Question

我打算在其中显示一个带有EditText的弹出窗口，一旦显示键盘就可以自动激活：

public void showPopup(View view) // a button invoke
{
    LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View content = inflater.inflate(R.layout.popup, null);
    PopupWindow pw = new PopupWindow(content, LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT, true);
    pw.setBackgroundDrawable(new BitmapDrawable());
    pw.showAtLocation(view, Gravity.TOP, 0, 0);
    EditText editText = (EditText) findViewById(R.id.edit_message);
    (new Handler()).post(new Runnable() {
        public void run() {
            InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, 0);
        }
    });
}

和popup.xml是：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"

>
<EditText android:id="@+id/edit_message"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Hello Android!!"
android:hint="Filling in it!!"
android:layout_weight="1"
android:selectAllOnFocus="true"
android:focusable="true"
android:focusableInTouchMode="true"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Go!" 

/>
</LinearLayout>

它在纵向模式下运行良好，但在添加代码后不在横向模式下运行：

protected void onResume() {
    if(getRequestedOrientation()!=ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE){
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
    }
}

可以请求任何人提供一些解决方案吗？

Answer 1

在popup.xml文件中编辑

 <LinearLayout............
  .....
  android:focusable="true"
 android:focusableInTouchMode="true" ...

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="horizontal"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:focusable="true"
 android:focusableInTouchMode="true"
 >
 <EditText android:id="@+id/edit_message"
 android:layout_width="0dp"
 android:layout_height="wrap_content"
 android:text="Hello Android!!"
 android:hint="Filling in it!!"
 android:layout_weight="1"
 android:selectAllOnFocus="true"
 android:focusable="true"
 android:focusableInTouchMode="true"
 />
 <Button
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Go!" 
 />
 </LinearLayout>

Answer 2

在EditText requestFocus

中添加xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="fill_parent"

>
<EditText android:id="@+id/edit_message"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Hello Android!!"
android:hint="Filling in it!!"
android:layout_weight="1"
android:selectAllOnFocus="true"
android:focusable="true"
android:focusableInTouchMode="true"
><requestFocus/></EditText>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Go!" 

/>
</LinearLayout>

在横向模式下没有键盘的EditText

2 个答案: