diff options
Diffstat (limited to 'samples/SupportLeanbackShowcase/app/src/main/java/android/support/v17/leanback/supportleanbackshowcase/utils/Utils.java')
-rw-r--r-- | samples/SupportLeanbackShowcase/app/src/main/java/android/support/v17/leanback/supportleanbackshowcase/utils/Utils.java | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/samples/SupportLeanbackShowcase/app/src/main/java/android/support/v17/leanback/supportleanbackshowcase/utils/Utils.java b/samples/SupportLeanbackShowcase/app/src/main/java/android/support/v17/leanback/supportleanbackshowcase/utils/Utils.java new file mode 100644 index 000000000..4416cbe49 --- /dev/null +++ b/samples/SupportLeanbackShowcase/app/src/main/java/android/support/v17/leanback/supportleanbackshowcase/utils/Utils.java @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2014 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except + * in compliance with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software distributed under the License + * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express + * or implied. See the License for the specific language governing permissions and limitations under + * the License. + */ + +package android.support.v17.leanback.supportleanbackshowcase.utils; + +import android.content.ContentResolver; +import android.content.Context; +import android.net.Uri; + +import java.io.IOException; +import java.io.InputStream; + +/** + * A collection of utility methods, all static. + */ +public class Utils { + + public static int convertDpToPixel(Context ctx, int dp) { + float density = ctx.getResources().getDisplayMetrics().density; + return Math.round((float) dp * density); + } + + /** + * Will read the content from a given {@link InputStream} and return it as a {@link String}. + * + * @param inputStream The {@link InputStream} which should be read. + * @return Returns <code>null</code> if the the {@link InputStream} could not be read. Else + * returns the content of the {@link InputStream} as {@link String}. + */ + public static String inputStreamToString(InputStream inputStream) { + try { + byte[] bytes = new byte[inputStream.available()]; + inputStream.read(bytes, 0, bytes.length); + String json = new String(bytes); + return json; + } catch (IOException e) { + return null; + } + } + + public static Uri getResourceUri(Context context, int resID) { + return Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + + context.getResources().getResourcePackageName(resID) + '/' + + context.getResources().getResourceTypeName(resID) + '/' + + context.getResources().getResourceEntryName(resID)); + } +} |