PopupWindow中嵌套EditText不能粘贴的问题

之前在项目中遇到个问题

就是写一个简单的评论框，当时是用popupwindow写的，里面嵌套Edittext，但刚做完就碰到个问题，就是虽然Edittext获得焦点但是不弹出软键盘（有点蛋疼），无奈只好手动去调用和取消键盘

private void autoFocus() {
        InputMethodManager imm = (InputMethodManager)mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.toggleSoftInput(0, InputMethodManager.RESULT_SHOWN); 
    }
    protected void autoHide() {
        InputMethodManager imm = (InputMethodManager)mContext.getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS); 
    }

然后本以为这个bug就告一段落了，但事与愿违。第二天老板说自己要评论，需要粘贴一些文字，但是粘贴不了。在android中，在Edittext中长按一般都会弹出标签来操作复制和粘贴全选等选项，但在我当前的情况并没有。后来就各种找，终于在http://stackoverflow.com/questions/15857755/android-textview-does-not-support-text-selection-action-mode-cancelled，里面说这其实是android的一个bug，所以想要解决是比较困难的。当然也有另一种思路，就是换一种实现方式，用DialogFragment，google也更加推荐用这种方式来写对话框，最后我也采取了这种方案，上面所提到bug没有再出现。

没有用过DialogFragment可以先到下面网址学习
http://blog.csdn.net/lmj623565791/article/details/37815413/

不过要实现上图的样式，稍微有点改动，而且在手指点击阴影部分的时候对话框消失。直接上代码

comment_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/share_content_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="bottom"
    android:orientation="vertical" >

    <ScrollView
        android:id="@+id/sl_comm_bot"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <LinearLayout
            android:id="@+id/ll_comm_bot"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#fff" >

            <EditText
                android:id="@+id/comm_et"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_marginBottom="16dp"
                android:layout_marginLeft="16dp"
                android:layout_marginRight="16dp"
                android:layout_marginTop="10dp"
                android:layout_weight="4"
                android:background="@drawable/shape_common"
                android:focusable="true"
                android:focusableInTouchMode="true"
                android:gravity="left|top"
                android:hint="立即评论..."
                android:inputType="textMultiLine"
                android:lines="4"
                android:maxLength="100" />

            <Button
                android:id="@+id/comm_bt"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:layout_marginRight="16dp"
                android:layout_weight="1"
                android:background="@drawable/fabiao_selector"
                android:text="发表"
                android:textColor="#fff"
                android:textSize="18sp" />
        </LinearLayout>
    </ScrollView>

</LinearLayout>

CommentDialog.java

public class CommentDialog extends DialogFragment{
    private View mLayout;
    private LayoutInflater mInflater;
    private Context mContext;
    private Button comm_bt;
    private MyEditText comm_et;
    private NewsEntity news;
    public interface DismissListener  
    {  
        void onDismissComplete(boolean isComm);  
    }  

    public CommentDialog (NewsEntity news){
        this.news = news;
    }
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(DialogFragment.STYLE_NORMAL, android.R.style.Theme_Holo_Light_DialogWhenLarge_NoActionBar);
    }
    private void autoFocus() {
        InputMethodManager imm = (InputMethodManager)getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.toggleSoftInput(0, InputMethodManager.RESULT_SHOWN); 
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            mLayout = inflater.inflate(R.layout.comment_dialog, container); 
            comm_bt = (Button) mLayout.findViewById(R.id.comm_bt);
            comm_et = (MyEditText) mLayout.findViewById(R.id.comm_et);
            getDialog().getWindow().setBackgroundDrawable(
                     new ColorDrawable(R.color.alert_dark));
            comm_et.requestFocus();         WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE);
            autoFocus();
            comm_bt.setOnClickListener(new OnClickListener() {

                @Override
                public void onClick(View v) {
                    if(StringUtil.isEmpty(comm_et.getText().toString().trim())){
                        Toast.makeText(mContext, "请输入评论内容", 0).show();
                        return ;
                    }
                    comment();
                }

            });
            //点击阴影消失
            mLayout.setOnTouchListener(new OnTouchListener() {
                public boolean onTouch(View v, MotionEvent event) {
                    int top = mLayout.findViewById(R.id.sl_comm_bot).getTop();
                    int y = (int) event.getY();
                    if (event.getAction() == MotionEvent.ACTION_UP) {
                        if (y < top) {
                            dismiss();
                        }
                    }
                    return true;
                }
            });
            comm_et.setOnKeyListener(new OnKeyListener() {

                @Override
                public boolean onKey(View v, int keyCode, KeyEvent event) {
                    if (keyCode == KeyEvent.KEYCODE_BACK) {
                        dismiss();
                        return true;
                    }
                    return false;
                }
            });
            return mLayout;
    }
  //替换回车制表符
    public String replaceBlank(String str) {  
          String dest = "";  
          if (str!=null) {  
                  Pattern p = Pattern.compile("t|r|n");  
                  Matcher m = p.matcher(str);  
                  dest = m.replaceAll(" ");  
          }  
          return dest;  
  }  

    private void comment() {
        //操作网络请求
    }
}

调用

 FragmentManager fragmentManager = getFragmentManager();
                CommentDialog dialog = new CommentDialog(news);  
                dialog.show(fragmentManager, "commentDialog");