have EditText field and I want on Enter key to start some my code, but I still got only new line in EditText field. Please can you help me? Here is my source code: In XML layout:
<RelativeLayout 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:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hledej_text"
android:id="@+id/hledej"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="217dp" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textHledani"
android:layout_above="@+id/hledej"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:hint="Napis co chces hledat"
android:imeOptions="actionDone"
android:inputType="text|textMultiLine"/>
</RelativeLayout>
和MainActivity.java:
And MainActivity.java:
public class MainActivity extends ActionBarActivity {
private EditText textHledani;
private Button hledej;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textHledani = (EditText)findViewById(R.id.textHledani);
hledej = (Button)findViewById(R.id.hledej);
hledej.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(textHledani.getText().toString().isEmpty()){
Toast.makeText(v.getContext(),"Nevim co mam hledat!",Toast.LENGTH_LONG).show();
}
else{
provedHledani();
}
}
});
textHledani.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if ( (actionId == EditorInfo.IME_ACTION_DONE) || ((event.getKeyCode() == KeyEvent.KEYCODE_ENTER) && (event.getAction() == KeyEvent.ACTION_DOWN ))){
provedHledani();
return true;
}
else{
return false;
}
}
});
}
private void provedHledani(){
Intent intent = new Intent(Intent.ACTION_WEB_SEARCH);
intent.putExtra(SearchManager.QUERY,textHledani.getText().toString());
startActivity(intent);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
推荐答案
尝试将布局中的EditText更改为以下代码:
Try change EditText in layout to code below:
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textHledani"
android:layout_above="@+id/hledej"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:hint="Napis co chces hledat"
android:imeOptions="actionDone"
android:singleLine="true"
android:lines="1"
android:inputType="text"/>
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