插入右侧

插入的\u左

我在应用程序中向自己发送一条消息，因为它应该显示为以绿色气泡发送消息，然后在下面以左侧（蓝色气泡）接收消息。
但在上面的图像中，消息显示在固定的位置，就像我发送消息时一样，发送消息显示在右上角（绿色气泡），接收到的消息显示在下面（蓝色气泡）
提前谢谢

我要把它当作

you2

你2
当我再次发送信息时，它应该显示为

you3

你3

you4

你4
chatlistadapter.java文件

public class chatList_AdapterClass extends BaseAdapter {

private Context mContext;
private ArrayList<chatList_row> mArrayList;
ViewHolder mHolder=null;

public chatList_AdapterClass(Context context, ArrayList<chatList_row> arrayList) {
    mContext = context;
    mArrayList = arrayList;
}

public class ViewHolder{

    TextView mReceivedMessage;

    LinearLayout.LayoutParams mParams;

    ViewHolder(View v){
        mReceivedMessage=(TextView)v.findViewById(R.id.ChatListMessages);

    }
}

@Override
public int getCount() {
    return mArrayList.size();
}

@Override
public Object getItem(int i) {
    return mArrayList.get(i);
}

@Override
public long getItemId(int i) {
    return 0;
}

@Override
public View getView(int position, View ConvertView, ViewGroup parent) {

    View row=ConvertView;
    if (row == null){

        LayoutInflater inflater=(LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            row=inflater.inflate(R.layout.chat_list_row,parent,false);

        mHolder=new ViewHolder(row);
        mHolder.mParams=(LinearLayout.LayoutParams)mHolder.mReceivedMessage.getLayoutParams();
        row.setTag(mHolder);
    }else {

        mHolder=(ViewHolder)row.getTag();

    }

    mHolder.mReceivedMessage.setText(mArrayList.get(position).getMessageContent());

    boolean send=mArrayList.get(position).getTypeofMessage().equals("send");
    setChatRowAppearance(send,mHolder);

    return row;
}

public  void setChatRowAppearance(boolean send,ViewHolder mHolder){

    if (send){
        mHolder.mParams.gravity= Gravity.END;
        mHolder.mReceivedMessage.setTextColor(Color.WHITE);
        mHolder.mReceivedMessage.setBackgroundResource(R.drawable.bubble2);

    }else {

        mHolder.mParams.gravity= Gravity.START;
        mHolder.mReceivedMessage.setTextColor(Color.WHITE);
        mHolder.mReceivedMessage.setBackgroundResource(R.drawable.bubble1);

    }

}

}