ViewPager+佈局xml(View)

ViewPager+佈局xml(View)

效果如圖：

代碼如下：
新建三個佈局xml
第一個：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>

第二個：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>

第三個：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代碼：
新建一個java類：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);
        }
    }
}