应用源码之MIUI录音机.zip

/* * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) * * 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 net.micode.soundrecorder; import android.app.Activity; import android.app.AlertDialog; import android.app.NotificationManager; import android.content.BroadcastReceiver; import android.content.ContentResolver; import android.content.ContentValues; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.IntentFilter; import android.content.res.Configuration; import android.content.res.Resources; import android.database.Cursor; import android.media.AudioManager; import android.media.MediaRecorder; import android.media.SoundPool; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.provider.MediaStore; import android.text.TextUtils; import android.util.Log; import android.view.KeyEvent; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup.LayoutParams; import android.widget.Button; import android.widget.ImageButton; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.SeekBar; import android.widget.TextView; import android.widget.Toast; import java.io.File; import java.text.SimpleDateFormat; import java.util.Date; import java.util.HashSet; public class SoundRecorder extends Activity implements Button.OnClickListener, Recorder.OnStateChangedListener { private static final String TAG = "SoundRecorder"; private static final String RECORDER_STATE_KEY = "recorder_state"; private static final String SAMPLE_INTERRUPTED_KEY = "sample_interrupted"; private static final String MAX_FILE_SIZE_KEY = "max_file_size"; private static final String AUDIO_3GPP = "audio/3gpp"; private static final String AUDIO_AMR = "audio/amr"; private static final String AUDIO_ANY = "audio/*"; private static final String ANY_ANY = "*/*"; private static final String FILE_EXTENSION_AMR = ".amr"; private static final String FILE_EXTENSION_3GPP = ".3gpp"; public static final int BITRATE_AMR = 2 * 1024 * 8; // bits/sec public static final int BITRATE_3GPP = 20 * 1024 * 8; // bits/sec private static final int SEEK_BAR_MAX = 10000; private static final long WHEEL_SPEED_NORMAL = 1800; private static final long WHEEL_SPEED_FAST = 300; private static final long WHEEL_SPEED_SUPER_FAST = 100; private static final long SMALL_WHEEL_SPEED_NORMAL = 900; private static final long SMALL_WHEEL_SPEED_FAST = 200; private static final long SMALL_WHEEL_SPEED_SUPER_FAST = 200; private String mRequestedType = AUDIO_ANY; private boolean mCanRequestChanged = false; private Recorder mRecorder; private RecorderReceiver mReceiver; private boolean mSampleInterrupted = false; private boolean mShowFinishButton = false; private String mErrorUiMessage = null; // Some error messages are displayed // in the UI, not a dialog. This // happens when a recording // is interrupted for some reason. private long mMaxFileSize = -1; // can be specified in the intent private RemainingTimeCalculator mRemainingTimeCalculator; private String mTimerFormat; private SoundPool mSoundPool; private int mPlaySound; private int mPauseSound; private HashSet<String> mSavedRecord; private long mLastClickTime; private int mLastButtonId; private final Handler mHandler = new Handler(); private Runnable mUpdateTimer = new Runnable() { public void run() { if (!mStopUiUpdate) { updateTimerView(); } } }; private Runnable mUpdateSeekBar = new Runnable() { @Override public void run() { if (!mStopUiUpdate) { updateSeekBar(); } } }; private Runnable mUpdateVUMetur = new Runnable() { @Override public void run() { if (!mStopUiUpdate) { updateVUMeterView(); } } }; private ImageButton mNewButton; private ImageButton mFinishButton; private ImageButton mRecordButton; private ImageButton mStopButton; private ImageButton mPlayButton; private ImageButton mPauseButton; private ImageButton mDeleteButton; private WheelImageView mWheelLeft; private WheelImageView mWheelRight; private WheelImageView mSmallWheelLeft; private WheelImageView mSmallWheelRight; private RecordNameEditText mFileNameEditText; private LinearLayout mTimerLayout; private LinearLayout mVUMeterLayout; private LinearLayout mSeekBarLayout; private TextView mStartTime; private TextView mTotalTime; private SeekBar mPlaySeekBar; private BroadcastReceiver mSDCardMountEventReceiver = null; private int mPreviousVUMax; private boolean mStopUiUpdate; @Override public void onCreate(Bundle icycle) { super.onCreate(icycle); initInternalState(getIntent()); setContentView(R.layout.main); mRecorder = new Recorder(this); mRecorder.setOnStateChangedListener(this); mReceiver = new RecorderReceiver(); mRemainingTimeCalculator = new RemainingTimeCalculator(); mSavedRecord = new HashSet<String>(); initResourceRefs(); setResult(RESULT_CANCELED); registerExternalStorageListener(); if (icycle != null) { Bundle recorderState = icycle.getBundle(RECORDER_STATE_KEY); if (recorderState != null) { mRecorder.restoreState(recorderState); mSampleInterrupted = recorderState.getBoolean(SAMPLE_INTERRUPTED_KEY, false); mMaxFileSize = recorderState.getLong(MAX_FILE_SIZE_KEY, -1); } } setVolumeControlStream(AudioManager.STREAM_MUSIC); if (mShowFinishButton) { // reset state if it is a recording request mRecorder.reset(); resetFileNameEditText(); } } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); boolean preShowFinishButton = mShowFinishButton; initInternalState(intent); if (mShowFinishButton || preShowFinishButton != mShowFinishButton) { // reset state if it is a recording request or state is changed mRecorder.reset(); resetFileNameEditText(); } } private void initInternalState(Intent i) { mRequestedType = AUDIO_ANY; mShowFinishButton = false; if (i != null) { String s = i.getType(); if (AUDIO_AMR.equals(s) || AUDIO_3GPP.equals(s) || AUDIO_ANY.equals(s) || ANY_ANY.equals(s)) { mRequestedType = s; mShowFinishButton = true; } else if (s != null) { // we only support amr and 3gpp formats right now setResult(RESULT_CANCELED); finish(); return; } final String EXTRA_MAX_BYTES = android.provider.MediaStore.Audio.Media.EXTRA_MAX_BYTES;