Android Utililty Methods Context Get

List of utility methods to do Context Get

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Description

The list of methods to do Context Get are organized into topic(s).

Method

voidreadRaw(Context ctx, int res_id)
Method to read in a text file placed in the res/raw directory of the application. 
InputStream is = ctx.getResources().openRawResource(res_id);
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr, 8192); 
try {
    String test;
    while (true) {
        test = br.readLine();
        if (test == null)
...
DrawableloadImageFromAsset(Context context, String id)
load Image From Asset 
try {
    Resources resources = context.getResources();
    AssetManager am = resources.getAssets();
    InputStream ims = am.open(id + ".png");
    Drawable d = Drawable.createFromStream(ims, null);
    return d;
} catch (IOException ex) {
    return null;
...
booleanhasTelephony(@Nonnull Context context)
Checks if the device has the PackageManager#FEATURE_TELEPHONY . 
final PackageManager manager = context.getPackageManager();
return manager.hasSystemFeature(PackageManager.FEATURE_TELEPHONY);
StringgetDataColumn(Context context, Uri uri, String selection, String[] selectionArgs)
Get the value of the data column for this Uri. 
Cursor cursor = null;
final String column = "_data";
final String[] projection = { column };
try {
    cursor = context.getContentResolver().query(uri, projection,
            selection, selectionArgs, null);
    if (cursor != null && cursor.moveToFirst()) {
        final int column_index = cursor
...
StringgetPath(final Context context, final Uri uri)
Get a file path from a Uri. 
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
    if (DocumentsContract.isDocumentUri(context, uri)) {
        if (isExternalStorageDocument(uri)) {
            final String docId = DocumentsContract
                    .getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];
            if ("primary".equalsIgnoreCase(type)) {
...
StringcachedJson(Context context, URI uri)
cached Json 
try {
    StringBuffer json = new StringBuffer();
    BufferedReader in = new BufferedReader(new InputStreamReader(
            context.openFileInput(String.format("%d.json",
                    uri.hashCode()))));
    String line = null;
    while ((line = in.readLine()) != null) {
        json.append(line);
...
voidcacheJson(Context context, URI uri, String jsonSource)
cache Json 
try {
    PrintWriter out = new PrintWriter(context.openFileOutput(
            String.format("%d.json", uri.hashCode()),
            Context.MODE_PRIVATE));
    out.write(jsonSource);
    out.close();
} catch (IOException ex) {
    Log.e(TAG, String.format("error caching %s", uri));
...
SharedPreferencesgetSharedPreferences(Context context)
get Shared Preferences 
return PreferenceManager.getDefaultSharedPreferences(context);
FilegetAndroidDBDir(Context context)
get Android DB Dir 
return new File(Environment.getDataDirectory(), "//data//"
        + context.getPackageName() + "//databases//");
intgetAnimId(Context paramContext, String paramString)
get Anim Id 
return paramContext.getResources().getIdentifier(paramString,
        "anim", paramContext.getPackageName());