Question

public class oddg extends Activity实现OnClickListener { ProgressDialog对话框; int增量; 最大值; private static final String TAG =“ServicesDemo”;

    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main1);
        Button startbtn = (Button) findViewById(R.id.startbtn);
        startbtn.setOnClickListener(this);

    }

// @Override // public boolean onKeyDown（int keyCode，KeyEvent event）{ // if（keyCode == KeyEvent.KEYCODE_BACK＆amp;＆amp; event.getRepeatCount（）== 0）{ //
// moveTaskToBack（true）; //} //返回super.onKeyDown（keyCode，event）; //}

    @Override
    public void onClick(View arg0) 
    {

        // get the increment value from the text box
        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 
               {

                       // enter the code to be run while displaying the progressbar.
                       //
                       // This example is just going to increment the progress bar:
                       // So keep running until the progress value reaches maximum value
                   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
               }
           }
        });
        // start the background thread
        background.start();
       //oddg o1 = new oddg();

      // o1.onPause();

    }


     // handler for the background updating
    Handler progressHandler = new Handler()
    {
        public void handleMessage(Message msg) 
        {
            if(dialog.getProgress()== dialog.getMax())
            {

// Log.d（TAG，“onClick：停止srvice”）; //
// stopService（new Intent（oddg.this，MyService.class））;

                Log.d(TAG, "onClick: starting service");
                startService(new Intent(oddg.this, MyService.class)); 
            }

            dialog.incrementProgressBy(increment);
        }

    };




}

Answer 1

@Override
public IBinder onBind(Intent intent) {
    return null;
}

@Override
public void onCreate() {

Intent i = new Intent(getBaseContext(), CustomDialogExample.class);
dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
getApplication().startActivity(i);



}

尝试这个并告诉我，如果没问题;）

Answer 2

dialog = new ProgressDialog(this);

代码中的

this指的是onClickListener而不是Activity，请尝试

dialog = new ProgressDialog(arg0)

或 dialog = new ProgressDialog(oddg.this)

或者你可以实例化 dialog = new ProgressDialog(this); 在OnCreate()

从服务调用的活动

2 个答案: