Android: how to make keyboard enter button say “Search” and handle its click?

问题

I can\'t figure this out. Some apps have a EditText (textbox) which, when you touch it and it brings up the on-screen keyboard, the keyboard has a \"Search\" button instead of an enter key.

I want to implement this. How can I implement that Search button and detect press of the Search button?

Edit: found how to implement the Search button; in XML, android:imeOptions=\"actionSearch\" or in Java, EditTextSample.setImeOptions(EditorInfo.IME_ACTION_SEARCH);. But how do I handle the user pressing that Search button? Does it have something to do with android:imeActionId?

回答1:

In the layout set your input method options to search.

<EditText
    android:imeOptions="actionSearch" 
    android:inputType="text" />

In the java add the editor action listener.

editText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
    @Override
    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
        if (actionId == EditorInfo.IME_ACTION_SEARCH) {
            performSearch();
            return true;
        }
        return false;
    }
});

回答2:

Hide keyboard when user clicks search. Addition to Robby Pond answer

private void performSearch() {
    editText.clearFocus();
    InputMethodManager in = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    in.hideSoftInputFromWindow(searchEditText.getWindowToken(), 0);
    //...perform search
}

回答3:

In xml file, put imeOptions="actionSearch" and inputType="text", maxLines="1":

<EditText
    android:id="@+id/search_box"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="@string/search"
    android:imeOptions="actionSearch"
    android:inputType="text"
    android:maxLines="1" />

回答4:

In Kotlin

evLoginPassword.setOnEditorActionListener { _, actionId, _ ->
    if (actionId == EditorInfo.IME_ACTION_DONE) {
        doTheLoginWork()
    }
    true
}

Partial Xml Code

 <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
       <android.support.design.widget.TextInputLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"

            android:layout_marginBottom="8dp"
            android:layout_marginTop="8dp"
            android:paddingLeft="24dp"
            android:paddingRight="24dp">

            <EditText
                android:id="@+id/evLoginUserEmail"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="@string/email"
                android:inputType="textEmailAddress"
                android:textColor="@color/black_54_percent" />
        </android.support.design.widget.TextInputLayout>

        <android.support.design.widget.TextInputLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="8dp"
            android:layout_marginTop="8dp"
            android:paddingLeft="24dp"
            android:paddingRight="24dp">

            <EditText
                android:id="@+id/evLoginPassword"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:hint="@string/password"
                android:inputType="textPassword"
                android:imeOptions="actionDone"
                android:textColor="@color/black_54_percent" />
        </android.support.design.widget.TextInputLayout>
</LinearLayout>

回答5:

This answer is for TextInputEditText :

In the layout XML file set your input method options to your required type. for example done.

<com.google.android.material.textfield.TextInputLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <com.google.android.material.textfield.TextInputEditText
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:imeOptions="actionGo"/>

Similarly, you can also set imeOptions to actionSubmit, actionSearch, etc

In the java add the editor action listener.

textInputLayout.getEditText().setOnEditorActionListener(new 

    TextView.OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
            if (actionId == EditorInfo.IME_ACTION_GO) {
                performYourAction();
                return true;
            }
            return false;
        }
    });

If you're using kotlin :

textInputLayout.editText.setOnEditorActionListener { _, actionId, _ ->
    if (actionId == EditorInfo.IME_ACTION_GO) {
        performYourAction()
    }
    true
}

回答6:

by XML:

 <EditText
        android:id="@+id/search_edit"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="@string/search"
        android:imeOptions="actionSearch"
        android:inputType="text" />

By Java:

 editText.clearFocus();
    InputMethodManager in = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
    in.hideSoftInputFromWindow(searchEditText.getWindowToken(), 0);

来源：https://stackoverflow.com/questions/3205339/android-how-to-make-keyboard-enter-button-say-search-and-handle-its-click