Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import android.content.Context;
import android.content.pm.PackageManager;
import android.os.Environment;
import java.io.File;
import static android.os.Environment.MEDIA_MOUNTED;

public class Main {
    private static Context mContext;
    private static final String EXTERNAL_STORAGE_PERMISSION = "android.permission.WRITE_EXTERNAL_STORAGE";

    public static String getCacheDirectory() {
        String cachedDir = null;
        if (MEDIA_MOUNTED.equals(Environment.getExternalStorageState()) && hasExternalStoragePermission()) {
            cachedDir = getExternalCacheDir().getAbsolutePath();
        }
        if (cachedDir == null) {
            cachedDir = mContext.getCacheDir().getAbsolutePath();
        }
        if (cachedDir == null) {
            cachedDir = mContext.getFilesDir().getParentFile().getPath() + mContext.getPackageName() + "/cache";
        }
        return cachedDir;
    }

    private static boolean hasExternalStoragePermission() {
        int perm = mContext.checkCallingOrSelfPermission(EXTERNAL_STORAGE_PERMISSION);
        return perm == PackageManager.PERMISSION_GRANTED;
    }

    private static File getExternalCacheDir() {
        File dataDir = new File(new File(Environment.getExternalStorageDirectory(), "Android"), "data");
        File appCacheDir = new File(new File(dataDir, mContext.getPackageName()), "cache");
        if (!appCacheDir.exists()) {
            if (!appCacheDir.mkdirs()) {
                return null;
            }
        }
        return appCacheDir;
    }
}