android获取一个用于打开Word文件的intent

 通过Intent打开手机中能够阅读word，excle或pdf的应用，让那个应用来打开文件。这里给出word，excle的open

OpenWord类

package com.example.tomorrow.MobileOA.utils;

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.net.Uri;

import java.io.File;
import java.util.List;

/**
 * Created by he on 11/10 2015.
 * wang
 */
public class OpenWord {

　　//param为文档的主要路径
    public static Intent getWordFileIntent(String param) {
        Intent intent = null;
        try {
            intent = new Intent("android.intent.action.VIEW");
            intent.addCategory("android.intent.category.DEFAULT");
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            Uri uri = Uri.fromFile(new File(param));
            intent.setDataAndType(uri, "application/msword");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return intent;
    }

    public static Intent getExcelFileIntent(File param)
    {
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Uri uri = Uri.fromFile(param);
        intent.setDataAndType(uri, "application/vnd.ms-excel");
        return intent;
    }

    /**
     * 判断Intent 是否存在 防止崩溃
     * @param context
     * @param intent
     * @return
     */
    public static boolean isIntentAvailable(Context context, Intent intent) {
        final PackageManager packageManager = context.getPackageManager();
        List<ResolveInfo> list = packageManager.queryIntentActivities(intent,
                PackageManager.GET_ACTIVITIES);
        return list.size() > 0;
    }
}

 为一个按钮绑定事件

bt_download_look.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String name = files.get(position).getName();
                FileUtils fileUtils = new FileUtils();
                String path = fileUtils.getSDPATH() + "MobileOA/" + name;
                Intent intent = OpenWord.getWordFileIntent(path);
                boolean flag = OpenWord.isIntentAvailable(context, intent);
                if (!flag) {
                    Toast.makeText(context, "请安装offer", Toast.LENGTH_SHORT).show();
                } else {
                    context.startActivity(intent);
                }
            }
        });