Android View 完美实现EditText 在软键盘上边的示例

此方法基于PopupWindow,适合需要回复内容时响应点击事件，打开软键盘，编辑框在软键盘上部。
优点，编辑框使用CleanEdittext,监听输入状态来更改回复按钮颜色，添加title等。

先展示效果

点击评论打开软键盘，编辑框在软键盘上部，点击其他区域消失收起软键盘：

1.BaseSelectPopupWindow 的代码。

public class BaseSelectPopupWindow extends PopupWindow {

private View popView;

private View view;

private OnHeadClickListener onHeadClickListener;

private TextView tv_head;

protected Context context;

private boolean isOpenKeyboard=false;;

private boolean isShowTitle=true;

private boolean isOkClose=true;

protected int maxTextSize = 24;
protected int minTextSize = 14;
public BaseSelectPopupWindow(Context context, int layoutId ) {

  this.context=context;
  LayoutInflater inflater = (LayoutInflater) context
      .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  popView = inflater.inflate(R.layout.pop_view, null);
  tv_head=(TextView) popView.findViewById(R.id.tv_head);

  LinearLayout contentView = (LinearLayout) popView
      .findViewById(R.id.content);
  view=inflater.inflate(layoutId, null);
  contentView.addView(view,contentView.getLayoutParams());
  // btn_take_photo.setOnClickListener(itemsOnClick);
  // 设置SelectPicPopupWindow的View
  this.setContentView(popView);
  // 设置SelectPicPopupWindow弹出窗体的宽
  this.setWidth(LayoutParams.FILL_PARENT);
  // 设置SelectPicPopupWindow弹出窗体的高

  WindowManager wm = (WindowManager) context
      .getSystemService(Context.WINDOW_SERVICE);
//  this.setHeight(wm.getDefaultDisplay().getHeight() / 2);
  this.setHeight(LayoutParams.WRAP_CONTENT);
  // 设置SelectPicPopupWindow弹出窗体可点击
  this.setFocusable(true);
  // 设置SelectPicPopupWindow弹出窗体动画效果
  this.setAnimationStyle(R.style.AnimBottom);
  // 实例化一个ColorDrawable颜色为半透明
  ColorDrawable dw = new ColorDrawable(0xb0000000);
  // 设置SelectPicPopupWindow弹出窗体的背景
  this.setBackgroundDrawable(dw);
  // mMenuView添加OnTouchListener监听判断获取触屏位置如果在选择框外面则销毁弹出框

  /*
   * popView.setOnTouchListener(new OnTouchListener() {
   *
   * public boolean onTouch(View v, MotionEvent event) {
   *
   * int height = popView.findViewById(R.id.pop_layout).getTop(); int
   * y=(int) event.getY(); if(event.getAction()==MotionEvent.ACTION_UP){
   * if(y<height){ dismiss(); } } return true; } });
   */

  (popView.findViewById(R.id.btn_back)).setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
       dismiss();
    }
  });

  (popView.findViewById(R.id.btn_right)).setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {
      if(onHeadClickListener!=null){
        onHeadClickListener.okListener();
      }
      if(isOkClose){
        dismiss();
      }

    }
  });

  if(isOpenKeyboard){
    openKeyboard();
  }

}
public boolean isShowTitle() {
  return isShowTitle;
}
public void setShowTitle(boolean isShowTitle) {
  this.isShowTitle = isShowTitle;
  if(!isShowTitle){
    ((RelativeLayout)tv_head.getParent()).setVisibility(View.GONE);
  }
}
/**
 * 打开软键盘
 */
private void openKeyboard() {

    Timer timer = new Timer();
    timer.schedule(new TimerTask() {
        @Override
        public void run() {
            InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);

        }
    }, 1000);
}
public boolean isOpenKeyboard() {
  return isOpenKeyboard;
}
public void setOpenKeyboard(boolean isOpenKeyboard) {
  this.isOpenKeyboard = isOpenKeyboard;
}

public OnHeadClickListener getOnHeadClickListener() {
  return onHeadClickListener;
}

public void setOnHeadClickListener(OnHeadClickListener onHeadClickListener) {
  this.onHeadClickListener = onHeadClickListener;
}

public interface OnHeadClickListener{
  public void okListener();
}

public void setTitle(String value){
  if(tv_head!=null){
    tv_head.setText(value);
  }
}
public boolean isOkClose() {
  return isOkClose;
}
public void setOkClose(boolean isOkClose) {
  this.isOkClose = isOkClose;
}
public Context getContext() {
  return context;
}

对应的XML 布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/white_gray"
android:gravity="center_vertical" >

<RelativeLayout
  android:id="@+id/head"
  android:layout_width="match_parent"
  android:layout_height="44dp"
  android:layout_alignParentTop="true"
  android:background="@color/head_yellow" >

  <TextView
    android:id="@+id/btn_back"
    style="@style/nav_side_title_text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentLeft="true"
    android:layout_centerVertical="true"
    android:layout_marginLeft="15dp"
    android:text="@string/cancel"
    android:textColor="@color/black_light_color"
    android:textSize="@dimen/TitleTextSize" />

  <TextView
    android:id="@+id/tv_head"
    style="@style/nav_head_title_text"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:ellipsize="end"
    android:gravity="center"
    android:visibility="gone" />

  <TextView
    android:id="@+id/btn_right"
    style="@style/nav_side_title_text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentRight="true"
    android:layout_centerVertical="true"
    android:layout_marginRight="15dp"
    android:text="@string/sure"
    android:textColor="@color/black"
    android:textSize="@dimen/TitleTextSize" />
</RelativeLayout>

<LinearLayout
  android:id="@+id/content"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:layout_below="@id/head"
  android:gravity="center"
  android:orientation="vertical" >
 </LinearLayout>

</RelativeLayout>

其中style:nav_side_title_text是定义文字大小的。

2.需要使用的时候

private BaseSelectPopupWindow popWiw;// 回复的 编辑框

声明之后使用的时候初始化并调用：

 private void popWiw( ) {

  popWiw = new BaseSelectPopupWindow(context, R.layout.edit_data);
  // popWiw.setOpenKeyboard(true);
  popWiw.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED);
  popWiw.setFocusable(true);
  popWiw.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE);
  popWiw.setShowTitle(false);
  InputMethodManager im = (InputMethodManager) context
      .getSystemService(Context.INPUT_METHOD_SERVICE);
  im.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);

  final Button send = (Button) popWiw.getContentView().findViewById(
      R.id.btn_send);
  final EditText edt = (EditText) popWiw.getContentView().findViewById(
      R.id.edt_content);

  edt.setInputType(EditorInfo.TYPE_CLASS_TEXT);
  edt.setImeOptions(EditorInfo.IME_ACTION_SEND);
  edt.addTextChangedListener(new TextWatcher() {

    @Override
    public void onTextChanged(CharSequence s, int start, int before,
                 int count) {
      if (TextUtils.isEmpty(edt.getText())) {
        send.setEnabled(false);
      } else {
        send.setEnabled(true);
      }
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count,
                   int after) {

    }

    @Override
    public void afterTextChanged(Editable s) {
      // TODO Auto-generated method stub

    }
  });
  edt.setOnEditorActionListener(new TextView.OnEditorActionListener() {

    @Override
    public boolean onEditorAction(TextView v, int actionId,
                   KeyEvent event) {
      if (actionId == EditorInfo.IME_ACTION_SEND
          || (event != null && event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) {

        if (!TextUtils.isEmpty(edt.getText().toString().trim())) {
      String content = edt.getText().toString().trim();
          // /提交内容  sumbit(content)
          popWiw.dismiss();
        }
        return true;
      }
      return false;
    }
  });
  send.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {
      if (!TextUtils.isEmpty(edt.getText().toString().trim())) {

        // /提交内容
        String content = edt.getText().toString().trim();

        popWiw.dismiss();
      }
    }
  });

  popWiw.setTitle("回复" + nickname);
  popWiw.showAtLocation(refreshLayout, Gravity.BOTTOM
      | Gravity.CENTER_HORIZONTAL, 0, 0);
}

对应的edit_data xml布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="55dp" >

<RelativeLayout
  android:layout_width="match_parent"
  android:layout_height="44dp"
  android:background="@drawable/bg_search"
  android:gravity="clip_vertical"
  android:orientation="vertical"
  android:paddingLeft="12dp"
  android:paddingRight="12dp" >

  <com.myapp.view.ClearEditText
    android:id="@+id/edt_content"
    android:layout_width="match_parent"
    android:layout_height="55dp"
    android:layout_alignParentLeft="true"
    android:layout_centerVertical="true"
    android:layout_marginBottom="5dp"
    android:layout_marginRight="65dp"
    android:layout_marginTop="5dp"
    android:background="@drawable/edittext_back"
    android:focusable="true"
    android:hint="说点什么..."
    android:paddingLeft="10dp"
    android:imeOptions="actionSend"
    android:paddingRight="10dp"
    android:textColor="@color/top_bg_shadow"
    android:textSize="@dimen/NormalTextSize" >
  </com.myapp.view.ClearEditText>

  <Button
    android:id="@+id/btn_send"
    android:layout_width="60dp"
    android:layout_height="34dp"
    android:layout_alignParentRight="true"
    android:layout_centerVertical="true"
    android:background="@drawable/btn_send_rounded"
    android:enabled="false"
    android:paddingLeft="12dp"
    android:paddingRight="12dp"
    android:text="@string/send"
    android:textColor="@color/white"
    android:textSize="@dimen/NormalTextSize" />
</RelativeLayout>

</LinearLayout>

对于ClearEditText，应该都不陌生，

public class ClearEditText extends EditText implements
  OnFocusChangeListener, TextWatcher {
/**
 * 删除按钮的引用
 */
private Drawable mClearDrawable; 

public ClearEditText(Context context) {
  this(context, null);
} 

public ClearEditText(Context context, AttributeSet attrs) {
  //这里构造方法也很重要，不加这个很多属性不能再XML里面定义
  this(context, attrs, android.R.attr.editTextStyle);
} 

public ClearEditText(Context context, AttributeSet attrs, int defStyle) {
  super(context, attrs, defStyle);
  init();
}

private void init() {
  //获取EditText的DrawableRight,假如没有设置我们就使用默认的图片
  mClearDrawable = getCompoundDrawables()[2];
  if (mClearDrawable == null) {
    mClearDrawable = getResources()
        .getDrawable(R.drawable.icon_edit_del);
  }
  mClearDrawable.setBounds(0, 0, mClearDrawable.getIntrinsicWidth(), mClearDrawable.getIntrinsicHeight());
  setClearIconVisible(false);
  setOnFocusChangeListener(this);
  addTextChangedListener(this);
} 

/**
 * 因为我们不能直接给EditText设置点击事件，所以我们用记住我们按下的位置来模拟点击事件
 * 当我们按下的位置 在 EditText的宽度 - 图标到控件右边的间距 - 图标的宽度 和
 * EditText的宽度 - 图标到控件右边的间距之间我们就算点击了图标，竖直方向没有考虑
 */
@Override
public boolean onTouchEvent(MotionEvent event) {
  if (getCompoundDrawables()[2] != null) {
    if (event.getAction() == MotionEvent.ACTION_UP) {
      boolean touchable = event.getX() > (getWidth()
          - getPaddingRight() - mClearDrawable.getIntrinsicWidth())
          && (event.getX() < ((getWidth() - getPaddingRight())));
      if (touchable) {
        this.setText("");
      }
    }
  } 

  return super.onTouchEvent(event);
} 

/**
 * 当ClearEditText焦点发生变化的时候，判断里面字符串长度设置清除图标的显示与隐藏
 */
@Override
public void onFocusChange(View v, boolean hasFocus) {
  if (hasFocus) {
    setClearIconVisible(getText().length() > 0);
  } else {
    setClearIconVisible(false);
  }
} 

/**
 * 设置清除图标的显示与隐藏，调用setCompoundDrawables为EditText绘制上去
 * @param visible
 */
protected void setClearIconVisible(boolean visible) {
  Drawable right = visible ? mClearDrawable : null;
  setCompoundDrawables(getCompoundDrawables()[0],
      getCompoundDrawables()[1], right, getCompoundDrawables()[3]);
} 

/**
 * 当输入框里面内容发生变化的时候回调的方法
 */
@Override
public void onTextChanged(CharSequence s, int start, int count,
    int after) {
  setClearIconVisible(s.length() > 0);
} 

@Override
public void beforeTextChanged(CharSequence s, int start, int count,
    int after) { 

} 

@Override
public void afterTextChanged(Editable s) { 

} 

/**
 * 设置晃动动画
 */
public void setShakeAnimation(){
  this.setAnimation(shakeAnimation(5));
}

/**
 * 晃动动画
 * @param counts 1秒钟晃动多少下
 * @return
 */
public static Animation shakeAnimation(int counts){
  Animation translateAnimation = new TranslateAnimation(0, 10, 0, 0);
  translateAnimation.setInterpolator(new CycleInterpolator(counts));
  translateAnimation.setDuration(1000);
  return translateAnimation;
}
}

一些icon 及圆角背景就不展示了。

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