android 第一次启动滑动界面

android 第一次启动滑动界面

一.滑动界面：

第一次启动时除了启动动画外，可能还有着滑动功能介绍界面，现在记录一下这种界面的实现方式，接着上篇启动动画之后的效果附加上。

效果图：

 

界面：

 

public class SlideActivity extends Activity{
		
		private ViewPager mViewPager;	
		private ImageView mPage0;
		private ImageView mPage1;
		private ImageView mPage2;
		private ImageView mPage3;
		private ImageView mPage4;
		private ImageView mPage5;
			
	    @Override
	    public void onCreate(Bundle savedInstanceState) {
	        super.onCreate(savedInstanceState);
	        setContentView(R.layout.whatsnew_viewpager);
	        mViewPager = (ViewPager)findViewById(R.id.whatsnew_viewpager);        
	        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);
	        View view5 = mLi.inflate(R.layout.whats5, null);
	        View view6 = mLi.inflate(R.layout.whats6, null);
	        
	        //每个页面的view数据
	        final ArrayList views = new ArrayList();
	        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);
	    }    
	    

	    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;
				}
				//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(SlideActivity.this,TestActivity.class);
			startActivity(intent);
			this.finish();
	      } 
}

 

如果想要实现第一次启动显示，用SharedPreferences存储下信息就行，每次启动判断下，就ok了。