动态在主布局中底部添加布局

    public void addView() {
        layout = new LinearLayout(this);
        View view = this.getLayoutInflater().inflate(
                R.layout.dialog_content_layout, null);
        layout.addView(view);
        layout.setGravity(Gravity.BOTTOM);
        FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
                FrameLayout.LayoutParams.WRAP_CONTENT,
                FrameLayout.LayoutParams.WRAP_CONTENT);
        params.bottomMargin = 0;
        params.gravity = Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL;
        addContentView(layout, params);

        view.findViewById(R.id.oneButton).setVisibility(View.GONE);
        view.findViewById(R.id.dialog_icon).setBackgroundResource(
                R.drawable.down);
        dailog_word = (TextView) view.findViewById(R.id.dailog_word);
        dailog_word.setVisibility(View.VISIBLE);
        dailog_word.setText("收到来自xxxx的数据，是否接收?");
        
        btnCancel = (Button) view.findViewById(R.id.btnCancel);
        btnOK = (Button) view.findViewById(R.id.btnOK);
        
        btnCancel.setOnClickListener(this);
        btnOK.setOnClickListener(this);

    }

添加的布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:background="@color/white"
    android:gravity="bottom|center"
    android:orientation="vertical" >

    <View
        android:layout_width="fill_parent"
        android:layout_height="1.0dip"
        android:background="@color/line_color" />

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_margin="10.0dip"
        android:gravity="center"
        android:orientation="vertical" >

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="20.0dip"
            android:layout_marginTop="10.0dip"
            android:gravity="center"
            android:orientation="horizontal" >

            <ImageView
                android:id="@+id/dialog_icon"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/error"/>

            <LinearLayout
                android:id="@+id/image_dailog_word_layout"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="20.0dip"
                android:orientation="vertical"
                android:visibility="gone" >

                <TextView
                    android:id="@+id/image_dailog_word_small"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="@color/common_gray"
                    android:textSize="18.0sp" />

                <TextView
                    android:id="@+id/image_dailog_word_big"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="@color/common_blue"
                    android:textSize="25.0sp" />
            </LinearLayout>
        </LinearLayout>

        <LinearLayout
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:gravity="center_horizontal"
            android:orientation="horizontal" >

            <TextView
                android:id="@+id/dailog_word"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_horizontal"
                android:layout_marginLeft="10.0dip"
                android:layout_marginRight="10.0dip"
                android:textColor="@color/common_gray"
                android:textSize="18.0sp" />
        </LinearLayout>
    </LinearLayout>

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical" >

        <LinearLayout
            android:id="@+id/twoButtonLayout"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_gravity="center_horizontal"
            android:layout_marginBottom="13.0dip"
            android:paddingLeft="2.0dip"
            android:paddingRight="2.0dip"
            android:visibility="visible" >

            <Button
                android:id="@+id/btnCancel"
                android:layout_width="0.0dip"
                android:layout_height="60.0dip"
                android:layout_gravity="center_vertical"
                android:layout_marginLeft="20.0dip"
                android:layout_weight="0.5"
                android:background="@drawable/dialog_left_btn"
                android:minWidth="100.0dip"
                android:text="@string/cancel"
                android:textColor="@color/common_gray"
                android:textSize="20.0sp" />

            <Button
                android:id="@+id/btnOK"
                android:layout_width="0.0dip"
                android:layout_height="60.0dip"
                android:layout_gravity="center_vertical"
                android:layout_marginRight="20.0dip"
                android:layout_weight="0.5"
                android:background="@drawable/dialog_right_btn"
                android:minWidth="100.0dip"
                android:text="@string/confirm"
                android:textColor="@color/common_gray"
                android:textSize="20.0sp" />
        </LinearLayout>

        <Button
            android:id="@+id/oneButton"
            android:layout_width="fill_parent"
            android:layout_height="52.0dip"
            android:layout_gravity="center_horizontal"
            android:layout_marginBottom="13.0dip"
            android:layout_marginLeft="23.0dip"
            android:layout_marginRight="20.0dip"
            android:background="@drawable/btn_big_white"
            android:text="@string/cancel"
            android:textColor="@color/common_gray"
            android:textSize="20.0sp"
            android:visibility="visible" />

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="0.0dip"
            android:layout_gravity="center_horizontal" >

            <View
                android:layout_width="0.0dip"
                android:layout_height="0.0dip"
                android:layout_weight="1.0" />
        </LinearLayout>
    </LinearLayout>

</LinearLayout>