对话框

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

<TextView android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="计算请点按钮"></TextView>
<Button android:id="@+id/Button01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="计算"></Button>
</LinearLayout>

main2.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content">

<LinearLayout android:id="@+id/LinearLayout01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical">
<TextView android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="第一个值"></TextView>
<EditText android:id="@+id/EditText01" android:layout_width="wrap_content" android:layout_height="wrap_content"></EditText>
<TextView android:id="@+id/TextView02" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="第二个值"></TextView>
<EditText android:id="@+id/EditText02" android:layout_width="wrap_content" android:layout_height="wrap_content"></EditText>
</LinearLayout>
</LinearLayout>

OnCreate

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        t1 = (TextView)findViewById(R.id.TextView01);
        Button btn = (Button)findViewById(R.id.Button01);
        btn.setOnClickListener(new Button.OnClickListener(){
            public void onClick(View v){
                Dialog dlg = new AlertDialog.Builder(HelloAndroid.this)
                    .setTitle("提示")
                    .setMessage("点击确定，进行计算")
                    .setPositiveButton("确定", new DialogInterface.OnClickListener(){
                        public void onClick(DialogInterface dlg, int btn){
                            LayoutInflater fac = LayoutInflater.from(HelloAndroid.this);
                            final View dv = fac.inflate(R.layout.main2, null);
                            _dlg = new AlertDialog.Builder(HelloAndroid.this)
                                .setTitle("显示")
                                .setView(dv)
                                .setPositiveButton("确定", new DialogInterface.OnClickListener(){
                                    public void onClick(DialogInterface dialog, int btn){
                                        _dlg1 = ProgressDialog.show(HelloAndroid.this, "请稍等...", "正在计算...");
                                        new Thread(){
                                            public void run(){
                                                try{
                                                    sleep(5000);
                                                    int i1 = Integer.parseInt(((EditText)_dlg.findViewById(R.id.EditText01)).getText().toString());
                                                    int i2 = Integer.parseInt(((EditText)_dlg.findViewById(R.id.EditText02)).getText().toString());
                                                    t1.setText(Integer.toString(i1+i2));
                                                }
                                                catch(Exception e){
                                                    e.printStackTrace();
                                                }
                                                finally{
                                                    _dlg1.dismiss();
                                                }
                                            }
                                        }.start();
                                    }
                                })
                                .show();
                        }
                    })
                    .setNeutralButton("关闭", new DialogInterface.OnClickListener(){
                        public void onClick(DialogInterface dialog, int btn){
                            HelloAndroid.this.finish();
                        }
                    })
                    .show();
            }
        });
   }

真真是乱死我了！