使用ViewPager+ActivityGroup实现划屏，同时切换activity
最近几天，项目用到了划屏技术，研究了好几天，终于搞出来了，现写个博客记录一下。
使用ViewPager+ActivityGroup实现划屏，同时可以切换activity，因为，我们这个项目是后期维护添加功能。现在我使用的方法，没有改动任何原来代码，只是添加了划屏代码。
上代码:
Whatsnews_viewpager.xml:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout 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/whatsnew_viewpager"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center" >
<android.support.v4.view.PagerTitleStrip
android:id="@+id/pagertitle"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_gravity="bottom"
android:background="#0000"
android:textColor="#ffff" />
</android.support.v4.view.ViewPager>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_marginBottom="30dp"
android:gravity="center_horizontal" >
<ImageView
android:id="@+id/page0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scaleType="matrix"
android:src="@drawable/page_now" />
<ImageView
android:id="@+id/page1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:scaleType="matrix"
android:src="@drawable/page" />
<ImageView
android:id="@+id/page2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:scaleType="matrix"
android:src="@drawable/page" />
<ImageView
android:id="@+id/page3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:scaleType="matrix"
android:src="@drawable/page" />
<ImageView
android:id="@+id/page4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:scaleType="matrix"
android:src="@drawable/page" />
<ImageView
android:id="@+id/page5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:scaleType="matrix"
android:src="@drawable/page" />
</LinearLayout>
</LinearLayout>
</FrameLayout>
act1.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" >
<RelativeLayout
android:id="@+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="100dp"
android:background="#ffffff"
android:gravity="center"
android:orientation="vertical" >
<Button
android:id="@+id/textView1"
android:layout_width="500dp"
android:layout_height="300dp"
android:text="Signin"
android:textColor="#000000"
android:textAppearance="?android:attr/textAppearanceLarge" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
act2.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" >
<RelativeLayout
android:id="@+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:id="@+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="100dp"
android:background="#ADFF2F"
android:gravity="center"
android:orientation="vertical" >
<Button
android:id="@+id/textView2"
android:layout_width="500dp"
android:layout_height="300dp"
android:text="Register"
android:textColor="#000000"
android:textAppearance="?android:attr/textAppearanceLarge" />
</LinearLayout>
</RelativeLayout>
</LinearLayout>
还有几个xml不贴了，都是很简单的布局。
现在贴出主功能代码Whatsnew.java(activity)
package com.example.android_demo6;
import java.util.ArrayList;
import android.os.Bundle;
import android.app.Activity;
import android.app.ActivityGroup;
import android.content.Intent;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.PagerTitleStrip;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.test.ActivityTestCase;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.widget.ImageView;
public class Whatsnew extends ActivityGroup {
private ViewPager mViewPager;
private ImageView mPage0;
private ImageView mPage1;
private ImageView mPage2;
private ImageView mPage3;
private ImageView mPage4;
private ImageView mPage5;
private int currIndex = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.whatsnew_viewpager);
mViewPager = (ViewPager)findViewById(R.id.whatsnew_viewpager);
mViewPager.clearAnimation();
mViewPager.setOnPageChangeListener(new MyOnPageChangeListener());
mPage0 = (ImageView)findViewById(R.id.page0);
mPage1 = (ImageView)findViewById(R.id.page1);
mPage2 = (ImageView)findViewById(R.id.page2);
mPage3 = (ImageView)findViewById(R.id.page3);
mPage4 = (ImageView)findViewById(R.id.page4);
mPage5 = (ImageView)findViewById(R.id.page5);
//将要分页显示的View装入数组中
LayoutInflater mLi = LayoutInflater.from(this);
View view1 = mLi.inflate(R.layout.whats1, null);
View view2 = mLi.inflate(R.layout.whats2, null);
View view3 = mLi.inflate(R.layout.whats3, null);
View view4 = mLi.inflate(R.layout.whats4, null);
@SuppressWarnings("deprecation")
View view5 = getLocalActivityManager().startActivity("activity1", new Intent(Whatsnew.this, ActivityOne.class)).getDecorView();
@SuppressWarnings("deprecation")
View view6 = getLocalActivityManager().startActivity("activity2", new Intent(Whatsnew.this, ActivityTwo.class)).getDecorView();
// View view5 = mLi.inflate(R.layout.whats5, null);
// View view6 = mLi.inflate(R.layout.act1, null);
//每个页面的view数据
final ArrayList<View> views = new ArrayList<View>();
views.add(view1);
views.add(view2);
views.add(view3);
views.add(view4);
views.add(view5);
views.add(view6);
//填充ViewPager的数据适配器
PagerAdapter mPagerAdapter = new PagerAdapter() {
@Override
public boolean isViewFromObject(View arg0, Object arg1) {
return arg0 == arg1;
}
@Override
public int getCount() {
return views.size();
}
@Override
public void destroyItem(View container, int position, Object object) {
((ViewPager)container).removeView(views.get(position));
}
@Override
public Object instantiateItem(View container, int position) {
((ViewPager)container).addView(views.get(position));
return views.get(position);
}
};
mViewPager.setAdapter(mPagerAdapter);
}//OnCreate
public class MyOnPageChangeListener implements OnPageChangeListener {
@Override
public void onPageSelected(int arg0) {
switch (arg0) {
case 0:
mPage0.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage1.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;
case 1:
mPage1.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage0.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage2.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;
case 2:
mPage2.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage1.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage3.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;
case 3:
mPage3.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage4.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage2.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;
case 4:
mPage4.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage3.setImageDrawable(getResources().getDrawable(R.drawable.page));
mPage5.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;
case 5:
mPage5.setImageDrawable(getResources().getDrawable(R.drawable.page_now));
mPage4.setImageDrawable(getResources().getDrawable(R.drawable.page));
break;
}
currIndex = arg0;
//animation.setFillAfter(true);// True:图片停在动画结束位置
//animation.setDuration(300);
//mPageImg.startAnimation(animation);
}
@Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int arg0) {
}
}
/* public void startbutton(View v) {
Intent intent = new Intent();
intent.setClass(Whatsnew.this,WhatsnewDoor.class);
startActivity(intent);
this.finish();
} */
}
ActivityOne.java
package com.example.android_demo6;
import android.app.Activity;
import android.app.ActivityGroup;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class ActivityOne extends ActivityGroup {
private Button button_1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = inflater.inflate(R.layout.act1, null);
this.setContentView(v);
button_1 = (Button) findViewById(R.id.textView1);
ButtonClickListener();
Log.d("ActGroupDemo", "Act1 onCreate()");
}
private void ButtonClickListener() {
button_1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(ActivityOne.this, "第一个界面", Toast.LENGTH_SHORT).show();;
}
});
}
}
package com.example.android_demo6;
import android.app.Activity;
import android.app.ActivityGroup;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class ActivityTwo extends ActivityGroup {
private Button button_2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = inflater.inflate(R.layout.act2, null);
this.setContentView(v);
button_2 = (Button) findViewById(R.id.textView2);
ButtonClickListener();
Log.d("ActGroupDemo", "Act2 onCreate()");
}
private void ButtonClickListener() {
button_2.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(ActivityTwo.this, "第二个界面", Toast.LENGTH_SHORT).show();;
}
});
}
}
要完整代码找我啊。