assetsフォルダのファイル利用

assetsフォルダに入れられるファイルサイズは1MBの制限がある。

package com.android.word.net;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import android.app.Activity;
import android.content.res.AssetManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class AndroidWordNetActivity extends Activity {
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  AssetManager as = getResources().getAssets();

  BufferedReader br = null;
  StringBuilder sb = new StringBuilder();

  try {
   try {
    InputStream is = as.open("asset_file.txt");
    br = new BufferedReader(new InputStreamReader(is));

    String str;
    while ((str = br.readLine()) != null) {
     sb.append(str + "\n");
    }
   } finally {
    if (br != null)
     br.close();
   }
  } catch (IOException e) {
   Toast.makeText(this, "読み込み失敗", Toast.LENGTH_SHORT).show();
  }
  TextView label = (TextView) this.findViewById(R.id.textView1);
  label.setText(sb.toString());
 }
}