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/*
* 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));
}
}
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