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:Main.java

public static File getCacheDir(Context context) {
    return isExternalStorageWritable() ? context.getExternalCacheDir() : context.getCacheDir();
}

From source file:Main.java

/**
 * Enable HTTP response cache, available from Android 4.0 onward, using reflection.
 *///from www. j a va  2s.c  o m
static void enableHttpResponseCache(Context context, long cacheSize) {
    try {
        File httpCacheDir = new File(context.getCacheDir(), "http");
        Class.forName("android.net.http.HttpResponseCache").getMethod("install", File.class, long.class)
                .invoke(null, httpCacheDir, cacheSize);
    } catch (Exception httpResponseCacheNotAvailable) {
        // Do nothing, user is using a version prior to 4.0
    }
}

From source file:Main.java

public static File saveStreamToCacheFile(Context context, InputStream inputStream, String name) {
    String FilePath = context.getCacheDir().getAbsolutePath() + name;

    return saveStreamToFile(inputStream, FilePath);
}

From source file:Main.java

public static File extractAssetToFile(Context context, String file) {
    File cacheFile = new File(context.getCacheDir(), file);
    try {//w w w  . j a  v a2  s. c  o  m
        InputStream inputStream = context.getAssets().open(file);
        try {
            FileOutputStream outputStream = new FileOutputStream(cacheFile);
            try {
                byte[] buf = new byte[1024];
                int len;
                while ((len = inputStream.read(buf)) > 0) {
                    outputStream.write(buf, 0, len);
                }
            } finally {
                outputStream.close();
            }
        } finally {
            inputStream.close();
        }
    } catch (IOException e) {
        e.printStackTrace();
        return null;
    }
    return cacheFile;
}

From source file:Main.java

public static void saveBitmapToCacheDir(Context context, Bitmap bitmap, String name) {
    try {//w w w  . ja  v a2 s  .co  m
        File file = new File(context.getCacheDir(), name);
        if (file.exists()) {
            file.delete();
        }
        FileOutputStream fos = context.openFileOutput(name, MODE_PRIVATE);
        bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
        fos.flush();
        fos.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:Main.java

public static void save2Cache(Context context, String cover, Bitmap bitmap) {
    File file = new File(context.getCacheDir(), cover + ".png");
    FileOutputStream fileOutputStream = null;
    try {//ww w . jav  a2 s .com
        fileOutputStream = new FileOutputStream(file);
        if (bitmap != null) {
            if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, fileOutputStream)) {
                fileOutputStream.flush();
            }
        }
    } catch (FileNotFoundException e) {
        file.delete();
        e.printStackTrace();
    } catch (IOException e) {
        file.delete();
        e.printStackTrace();
    } finally {
        try {
            fileOutputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

From source file:Main.java

public static File getFile(Context context, Bitmap sourceImg) {
    try {//  ww  w  .j a  va2s  .c o m
        File f = new File(context.getCacheDir(), System.currentTimeMillis() + "temp.jpg");
        f.createNewFile();
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        int options = 100;
        sourceImg.compress(Bitmap.CompressFormat.JPEG, options, bos);
        while (bos.toByteArray().length / 1024 > 100) {
            bos.reset();
            options -= 10;
            sourceImg.compress(Bitmap.CompressFormat.JPEG, options, bos);
        }
        byte[] bitmapdata = bos.toByteArray();
        FileOutputStream fos = new FileOutputStream(f);
        fos.write(bitmapdata);
        fos.flush();
        fos.close();
        return f;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static File getCacheDir(Context context, String dirName) {
    File file = null;/*from www. j  a  v  a2  s  . c  o  m*/
    if (dirName == null) {
        file = context.getCacheDir();
    } else {
        file = new File(context.getCacheDir(), dirName);
    }
    if (!file.exists()) {
        file.mkdirs();
    }
    return file;
}

From source file:Main.java

public static File fileFromAsset(Context context, String assetName) throws IOException {
    File outFile = new File(context.getCacheDir(), assetName + "-pdfview.pdf");
    copy(context.getAssets().open(assetName), outFile);
    return outFile;
}

From source file:Main.java

public static File getCacheDir(Context c) {
    File cacheDir = c.getExternalCacheDir();

    if (null == cacheDir)
        cacheDir = c.getCacheDir();

    if (!cacheDir.exists())
        cacheDir.mkdirs();// w  w w. j av a  2s  .  c  o  m

    return cacheDir;
}