安卓打开各种文件工具类FileUtils

最新推荐文章于 2023-06-11 15:58:03 发布
原创最新推荐文章于 2023-06-11 15:58:03 发布 · 1k 阅读
1 ·
CC 4.0 BY-SA版权
android入门教学同时被 2 个专栏收录
166 篇文章
订阅专栏
工具类
66 篇文章
订阅专栏
本文提供了一种在Android系统中打开各种文件类型的实用方法，包括但不限于ZIP、RAR、APK等压缩包，以及常见的文档、图片和多媒体文件。通过解析文件扩展名并设置正确的MimeType，该方法能够确保文件被正确地传递给相应的应用程序进行处理。
摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >
打开ZIP,RAR、APK、PPT、JPG、JIF、PNG、MP4、DOC、DOCX等等
package com.youli.zbetuch_huangpu.utils;


import android.content.Context;
import android.content.Intent;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.support.v4.content.FileProvider;
import java.io.File;
import java.util.List;

/**
 * Created by liutao on 2017/9/1.
 */

public class FileUtils {

    public static Intent openFile(String filePath) {

        File file = new File(filePath);

        if ((file == null) || !file.exists() || file.isDirectory())
            return null;

		/* 取得扩展名 */
        String end = file
                .getName()
                .substring(file.getName().lastIndexOf(".") + 1,
                        file.getName().length()).toLowerCase();
		/* 依扩展名的类型决定MimeType */
        if (end.equals("m4a") || end.equals("mp3") || end.equals("mid")
                || end.equals("xmf") || end.equals("ogg") || end.equals("wav")) {

            return getAudioFileIntent(filePath);
        } else if (end.equals("3gp") || end.equals("mp4")) {

            return getAudioFileIntent(filePath);
        } else if (end.equals("jpg") || end.equals("gif") || end.equals("png")
                || end.equals("jpeg") || end.equals("bmp")) {

            return getImageFileIntent(filePath);
        } else if (end.equals("apk")) {

            return getApkFileIntent(filePath);
        } else if (end.equals("ppt")) {

            return getPptFileIntent(filePath);
        } else if (end.equals("xls")) {

            return getExcelFileIntent(filePath);
        } else if (end.equals("doc") || end.equals("docx")) {

            return getWordFileIntent(filePath);

        } else if (end.equals("pdf")) {

            return getPdfFileIntent(filePath);
        } else if (end.equals("chm")) {

            return getChmFileIntent(filePath);
        } else if (end.equals("txt")||end.equals("rar")) {

            return getTextFileIntent(filePath, false);
        } else if (end.equals("zip")||end.equals("rar")){

            return getZIPFileIntent(filePath);
        }else {
            return getAllIntent(end,filePath);
        }
    }


    // Android获取一个用于打开APK文件的intent
    public static Intent getAllIntent(String end,String param) {

        Intent intent = new Intent();
        if (Build.VERSION.SDK_INT <Build.VERSION_CODES.N) {//小于安卓7.0
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.setAction(Intent.ACTION_VIEW);
            Uri uri = Uri.fromFile(new File(param));
            intent.setDataAndType(uri, "*/*");
        }else {//大于安卓7.0
            Uri uri = FileProvider.getUriForFile(MyApplication.getContext(), "com.youli.zbetuch_huangpu.provider", new File(param));
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);    //这一步很重要。给目标应用一个临时的授权。

            if(end.equals("xlsx")) {
                intent.setDataAndType(uri, "application/vnd.ms-excel");
            }else{
                intent.setDataAndType(uri, "*/*");
            }
        }
        return intent;
    }

    // Android获取一个用于打开APK文件的intent
    public static Intent getApkFileIntent(String param) {

        Intent intent = new Intent();
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setAction(Intent.ACTION_VIEW);
        Uri uri = Uri.fromFile(new File(param));
        intent.setDataAndType(uri, "application/vnd.android.package-archive");
        return intent;
    }

    // Android获取一个用于打开VIDEO文件的intent
    public static Intent getVideoFileIntent(String param) {

        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intent.putExtra("oneshot", 0);
        intent.putExtra("configchange", 0);
        Uri uri = Uri.fromFile(new File(param));
        intent.setDataAndType(uri, "video/*");
        return intent;
    }

    // Android获取一个用于打开AUDIO文件的intent
    public static Intent getAudioFileIntent(String param) {

        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intent.putExtra("oneshot", 0);
        intent.putExtra("configchange", 0);
        Uri uri = Uri.fromFile(new File(param));
        intent.setDataAndType(uri, "audio/*");
        return intent;
    }

    // Android获取一个用于打开Html文件的intent
    public static Intent getHtmlFileIntent(String param) {

        Uri uri = Uri.parse(param).buildUpon()
                .encodedAuthority("com.android.htmlfileprovider")
                .scheme("content").encodedPath(param).build();
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.setDataAndType(uri, "text/html");
        return intent;
    }

    // Android获取一个用于打开图片文件的intent
    public static Intent getImageFileIntent(String param) {
        Intent intent = new Intent("android.intent.action.VIEW");
        if (Build.VERSION.SDK_INT <Build.VERSION_CODES.N){//小于7.0查看图片
            intent.addCategory("android.intent.category.DEFAULT");
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            Uri uri = Uri.fromFile(new File(param));
            intent.setDataAndType(uri, "image/*");
        }else{//大于等于7.0查看图片
            Uri photoURI = FileProvider.getUriForFile(MyApplication.getContext(), "com.youli.zbetuch_huangpu.provider", new File(param));
            intent.setDataAndType(photoURI, "image/*");
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);    //这一步很重要。给目标应用一个临时的授权。
        }

        return intent;
    }

    // Android获取一个用于打开PPT文件的intent
    public static Intent getPptFileIntent(String 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(new File(param));
        intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
        return intent;
    }

    // Android获取一个用于打开Excel文件的intent
    public static Intent getExcelFileIntent(String 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(new File(param));
        intent.setDataAndType(uri, "application/vnd.ms-excel");
        return intent;
    }

    // Android获取一个用于打开Word文件的intent
    public static Intent getWordFileIntent(String 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(new File(param));
        intent.setDataAndType(uri, "application/msword");
        return intent;
    }

    // Android获取一个用于打开CHM文件的intent
    public static Intent getChmFileIntent(String 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(new File(param));
        intent.setDataAndType(uri, "application/x-chm");
        return intent;
    }

    // Android获取一个用于打开文本文件的intent
    public static Intent getTextFileIntent(String param, boolean paramBoolean) {

        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        if (paramBoolean) {
            Uri uri1 = Uri.parse(param);
            intent.setDataAndType(uri1, "text/plain");
        } else {
            Uri uri2 = Uri.fromFile(new File(param));
            intent.setDataAndType(uri2, "text/plain");
        }
        return intent;
    }


    //Android获取一个用于打开ZIP压缩的文件的intent
    public static Intent getZIPFileIntent(String param) {
    Intent intent = new Intent();
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    intent.setAction(android.content.Intent.ACTION_VIEW);
    Uri uri = Uri.fromFile(new File(param));
    intent.setDataAndType(uri,"application/x-gzip");
    return intent;
    }

    // Android获取一个用于打开PDF文件的intent
    public static Intent getPdfFileIntent(String 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(new File(param));
        intent.setDataAndType(uri, "application/pdf");
        return intent;
    }


    /**
     * 查询设备上所有非系统apk
     *
     * @param mContext
     * @return
     */
    public static String showAllApks(Context mContext) {
        String value = "";
        try {
            PackageManager packageManager = mContext.getPackageManager();
            List<PackageInfo> packageInfoList = packageManager
                    .getInstalledPackages(0);
            for (PackageInfo info : packageInfoList) {
                // 判断如果不是系统apk
                if ((info.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) <= 0) {
                    // System.out.println(info.applicationInfo.packageName
                    // + "===>"
                    // + packageManager
                    // .getApplicationLabel(info.applicationInfo));
                    value += packageManager
                            .getApplicationLabel(info.applicationInfo) + ",";
                }

                // 获得应用的图标
                // packageManager.getApplicationIcon(applicationInfo)
            }
            if (value.trim().length() > 1) {
                value = value.substring(0, value.length() - 1);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return value;
    }

    public static File getSaveFile(Context context) {
        return new File(context.getFilesDir(), "pic.jpg");
    }

}