Android 动态的添加xml布局

1 在res/layout 中新建一个xxx.xml布局文件

2.在新建的布局文件中填写想要的布局内容（如下）

<?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="match_parent">

        android:id="@+id/banner"

        android:background="#000000"

        android:layout_width="320dp"

        android:layout_height="50dp"

        android:layout_alignParentBottom="true"

        android:layout_centerHorizontal="true"/>

</RelativeLayout>

3.通过下面的方式完成

public class MainActivityextends AppCompatActivity {

    private ViewmBanner =null;

    @Override

    protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
    }

    public void buttonOnClick(View view) {
        if (mBanner==null){
            LayoutInflater inflater = LayoutInflater.from(MainActivity.this);
            LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                    LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
            mBanner = inflater.inflate(R.layout.banner_layout, null);
            this.addContentView(mBanner,lp);
        }else {
            if (mBanner.getVisibility()==View.INVISIBLE){
                mBanner.setVisibility(View.VISIBLE);
            }else {
                mBanner.setVisibility(View.INVISIBLE);
            }
        }
    }
}