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);
}
}
}
}