Android 分享到其他app

首先介绍一下最简单最常用的分享方式，就是先获取系统里有分享功能的app列表，然后用intent传输一些值过去

下面是获取系统中可分享的app的代码

private List<ResolveInfo> activityList;

 private void init() {

        PackageManager pm = mContext.getPackageManager();
        Intent clipboardIntent = new Intent(Intent.ACTION_ALL_APPS);
        clipboardIntent.setType("text/plain");
       
        Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
        sharingIntent.setType("text/plain");

        activityList = pm.queryIntentActivities(sharingIntent, 0);
        if(activityList==null)return;
        for (int i = 0; i < activityList.size(); i++) {
            JLogUtils.i("Alex","可分享的app是"+activityList.get(i).activityInfo.packageName);
        }
    }

这样就获得了一个装有多个app调用的List

/**
     * 显示可以用于分享的app的对话框列表
     */
    public void show() {
        Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
        sharingIntent.setType("text/plain");
        ShareIntentListAdapter objShareIntentListAdapter = new ShareIntentListAdapter((Activity) mContext, activityList.toArray());
        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
        builder.setTitle("Share your link");
        builder.setAdapter(objShareIntentListAdapter, new DialogInterface.OnClickListener() {//建立一个listView状的弹出对话框
            public void onClick(DialogInterface dialog, int item) {
                JLogUtils.i("Alex", "点击了第" + item + "个");
                ResolveInfo info = (ResolveInfo) activityList.get(item);
                JLogUtils.i("Alex", "点击的项目是" + info.activityInfo.packageName + "  class是" + info.activityInfo.name);
                // if email shared by user
                if (info.activityInfo.packageName.contains("facebook")) {
                    shareFacebook();//faceBook SDK有自己专门的分享方法
                    return;
                }
                // start respective activity
                Intent intent = new Intent(android.content.Intent.ACTION_SEND);
                intent.setClassName(info.activityInfo.packageName, info.activityInfo.name);
                intent.setType("text/plain");//除了facebook以外，其他的只发送文本，只把title和content发送出去
                if (!TextUtils.isEmpty(title)) {
                    JLogUtils.i("Alex", "title是" + title);
                    intent.putExtra(android.content.Intent.EXTRA_SUBJECT, title);//把标题发过去
                }
                JLogUtils.i("Alex", "content是" + content);
                intent.putExtra(android.content.Intent.EXTRA_TEXT, content);//把内容发过去
                mContext.startActivity(intent);//这里有一个传来的环境变量
            }// end onClick
        });
        AlertDialog alert = builder.create();
        alert.setCancelable(true);
        alert.setCanceledOnTouchOutside(true);
        alert.show();
    }

附适配器的写法

import android.app.Activity;
import android.content.pm.ResolveInfo;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.imaginato.qravedconsumer.widget.CustomTextView;
import com.qraved.app.R;

public class ShareIntentListAdapter extends ArrayAdapter{

    private final Activity context;
    Object[] items;


    public ShareIntentListAdapter(Activity context,Object[] items) {

        super(context, R.layout.layout_shared, items);
        this.context = context;
        this.items = items;

    }// end HomeListViewPrototype

    class ShareHolder{
        CustomTextView shareName;
        ImageView imageShare;


    }

    @Override
    public View getView(int position, View view, ViewGroup parent) {

        ShareHolder hodler=null;
        if(view==null){
            LayoutInflater inflater = context.getLayoutInflater();
            view=  inflater.inflate(R.layout.layout_shared, null, true);
            hodler=new ShareHolder();
            hodler.imageShare= (ImageView) view.findViewById(R.id.shareImage);
            hodler.shareName= (CustomTextView) view.findViewById(R.id.shareName);
            view.setTag(hodler);
        }else{
            hodler= (ShareHolder) view.getTag();
        }
        // set native name of App to share
        hodler.shareName.setText(((ResolveInfo) items[position]).activityInfo.applicationInfo.loadLabel(context.getPackageManager()).toString());

        // share native image of the App to share
        hodler.imageShare.setImageDrawable(((ResolveInfo) items[position]).activityInfo.applicationInfo.loadIcon(context.getPackageManager()));
        return view;
    }// end getView

}// end main onCreate

附，list单个布局的写法

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/categoryCell"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingTop="10dp"
    android:paddingBottom="10dp"
    android:paddingLeft="15dp"
    android:paddingRight="15dp"
    android:background="@android:color/white" >
    <ImageView
        android:id="@+id/shareImage"

        android:layout_width="40dip"
        android:layout_height="40dip"
        android:layout_centerVertical="true"
        />

    <TextView
        android:id="@+id/shareName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginLeft="10dp"

        android:layout_toRightOf="@+id/shareImage"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:textColor="@color/black666666"
        imaginato:textFont="openSansBold"
         />
</RelativeLayout>

下面写一下facebookshare的方法

/**
     * 配置要发到facebook的内容
     */
    private void shareFacebook() {
        String link = webUrl;
        String picture = (imageUrl == null ? "" : imageUrl);
        String applicationname = mContext.getResources().getString(R.string.app_name);
        JShareUtils.FacebookStoryEntity entity = new JShareUtils.FacebookStoryEntity();
        JLogUtils.i("Alex","要分享到facebook的entity是"+entity);
        entity.setLink(link);
        entity.setApplicationName(applicationname);
        entity.setDescription(facebookDesc);
        entity.setName(title);
        entity.setCaption("see now on Qraved");
        if (imageUrl != null) {
            entity.setPicture(picture);
        }
        JShareUtils.publishFacebookStoryByNativeApp((Activity) mContext, entity, shareHandler);
    }

 public static void publishFacebookStoryByNativeApp(Activity activity, FacebookStoryEntity entity, Handler handler) {
        if (activity == null || entity == null) {
            callBackByHandler(handler, HANDLER_WHAT_FACEBOOK_ERROR_INIT, null);
            return;
        }
        try {
            String link = entity.getLink();
            String applicationname = entity.getApplicationName();
            String description = entity.getDescription();
            String name = entity.getName();
            String caption = entity.getCaption();
            String picture = entity.getPicture();

            try {
                FacebookDialog.ShareDialogBuilder shareDialogBuilder = new FacebookDialog.ShareDialogBuilder(activity);//facebook sdk自己的类真的很好用

                if (link != null) {
                    shareDialogBuilder.setLink(link);
                }

                if (applicationname != null) {
                    shareDialogBuilder.setApplicationName(applicationname);
                }

                if (description != null) {
                    shareDialogBuilder.setDescription(description);
                }

                if (name != null) {
                    shareDialogBuilder.setName(name);
                }

                if (caption != null) {
                    shareDialogBuilder.setCaption(caption);
                }

                if (picture != null) {
                    shareDialogBuilder.setPicture(picture);
                }

                if (shareDialogBuilder.canPresent()) {
                    FacebookDialog shareDialog = shareDialogBuilder.build();
                    shareDialog.present();
                } else {
                    callBackByHandler(handler, HANDLER_WHAT_FACEBOOK_ERROR_UNINSTALLED, null);
                }
            } catch (FacebookException ex) {
                if (ex != null) {
                    ex.printStackTrace();
                }

                callBackByHandler(handler, HANDLER_WHAT_FACEBOOK_ERROR_NOINTERNET, null);
            }
        } catch (Exception e) {
            callBackByHandler(handler, HANDLER_WHAT_FACEBOOK_ERROR_NOINTERNET, null);
        }
    }

 public static class FacebookStoryEntity implements Serializable {
        private static final long serialVersionUID = -1368296115091129534L;
        private String link, applicationName, description, name, caption,
                picture;

        public String getLink() {
            return link;
        }

        public void setLink(String link) {
            this.link = link;
        }

        public String getApplicationName() {
            return applicationName;
        }

        public void setApplicationName(String applicationName) {
            this.applicationName = applicationName;
        }

        public String getDescription() {
            return description;
        }

        public void setDescription(String description) {
            this.description = description;
        }

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public String getCaption() {
            return caption;
        }

        public void setCaption(String caption) {
            this.caption = caption;
        }

        public String getPicture() {
            return picture;
        }

        public void setPicture(String picture) {
            this.picture = picture;
        }

      
    }

facebook的sdk

dependencies {
    compile project(':libraries:facebook')  
}

需要引入一个项目当库，facebook项目下载地址：http://download.csdn.net/detail/lvshaorong/9396080

ps：这个库同时也支持facebook的登录功能