【小墩墩学Android】文件管理（四）

目录

​​1.前言​​

​​2.开发环境​​

​​3.主界面​​

​​4.菜单界面​​

​​5.复制粘贴界面​​

​​6.文件属性界面​​

​​7.重命名界面​​

​​8、部分代码​​

​​后续​​

1.前言

“明日复明日，明日何其多。 我生待明日，万事成蹉跎。 世人苦被明日累，春去秋来老将至。”

，

，

，时间有限，事情繁多，我们需要建立一个简单方法把它们分门别类地管理起来。

2.开发环境

android studio开发版本：

此app的开发模板：

3.主界面

4.菜单界面

5.复制粘贴界面

6.文件属性界面

7.重命名界面

8、部分代码

package com.fxyublib.android.seven.YubFile;

import java.io.File;

import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;

import androidx.core.content.FileProvider;

import com.fxyublib.android.seven.MyApplication;
import com.fxyublib.android.seven.R;

class FileOpenUtils {
    private static boolean checkEndsWithInStringArray(String checkItsEnd, String[] fileEndings){
        for(String aEnd : fileEndings){
            if(checkItsEnd.endsWith(aEnd))
                return true;
        }
        return false;
    }
    static Intent getIntentByFile(Context context, File currentPath){
        if(currentPath!=null && currentPath.isFile()){
            String fileName = currentPath.toString().toLowerCase();
            if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingImage))){
                return getImageFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingWebText))){
                return getHtmlFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingPackage))){
                return getApkFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingAudio))){
                return getAudioFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingVideo))){
                return getVideoFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingText))){
                return getTextFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingPdf))){
                return getPdfFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingWord))){
                return getWordFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingExcel))){
                return getExcelFileIntent(currentPath);
            }else if(checkEndsWithInStringArray(fileName, context.getResources().
                    getStringArray(R.array.fileEndingPPT))){
                return getPPTFileIntent(currentPath);
            }
        }

        return null;
    }

    private static Uri getFileUri(Intent intent, File file) {
        Uri uri;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            uri = FileProvider.getUriForFile(MyApplication.context(), MyApplication.context().getPackageName() + ".fileprovider", file);
            //【content://{$authority}/external/temp.apk】或【content://{$authority}/files/bqt/temp2.apk】
        } else {
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//【file:///storage/emulated/0/temp.apk】
            uri = Uri.fromFile(file);
        }

        return uri;
    }
    //android获取一个用于打开HTML文件的intent
    private static Intent getHtmlFileIntent(File file)
    {
        Uri uri = Uri.parse(file.toString()).buildUpon().encodedAuthority("com.android.htmlfileprovider").scheme("content").encodedPath(file.toString()).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
    private static Intent getImageFileIntent(File file)
    {
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Uri uri = getFileUri(intent, file);
        intent.setDataAndType(uri, "image/*");
        return intent;
    }
    //android获取一个用于打开PDF文件的intent
    private static Intent getPdfFileIntent(File file)
    {
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Uri uri = getFileUri(intent, file);
        intent.setDataAndType(uri, "application/pdf");
        return intent;
    }
    //android获取一个用于打开文本文件的intent
    private static Intent getTextFileIntent(File file)
    {
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Uri uri = getFileUri(intent, file);
        intent.setDataAndType(uri, "text/plain");
        return intent;
    }

    //android获取一个用于打开音频文件的intent
    private static Intent getAudioFileIntent(File file)
    {
        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 = getFileUri(intent, file);
        intent.setDataAndType(uri, "audio/*");
        return intent;
    }
    //android获取一个用于打开视频文件的intent
    private static Intent getVideoFileIntent(File file)
    {
        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 = getFileUri(intent, file);
        intent.setDataAndType(uri, "video/*");
        return intent;
    }

    //android获取一个用于打开CHM文件的intent
    private static Intent getChmFileIntent(File file)
    {
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Uri uri = getFileUri(intent, file);
        intent.setDataAndType(uri, "application/x-chm");
        return intent;
    }


    //android获取一个用于打开Word文件的intent
    private static Intent getWordFileIntent(File file)
    {
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Uri uri = getFileUri(intent, file);
        intent.setDataAndType(uri, "application/msword");
        return intent;
    }
    //android获取一个用于打开Excel文件的intent
    private static Intent getExcelFileIntent(File file)
    {
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Uri uri = getFileUri(intent, file);
        intent.setDataAndType(uri, "application/vnd.ms-excel");
        return intent;
    }
    //android获取一个用于打开PPT文件的intent
    private static Intent getPPTFileIntent(File file)
    {
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addCategory("android.intent.category.DEFAULT");
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        Uri uri = getFileUri(intent, file);
        intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
        return intent;
    }
    //android获取一个用于打开apk文件的intent
    private static Intent getApkFileIntent(File file)
    {
        Intent intent = new Intent();
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setAction(android.content.Intent.ACTION_VIEW);
        Uri uri = getFileUri(intent, file);
        intent.setDataAndType(uri, "application/vnd.android.package-archive");
        return intent;
    }
}