ViewStub

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">


    <ViewStub
        android:id="@+id/viewstub_demo_text"
        android:layout_width="wrap_content"
        android:layout_height="20dp"
        android:layout_marginLeft="5dip"
        android:layout_marginRight="5dip"
        android:layout_marginTop="10dip"
        android:layout="@layout/text"/>
    <ViewStub
        android:id="@+id/viewstub_demo_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="5dip"
        android:layout_marginRight="5dip"
        android:layout="@layout/image"/>

</LinearLayout>

<ImageView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
        android:id="@+id/viewstub_demo_imageview"
      >

</ImageView>

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <TextView
        android:id="@+id/viewstub_demo_textview"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="#aa664411"
        android:textSize="16sp"/>

</LinearLayout>

  public class MainActivity extends Activity  {
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);

            if ((((int) (Math.random() * 100)) & 0x01) == 0) {
            } else {
            }
                ViewStub stub = (ViewStub) findViewById(R.id.viewstub_demo_text);
                stub.inflate();
                TextView text = (TextView) findViewById(R.id.viewstub_demo_textview);
                text.setText("The tree of liberty must be refreshed from time to time" +
                        " with the blood of patroits and tyrants! Freedom is nothing but " +
                        "a chance to be better!");

                // to show image
                // all you have to do is inflate the ViewStub for imageview
                ViewStub stub2 = (ViewStub) findViewById(R.id.viewstub_demo_image);
                stub2.inflate();
                ImageView image = (ImageView) findViewById(R.id.viewstub_demo_imageview);
                image.setImageResource(R.mipmap.ic_launcher);

        }
    }

 

标签：findViewById,ViewStub,demo,image,viewstub,id
来源： https://www.cnblogs.com/Ocean123123/p/13891573.html