setDataSource from passed string not detected - string

Question

I created a listview which contain a url such as abc:554/user=admin&password=&channel=1
When I click the listview,the url would be passed onto the next class and use it for setDataSource.But the problem I am having is that setDataSource does not detect the url.I have tried to hardcode the url and use Toast to display the url when it is trying to connect and it works.But when passing the string,nothing happens.Here are my code
1st class trying to pass the string
OnItemClickListener getURLOnItemClickListener
= new OnItemClickListener(){
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
String clickedFile = (String) parent.getItemAtPosition(position);
getURL(clickedFile);
}
};
void getURL(final String file){
if (clickAble == true){
FileInputStream fis;
String content = "";
try {
fis = openFileInput(file);
byte[] input = new byte[fis.available()];
while (fis.read(input) != -1) {}
content += new String(input);
//Toast.makeText(getBaseContext(),content,Toast.LENGTH_SHORT).show();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
Intent i = new Intent(addressActivity.this, liveActivity.class);
String strName = content.toString();
i.putExtra("urlAddress", strName);
startActivity(i);
}
}
2nd class where the passed string is set
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_live);
final String newString;
if (savedInstanceState == null) {
Bundle extras = getIntent().getExtras();
if(extras == null) {
newString = null;
} else {
newString = extras.getString("urlAddress");
}
} else {
newString = (String) savedInstanceState.getSerializable("urlAddress");
}
urlLink = "rtsp://" + newString + "&stream=1.sdp?";
videoPlay();
}
void videoPlay(){
mPlayer1 = new MediaPlayer();
mCallback1 = new SurfaceHolder.Callback() {
#Override
public void surfaceCreated(SurfaceHolder surfaceHolder) {
try {
mPlayer1.setDataSource(urlLink);
mPlayer1.setDisplay(surfaceHolder);
mPlayer1.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
#Override
public void onPrepared(MediaPlayer mediaPlayer) {
mPlayer1.start();
Toast.makeText(getBaseContext(),"Connecting...",Toast.LENGTH_LONG).show();
}
});
mPlayer1.prepareAsync();
} catch (IOException e) {
e.printStackTrace();
}
}
#Override
public void surfaceChanged(SurfaceHolder surfaceHolder, int i, int i2, int i3) {
}
#Override
public void surfaceDestroyed(SurfaceHolder surfaceHolder) {
mPlayer1.release();
}
};
final SurfaceView surfaceView1 =
(SurfaceView) findViewById(R.id.surfaceView1);
// Configure the Surface View.
surfaceView1.setKeepScreenOn(true);
// Configure the Surface Holder and register the callback.
SurfaceHolder holder1 = surfaceView1.getHolder();
holder1.addCallback(mCallback1);
holder1.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
}

Answer 1

I manage to find the answer and it was ridiculously plain and simple.On the second class around these lines of codes on the top
final String newString;
if (savedInstanceState == null) {
Bundle extras = getIntent().getExtras();
if(extras == null) {
newString = null;
} else {
newString = extras.getString("urlAddress");
}
} else {
newString = (String) savedInstanceState.getSerializable("urlAddress");
}
urlLink = "rtsp://" + newString + "&stream=1.sdp?";
videoPlay();
}
All I did was change
urlLink = "rtsp://" + newString + "&stream=1.sdp?";
into
urlLink = "rtsp://" + newString.toString().trim() + "&stream=1.sdp?";
Just adding toString() did not work,so I tried adding trim() and it works.If someone can explain it to me why this work it would be much appreciated