ViewPager+布局xml(View)

ViewPager+布局xml(View)

效果如图：

代码如下：
新建三个布局xml
第一个：activity_linearlayout.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent">    <TextView        android:background="#cf6"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:text="我是B界面"        /></LinearLayout>

第二个：activity_framelayout.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent">    <TextView        android:background="#fc7"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:text="我是C界面"        /></LinearLayout>

第三个：activity_relativelayout.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical" android:layout_width="match_parent"    android:layout_height="match_parent"><TextView    android:background="#ff6"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:text="我是A界面"    /></RelativeLayout>

java代码：
新建一个java类：MainActivity.java

package androidstudio.myapplication;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {private  int Layouts[] = {R.layout.activity_linearlayout,R.layout.activity_framelayout,R.layout.activity_relativelayout};    private ViewPager vp_main_viewPage;    private List<View> view_list = new ArrayList<>();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        vp_main_viewPage = (ViewPager) findViewById(R.id.vp_main_viewPage);        for (int i = 0; i <Layouts.length ; i++) {            View v = getLayoutInflater().inflate(Layouts[i],null);            view_list.add(v);        }        vp_main_viewPage.setAdapter(new MyAdapter());    }    class MyAdapter extends PagerAdapter{        @Override        public int getCount() {            return Layouts.length;        }        @Override        public boolean isViewFromObject(View view, Object object) {            return view==object;        }        @Override        public Object instantiateItem(ViewGroup container, int position) {            View v = view_list.get(position);            container.addView(v);            return v;        }        @Override        public void destroyItem(ViewGroup container, int position, Object object) {            View v = view_list.get(position);            container.removeView(v);        }    }}