The file containing the source code shown below is located in the corresponding directory in <sdk>/samples/android-<version>/...
/* * Copyright (C) 2011 The Android开源工程 * * 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.voicemail; import com.example.android.voicemail.common.core.Voicemail; import com.example.android.voicemail.common.core.VoicemailImpl; import com.example.android.voicemail.common.core.VoicemailProviderHelper; import com.example.android.voicemail.common.core.VoicemailProviderHelpers; import com.example.android.voicemail.common.inject.InjectView; import com.example.android.voicemail.common.inject.Injector; import com.example.android.voicemail.common.logging.Logger; import com.example.android.voicemail.common.ui.DialogHelperImpl; import com.example.android.voicemail.common.utils.CloseUtils; import android.app.Activity; import android.app.Dialog; import android.content.Intent; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.provider.MediaStore; import android.util.Pair; import android.view.View; import android.widget.Button; import android.widget.TextView; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; /** * A simple activity that stores user entered voicemail data into voicemail content provider. To be * used as a test voicemail source. */ public class AddVoicemailActivity extends Activity { private static final Logger logger = Logger.getLogger(AddVoicemailActivity.class); private static final SimpleDateFormat DATE_FORMATTER = new SimpleDateFormat("dd/MM/yyyy h:mm"); private static final int REQUEST_CODE_RECORDING = 100; private final DialogHelperImpl mDialogHelper = new DialogHelperImpl(this); /** * This is created in {@link #onCreate(Bundle)}, and needs to be released in * {@link #onDestroy()}. */ private VoicemailProviderHelper mVoicemailProviderHelper; private Uri mRecordingUri; // Mark the views as injectable. These objects are instantiated automatically during // onCreate() by finding the appropriate view that matches the specified resource_id. @InjectView(R.id.start_recording_btn) private Button mStartRec; @InjectView(R.id.save_btn) private Button mSaveButton; @InjectView(R.id.time) private TextView mTime; @InjectView(R.id.provider_package) private TextView mProviderPackage; @InjectView(R.id.mime_type) private TextView mMimeType; @InjectView(R.id.sender_number) private TextView mSenderNumber; @InjectView(R.id.duration) private TextView mDuration; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.add_voicemail); // Inject all objects that are marked by @InjectView annotation. Injector.get(this).inject(); mVoicemailProviderHelper = VoicemailProviderHelpers.createPackageScopedVoicemailProvider(this); setDefaultValues(); // Record voice button. mStartRec.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startRecording(); } }); // Save voicemail button. mSaveButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { storeVoicemail(); } }); } private void storeVoicemail() { try { Pair<Voicemail, Uri> newVoicemail = new Pair<Voicemail, Uri>( buildVoicemailObjectFromUiElements(), mRecordingUri); new InsertVoicemailTask().execute(newVoicemail); } catch (ParseException e) { handleError(e); } } private Voicemail buildVoicemailObjectFromUiElements() throws ParseException { String sender = mSenderNumber.getText().toString(); String dateStr = mTime.getText().toString(); String durationStr = mDuration.getText().toString(); String mimeType = mMimeType.getText().toString(); String sourcePackageName = mProviderPackage.getText().toString(); long time = DATE_FORMATTER.parse(dateStr.trim()).getTime(); long duration = durationStr.length() != 0 ? Long.parseLong(durationStr) : 0; return VoicemailImpl.createForInsertion(time, sender) .setDuration(duration) .setSourcePackage(sourcePackageName) .build(); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); switch (requestCode) { case REQUEST_CODE_RECORDING: handleRecordingResult(resultCode, data); break; default: logger.e("onActivityResult: Unexpected requestCode: " + requestCode); } } @Override protected Dialog onCreateDialog(int id, Bundle bundle) { return mDialogHelper.handleOnCreateDialog(id, bundle); } /** Set default values in the display */ private void setDefaultValues() { // Set time to current time. mTime.setText(DATE_FORMATTER.format(new Date())); // Set provider package to this app's package. mProviderPackage.setText(getPackageName()); } private void startRecording() { Intent recordingIntent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION); startActivityForResult(recordingIntent, REQUEST_CODE_RECORDING); } private void handleRecordingResult(int resultCode, Intent data) { if (resultCode != RESULT_OK) { handleError(new Exception("Failed to do recording. Error Code: " + resultCode)); } Uri uri = data.getData(); logger.d("Received recording URI: " + uri); if (uri != null) { mRecordingUri = uri; mMimeType.setText(getContentResolver().getType(uri)); } } private void handleError(Exception e) { mDialogHelper.showErrorMessageDialog(R.string.voicemail_store_error, e); } /** * An async task that inserts a new voicemail record using a background thread. * The tasks accepts a pair of voicemail object and the recording Uri as the param. * The result returned is the error exception, if any, encountered during the operation. */ private class InsertVoicemailTask extends AsyncTask<Pair<Voicemail, Uri>, Void, Exception> { @Override protected Exception doInBackground(Pair<Voicemail, Uri>... params) { if (params.length > 0) { try { insertVoicemail(params[0].first, params[0].second); } catch (IOException e) { return e; } } return null; } private void insertVoicemail(Voicemail voicemail, Uri recordingUri) throws IOException { InputStream inputAudioStream = recordingUri == null ? null : getContentResolver().openInputStream(recordingUri); Uri newVoicemailUri = mVoicemailProviderHelper.insert(voicemail); logger.i("Inserted new voicemail URI: " + newVoicemailUri); if (inputAudioStream != null) { try { mVoicemailProviderHelper.setVoicemailContent(newVoicemailUri, inputAudioStream, getContentResolver().getType(recordingUri)); } finally { CloseUtils.closeQuietly(inputAudioStream); } } } @Override protected void onPostExecute(Exception error) { if (error == null) { // No error - done. finish(); } else { handleError(error); } } } }