java - 在android中显示布局1在左边，布局2在右边

Question

这个问题已经有答案了:

create a chatView layout in android (4 个回答)

已关闭 5 年前。

在android中，我试图根据消息的来源来更改布局。如果消息来 self ，则在右侧显示布局 mymessage.xml，否则在左侧显示 message.xml。我使用了 if 条件，但我不知道如何在右侧显示一个布局，在左侧显示第二个布局，

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

    // TODO
    View messageView = null;

    // Get a reference to the LayoutInflater. This helps construct the
    // view from the layout file
    LayoutInflater inflater = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);


    // Change the layout based on who the message is from
    if (messages.get(position).fromMe()) {


        messageView = inflater.inflate(R.layout.mymessage , parent, false);

        //initialization of 2 textView, message and time
        TextView timeView = (TextView) messageView.findViewById(R.id.mytimeTextView);
        timeView.setText(messages.get(position).getTime());

        TextView msgView = (TextView) messageView.findViewById(R.id.mymessageTextView);
        msgView.setText(messages.get(position).getMessage());
    } else {


        messageView = inflater.inflate(R.layout.message , parent, true);

        //initialization of 2 textView, message and time
        TextView timeView = (TextView) messageView.findViewById(R.id.timeTextView);
        timeView.setText(messages.get(position).getTime());

        TextView msgView = (TextView) messageView.findViewById(R.id.messageTextView);
        msgView.setText(messages.get(position).getMessage());

    }

    return messageView;
    }

Answer 1

尝试使用 mymessage.xml 的布局

<?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">

<TextView
    android:id="@+id/mytimeTextView"
    android:alpha="0.5"
    android:layout_alignParentRight="true"
    android:text="5:00 pm"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
<TextView
    android:layout_below="@+id/mytimeTextView"
    android:id="@+id/mymessageTextView"
    android:layout_alignParentRight="true"
    android:text="mymessage"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
</RelativeLayout>

message.xml 也是如此

<?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">

<TextView
    android:id="@+id/timeTextView"
    android:alpha="0.5"
    android:layout_alignParentLeft="true"
    android:text="5:00 pm"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
<TextView
    android:layout_below="@+id/timeTextView"
    android:id="@+id/messageTextView"
    android:layout_alignParentLeft="true"
    android:text="yourmessage"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />
</RelativeLayout>