and*_*per 6 android focus multiline android-softkeyboard android-edittext
假设您有多个EditText实例.
您希望能够使用键盘的下一个按钮(用作ENTER键的替换)在它们之间切换.
每个EditText可能都有一个可以多行显示的长内容(假设我希望将其限制为3行,如果文本仍然太长,请使用ellipsize).
正如我所注意到的,TextView和EditText都有非常奇怪的行为,缺乏一些基本功能.其中之一是,如果您希望转到下一个视图,则需要为每个EditText实例设置singleLine ="true".
我已经尝试了下一个xml布局(和其他试验),但它不起作用:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:orientation="vertical"
android:gravity="center" tools:context=".MainActivity">
<EditText android:id="@+id/editText1" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:nextFocusDown="@+id/editText2"
android:singleLine="false" android:imeOptions="actionNext"
android:maxLines="3" android:ellipsize="end"
android:text="@string/very_long_text" />
<EditText android:id="@+id/editText2" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:nextFocusDown="@+id/editText3"
android:singleLine="false" android:imeOptions="actionNext"
android:maxLines="3" android:ellipsize="end"
android:text="@string/very_long_text" />
<EditText android:id="@+id/editText3" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:singleLine="false"
android:maxLines="3" android:ellipsize="end"
android:text="@string/very_long_text"/>
</LinearLayout>
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我也尝试了下一个代码,但它确实是一个愚蠢的解决方案:
...
final EditText editText=(EditText)findViewById(R.id.editText1);
editText.setOnEditorActionListener(new OnEditorActionListener()
{
@Override
public boolean onEditorAction(final TextView v,final int actionId,final KeyEvent event)
{
if(actionId==EditorInfo.IME_NULL)
{
final View view=findViewById(editText.getNextFocusDownId());
if(view!=null)
{
view.requestFocus();
return true;
}
}
return false;
}
});
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它有效,但由于下面的原因,这是一个愚蠢的解决方案:
有没有更好的方法来实现这一目标?一个优雅,工作,并显示"下一个"键而不是ENTER键?
我发现这个问题类似于带有完成操作按钮的多行 EditText帖子。既然我已经写过答案了,那我再补充一下吧。不过,我只能回答你的前两点,因为我还没有使用Ellipsize (我认为一旦你设置了下一个按钮部分,它应该相对容易)。
以下Java 代码可用于将键盘 Enter 更改为“DONE”/“NEXT”按钮:
////////////Code to Hide SoftKeyboard on Enter (DONE) Press///////////////
editText1.setRawInputType(InputType.TYPE_CLASS_TEXT|InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD|InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
editText1.setImeActionLabel("DONE",EditorInfo.IME_ACTION_DONE); //Set Return Carriage as "DONE"
editText1.setImeOptions(EditorInfo.IME_ACTION_DONE);
editText1.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event)
{
if (event == null) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
// Capture soft enters in a singleLine EditText that is the last EditText
// This one is useful for the new list case, when there are no existing ListItems
editText1.clearFocus();
editText2.requestFocus(); //Call the next Edit_Text into Focus
//Comment above requestFocus() for edit_text3
//Hiding SoftKeyboard. Uncomment it for edit_text3
//InputMethodManager inputMethodManager = (InputMethodManager) getActivity().getSystemService(Activity.INPUT_METHOD_SERVICE);
//inputMethodManager.hideSoftInputFromWindow(getActivity().getCurrentFocus().getWindowToken(), 0);
}
else if (actionId == EditorInfo.IME_ACTION_NEXT) {
// Capture soft enters in other singleLine EditTexts
} else if (actionId == EditorInfo.IME_ACTION_GO) {
} else {
// Let the system handle all other null KeyEvents
return false;
}
}
else if (actionId == EditorInfo.IME_NULL) {
// Capture most soft enters in multi-line EditTexts and all hard enters;
// They supply a zero actionId and a valid keyEvent rather than
// a non-zero actionId and a null event like the previous cases.
if (event.getAction() == KeyEvent.ACTION_DOWN) {
// We capture the event when the key is first pressed.
} else {
// We consume the event when the key is released.
return true;
}
}
else {
// We let the system handle it when the listener is triggered by something that
// wasn't an enter.
return false;
}
return true;
}
});
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