Android 手势滑动切换activity

效果图:

Android 手势滑动切换activity_第1张图片

main.xml:

<?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="fill_parent"
    android:orientation="vertical" >

    <android.support.v4.view.ViewPager
        android:id="@+id/main_viewpager"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center" >
    </android.support.v4.view.ViewPager>

</LinearLayout>
common.xml:

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

    <TextView 
        android:gravity="center_horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="OnlyC"
        android:textSize="25sp"
        android:textColor="@android:color/black"
        />

</LinearLayout>
two.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/w01"
    android:gravity="center"
    android:orientation="vertical" >

    <TextView 
        android:gravity="center_horizontal"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="TwoC"
        android:textSize="25sp"
        android:textColor="@android:color/white"
        />

</LinearLayout>
three.xml  four.xml类似,不再列出

MainActivity.java:

package misc.demo;

import java.util.ArrayList;

import android.app.ActivityGroup;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.view.View;
import android.view.Window;

public class MainActivity extends ActivityGroup {
	private View oneView;
	private View twoView;
	private View threeView, fourView;
	private ArrayList<View> views;
	private ViewPager mViewPager;// 多页面滑动切换效果

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.main);
		views = new ArrayList<View>();
		mViewPager = (ViewPager) findViewById(R.id.main_viewpager);
		mViewPager.setOnPageChangeListener(new OnPageChangeListener() {

			@Override
			public void onPageScrollStateChanged(int arg0) {
				// TODO 自动生成的方法存根
				System.out.println("onPageScrollStateChanged");
			}

			@Override
			public void onPageScrolled(int arg0, float arg1, int arg2) {
				// TODO 自动生成的方法存根
				System.out.println("onPageScrolled");
			}

			@Override
			public void onPageSelected(int arg0) {
				// TODO 自动生成的方法存根
				System.out.println("onPageSelected");
			}

		});
		initView();
		addViews();

		PagerAdapter mPagerAdapter = new PagerAdapter() {
			// 判断是否由对象生成界面
			@Override
			public boolean isViewFromObject(View arg0, Object arg1) {
				return arg0 == arg1;
			}

			// 获取当前窗体界面数
			@Override
			public int getCount() {
				System.out.println("getCount" + views.size());
				return views.size();
			}

			// 销毁position位置的界面
			@Override
			public void destroyItem(View container, int position, Object object) {
				((ViewPager) container).removeView(views.get(position));
				System.out.println("destroyItem" + position);
			}

			// 初始化position位置的界面
			@Override
			public Object instantiateItem(View container, int position) {
				((ViewPager) container).addView(views.get(position));
				System.out.println("instantiateItem" + position);
				return views.get(position);
			}
		};

		mViewPager.setAdapter(mPagerAdapter);
	}

	/**
	 * 将相应的Activity转换成View对象
	 */
	public void initView() {
		oneView = getViews(OneActivity.class, "one");
		twoView = getViews(TwoActivity.class, "one");
		threeView = getViews(ThreeActivity.class, "one");
		fourView = getViews(FourActivity.class, "one");
	}

	/**
	 * 将转换成View后的Activity添加到列表中
	 */
	public void addViews() {
		views.add(oneView);
		views.add(twoView);
		views.add(threeView);
		views.add(fourView);
	}

	/**
	 * 获取要跳转的Activity对应的View
	 * 
	 * @param cls目的Activity
	 * @param pageid目的Activity的唯一id
	 * @return 返回一个View类型的变量
	 */
	public View getViews(Class<?> cls, String pageid) {
		return getLocalActivityManager().startActivity(
				pageid,
				new Intent(MainActivity.this, cls)
						.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY))
				.getDecorView();
	}
}
OneActivity.java:

package misc.demo;

import android.app.Activity;
import android.os.Bundle;

public class OneActivity extends Activity {
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.common);
	}
}
完整工程代码:http://download.csdn.net/detail/u014071669/7187085

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