Record Web Start Time

I try Date Class. I create app of "record web start time" to check Date Class.
The app have the time of pushing "Web Start" button.

I get now time.

SimpleDateFormat  sdf = new SimpleDateFormat("yyyy'　/'MM'/'dd'/ 'HH':'mm':'ss':'");  
Date  date = new Date();  

I get previous time of pushing "Web Start" button. I use SharedPreferences Class.

SharedPreferences pref = getSharedPreferences("pref", MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
String votetime = pref.getString("votetime", sdf.format(date));

I preview previous time.

TextView prevvotetime = (TextView)findViewById(R.id.text1);
prevvotetime.setText(votetime);

If pushing "Web Start" button, I update time.
set listener.

Button votebutton = (Button)findViewById(R.id.button1);
votebutton.setOnClickListener(new View.OnClickListener() {

 @Override
 public void onClick(View v) {
 }
});

I update time and save time to SharedPreferences .

SimpleDateFormat  sdf = new SimpleDateFormat("yyyy'　/'MM'/'dd'/ 'HH':'mm':'ss':'");  
Date  date = new Date(); 

SharedPreferences pref = getSharedPreferences("pref", MODE_WORLD_READABLE|MODE_WORLD_WRITEABLE);
Editor e = pref.edit();
e.putString("votetime", sdf.format(date));
e.commit();

source code is here.
apk is here.
Please suggest your android issue by twitter or mail, I would try to clear up your issue.

Web Browser

I try WebView class.

donwload apk.

set setWebViewClient for no intent WEB BROWSER.

WebView w = (WebView)findViewById(R.id.webView1);
w.setWebViewClient(new WebViewClient());

enable javascript.

w.getSettings().setJavaScriptEnabled(true);

add Zoom Control

w.getSettings().setBuiltInZoomControls(true);

If app finish to load web page, call callback. I register callback.

w.setWebViewClient(new webclient());

and callback function by WebViewClient. If call onPageFinish, app update url text and app focus web page.

public class webclient extends WebViewClient {
    @Override
    public void onPageFinished(WebView view, String url) {
        setProgressBarIndeterminateVisibility(false);
        WebView w = (WebView)findViewById(R.id.webView1);
  TextView t = (TextView)findViewById(R.id.editText1);
  String u = w.getUrl();
  t.setText(u);
  w.requestFocus();
    }
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
        setProgressBarIndeterminateVisibility(true);
    } 
}

If user push W button, app hide ime.

Button b = (Button)findViewById(R.id.button1);
b.setOnClickListener( new View.OnClickListener() {
 @Override
 public void onClick(View v) {
        EditText e = (EditText)findViewById(R.id.editText1);
        if (e.isFocused()) {
         WebView w = (WebView)findViewById(R.id.webView1);
  mI.hideSoftInputFromWindow(w.getWindowToken(), 0);

If user push W button, app jump url inputted by user.
If input text is not ".", app think text is search word.
If input text is not "http://", app add "http://" to url.

TextView t = (TextView)findViewById(R.id.editText1);
if (!t.getText().toString().matches(".")){
 w.loadUrl("http://www.google.co.jp/search?q=" + t.getText().toString());
} else if (!t.getText().toString().startsWith("http://")) {
 w.loadUrl("http://" + t.getText().toString());
} else {
 w.loadUrl(t.getText().toString());
}

If user input url text, app foucs text all.

EditText e = (EditText)findViewById(R.id.editText1);
e.setOnFocusChangeListener(new View.OnFocusChangeListener() {
 
 @Override
 public void onFocusChange(View v, boolean hasFocus) {
  if (hasFocus == true) {
         EditText e = (EditText)findViewById(R.id.editText1);
   e.selectAll();
  }
 }
});

If user push back button, app go back's web page.

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
 if (keyCode == KeyEvent.KEYCODE_BACK) {
        WebView w = (WebView)findViewById(R.id.webView1);
        w.goBack();
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

source code is here. Please suggest your android issue by twitter or mail, I would try to clear up your issue.

analysis mp4 file

I did mediaRecorder and ParcelFileDescriptor　class. and I analysis transfered file.

it is the blog.

I found description for ISO 14496-12 "ISO base media file format".
but analysis is difficult.

it is result.
xls file

ScaleImage

I did to scale Image on there.
But it is not scale on center, it is to scale on position( 0, 0).

I try to scale on center.

default position is (0. 0).
first, position move center at image

float mx = canvas.getWidth();
float my = canvas.getHeight();
canvas.translate(mx/2, my/2);

second, scale it.

canvas.scale(mScaleFactor, mScaleFactor);

final, take back.

canvas.translate(-(mx/2), -(my/2));

it is cool. source code is here. Please suggest your android issue by twitter or mail, I would try to clear up your issue.

move image

I try to move image in android.
I prepare the image.

int resid = context.getResources().getIdentifier("s066", "drawable", context.getPackageName());
mImage = context.getResources().getDrawable(resid);
mImage.setBounds(0, 0, mImage.getIntrinsicWidth(), mImage.getIntrinsicHeight() );

I prepare GestureDetector for getting onScroll event.

mGestureDetector = new GestureDetector(context, this);

I get touch event.

mGestureDetector.onTouchEvent(ev);

onScroll get moving position and call invalidate() for onDrow.

@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
  float distanceY) {
 Log.d("book", "distanceX=" + distanceX + "  distanceY=" + distanceY);
 mTranslateX -= distanceX;
 mTranslateY -=distanceY;
 invalidate();
 
 return false;
}

onDrow.

@Override
public void onDraw(Canvas canvas) {
 super.onDraw(canvas);
 
 canvas.save();
 canvas.translate(mTranslateX, mTranslateY);
 mImage.draw(canvas);
 
 canvas.restore();
}

source code is here. Please suggest your android issue by twitter or mail, I would try to clear up your issue.

ScaleGestureDetector

I referred this site.

I create custom view.

public class ScaleGestureDetectorView extends View {

I prepare image for Drawable. I prepare s093 named jpeg image.

int resid = context.getResources().getIdentifier("s093", "drawable", context.getPackageName());
Drawable mImage;
mImage = context.getResources().getDrawable(resid);
mImage.setBounds(0, 0, width, height );

I prepare ScaleGestureDetector class.

mScaleGestureDetector = new ScaleGestureDetector(context, mSimpleListener);

call onDraw() by invalidate().

public void onDraw(Canvas canvas) {
 super.onDraw(canvas);
  
 canvas.save();
 canvas.scale(mScaleFactor, mScaleFactor);
 mImage.draw(canvas);
  
 canvas.restore();

input event to ScaleGestureDetector at onTouchEvent.

public boolean onTouchEvent(MotionEvent ev) {
    mScaleGestureDetector.onTouchEvent(ev);
    return true;
}

I prepare ScaleGestureDetector.SimpleOnScaleGestureListener

public void onScaleEnd(ScaleGestureDetector detector) {
 Log.d("ges", "onScaleEnd "+ detector.getScaleFactor());
 mScaleFactor *= detector.getScaleFactor();
 invalidate();
 super.onScaleEnd(detector);
}

source code is here. Please suggest your android issue by twitter or mail, I would try to clear up your issue.

OnGestureListener

If you try my sample, you need image and import image at res/drawable-hdpi .

I try onGestureListener interface.
I prepare GestureDetector.

mGestureDetector = new GestureDetector(this, this);

I input onTouchEvent parameter.

public boolean onTouchEvent(MotionEvent ev) {
 mGestureDetector.onTouchEvent(ev);
 return false;
}

I prepare onFling at onGestureListener.

public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {

If velocityY smaller than 0, next page.

if (velocityY < 0) {//right
 mPagenumber++;

If velocityY bigger than 0, prev page.

}else {//left
 mPagenumber--;

select image from Resource. I prepare image name "sxxx.jpg". xxx is number. exsapme s001.jpg, s002.jpg, s003.jpg....s020.jpg...
I set selected image to view.

Resources res = getResources();
int resid = res.getIdentifier(filename, "drawable", getPackageName());
ImageView img = (ImageView)findViewById(R.id.imageView1);
img.setImageResource(resid);

source code is here. Please suggest your android issue by twitter or mail, I would try to clear up your issue.

MediaRecoder ParcelFileDescriptor

I try to record camera image in other pc storage.
I use network for transfer data.

I refered this site.

I prepared ParcelFileDescriptor and socket.

ParcelFileDescriptor pfd = null;
Socket  socket = null;

I set for network setting.
192.168.1.2 is my pc ip address.

String hostname = "192.168.1.2";
int port = 5000;

I try to create socket

try {
 socket = new Socket(InetAddress.getByName(hostname), port);
 pfd = ParcelFileDescriptor.fromSocket(socket);
 
} catch (UnknownHostException e1) {
 // TODO Auto-generated catch block
 e1.printStackTrace();
} catch (IOException e1) {
 // TODO Auto-generated catch block
 e1.printStackTrace();
}

I try to set ParcelFileDescriptor to MediaRecorder.

_mediarecorder = new MediaRecorder();
_mediarecorder.setOutputFile(pfd.getFileDescriptor());

Android source code is here.
Next Server side program. this program do in my pc(192.168.1.2).
and this is java language.
I create server socket. port number need to be same between client and server.

ServerSocket svsock = new ServerSocket(5000);

I prepare file.

outFile = new FileWriter("xyz" + i + ".mp4");

I wait client(Android) connecting by acccept.

Socket sock = svsock.accept();

If client(Android) connected, I use accept socket sock.

sock.getInputStream()

I prepare BufferedReader and BufferedWriter, and I write received data to the file.

BufferedReader in = new BufferedReader(new InputStreamReader(sock.getInputStream()));
BufferedWriter wt = new BufferedWriter(outFile);
while(sock.isConnected()) {
 int line = in.read();
 if (line == -1) {
  break;
 }
 wt.write(line);
}

If client(Android) connecting finished, I close.

outFile.close();
sock.close();

server sid source code is here.
IMPORTANT, First server side do, Next Client(Android) do.

server side recive file analysis.

Please suggest your android issue by twitter or mail, I would try to clear up your issue.

client Socket

I send data by socket.
I get socket.

Socket sk = null;
sk = new Socket(addr, 5000);

I prepare BufferedWriter for getOutputStream().

BufferedWriter wBuffer = null;
wBuffer = new BufferedWriter(new OutputStreamWriter(sk.getOutputStream()));

data write and flush and close for sending.

wBuffer.write("testtesttest");
Log.d("socket", "write");
wBuffer.flush();
Log.d("socket", "flush");
wBuffer.close();

I got message "testtesttest" at server side.
source code is here.
Please suggest your android issue by twitter or mail, I would try to clear up your issue.

Call

I try intent for call the number.
I prepare button for call. and prepare listener.
I intent ACTION_CALL.

Button b= (Button)findViewById(id.button1);
b.setOnClickListener(new View.OnClickListener() {
 
 @Override
 public void onClick(View v) {
        Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:117"));
        startActivity(intent);
 }
});

If you pushed button, phone call 117. 117 is "you get time in japan".
source code is here. Please suggest your android issue by twitter or mail, I would try to clear up your issue.