Example usage for android.content Context getCacheDir

Introduction

In this page you can find the example usage for android.content Context getCacheDir.

Prototype

public abstract File getCacheDir();

Source Link

Document

Returns the absolute path to the application specific cache directory on the filesystem.

Usage

From source file:com.github.chenxiaolong.dualbootpatcher.settings.AppSharingUtils.java

public static void updateRamdisk(Context context) throws Exception {
    PatcherUtils.extractPatcher(context);

    RomInformation romInfo = RomUtils.getCurrentRom(context);
    if (romInfo == null) {
        throw new Exception("Could not determine current ROM");
    }//from   w  w  w  . j  ava2 s.  c o  m

    String bootImage = String.format(SwitcherUtils.KERNEL_PATH_ROOT, romInfo.id);
    RootFile bootImageFile = new RootFile(bootImage);

    if (!bootImageFile.isFile()) {
        SwitcherUtils.backupKernel(romInfo.id);
    }

    String tmpKernel = context.getCacheDir() + File.separator + "boot.img";
    RootFile tmpKernelFile = new RootFile(tmpKernel);
    bootImageFile.copyTo(tmpKernelFile);
    tmpKernelFile.chmod(0777);

    BootImage bi = new BootImage();
    if (!bi.load(tmpKernel)) {
        PatcherError error = bi.getError();
        throw new Exception("Error code: " + error.getErrorCode());
    }

    CpioFile cpio = new CpioFile();
    if (!cpio.load(bi.getRamdiskImage())) {
        PatcherError error = cpio.getError();
        throw new Exception("Error code: " + error.getErrorCode());
    }

    if (cpio.isExists("mbtool")) {
        cpio.remove("mbtool");
    }

    if (!cpio.addFile(
            PatcherUtils.getTargetDirectory(context) + "/binaries/android/" + Build.CPU_ABI + "/mbtool",
            "mbtool", 0755)) {
        PatcherError error = cpio.getError();
        throw new Exception("Error code: " + error.getErrorCode());
    }

    bi.setRamdiskImage(cpio.createData(true));

    if (!bi.createFile(tmpKernel)) {
        PatcherError error = bi.getError();
        throw new Exception("Error code: " + error.getErrorCode());
    }

    if (bi.isLoki()) {
        String aboot = context.getCacheDir() + File.separator + "aboot.img";
        SwitcherUtils.dd(SwitcherUtils.ABOOT_PARTITION, aboot);
        new RootFile(aboot).chmod(0666);

        String lokiKernel = context.getCacheDir() + File.separator + "kernel.lok";

        if (lokiPatch("boot", aboot, tmpKernel, lokiKernel) != 0) {
            throw new Exception("Failed to loki patch new boot image");
        }

        new File(lokiKernel).delete();

        org.apache.commons.io.FileUtils.moveFile(new File(lokiKernel), new File(tmpKernel));
    }

    // Copy to target
    new RootFile(tmpKernel).copyTo(bootImageFile);
    bootImageFile.chmod(0755);

    SwitcherUtils.writeKernel(romInfo.id);
}

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From source file:Main.java

/**
 * Returns application cache directory. Cache directory will be created on SD card
 * <i>("/Android/data/[app_package_name]/cache")</i> (if card is mounted and app has appropriate permission) or
 * on device's file system depending incoming parameters.
 *
 * @param context        Application context
 * @param preferExternal Whether prefer external location for cache
 * @return Cache {@link File directory}.<br />
 * <b>NOTE:</b> Can be null in some unpredictable cases (if SD card is unmounted and
 * {@link Context#getCacheDir() Context.getCacheDir()} returns null).
 */// w  ww .ja  v  a  2  s  .  co  m
public static File getCacheDirectory(Context context, boolean preferExternal) {
    File appCacheDir = null;
    String externalStorageState;
    try {
        externalStorageState = Environment.getExternalStorageState();
    } catch (NullPointerException e) { // (sh)it happens (Issue #660)
        externalStorageState = "";
    } catch (IncompatibleClassChangeError e) { // (sh)it happens too (Issue #989)
        externalStorageState = "";
    }
    if (preferExternal && MEDIA_MOUNTED.equals(externalStorageState) && hasExternalStoragePermission(context)) {
        appCacheDir = getExternalCacheDir(context);
    }
    if (appCacheDir == null) {
        appCacheDir = context.getCacheDir();
    }
    if (appCacheDir == null) {
        String cacheDirPath = "/data/data/" + context.getPackageName() + "/cache/";
        appCacheDir = new File(cacheDirPath);
    }
    return appCacheDir;
}

---

From source file:com.android.pc.ioc.image.ImageCache.java

/**
 * ?/*from www  .j av a  2  s.com*/
 * 
 * @author gdpancheng@gmail.com 2014-5-19 ?4:05:28
 * @param context
 * @param uniqueName
 * @return File
 */
public static File getDiskCacheDir(Context context, String uniqueName) {
    final String cachePath = Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
            || !isExternalStorageRemovable() ? getExternalCacheDir(context).getPath()
                    : context.getCacheDir().getPath();

    return new File(cachePath + File.separator + uniqueName);
}

---

From source file:com.example.image.ImageCache.java

/**
 * Get the external app cache directory.
 *
 * @param context The context to use//from  ww w  . j av a  2s  .c  om
 * @return The external cache dir
 */
@TargetApi(8)
public static File getExternalCacheDir(Context context) {
    if (VersionUtils.hasFroyo()) {
        File cacheDir = context.getExternalCacheDir();
        if (cacheDir != null) {
            return cacheDir;
        }
        return context.getCacheDir();
    }

    // Before Froyo we need to construct the external cache dir ourselves
    final String cacheDir = "/Android/data/" + context.getPackageName() + "/cache/";
    return new File(Environment.getExternalStorageDirectory().getPath() + cacheDir);
}

---

From source file:com.hippo.ehviewer.EhApplication.java

@NonNull
public static Conaco<ImageBitmap> getConaco(@NonNull Context context) {
    EhApplication application = ((EhApplication) context.getApplicationContext());
    if (application.mConaco == null) {
        Conaco.Builder<ImageBitmap> builder = new Conaco.Builder<>();
        builder.hasMemoryCache = true;/*from  w ww  . j  a v  a2s.c  om*/
        builder.memoryCacheMaxSize = getMemoryCacheMaxSize();
        builder.hasDiskCache = true;
        builder.diskCacheDir = new File(context.getCacheDir(), "thumb");
        builder.diskCacheMaxSize = 80 * 1024 * 1024; // 80MB
        builder.okHttpClient = getOkHttpClient(context);
        builder.objectHelper = getImageBitmapHelper(context);
        builder.debug = DEBUG_CONACO;
        application.mConaco = builder.build();
    }
    return application.mConaco;
}

---

From source file:com.cognizant.trumobi.em.Email.java

public static void setTempDirectory(Context context) {
    sTempDirectory = context.getCacheDir();
}

---

From source file:Main.java

public static File downSample(Context context, Uri uri) throws Exception {
    Bitmap b = null;/*from  w w w.  j  av a  2s.  co m*/

    //Decode image size
    BitmapFactory.Options o = new BitmapFactory.Options();
    o.inJustDecodeBounds = true;

    int scale = 1;
    if (o.outHeight > MAX_SIZE || o.outWidth > MAX_SIZE) {
        scale = (int) Math.pow(2, (int) Math
                .round(Math.log(MAX_SIZE / (double) Math.max(o.outHeight, o.outWidth)) / Math.log(0.5)));
    }

    //Decode with inSampleSize
    BitmapFactory.Options o2 = new BitmapFactory.Options();
    o2.inSampleSize = scale;
    InputStream is = context.getContentResolver().openInputStream(uri);
    b = BitmapFactory.decodeStream(is, null, o2);
    is.close();

    File outputDir = context.getCacheDir();
    File outputFile = File.createTempFile("avatar", ".jpg", outputDir);
    FileOutputStream fos = new FileOutputStream(outputFile);
    b.compress(Bitmap.CompressFormat.JPEG, 80, fos);
    fos.close();

    return outputFile;
}

---

From source file:com.manning.androidhacks.hack040.util.DiskLruCache.java

/**
 * Get a usable cache directory (external if available, internal otherwise).
 * // w  w w .j a v  a2 s. c  o  m
 * @param context
 *          The context to use
 * @param uniqueName
 *          A unique directory name to append to the cache dir
 * @return The cache dir
 */
public static File getDiskCacheDir(Context context, String uniqueName) {

    // Check if media is mounted or storage is built-in, if so, try and use
    // external cache dir
    // otherwise use internal cache dir
    final String cachePath = Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)
            || !Utils.isExternalStorageRemovable() ? Utils.getExternalCacheDir(context).getPath()
                    : context.getCacheDir().getPath();

    return new File(cachePath + File.separator + uniqueName);
}

---

From source file:org.nativescript.widgets.image.Cache.java

/**
 * Get a usable cache directory (external if available, internal otherwise).
 *
 * @param context    The context to use/* w  w  w. ja  va  2 s. c o  m*/
 * @param uniqueName A unique directory name to append to the cache dir
 * @return The cache dir
 */
public static File getDiskCacheDir(Context context, String uniqueName) {
    // Check if media is mounted or storage is built-in, if so, try and use external cache dir
    // otherwise use internal cache dir
    final File cacheFilePath = Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
            || !isExternalStorageRemovable() ? getExternalCacheDir(context) : context.getCacheDir();
    // In case there is no external storage isExternalStorageRemovable returns False and we get Null from getExternalCacheDir.
    // If this is the case - fall back to internal cache dir.
    final String cachePath = cacheFilePath != null ? cacheFilePath.getPath() : context.getCacheDir().getPath();
    return new File(cachePath + File.separator + uniqueName);
}

---

From source file:Main.java

/**
 * Returns application cache directory. Cache directory will be created on SD card
 * <i>("/Android/data/[app_package_name]/cache")</i> (if card is mounted and app has appropriate permission) or
 * on device's file system depending incoming parameters.
 *
 * @param context        Application context
 * @param preferExternal Whether prefer external location for cache
 * @return Cache {@link File directory}.<br />
 * <b>NOTE:</b> Can be null in some unpredictable cases (if SD card is unmounted and
 * {@link android.content.Context#getCacheDir() Context.getCacheDir()} returns null).
 *///w w  w . j a  v a2  s  .c o  m
public static File getCacheDirectory(Context context, boolean preferExternal, boolean cache, String customDir) {
    File appCacheDir = null;
    String externalStorageState;
    try {
        externalStorageState = Environment.getExternalStorageState();
    } catch (NullPointerException e) { // (sh)it happens (Issue #660)
        externalStorageState = "";
    } catch (IncompatibleClassChangeError e) { // (sh)it happens too (Issue #989)
        externalStorageState = "";
    }
    if (preferExternal && MEDIA_MOUNTED.equals(externalStorageState) && hasExternalStoragePermission(context)) {
        appCacheDir = getExternalCacheDir(context, cache, customDir);
    }
    if (appCacheDir == null) {
        appCacheDir = context.getCacheDir();
    }
    if (appCacheDir == null) {
        String cacheDirPath;
        cacheDirPath = "/data/data/" + context.getPackageName() + "/" + customDir + "/";

        appCacheDir = new File(cacheDirPath);
    }
    return appCacheDir;
}

---

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