Android实现新闻项目
AndroidAndroid 实现新闻项目实现新闻项目首先是首页面,欢迎页实现 旋转 缩放 渐变 的效果 ,三个引导页实现侧滑的同时底部的小点跟随侧滑移动.? 1GuideActivity.java ? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34package com.example.lenovo.myx2_d1;import android.app.Activity; import android.content.Context; import android.media.Image; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.view.ViewPager; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.RelativeLayout; import java.util.ArrayList; import java.util.List;/* Created by LENOVO on 2018/08/01.*/public class GuideActivity extends Activity private LinearLayout dotLayout;private ImageView redDot;private ViewPager viewPager;private int imgs = R.drawable.guide_1, R.drawable.guide_2, R.drawable.guide_3;private int leftMargin =0 ;Overrideprotected void onCreate(Nullable Bundle savedInstanceState) super.onCreate(savedInstanceState);setContentView(R.layout.guide_activity);leftMargin = dip2px(this,10f);35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78initView();initLoad();initViewPager();private List imgViews = new ArrayList(); imgList.addAll(imgs);Overridepublic int getCount() return imgList.size();Overridepublic boolean isViewFromObject(NonNull View view, NonNull Object object) return view=object;NonNull / 添加子 view=imageview，到 containerOverridepublic Object instantiateItem(NonNull ViewGroup container, int position) ImageView img= imgList.get(position);container.addView(img);return img;Overridepublic void destroyItem(NonNull ViewGroup container, int position, 50 51 52NonNull Object object) container.removeView(imgList.get(position); ? 1SplashActivity.java ? 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2package com.example.lenovo.myx2_d1;import android.content.Intent; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.animation.AlphaAnimation; import android.view.animation.Animation; import android.view.animation.AnimationSet; import android.view.animation.RotateAnimation; import android.view.animation.ScaleAnimation; import android.widget.RelativeLayout;/* Created by LENOVO on 2018/08/01.*/public class SplashActivity extends AppCompatActivity private RelativeLayout rootLayout;Overrideprotected void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();/ 实现 旋转 缩放 渐变的效果 金星棋牌 http:/www.lrnfk.comAlphaAnimation alphaAnimation = new AlphaAnimation(0,1);alphaAnimation.setFillAfter(true);ScaleAnimation scaleAnimation=new ScaleAnimation(0,1,0,1,ScaleAnimation.RELATIVE_TO_SELF,0.5f,ScaleAnima tion.RELATIVE_TO_SELF,0.5f);scaleAnimation.setFillAfter(true);2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4RotateAnimation rotateAnimation=new RotateAnimation(0,360,RotateAnimation.RELATIVE_TO_SELF,0.5f,RotateAnim ation.RELATIVE_TO_SELF,0.5f);rotateAnimation.setFillAfter(true);388 棋牌 http:/www.455573.comAnimationSet animationSet = new AnimationSet(false);animationSet.addAnimation(alphaAnimation);animationSet.addAnimation(scaleAnimation);animationSet.addAnimation(rotateAnimation);animationSet.setDuration(2000);rootLayout.startAnimation(animationSet);animationSet.setAnimationListener(new Animation.AnimationListener() Override public void onAnimationStart(Animation animation) Override public void onAnimationEnd(Animation animation) Intent intent = new Intent(SplashActivity.this,GuideActivity.class);startActivity(intent);finish(); Override public void onAnimationRepeat(Animation animation) );private void initView()rootLayout = findViewById(R.id.root_layout);private void initLoad()4 5 4 6 4 7 4 8 4 9 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 0 6 1 6 2 6 3 6 4 6 5 6 6 6 7 6 8 6 9 7 0 7 1 7 2 7 3 7 4 7 5 7 6 7 7以下是布局文件activity_main.xml? 1 2 3 4 5content_main.xml? 1 2 3 4 5guide_activity.xml? 1 2 3 4 5 6 7 8 9 10 11 12values/style.xml? 1 2 3 4 5 6 7 8 9 10 11color/colorPrimarycolor/colorPrimaryDarkcolor/colorAccentfalsetrueAndroidManifest.xml
