按下按钮后显示键盘

Question

I have clear button to clear EditText.

<Button
        android:id="@+id/bClearText"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right|center_vertical"
        android:layout_marginRight="10dp"
        android:onClick="clearEtSearch"
        android:background="@drawable/delete" />

This method clears EditText:

    public void clearEtSearch(View v) {
    etSearch.setText("");
    etSearch.requestFocus();
    showKeyboard(etSearch);
}

I have taken code below from hiding and changed to show keyboard, but it is not working

    private void showKeyboard(View view) {
    InputMethodManager manager = (InputMethodManager) view.getContext()
            .getSystemService(INPUT_METHOD_SERVICE);
    if (manager != null)
        manager.showSoftInputFromInputMethod(view.getWindowToken(), 0);
}

What I am doing wrong? Please give suggestions to correct my code.

Answer 1

I'm not sure but you can try to use Context.INPUT_METHOD_SERVICE instead of just INPUT_METHOD_SERVICE . Some are Forcing the Soft Keyboard open question for more.

You can also see How to show soft-keyboard when edittext is focused See if following works:

public void clearEtSearch(View v) {
    etSearch.setText("");
    etSearch.requestFocus();

    InputMethodManager manager = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);    
    manager.showSoftInputFromInputMethod(etSearch.getWindowToken(), 0);

}

Depending on your need you may try different constants of InputMethodManager like following:

public void clearEtSearch(View v) {
    etSearch.setText("");
    etSearch.requestFocus();
    InputMethodManager manager = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);    
    manager.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
}

or

public void clearEtSearch(View v) {
    etSearch.setText("");
    etSearch.requestFocus();
    InputMethodManager manager= (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
    manager.showSoftInput(etSearch, InputMethodManager.SHOW_FORCED);
}

I haven't tried the code right not so not sure which one would work. See There are many related questions. Hope it works well for you.

Answer 2

Use this method and enjoy

public void showSoftKeyboard() {
        try {
            InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Activity.INPUT_METHOD_SERVICE);
            inputMethodManager.toggleSoftInputFromWindow(getCurrentFocus().getWindowToken(), InputMethodManager.SHOW_FORCED, 0);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }