我有一个包含如下视图的布局:

<LinearLayout>
<TextView...>
<TextView...>
<ImageView ...>
<EditText...>
<Button...>
</linearLayout>

如何以编程方式在我的EditText上设置焦点(显示键盘)?

我已经尝试过了,它只在我正常启动我的活动时才起作用,但当我在TabHost中启动它时,它不起作用。

txtSearch.setFocusableInTouchMode(true);
txtSearch.setFocusable(true);
txtSearch.requestFocus();

当前回答

下面是如何显示和隐藏软键盘的kotlin扩展:

fun View.showKeyboard() {
  this.requestFocus()
  val inputMethodManager = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
  inputMethodManager.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT)
}

fun View.hideKeyboard() {
  val inputMethodManager = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
  inputMethodManager.hideSoftInputFromWindow(windowToken, 0)
}

然后你可以这样做:

editText.showKeyboard()
// OR
editText.hideKeyboard()

其他回答

editTxt.setOnFocusChangeListener { v, hasFocus ->
            val imm = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
            if (hasFocus) {
                imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY)
            } else {
                imm.hideSoftInputFromWindow(v.windowToken, 0)
            }
        }
final EditText tb = new EditText(this);
tb.requestFocus();
tb.postDelayed(new Runnable() {
    @Override
    public void run() {
        InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        inputMethodManager.showSoftInput(tb, InputMethodManager.SHOW_IMPLICIT);
    }
}, 1000);

下面是如何显示和隐藏软键盘的kotlin扩展:

fun View.showKeyboard() {
  this.requestFocus()
  val inputMethodManager = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
  inputMethodManager.showSoftInput(this, InputMethodManager.SHOW_IMPLICIT)
}

fun View.hideKeyboard() {
  val inputMethodManager = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
  inputMethodManager.hideSoftInputFromWindow(windowToken, 0)
}

然后你可以这样做:

editText.showKeyboard()
// OR
editText.hideKeyboard()

我只用了一行代码

firstInputField.setNextFocusDownId(R.id.id_of_next_targeted_text_field);

我尝试了很多方法,但它不起作用,不确定是因为我使用共享过渡从片段到包含编辑文本的活动。

顺便说一句,我的编辑文本也包装在线性布局。

我添加了一个轻微的延迟来请求焦点,下面的代码对我来说是有效的: (芬兰湾的科特林)

 et_search.postDelayed({
     editText.requestFocus()

     showKeyboard()
 },400) //only 400 is working fine, even 300 / 350, the cursor is not showing

showKeyboard ()

 val imm = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
 imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0)