Android仿微信实现评论功能

//给评论图标设置点击事件 mIv_header_discuss.setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {  showPopupcomment();  } });

private PopupWindow popupWindow; private View popupView = null; private EditText inputComment; private String nInputContentText; private TextView btn_submit; private RelativeLayout rl_input_container; private InputMethodManager mInputManager; @SuppressLint("WrongConstant") private void showPopupcomment() { if (popupView == null){ //加载评论框的资源文件   popupView = LayoutInflater.from(context).inflate(R.layout.comment_popupwindow, null); } inputComment = (EditText) popupView.findViewById(R.id.et_discuss); btn_submit = (Button) popupView.findViewById(R.id.btn_confirm); rl_input_container = (RelativeLayout)popupView.findViewById(R.id.rl_input_container); //利用Timer这个Api设置延迟显示软键盘，这里时间为200毫秒 Timer timer = new Timer(); timer.schedule(new TimerTask() {  public void run()  {  mInputManager = (InputMethodManager)getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);  mInputManager.showSoftInput(inputComment, 0);  } }, 200); if (popupWindow == null){  popupWindow = new PopupWindow(popupView, RelativeLayout.LayoutParams.MATCH_PARENT,   RelativeLayout.LayoutParams.WRAP_CONTENT, false); } //popupWindow的常规设置，设置点击外部事件，背景色 popupWindow.setTouchable(true); popupWindow.setFocusable(true); popupWindow.setOutsideTouchable(true); popupWindow.setBackgroundDrawable(new ColorDrawable(0x00000000)); popupWindow.setTouchInterceptor(new View.OnTouchListener() {  @Override  public boolean onTouch(View v, MotionEvent event) {  if (event.getAction() == MotionEvent.ACTION_OUTSIDE)   popupWindow.dismiss();  return false;  } }); // 设置弹出窗体需要软键盘，放在setSoftInputMode之前 popupWindow.setSoftInputMode(PopupWindow.INPUT_METHOD_NEEDED); // 再设置模式，和Activity的一样，覆盖，调整大小。 popupWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); //设置popupwindow的显示位置，这里应该是显示在底部，即Bottom popupWindow.showAtLocation(popupView, Gravity.BOTTOM, 0, 0); popupWindow.update(); //设置监听 popupWindow.setOnDismissListener(new PopupWindow.OnDismissListener() {  // 在dismiss中恢复透明度  @RequiresApi(api = Build.VERSION_CODES.CUPCAKE)  public void onDismiss() {  mInputManager.hideSoftInputFromWindow(inputComment.getWindowToken(), 0); //强制隐藏键盘  } }); //外部点击事件 rl_input_container.setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {  mInputManager.hideSoftInputFromWindow(inputComment.getWindowToken(), 0); //强制隐藏键盘  popupWindow.dismiss();  } }); //评论框内的发送按钮设置点击事件 btn_submit.setOnClickListener(new View.OnClickListener() {  @Override  public void onClick(View v) {  nInputContentText = inputComment.getText().toString().trim();  if (nInputContentText == null || "".equals(nInputContentText)) {   showToastMsgShort("请输入评论内容");   return;  }  mInputManager.hideSoftInputFromWindow(inputComment.getWindowToken(),0);  popupWindow.dismiss();  } }); }

popupWindow.setSoftInputMode(PopupWindow.INPUT_METHOD_NEEDED);popupWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/rl_input_container" android:layout_width="match_parent" android:layout_height="match_parent"> <LinearLayout  android:layout_width="match_parent"  android:layout_height="44dp"  android:background="@color/colorWhite"  android:layout_alignParentBottom="true"  android:orientation="horizontal">  <EditText  android:id="@+id/et_discuss"  android:layout_width="0dp"  android:layout_weight="1"  android:layout_height="38dp"  android:textColorHint="#a2a2a2"  android:textSize="13sp"  android:layout_marginRight="7dp"  android:layout_marginLeft="15dp"  android:layout_marginBottom="6dp"  android:layout_marginTop="6dp"  android:ellipsize="end"  android:background="@drawable/round_edittext_input"  android:layout_gravity="center_vertical"  android:paddingLeft="@dimen/ten_padding"  android:paddingRight="@dimen/ten_padding"  android:singleLine="true" />  <Button  android:id="@+id/btn_confirm"  android:text="发送"  android:background="@drawable/btn_discuss_bg"  android:textSize="16sp"  android:layout_gravity="center_vertical"  android:textColorHint="#b7b7b7"  android:textColor="@color/colorWhite"  android:layout_marginRight="@dimen/ten_padding"  android:gravity="center"  android:layout_width="40dp"  android:layout_height="38dp"/>  </LinearLayout></RelativeLayout>