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
把这个放到onResume()方法中。
binding.etxtSearch.isFocusableInTouchMode = true
binding.etxtSearch.isFocusable = true
binding.etxtSearch.requestFocus()
val inputMethodManager = context?.getSystemService(Activity.INPUT_METHOD_SERVICE) as InputMethodManager
inputMethodManager.showSoftInput(binding.etxtSearch, InputMethodManager.SHOW_IMPLICIT)
其他回答
这里是KeyboardHelper类，用于隐藏和显示键盘
import android.content.Context;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
/**
* Created by khanhamza on 06-Mar-17.
*/
public class KeyboardHelper {
public static void hideSoftKeyboard(final Context context, final View view) {
if (context == null) {
return;
}
view.requestFocus();
view.postDelayed(new Runnable() {
@Override
public void run() {
InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
assert imm != null;
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}, 1000);
}
public static void hideSoftKeyboard(final Context context, final EditText editText) {
editText.requestFocus();
editText.postDelayed(new Runnable() {
@Override
public void run() {
InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
assert imm != null;
imm.hideSoftInputFromWindow(editText.getWindowToken(), 0);
}
}, 1000);
}
public static void openSoftKeyboard(final Context context, final EditText editText) {
editText.requestFocus();
editText.postDelayed(new Runnable() {
@Override
public void run() {
InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
assert imm != null;
imm.showSoftInput(editText, InputMethodManager.SHOW_IMPLICIT);
}
}, 1000);
}
}
这对我很有效， 多亏了ungalcrys
显示键盘:
editText = (EditText)findViewById(R.id.myTextViewId);
editText.requestFocus();
InputMethodManager imm = (InputMethodManager)getSystemService(this.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,InputMethodManager.HIDE_IMPLICIT_ONLY);
隐藏键盘:
InputMethodManager imm = (InputMethodManager) getSystemService(this.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(editText.getWindowToken(), 0);
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)
}
}
这些答案我一个都找不到。我的解决方案是将它们结合起来:
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);
editText.requestFocus();
imm.showSoftInput(editText, InputMethodManager.SHOW_FORCED);
我不确定为什么这对我来说是必需的——根据文档，似乎这两种方法都应该单独起作用。
我只用了一行代码
firstInputField.setNextFocusDownId(R.id.id_of_next_targeted_text_field);
