利用活动显示对话框,需要重写Activity中的onCreateDialog()方法,以此来显示一个对话框窗口。
效果如下:
实现代码如下:
package com.example.dialog; import java.util.zip.CheckedInputStream; import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.app.Dialog; import android.app.ProgressDialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.widget.Toast; public class DialogActivity extends Activity { CharSequence[] items = {"美女","世界美女","绝食美女"}; boolean[] itemsChecked = new boolean[items.length]; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.main); } public void onClick(View v){ showDialog(0); } @Override @Deprecated protected Dialog onCreateDialog(int id) { // TODO Auto-generated method stub switch (id) { case 0: Builder builder = new AlertDialog.Builder(this); builder.setIcon(R.drawable.ic_launcher); builder.setTitle("This is a dialog with some text"); builder.setPositiveButton("OK", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(getBaseContext(), "OK clicked!", Toast.LENGTH_SHORT).show(); } } ); builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // TODO Auto-generated method stub Toast.makeText(getBaseContext(), "Cancel clicked!", Toast.LENGTH_SHORT).show(); } } ); builder.setMultiChoiceItems(items, itemsChecked, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface Dialog, int which, boolean isChecked) { // TODO Auto-generated method stub Toast.makeText(getBaseContext(), items[which] + (isChecked ? " Checked!":" Unchecked!" ), Toast.LENGTH_SHORT).show(); } } ); return builder.create(); } return null; } public void onClick2(View v){ final ProgressDialog progressDialog =ProgressDialog.show(this, "progressbar", "please waiting..."); new Thread(new Runnable() { @Override public void run() { // TODO Auto-generated method stub try { Thread.sleep(3000); progressDialog.dismiss(); } catch (InterruptedException e) { // TODO: handle exception e.printStackTrace(); } } }).start(); } }