我设计了一个只有数字键的自定义键盘。我遵循了以下链接： 示例
现在当我触摸编辑框时，键盘出现了。但是，如果我有 10 个编辑框，并且我正在触摸第 10 个编辑框，则会出现键盘并隐藏编辑框。我怎样才能使编辑框自动向上滚动，使其不会被隐藏。
我为 xml 文件编写了以下布局代码：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<EditText
android:id="@+id/edittext0"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp"
android:inputType="text" />
<EditText
android:id="@+id/edittext1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/edittext0"
android:layout_centerHorizontal="true"
android:layout_marginTop="30dp"
android:inputType="text" />
<EditText
android:id="@+id/edittext2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/edittext1"
android:layout_centerHorizontal="true"
android:layout_marginTop="40dp"
android:inputType="text" />
<EditText
android:id="@+id/edittext3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/edittext2"
android:layout_centerHorizontal="true"
android:layout_marginTop="40dp"
android:inputType="text" />
<EditText
android:id="@+id/edittext4"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/edittext3"
android:layout_centerHorizontal="true"
android:layout_marginTop="40dp"
android:inputType="text" />
</RelativeLayout>
</ScrollView>
<android.inputmethodservice.KeyboardView
android:id="@+id/keyboardview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:focusable="true"
android:focusableInTouchMode="true"
android:visibility="gone" />
</RelativeLayout>
这也是我的自定义键盘java类：
class CustomKeyboard {
/** A link to the KeyboardView that is used to render this CustomKeyboard. */
private KeyboardView mKeyboardView;
/** A link to the activity that hosts the {@link #mKeyboardView}. */
private Activity mHostActivity;
/** The key (code) handler. */
private OnKeyboardActionListener mOnKeyboardActionListener = new OnKeyboardActionListener() {
public final static int CodeDelete = -5; // Keyboard.KEYCODE_DELETE
public final static int CodePrev = 55000;
public final static int CodeNext = 55001;
public final static int CodeDone = 55002;
@Override
public void onKey(int primaryCode, int[] keyCodes) {
// NOTE We can say '<Key android:codes="49,50" ... >' in the xml
// file; all codes come in keyCodes, the first in this list in
// primaryCode
// Get the EditText and its Editable
View focusCurrent = mHostActivity.getWindow().getCurrentFocus();
if (focusCurrent == null
|| focusCurrent.getClass() != EditText.class)
return;
EditText edittext = (EditText) focusCurrent;
Editable editable = edittext.getText();
int start = edittext.getSelectionStart();
// Apply the key to the edittext
if (primaryCode == CodeDone) {
hideCustomKeyboard();
}
else if (primaryCode == CodeDelete)
{
if (editable != null && start > 0)
editable.delete(start - 1, start);
}
else if (primaryCode == CodePrev) {
View focusNew = edittext.focusSearch(View.FOCUS_BACKWARD);
if (focusNew != null)
focusNew.requestFocus();
}
else if (primaryCode == CodeNext) {
View focusNew = edittext.focusSearch(View.FOCUS_FORWARD);
if (focusNew != null)
focusNew.requestFocus();
}
else { // insert character
editable.insert(start, Character.toString((char) primaryCode));
}
}
@Override
public void onPress(int arg0) {
}
@Override
public void onRelease(int primaryCode) {
}
@Override
public void onText(CharSequence text) {
}
@Override
public void swipeDown() {
}
@Override
public void swipeLeft() {
}
@Override
public void swipeRight() {
}
@Override
public void swipeUp() {
}
};
/**
* Create a custom keyboard, that uses the KeyboardView (with resource id
* <var>viewid</var>) of the <var>host</var> activity, and load the keyboard
* layout from xml file <var>layoutid</var> (see {@link Keyboard} for
* description). Note that the <var>host</var> activity must have a
* <var>KeyboardView</var> in its layout (typically aligned with the bottom
* of the activity). Note that the keyboard layout xml file may include key
* codes for navigation; see the constants in this class for their values.
* Note that to enable EditText's to use this custom keyboard, call the
* {@link #registerEditText(int)}.
*
* @param host
* The hosting activity.
* @param viewid
* The id of the KeyboardView.
* @param layoutid
* The id of the xml file containing the keyboard layout.
*/
public CustomKeyboard(Activity host, int viewid, int layoutid) {
mHostActivity = host;
mKeyboardView = (KeyboardView) mHostActivity.findViewById(viewid);
mKeyboardView.setKeyboard(new Keyboard(mHostActivity, layoutid));
mKeyboardView.setPreviewEnabled(false); // NOTE Do not show the preview
// balloons
mKeyboardView.setOnKeyboardActionListener(mOnKeyboardActionListener);
// Hide the standard keyboard initially
mHostActivity.getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
}
/** Returns whether the CustomKeyboard is visible. */
public boolean isCustomKeyboardVisible() {
return mKeyboardView.getVisibility() == View.VISIBLE;
}
/**
* Make the CustomKeyboard visible, and hide the system keyboard for view v.
*/
public void showCustomKeyboard(View v) {
mKeyboardView.setVisibility(View.VISIBLE);
mKeyboardView.setEnabled(true);
if (v != null)
((InputMethodManager) mHostActivity
.getSystemService(Activity.INPUT_METHOD_SERVICE))
.hideSoftInputFromWindow(v.getWindowToken(), 0);
}
/** Make the CustomKeyboard invisible. */
public void hideCustomKeyboard() {
mKeyboardView.setVisibility(View.GONE);
mKeyboardView.setEnabled(false);
}
/**
* Register <var>EditText<var> with resource id <var>resid</var> (on the
* hosting activity) for using this custom keyboard.
*
* @param resid
* The resource id of the EditText that registers to the custom
* keyboard.
*/
public void registerEditText(int resid) {
// Find the EditText 'resid'
EditText edittext = (EditText) mHostActivity.findViewById(resid);
// Make the custom keyboard appear
edittext.setOnFocusChangeListener(new OnFocusChangeListener() {
// NOTE By setting the on focus listener, we can show the custom
// keyboard when the edit box gets focus, but also hide it when the
// edit box loses focus
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus)
showCustomKeyboard(v);
else
hideCustomKeyboard();
}
});
edittext.setOnClickListener(new OnClickListener() {
// NOTE By setting the on click listener, we can show the custom
// keyboard again, by tapping on an edit box that already had focus
// (but that had the keyboard hidden).
@Override
public void onClick(View v) {
showCustomKeyboard(v);
}
});
// Disable standard keyboard hard way
// NOTE There is also an easy way:
// 'edittext.setInputType(InputType.TYPE_NULL)' (but you will not have a
// cursor, and no 'edittext.setCursorVisible(true)' doesn't work )
edittext.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
EditText edittext = (EditText) v;
int inType = edittext.getInputType(); // Backup the input type
edittext.setInputType(InputType.TYPE_NULL); // Disable standard
// keyboard
edittext.onTouchEvent(event); // Call native handler
edittext.setInputType(inType); // Restore input type
return true; // Consume touch event
}
});
// Disable spell check (hex strings look like words to Android)
edittext.setInputType(edittext.getInputType()
| InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
}
}
请帮帮我！！
谢谢，阿林丹
