progress dialog例子

Aga

package org.cxz.research;public interface IncreasePercentage {public void increase(int increment);public boolean isFull();}

package org.cxz.research;import java.util.Random;public class FakeDownloader implements Runnable {IncreasePercentage mIncreaser = null;public FakeDownloader(IncreasePercentage increaser) {super();mIncreaser = increaser;}@Overridepublic void run() {Random r = new Random();while(mIncreaser.isFull()){mIncreaser.increase(Math.abs(r.nextInt(10)));try {Thread.sleep(1000 * 1);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}}

package org.cxz.research;import android.app.Activity;import android.app.Dialog;import android.app.ProgressDialog;import android.os.Bundle;public class PercentageDialog extends Activity implements IncreasePercentage{private static interface DIALOG_IDS{public static final int PERCENTAGE_DIALOG = 0;}private ProgressDialog mPercentageDialog = null;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        showDialog(DIALOG_IDS.PERCENTAGE_DIALOG);    }@Overrideprotected void onResume() {new Thread(new FakeDownloader(this)).start();super.onResume();}@Overrideprotected Dialog onCreateDialog(int id) {switch(id){case DIALOG_IDS.PERCENTAGE_DIALOG:mPercentageDialog = new ProgressDialog(this);mPercentageDialog.setProgress(0);mPercentageDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);mPercentageDialog.setMessage("some msgs");mPercentageDialog.setMax(100);return mPercentageDialog;default:break;}return super.onCreateDialog(id);}@Overridepublic void increase(final int increment) {runOnUiThread(new Runnable(){@Overridepublic void run() {mPercentageDialog.setProgress(mPercentageDialog.getProgress() + increment);if(mPercentageDialog.getProgress() >= 100){mPercentageDialog.dismiss();}}});}@Overridepublic boolean isFull() {return mPercentageDialog.isShowing();}}
版本二：
package org.cxz.research;import java.util.Observable;import android.app.Activity;import android.app.Dialog;import android.app.ProgressDialog;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;public class PercentageDialog extends Activity implements IncreasePercentage{private static interface DIALOG{public static final int PERCENTAGE_DIALOG = 0;}private static interface OPTION{public static final int START_DOWNLOADING = 10;}private ProgressDialog mPercentageDialog = null;private Observable mObservable = new Observable();private FakeDownloader mDownloader = new FakeDownloader(this);    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        mObservable.addObserver(mDownloader);    }protected void startDownload() {new Thread(mDownloader, "Fake Downloader").start();super.onResume();}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {menu.add(0, OPTION.START_DOWNLOADING, 0, "start");return super.onCreateOptionsMenu(menu);}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {switch(item.getItemId()){case OPTION.START_DOWNLOADING:showDialog(DIALOG.PERCENTAGE_DIALOG);mPercentageDialog.setProgress(0);startDownload();}return true;}@Overrideprotected Dialog onCreateDialog(int id) {switch(id){case DIALOG.PERCENTAGE_DIALOG:mPercentageDialog = new ProgressDialog(this);mPercentageDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);mPercentageDialog.setMessage("some msgs");mPercentageDialog.setMax(100);return mPercentageDialog;default:break;}return super.onCreateDialog(id);}@Overridepublic void increase(final int increment) {runOnUiThread(new Runnable(){@Overridepublic void run() {mPercentageDialog.setProgress(mPercentageDialog.getProgress() + increment);if(mPercentageDialog.getProgress() >= 100){mPercentageDialog.dismiss();mObservable.notifyObservers();}}});}}

package org.cxz.research;public interface IncreasePercentage {public void increase(int increment);}

package org.cxz.research;import java.util.Observable;import java.util.Observer;import java.util.Random;public class FakeDownloader implements Runnable, Observer{IncreasePercentage mIncreaser = null;private boolean isFull = false;public FakeDownloader(IncreasePercentage increaser) {super();mIncreaser = increaser;}@Overridepublic void run() {Random r = new Random();while(!isFull){mIncreaser.increase(Math.abs(r.nextInt(10)));try {Thread.sleep(1000 * 1);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}@Overridepublic void update(Observable observable, Object data) {isFull = true;}}