3021e718e2
functionality to insert random filler data in to the database. Change-Id: I632c7c8fea8aceca7b71dab88f3b01ed7ae49a92
256 lines
8.3 KiB
Java
256 lines
8.3 KiB
Java
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.development;
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import android.app.Activity;
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import android.content.ContentResolver;
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import android.content.ContentValues;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.content.BroadcastReceiver;
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import android.database.sqlite.SQLiteConstraintException;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.Environment;
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import android.os.Handler;
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import android.os.Message;
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import android.provider.MediaStore;
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import android.provider.MediaStore.Audio;
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import android.text.Editable;
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import android.text.TextWatcher;
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import android.util.Log;
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import android.view.View;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.TextView;
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import java.util.Random;
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public class MediaScannerActivity extends Activity
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{
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private TextView mTitle;
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private int mNumToInsert = 20;
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private int mArtists;
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private int mAlbums;
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private int mSongs;
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private ContentResolver mResolver;
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private Uri mAudioUri;
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ContentValues mValues[] = new ContentValues[10];
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Random mRandom = new Random();
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StringBuilder mBuilder = new StringBuilder();
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public MediaScannerActivity() {
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}
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/** Called when the activity is first created or resumed. */
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@Override
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public void onCreate(Bundle icicle) {
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super.onCreate(icicle);
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setContentView(R.layout.media_scanner_activity);
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IntentFilter intentFilter = new IntentFilter(Intent.ACTION_MEDIA_SCANNER_STARTED);
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intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
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intentFilter.addDataScheme("file");
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registerReceiver(mReceiver, intentFilter);
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EditText t = (EditText) findViewById(R.id.numsongs);
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t.addTextChangedListener(new TextWatcher() {
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public void afterTextChanged(Editable s) {
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String text = s.toString();
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try {
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mNumToInsert = Integer.valueOf(text);
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} catch (NumberFormatException ex) {
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mNumToInsert = 20;
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}
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setInsertButtonText();
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}
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public void beforeTextChanged(CharSequence s, int start, int count, int after) {
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}
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public void onTextChanged(CharSequence s, int start, int before, int count) {
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}
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});
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mTitle = (TextView) findViewById(R.id.title);
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mResolver = getContentResolver();
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mAudioUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
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for (int i = 0; i < 10; i++) {
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mValues[i] = new ContentValues();
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}
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setInsertButtonText();
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}
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/** Called when the activity going into the background or being destroyed. */
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@Override
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public void onDestroy() {
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unregisterReceiver(mReceiver);
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mInsertHandler.removeMessages(0);
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super.onDestroy();
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}
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private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context context, Intent intent) {
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if (intent.getAction().equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) {
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mTitle.setText("Media Scanner started scanning " + intent.getData().getPath());
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}
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else if (intent.getAction().equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) {
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mTitle.setText("Media Scanner finished scanning " + intent.getData().getPath());
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}
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}
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};
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public void startScan(View v) {
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sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"
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+ Environment.getExternalStorageDirectory())));
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mTitle.setText("Sent ACTION_MEDIA_MOUNTED to trigger the Media Scanner.");
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}
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private void setInsertButtonText() {
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String label = getString(R.string.insertbutton, Integer.valueOf(mNumToInsert));
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Button b = (Button) findViewById(R.id.insertbutton);
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b.setText(label);
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}
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public void insertItems(View v) {
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if (mInsertHandler.hasMessages(0)) {
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mInsertHandler.removeMessages(0);
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setInsertButtonText();
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} else {
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mInsertHandler.sendEmptyMessage(0);
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}
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}
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Handler mInsertHandler = new Handler() {
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@Override
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public void handleMessage(Message msg) {
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if (mNumToInsert-- > 0) {
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addAlbum();
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runOnUiThread(mDisplayUpdater);
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if (!isFinishing()) {
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sendEmptyMessage(0);
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}
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}
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}
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};
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Runnable mDisplayUpdater = new Runnable() {
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public void run() {
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mTitle.setText("Added " + mArtists + " artists, " + mAlbums + " albums, "
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+ mSongs + " songs.");
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}
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};
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// Add one more album (with 10 songs) to the database. This will be a compilation album,
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// with one album artist for the album, and a separate artist for each song.
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private void addAlbum() {
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try {
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String albumArtist = "Various Artists";
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String albumName = getRandomWord(3);
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int baseYear = 1969 + mRandom.nextInt(30);
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for (int i = 0; i < 10; i++) {
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mValues[i].clear();
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String artist = getRandomName();
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final ContentValues map = mValues[i];
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map.put(MediaStore.MediaColumns.DATA,
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"http://bogus/" + albumName + "/" + artist + "_" + i);
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map.put(MediaStore.MediaColumns.TITLE,
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getRandomWord(4) + " " + getRandomWord(2) + " " + (i + 1));
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map.put(MediaStore.MediaColumns.MIME_TYPE, "audio/mp3");
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map.put(Audio.Media.ARTIST, artist);
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map.put("album_artist", albumArtist);
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map.put(Audio.Media.ALBUM, albumName);
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map.put(Audio.Media.TRACK, i + 1);
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map.put(Audio.Media.DURATION, 4*60*1000);
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map.put(Audio.Media.IS_MUSIC, 1);
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map.put(Audio.Media.YEAR, baseYear + mRandom.nextInt(10));
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}
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mResolver.bulkInsert(mAudioUri, mValues);
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mSongs += 10;
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mAlbums++;
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mArtists += 11;
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} catch (SQLiteConstraintException ex) {
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Log.d("@@@@", "insert failed", ex);
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}
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}
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/**
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* Some code to generate random names. This just strings together random
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* syllables, and randomly inserts a modifier between the first
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* and last name.
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*/
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private String[] elements = new String[] {
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"ab", "am",
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"bra", "bri",
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"ci", "co",
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"de", "di", "do",
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"fa", "fi",
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"ki",
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"la", "li",
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"ma", "me", "mi", "mo",
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"na", "ni",
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"pa",
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"ta", "ti",
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"vi", "vo"
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};
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private String getRandomWord(int len) {
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int max = elements.length;
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mBuilder.setLength(0);
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for (int i = 0; i < len; i++) {
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mBuilder.append(elements[mRandom.nextInt(max)]);
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}
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char c = mBuilder.charAt(0);
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c = Character.toUpperCase(c);
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mBuilder.setCharAt(0, c);
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return mBuilder.toString();
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}
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private String getRandomName() {
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boolean longfirst = mRandom.nextInt(5) < 3;
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String first = getRandomWord(longfirst ? 3 : 2);
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String last = getRandomWord(3);
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switch (mRandom.nextInt(6)) {
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case 1:
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if (!last.startsWith("Di")) {
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last = "di " + last;
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}
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break;
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case 2:
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last = "van " + last;
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break;
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case 3:
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last = "de " + last;
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break;
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}
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return first + " " + last;
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}
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}
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