open File External via Intent - Android Intent

Android examples for Intent:Open File

  1. HOME
  2. Android
  3. Intent
  4. Open File

Description

open File External via Intent

Demo Code


//package com.book2s;
import java.io.File;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.text.TextUtils;
import android.webkit.MimeTypeMap;

public class Main {
    public static void openFileExternal(Context context, String filePath) {
        if (TextUtils.isEmpty(filePath)) {
            return;
        }//from   w  w w.j  a  v a2  s . c  om
        Intent intent = new Intent();
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.setAction(Intent.ACTION_VIEW);
        String type = getMimeType(filePath);
        intent.setDataAndType(Uri.fromFile(new File(filePath)), type);
        try {
            context.startActivity(intent);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static String getMimeType(String filePath) {
        String type = null;
        String extension = getSuffix(filePath);
        if (!TextUtils.isEmpty(extension)) {
            MimeTypeMap mime = MimeTypeMap.getSingleton();
            type = mime.getMimeTypeFromExtension(extension);
        }
        if (TextUtils.isEmpty(type)) {
            type = "file/*";
        }
        return type;
    }

    public static String getSuffix(String filePath) {
        if (TextUtils.isEmpty(filePath)) {
            return null;
        }
        int dotPos = filePath.lastIndexOf('.');
        if (dotPos >= 0 && dotPos < filePath.length() - 1) {
            return filePath.substring(dotPos + 1);
        }
        return null;
    }
}

Related Tutorials