android美化短信聊天记录使得输入长短信不顶格

发送短信界面:

<?xml version="1.0" encoding="utf-8"?>
<!-- 發送的短信:右邊 -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="right"
    android:orientation="vertical" >
	<!-- 包含占位框和收到短信框 -->
    <LinearLayout
        android:id="@id/sms_detail_send_right_layout"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right" >
	<!-- 占位框 -->
        <TextView
            android:id="@id/sms_detail_send_placeholder"
            android:layout_width="30dp"
            android:layout_height="wrap_content" />
<!-- 发出的短信 -->
        <TextView
            android:id="@id/sms_detail_send_right_message"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="right"
            android:background="@drawable/sms_detail_content_right_bg"
            android:gravity="center_vertical"
            android:textColor="#000000" />
    </LinearLayout>

<!-- 显示日期 -->
    <TextView
        android:id="@id/sms_detail_send_right_date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right"
        />

</LinearLayout>

接收短信界面:

<?xml version="1.0" encoding="utf-8"?>
<!-- 收到的短信:左邊 -->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="left"
    android:orientation="vertical" >

    <!-- 短信接收日期 -->

    <TextView
        android:id="@id/sms_detail_receive_left_date"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/sms_detail_receive_left_layout" />
    <!-- 占位框 -->

    <TextView
        android:id="@id/sms_detail_receive_placeholder"
        android:layout_width="30dp"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignRight="@id/sms_detail_receive_left_message" />
    <!-- 用LinearLayout包裹发出的短信框 -->

    <LinearLayout
        android:id="@id/sms_detail_receive_left_layout"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@id/sms_detail_receive_placeholder" >

        <!-- 发出的短信 -->

        <TextView
            android:id="@id/sms_detail_receive_left_message"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/sms_detail_content_left_bg"
            android:gravity="center_vertical"
            android:text="s"
            android:textColor="#000000" />
    </LinearLayout>

</RelativeLayout>

效果:

s wqnmbg弄了一个晚上就这一个破效果,搞死我了