package com.why.project.sharewithsystemdemo.util;import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.support.v4.content.FileProvider;
import android.widget.Toast;import java.io.File;
import java.util.ArrayList;/*** Created by haiyuKing* Used 调用系统自带的分享的工具类* 增加适配7.0FileProvider的功能*/public class ShareIntentUtil {//指定分享到的软件包名public static final String PACKAGE_QQ = "com.tencent.mobileqq";//分享到QQpublic static final String PACKAGE_QZONE = "com.qzone";//分享会到QQ空间public static final String PACKAGE_WBLOG = "com.tencent.WBlog";//分享到腾讯微博public static final String PACKAGE_WXIN = "com.tencent.mm";//分享到微信public static final String PACKAGE_WEIBO = "com.sina.weibo";//分享到新浪微博public static final String PACKAGE_BAIDUYUN = "com.baidu.netdisk";//分享到百度云//分享文本public static void shareText(Context mContext, String shareText, String shareTitle){Intent shareIntent = new Intent(Intent.ACTION_SEND);shareIntent.setType("text/plain");shareIntent.putExtra(Intent.EXTRA_TEXT, shareText);//适配7.0FileProviderif (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//添加这一句表示对目标应用临时授权该Uri所代表的文件【很重要】
        }mContext.startActivity(Intent.createChooser(shareIntent, shareTitle));//可以设置标题
    }//分享文本到指定应用public static void shareTextTo(Context mContext, String shareText, String shareTitle, String packageName){Intent shareIntent = new Intent(Intent.ACTION_SEND);shareIntent.setPackage(packageName);shareIntent.setType("text/plain");shareIntent.putExtra(Intent.EXTRA_TEXT, shareText);//适配7.0FileProviderif (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//添加这一句表示对目标应用临时授权该Uri所代表的文件【很重要】
        }//通过Intent的resolveActivity方法，并想该方法传入包管理器可以对包管理器进行查询以确定是否有Activity能够启动该Intent//https://blog.csdn.net/qq_15796477/article/details/72953514PackageManager pm = mContext.getPackageManager();ComponentName cn = shareIntent.resolveActivity(pm);if(cn == null){Toast.makeText(mContext,"未安装该应用",Toast.LENGTH_SHORT).show();}else {mContext.startActivity(Intent.createChooser(shareIntent, shareTitle));//可以设置标题
        }}//分享单张图片public static void shareOneImg(Context mContext, String imgPath, String shareTitle){File file = new File(imgPath);if (!file.exists()) {Toast.makeText(mContext,"文件不存在",Toast.LENGTH_SHORT).show();return;}//由文件得到uriUri imageUri = getUri(mContext,file);Intent shareIntent = new Intent();shareIntent.setAction(Intent.ACTION_SEND);shareIntent.putExtra(Intent.EXTRA_STREAM, imageUri);shareIntent.setType("image/*");//适配7.0FileProviderif (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//添加这一句表示对目标应用临时授权该Uri所代表的文件【很重要】
        }mContext.startActivity(Intent.createChooser(shareIntent, shareTitle));//可以设置标题
    }//分享多张图片public static void shareMultImg(Context mContext, ArrayList<String> imgPathList, String shareTitle){ArrayList<Uri> uriList = new ArrayList<>();for(int i=0;i<imgPathList.size();i++){File file = new File(imgPathList.get(i));if (!file.exists()) {Toast.makeText(mContext,"文件不存在",Toast.LENGTH_SHORT).show();return;}uriList.add(getUri(mContext,file));}Intent shareIntent = new Intent();shareIntent.setAction(Intent.ACTION_SEND_MULTIPLE);shareIntent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, uriList);shareIntent.setType("image/*");//适配7.0FileProviderif (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//添加这一句表示对目标应用临时授权该Uri所代表的文件【很重要】
        }mContext.startActivity(Intent.createChooser(shareIntent, shareTitle));//可以设置标题
    }//分享单个文件public static void shareOneFile(Context mContext, String filePath, String shareTitle){File file = new File(filePath);if (!file.exists()) {Toast.makeText(mContext,"文件不存在",Toast.LENGTH_SHORT).show();return;}//由文件得到uriUri fileUri = getUri(mContext,file);Intent shareIntent = new Intent();shareIntent.setAction(Intent.ACTION_SEND);shareIntent.putExtra(Intent.EXTRA_STREAM, fileUri);shareIntent.setType("*/*");//适配7.0FileProviderif (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//添加这一句表示对目标应用临时授权该Uri所代表的文件【很重要】
        }mContext.startActivity(Intent.createChooser(shareIntent, shareTitle));//可以设置标题
    }//获取到uri--适配7.0FileProviderprivate static Uri getUri(Context mContext, File file){Uri uri;if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {String authority = mContext.getApplicationInfo().packageName + ".provider";uri = FileProvider.getUriForFile(mContext.getApplicationContext(), authority, file);//intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);//添加这一句表示对目标应用临时授权该Uri所代表的文件【很重要】} else {uri = Uri.fromFile(file);}return uri;}
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"android:gravity="center"><Buttonandroid:id="@+id/btn_share_text"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="分享文本"android:layout_marginTop="10dp"/><Buttonandroid:id="@+id/btn_share_one_img"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="分享单张图片"android:layout_marginTop="10dp"/><Buttonandroid:id="@+id/btn_share_mult_img"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="分享多张图片"android:layout_marginTop="10dp"/><Buttonandroid:id="@+id/btn_share_to_qq"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="分享到qq"android:layout_marginTop="10dp"/><Buttonandroid:id="@+id/btn_share_one_file"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="分享单个文件"android:layout_marginTop="10dp"/></LinearLayout>