我第一次使用GoogleApiClient并希望在点击应用中的分享按钮时将所有短信上传到Google云端硬盘。但数据未在驱动器上上传。
MainActivity：
public class MainActivity extends AppCompatActivity {
RecyclerView rv;
SmsAdapter adapter;
FloatingActionButton fab;
Cursor c;
ExportTask task;
ArrayList<CustomSms> smslistSearch;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
smslistSearch = new ArrayList<>();
rv = (RecyclerView) findViewById(R.id.messages_view);
LinearLayoutManager llm = new LinearLayoutManager(MainActivity.this);
rv.setLayoutManager(llm);
fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent i =new Intent(MainActivity.this,SendSms.class);
startActivity(i);
}
});
}
@Override
protected void onResume() {
super.onResume();
try {
final ArrayList<CustomSms> smslist, smsgrouplist;
smslist = new ArrayList<>();
smsgrouplist = new ArrayList<>();
//Fetch inobx sms message
c = getContentResolver().query(SmsApplication.INBOX_URI, null, null, null, null);
while (c.moveToNext()) {
String address = c.getString(c.getColumnIndexOrThrow("address"));
String date = c.getString(c.getColumnIndexOrThrow("date"));
String body = c.getString(c.getColumnIndexOrThrow("body"));
smslist.add(new CustomSms(address, date, body));
}
smslistSearch = smslist;
Map<String, CustomSms> map = new LinkedHashMap<>();
for (CustomSms ays : smslist) {
CustomSms existingValue = map.get(ays.address);
if(existingValue == null){
map.put(ays.address, ays);
}
}
smsgrouplist.clear();
smsgrouplist.addAll(map.values());
adapter = new SmsAdapter(MainActivity.this);
adapter.updateList(smsgrouplist);
rv.setAdapter(adapter);
rv.addOnItemTouchListener(
new RecyclerItemClickListener(getApplicationContext(), new RecyclerItemClickListener.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
// TODO Handle item click
ArrayList<CustomSms> smsinsidegroup = new ArrayList<CustomSms>();
String n = smsgrouplist.get(position).address;
for (int i = 0; i < smslist.size(); i++) {
if(smslist.get(i).address.equals(n))
smsinsidegroup.add(smslist.get(i));
}
Intent i = new Intent(MainActivity.this, ReadAllSms.class);
i.putParcelableArrayListExtra("messages", smsinsidegroup);
startActivity(i);
}
})
);
}
catch (Exception e)
{
e.printStackTrace();
}
}
class ExportTask extends AsyncTask<Void, Integer, Uri> {
ProgressDialog pDialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Exporting to file ...");
pDialog.setIndeterminate(false);
pDialog.setMax(100);
pDialog.setProgress(0);
pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pDialog.setCancelable(false);
pDialog.show();
}
@Override
protected Uri doInBackground(Void... params) {
if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {
FileOutputStream fos = null;
try {
File f = new File(Environment.getExternalStorageDirectory(), "SmsBackUp.txt");
fos = new FileOutputStream(f);
int count = c.getCount(), i = 0;
StringBuilder sb = new StringBuilder();
if (c.moveToFirst()) {
do {
sb.append(c.getString(c.getColumnIndex("address")))
.append("\n");
sb.append(c.getString(c.getColumnIndex("body")))
.append("\n");
sb.append("\n");
publishProgress(++i*100/count);
} while (!isCancelled() && c.moveToNext());
}
fos.write(sb.toString().getBytes());
return Uri.fromFile(f);
} catch (Exception e) {
} finally {
if (fos != null) {
try {
fos.close();
} catch (IOException e) {}
}
}
}
return null;
}
@Override
protected void onProgressUpdate(Integer... values) {
super.onProgressUpdate(values);
pDialog.setProgress(values[0]);
}
@Override
protected void onPostExecute(Uri result) {
super.onPostExecute(result);
pDialog.dismiss();
if (result == null) {
Toast.makeText(MainActivity.this, "Export task failed!",
Toast.LENGTH_LONG).show();
return;
}
Intent i = new Intent(MainActivity.this,UploadData.class);
startActivity(i);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_search) {
Intent i = new Intent(MainActivity.this,SearchActivity.class);
i.putParcelableArrayListExtra("search", smslistSearch);
startActivity(i);
return true;
}
if (id == R.id.action_share) {
/*Intent i = new Intent(MainActivity.this,UploadData.class);
startActivity(i);*/
task = new ExportTask();
task.execute();
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
protected void onPause() {
if (task != null) {
task.cancel(false);
task.pDialog.dismiss();
}
super.onPause();
}
}
UploadData：
public class UploadData extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
private static final String TAG = "upload_file";
private static final int REQUEST_CODE = 101;
private File textFile;
private GoogleApiClient googleApiClient;
public static String drive_id;
public static DriveId driveID;
FrameLayout rl;
TextView success;
ProgressBar progressBar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_upload_data);
rl = (FrameLayout) findViewById(R.id.frame);
success = (TextView) findViewById(R.id.success);
progressBar = (ProgressBar) findViewById(R.id.progressBar);
View root = rl.getRootView();
root.setBackgroundColor(getResources().getColor(R.color.colorBackOrig));
textFile = new File(Environment.getExternalStorageDirectory(), "SmsBackUp.txt");
buildGoogleApiClient();
}
@Override
protected void onStart() {
super.onStart();
Log.i(TAG, "connecting...");
googleApiClient.connect();
}
protected void onStop() {
super.onStop();
if (googleApiClient != null) {
Log.i(TAG, "disConnecting...");
googleApiClient.disconnect();
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode,
Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_CODE && resultCode == RESULT_OK) {
Log.i(TAG, "In onActivityResult() - connecting...");
googleApiClient.connect();
}
}
@Override
public void onConnected(Bundle bundle) {
Log.i(TAG, "in onConnected() - connected");
Drive.DriveApi.newDriveContents(googleApiClient)
.setResultCallback(driveContentsCallback);
}
@Override
public void onConnectionSuspended(int cause) {
switch (cause) {
case 1:
Log.i(TAG, "Connection suspended - Cause: " + "Service disconnected");
break;
case 2:
Log.i(TAG, "Connection suspended - Cause: " + "Connection lost");
break;
default:
Log.i(TAG, "Connection suspended - Cause: " + "Unknown");
break;
}
}
final private ResultCallback<DriveApi.DriveContentsResult> driveContentsCallback = new
ResultCallback<DriveApi.DriveContentsResult>() {
@Override
public void onResult(DriveApi.DriveContentsResult result) {
if (!result.getStatus().isSuccess()) {
Log.i(TAG, "Error creating the new file of contents");
return;
}
final DriveContents driveContents = result.getDriveContents();
new Thread() {
@Override
public void run() {
OutputStream outputStream = driveContents.getOutputStream();
addTextfileToOutputStream(outputStream);
MetadataChangeSet changeSet = new MetadataChangeSet.Builder()
.setTitle("SmsBackup")
.setMimeType("text/plain")
.setDescription("This is a text file uploaded from device")
.setStarred(true).build();
Drive.DriveApi.getRootFolder(googleApiClient)
.createFile(googleApiClient, changeSet, driveContents)
.setResultCallback(fileCallback);
}
}.start();
}
};
private void addTextfileToOutputStream(OutputStream outputStream) {
byte[] buffer = new byte[1024];
int bytesRead;
try {
BufferedInputStream inputStream = new BufferedInputStream(
new FileInputStream(textFile));
while ((bytesRead = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, bytesRead);
}
} catch (IOException e) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),"Error",Toast.LENGTH_LONG).show();
}
});
e.printStackTrace();
}
}
final private ResultCallback<DriveFolder.DriveFileResult> fileCallback = new
ResultCallback<DriveFolder.DriveFileResult>() {
@Override
public void onResult(DriveFolder.DriveFileResult result) {
if (!result.getStatus().isSuccess()) {
Toast.makeText(UploadData.this,
"Error adding file to Drive", Toast.LENGTH_SHORT).show();
return;
}
Toast.makeText(UploadData.this,
"File successfully added to Drive", Toast.LENGTH_SHORT).show();
showProgress(false);
rl.setBackgroundColor(getResources().getColor(R.color.colorBack));
View root = rl.getRootView();
root.setBackgroundColor(getResources().getColor(R.color.colorBack));
success.setVisibility(View.VISIBLE);
final PendingResult<DriveResource.MetadataResult> metadata
= result.getDriveFile().getMetadata(googleApiClient);
metadata.setResultCallback(new ResultCallback<DriveResource.MetadataResult>() {
@Override
public void onResult(DriveResource.MetadataResult metadataResult) {
Metadata data = metadataResult.getMetadata();
drive_id = data.getDriveId().encodeToString();
driveID = data.getDriveId();
}
});
}
};
@Override
public void onConnectionFailed(ConnectionResult result) {
if (!result.hasResolution()) {
GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), this, 0).show();
return;
}
try {
result.startResolutionForResult(this, REQUEST_CODE);
} catch (IntentSender.SendIntentException e) {
}
}
private void buildGoogleApiClient() {
if (googleApiClient == null) {
googleApiClient = new GoogleApiClient.Builder(this)
.addApi(Drive.API)
.addScope(Drive.SCOPE_FILE)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
}
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
private void showProgress(final boolean show) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
progressBar.setVisibility(show ? View.VISIBLE : View.GONE);
progressBar.animate().setDuration(shortAnimTime).alpha(
show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
progressBar.setVisibility(show ? View.VISIBLE : View.GONE);
}
});
} else {
progressBar.setVisibility(show ? View.VISIBLE : View.GONE);
}
}
}
答案 0 :(得分：0)
您可能想要检查一下work with File Contents的方式，首先您可能需要检查您设置的变量textFile上是否有值。
下面的示例说明了如何将“hello world”附加到DriveContents。
try {
ParcelFileDescriptor parcelFileDescriptor = contents.getParcelFileDescriptor();
FileInputStream fileInputStream = new FileInputStream(parcelFileDescriptor
.getFileDescriptor());
// Read to the end of the file.
fileInputStream.read(new byte[fileInputStream.available()]);
// Append to the file.
FileOutputStream fileOutputStream = new FileOutputStream(parcelFileDescriptor
.getFileDescriptor());
Writer writer = new OutputStreamWriter(fileOutputStream);
writer.write("hello world");
} catch (IOException e) {
e.printStackTrace();
}
您可能想要查看相关的SO问题 - Upload text file to Google Drive using Android。问题的答案提醒OP关于如何用内容提供文件。
最后，您可能需要查看此github。此代码显示如何将聊天内容插入文件并将其保存到驱动器中。
希望这有帮助。