Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.File;
import java.util.Random;

import android.content.ContentValues;
import android.content.Context;

import android.database.sqlite.SQLiteDatabase;

import android.os.Environment;
import android.os.Process;

public class Main {
    static File make_tmpdir(Context context, SQLiteDatabase db) throws Exception {

        File extdir = Environment.getExternalStorageDirectory();
        File tmp_top = new File(extdir, "tmp_LongText");
        if (!tmp_top.exists()) {
            if (!tmp_top.mkdir())
                throw new Exception("cannot create directory: " + tmp_top.getPath());
        }
        if (!tmp_top.canWrite())
            throw new Exception("missing permission to write to " + tmp_top.getPath());

        File tmpdir;
        Random r = new Random();
        do {
            tmpdir = new File(tmp_top, String.format("%d", r.nextInt()));
        } while (tmpdir.exists());
        if (!tmpdir.mkdir())
            throw new Exception("cannot create directory: " + tmp_top.getPath());
        if (!tmpdir.canWrite())
            throw new Exception("missing permission to write to " + tmp_top.getPath());
        ContentValues v = new ContentValues();
        v.put("pid", Process.myPid());
        v.put("tmpdir", tmpdir.getPath());
        v.put("ctime", System.currentTimeMillis());
        db.insert("tmpdir", null, v);

        return tmpdir;
    }
}