Android 自动滑动图像。

Android 自动滑动图像。,android,Android,我已经创建了一个演示项目来幻灯片图像。打开应用程序后,我需要图像自动滑动。我在下面发布我的代码 活动\页面\视图(主布局) PageViewActivity(主活动) 导入android.support.v4.app.Fragment; 导入android.support.v4.app.FragmentActivity; 导入android.support.v4.app.FragmentManager; 导入android.support.v4.app.FragmentPagerAdapte

我已经创建了一个演示项目来幻灯片图像。打开应用程序后,我需要图像自动滑动。我在下面发布我的代码

活动\页面\视图(主布局)


PageViewActivity(主活动)

导入android.support.v4.app.Fragment;
导入android.support.v4.app.FragmentActivity;
导入android.support.v4.app.FragmentManager;
导入android.support.v4.app.FragmentPagerAdapter;
导入android.support.v4.view.PagerAdapter;
导入android.support.v4.view.ViewPager;
导入android.os.Bundle;
导入java.util.ArrayList;
导入java.util.List;
公共类PageViewActivity扩展了FragmentActivity{
MyPageAdapter-pageAdapter;
查看寻呼机;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity\u page\u视图);
List fragments=getFragments();
pageAdapter=新的MyPageAdapter(getSupportFragmentManager(),片段);
pager=(ViewPager)findViewById(R.id.ViewPager);
寻呼机设置适配器(pageAdapter);
}
私有列表getFragments(){
List fList=new ArrayList();
add(MyFragment.newInstance(1));
add(MyFragment.newInstance(2));
add(MyFragment.newInstance(3));
add(MyFragment.newInstance(4));
add(MyFragment.newInstance(5));
回传;
}
}
我的碎片

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.bumptech.glide.Glide;

import java.util.ArrayList;

public class MyFragment extends Fragment {

    public static final String IMAGE_URL = "IMAGE_URL";
    TextView messageTextView;
    ImageView imageView;

    public ArrayList<String> UrlsImage = new ArrayList<String>();
    public ArrayList<String> TagLine = new ArrayList<String>();

    public static MyFragment newInstance(Integer index)
    {
        MyFragment f = new MyFragment();
        Bundle bdl = new Bundle(1);
        bdl.putInt(IMAGE_URL,index);
        f.setArguments(bdl);
        return f;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

       int index = getArguments().getInt(IMAGE_URL);



        UrlsImage.add("http://itradar.ir/wp-content/uploads/2016/08/root-android-5.jpg");
        UrlsImage.add("http://www.pcwebim.com/wp-content/uploads/2015/12/Android.jpg");
        UrlsImage.add("http://www.androidrootguide.com/wp-content/uploads/2014/10/Stock-Android-Wallpapers-Download.jpg");
        UrlsImage.add("https://ardroid.com/wp-content/uploads/2011/01/wpaper1294246633612.jpg");
        UrlsImage.add("http://www.androidcentral.com/sites/androidcentral.com/files/styles/w550h500/public/wallpapers/black-lloyd-7dk.jpg?itok=bGsIaB2R");


        TagLine.add("Android Pirate");
        TagLine.add("Android Alien");
        TagLine.add("Android Perfect");
        TagLine.add("Android Halloween");
        TagLine.add("Android Black");





        View v = inflater.inflate(R.layout.myfragment_layout, container, false);
        messageTextView = (TextView)v.findViewById(R.id.textView);
        imageView = (ImageView) v.findViewById(R.id.imageview);

        Glide.with(this)
                .load(UrlsImage.get(index-1))
                .into(imageView);

        messageTextView.setText(TagLine.get(index-1));

        return v;
    }

}
导入android.os.Bundle;
导入android.support.v4.app.Fragment;
导入android.view.LayoutInflater;
导入android.view.view;
导入android.view.ViewGroup;
导入android.widget.ImageView;
导入android.widget.TextView;
导入com.bumptech.glide.glide;
导入java.util.ArrayList;
公共类MyFragment扩展了Fragment{
公共静态最终字符串IMAGE\u URL=“IMAGE\u URL”;
文本视图消息文本视图;
图像视图图像视图;
public ArrayList UrlsImage=new ArrayList();
public ArrayList TagLine=new ArrayList();
公共静态MyFragment newInstance(整数索引)
{
MyFragment f=新的MyFragment();
Bundle bdl=新Bundle(1);
bdl.putInt(图像、URL、索引);
f、 设置参数(bdl);
返回f;
}
@凌驾
CreateView上的公共视图(布局、充气机、视图组容器、捆绑包保存状态){
int index=getArguments().getInt(图像URL);
UrlsImage.add(“http://itradar.ir/wp-content/uploads/2016/08/root-android-5.jpg");
UrlsImage.add(“http://www.pcwebim.com/wp-content/uploads/2015/12/Android.jpg");
UrlsImage.add(“http://www.androidrootguide.com/wp-content/uploads/2014/10/Stock-Android-Wallpapers-Download.jpg");
UrlsImage.add(“https://ardroid.com/wp-content/uploads/2011/01/wpaper1294246633612.jpg");
UrlsImage.add(“http://www.androidcentral.com/sites/androidcentral.com/files/styles/w550h500/public/wallpapers/black-lloyd-7dk.jpg?itok=bGsIaB2R");
添加(“安卓海盗”);
标语。添加(“安卓外星人”);
添加(“安卓完美”);
添加(“安卓万圣节”);
添加(“安卓黑色”);
视图v=充气机。充气(R.layout.myfragment\u布局,容器,假);
messageTextView=(TextView)v.findViewById(R.id.TextView);
imageView=(imageView)v.findViewById(R.id.imageView);
用(这个)滑翔
.load(UrlsImage.get(索引-1))
.进入(图像视图);
messageTextView.setText(TagLine.get(index-1));
返回v;
}
}
MyPageAdapter(自定义适配器)

导入android.support.v4.app.Fragment;
导入android.support.v4.app.FragmentActivity;
导入android.support.v4.app.FragmentManager;
导入android.support.v4.app.FragmentPagerAdapter;
导入java.util.List;
公共类MyPageAdapter扩展了FragmentPagerAdapter{
私有列表片段;
公共MyPageAdapter(FragmentManager fm,列出片段){
超级(fm);
这个。碎片=碎片;
}
@凌驾
公共片段getItem(int位置){
返回此.fragments.get(位置);
}
@凌驾
public int getCount(){
返回此.fragments.size();
}
}
myu布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">


    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="fitXY"
        android:id="@+id/imageview"/>

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:layout_marginBottom="20dp"
        android:layout_marginLeft="20dp"
        android:textColor="@color/colorAccent"/>

</RelativeLayout>

我应该在哪里更改代码。
希望得到帮助。提前谢谢。

您可以在
onCreate()中使用类似的处理程序和计时器来执行此操作。


我想你可能会对一份工作感兴趣。这基本上是一个有动画师的框架布局

从文档中:

将在两个或多个视图之间设置动画的简单ViewAnimator 已添加到其中。一次只显示一个子对象。如果 请求时,可以定期在每个孩子之间自动切换 间隔时间

只需将此方法添加到您的活动/片段中

onCreate
中,只需调用一次即可

new Handler().postDelayed(update,1000);
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

import java.util.List;


public class MyPageAdapter extends FragmentPagerAdapter {

    private List<Fragment> fragments;

    public MyPageAdapter(FragmentManager fm,List<Fragment> fragments) {
        super(fm);
        this.fragments=fragments;
    }

    @Override
    public Fragment getItem(int position) {
        return this.fragments.get(position);
    }

    @Override
    public int getCount() {
        return this.fragments.size();
    }
}
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">


    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="fitXY"
        android:id="@+id/imageview"/>

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:layout_marginBottom="20dp"
        android:layout_marginLeft="20dp"
        android:textColor="@color/colorAccent"/>

</RelativeLayout>
final Handler handler = new Handler();

        final Runnable update = new Runnable() {
            public void run() {
                if (position == TOTAL_FRAMENT- 1) {
                    position = 0;
                } else {
                    position++;
                }
                pager.setCurrentItem(position, true);
            }
        };

        new Timer().schedule(new TimerTask() {
            @Override
            public void run() {
                handler.post(update);
            }
        }, 100, 1000);
private Runnable update = new Runnable() {
            public void run() {
                //get the position from viewPager.addOnPageChangeListener
                if (position == mAdapter.getCount()- 1) {
                    position = 0;
                } else {
                    position++;
                }
                pager.setCurrentItem(position, true);
                handler.post(update);
            }
        };
new Handler().postDelayed(update,1000);