public class ChildLock extends Activity implements OnClickListener
{
ProgressDialog dialog;
int increment;
int maximum ;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button startbtn = (Button) findViewById(R.id.startbtn);
startbtn.setOnClickListener(this);
}
@Override
开发者_如何学Go public void onClick(View arg0)
{
EditText et = (EditText) findViewById(R.id.increment);
// convert the text value to a integer
increment = Integer.parseInt(et.getText().toString());
dialog = new ProgressDialog(this);
dialog.setCancelable(true);
dialog.setMessage("Loading...");
// set the progress to be horizontal
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
// reset the bar to the default value of 0
dialog.setProgress(0);
// get the maximum value
EditText max = (EditText) findViewById(R.id.maximum);
// convert the text value to a integer
maximum = Integer.parseInt(max.getText().toString());
// set the maximum value
dialog.setMax(maximum);
// display the progressbar
dialog.show();
// create a thread for updating the progress bar
Thread background = new Thread (new Runnable() {
public void run()
{
try
{
while(dialog.getProgress()<= dialog.getMax())
{
// wait 500ms between each update
Thread.sleep(500);
// active the update handler
progressHandler.sendMessage(progressHandler.obtainMessage());
}
}
catch (java.lang.InterruptedException e)
{
// if something fails do something smart
}
}
});
background.start();
}
// handler for the background updating
Handler progressHandler = new Handler()
{
public void handleMessage(Message msg)
{
if(dialog.getProgress()== dialog.getMax())
{
Intent i = new Intent(ChildLock.this, notifi.class);
startActivity(i);
}
dialog.incrementProgressBy(increment);
}
};
}
if you are running your progress bar in a thread which generally happen as below then you have to pass message to UI thread from this thread
public class MyActivity extends Activity {
private static final int PROGRESS = 0x1;
private ProgressBar mProgress;
private int mProgressStatus = 0;
private Handler mHandler = new Handler();
protected void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.progressbar_activity);
mProgress = (ProgressBar) findViewById(R.id.progress_bar);
// Start lengthy operation in a background thread
new Thread(new Runnable() {
public void run() {
while (mProgressStatus < 100) {
mProgressStatus = doWork();
mProgress.setProgress(mProgressStatus);
}
//pass messege to UI thread
Message msg=new Message();
msg.obj="your text";
mHandler.sendMessage(msg);
});
}
}
}).start();
}
}
and your mHandler will be like this for notification
mHandler = new Handler() {
@Override public void handleMessage(Message msg) {
String i=(String)msg.obj;
Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
}
};
paste this code after your while loop of progressbar thread
while(dialog.getProgress()<= dialog.getMax()){
..........
}
Message msg=new Message();
msg.obj="your text";
mHandler.sendMessage(msg);
and create mHandler at onCreate() method
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