手机安全卫士01

手机安全卫士day01

今天实现效果如下

目标实现：
1.开始动画，欢迎界面 done
2.初始导航 done
3.版本信息没做。。。
每个应用在第一打开时都有个欢迎动画，那我们今天就来实现它

第一步，实现欢迎动画

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.safephone.WelcomeMainActivity" >
<ImageView
    android:id="@+id/welcome_iv"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_centerInParent="true"
    android:src="@drawable/ic_sheep" />
</RelativeLayout>

目标：边旋转边放大
有三个动画 旋转0-360 缩放0-1 透明度 0-1

public class WelcomeMainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_main);
    ImageView imageView = (ImageView) findViewById(R.id.welcome_iv);
    /**
     * animation conbine
     */
    AnimationSet set = new AnimationSet(false);
    // 边旋转边放大
    RotateAnimation rotateAnimation = new RotateAnimation(0,360, Animation.RELATIVE_TO_SELF, 0.5f,
            Animation.RELATIVE_TO_SELF, 0.5f);
    rotateAnimation.setDuration(3000);// 设置时间为两秒
    rotateAnimation.setFillAfter(true);// 设置最终状态为填充效果
    set.addAnimation(rotateAnimation);// 将旋转动画添加到动画集合中
    /**
     * 
     */
    ScaleAnimation scaleAnimation=new ScaleAnimation(
            0, 1, 
            0, 1, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
    rotateAnimation.setDuration(3000);// 
    rotateAnimation.setFillAfter(true);// 设置最终状态为填充效果
    set.addAnimation(scaleAnimation);// 将缩放动画添加到动画集合中
    /**
     * 第三个动画来自xml
     */
    Animation animation=AnimationUtils.loadAnimation(this, R.anim.alpha);
    set.addAnimation(animation);// 将透明度动画添加到动画集合中
    set.setAnimationListener(new AnimationListener() {
        //begin
        @Override
        public void onAnimationStart(Animation animation) {
            // TODO Auto-generated method stub

        }
        //repeat
        @Override
        public void onAnimationRepeat(Animation animation) {
            // TODO Auto-generated method stub

        }
        //end
        @Override
        public void onAnimationEnd(Animation animation) {
            // TODO Auto-generated method stub
            ToastUtils.show(getApplicationContext(), "欢迎来到德莱联盟");
            //the animation end enter the guideActivity
            Intent intent=new Intent();
            intent.setClass(getApplicationContext(), GuideActivity.class);
            startActivity(intent);
            finish();
        }
    });
    imageView.startAnimation(set);      
}

}

效果如下

第二步，实现导航的轮播效果

主要代码

public class ActivityGuide extends Activity {
private List<ImageView> mPageList;
private Context context;
private Button btn;

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.guidelayout);
    ViewPager mGuideViewPager = (ViewPager) findViewById(R.id.viewpager);
    btn = (Button) findViewById(R.id.guide_enter_btn);
    // page list
    context = this;
    // init page
    initpage();
    // 2.initdata by adapter
    mGuideViewPager.setAdapter(new PagerAdapter() {
        // is the view from object or from fragment
        @Override
        public boolean isViewFromObject(View arg0, Object arg1) {
            // TODO Auto-generated method stub
            return arg0 == arg1;
        }

        // view items count
        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return mPageList == null ? 0 : mPageList.size();
        }

        // DESTORY the view items
        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
            // TODO Auto-generated method stub
            container.removeView(mPageList.get(position));
        }

        /**
         * init view items pass position container ViewGroup ViewPager
         */
        @Override
        public Object instantiateItem(ViewGroup container, int position) {
            // TODO Auto-generated method stub
            container.addView(mPageList.get(position));
            return mPageList.get(position);
        }
    });
    // 3、对viewpage进行监听
    mGuideViewPager.addOnPageChangeListener(new OnPageChangeListener() {
        //当页面被选择则回调该方法
        @Override
        public void onPageSelected(int position) {
            if(position==(mPageList.size()-1)){
                btn.setVisibility(View.VISIBLE);
            }else{
                btn.setVisibility(View.GONE);
            }
        }
        //页面滚动回调该方法
        @Override
        public void onPageScrolled(int arg0, float arg1, int arg2) {

        }
        //当页面滚动状态改变
        @Override
        public void onPageScrollStateChanged(int arg0) {

        }
    });
}

//
private void initpage() {
    // TODO Auto-generated method stub
    mPageList = new ArrayList<ImageView>();
    ImageView imageView = new ImageView(context);
    imageView.setBackgroundResource(R.drawable.guide_1);
    mPageList.add(imageView);
    ImageView imageView2 = new ImageView(context);
    imageView2.setBackgroundResource(R.drawable.guide_2);
    mPageList.add(imageView2);
    ImageView imageView3 = new ImageView(context);
    imageView3.setBackgroundResource(R.drawable.guide_3);
    mPageList.add(imageView3);

}

public void entersystem(View view) {
    Intent intent = new Intent(this, SplashActivity.class);
    startActivity(intent);
    finish();
}
}

Viewpage是viewgroup的子类
能实现水平的滑动效果
来看布局文件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" >

    <!-- ViewPager -->

    <android.support.v4.view.ViewPager  android:id="@+id/viewpager" android:layout_width="match_parent" android:layout_height="match_parent" />

    <LinearLayout  android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_alignBottom="@id/viewpager" android:background="#44000000" android:gravity="center" android:orientation="vertical" android:padding="5dip" >

        <!-- Banner的文字描述 -->

        <TextView  android:id="@+id/tv_banner_text_desc" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="@android:color/white" />

        <!-- 小圆点的父控件 -->

        <LinearLayout  android:id="@+id/ll_dot_group" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_marginTop="5dip" android:gravity="center_horizontal" android:orientation="horizontal" >
        </LinearLayout>
    </LinearLayout>

    <Button  android:id="@+id/guide_enter_btn" android:layout_width="135dp" android:layout_height="45dp" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:gravity="center" android:visibility="gone" android:onClick="entersystem" android:background="@drawable/guide_btn_seletor" android:textColor="@color/guide_btn_color_seletor" android:layout_marginBottom="55dp" android:text="开始体验" />

</RelativeLayout>

毕竟是项目 细节不是太好说的清楚，主要是看大概然后跟着流程一步一步来