/*
 * Copyright (C) 2007 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 com.example.android.apis.content

// Need the following import to get access to the app resources, since this
// class is in a sub-package.
import com.example.android.apis.R

import _root_.android.app.Activity
import _root_.android.os.Bundle
import _root_.android.widget.TextView

import java.io.IOException
import java.io.InputStream


/**
 * Demonstration of styled text resources.
 */
class ReadAsset extends Activity {
  override protected def onCreate(savedInstanceState: Bundle) {
    super.onCreate(savedInstanceState)

    // See assets/res/any/layout/styled_text.xml for this
    // view layout definition.
    setContentView(R.layout.read_asset)

    // Programmatically load text from an asset and place it into the
    // text view.  Note that the text we are loading is ASCII, so we
    // need to convert it to UTF-16.
    try {
      val is = getAssets open "read_asset.txt"

      // We guarantee that the available method returns the total
      // size of the asset...  of course, this does mean that a single
      // asset can't be more than 2 gigs.
      val size = is.available

      // Read the entire asset into a local byte buffer.
      val buffer = new Array[Byte](size)
      is.read(buffer)
      is.close()

      // Convert the buffer into a string.
      val text = new String(buffer)

      // Finally stick the string into the text view.
      val tv = findViewById(R.id.text).asInstanceOf[TextView]
      tv setText text
    } catch {
      case e: IOException =>
        // Should never happen!
        throw new RuntimeException(e)
    }
  }
}

