Android 程式开发：（一）详解活动 —— 1.6 显示复杂对话框

除了“对话框”进度条，也可以创建一个显示“操作进度”的对话框，例如显示正在下载的状态。
1、创建一个工程：Dialog。
 
2、main.xml中的代码。
 
<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" > 
 
    <Button 
        android:id="@+id/btn_dialog3" 
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content" 
        android:onClick="onClick3" 
        android:text="Click to display a detailed progress dialog" /> 
 
</LinearLayout> 
3、DialogActivity.java中的代码。package net.horsttnann.Dialog; 
 
import android.app.Activity; 
import android.app.Dialog; 
import android.app.ProgressDialog; 
import android.content.DialogInte易做图ce; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Toast; 
 
public class DialogActivity extends Activity { 
    ProgressDialog progressDialog; 
 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.main); 
    } 
 
    public void onClick3(View v) { 
        showDialog(1); 
        progressDialog.setProgress(0); 
 
        new Thread(new Runnable() { 
            public void run() { 
                for (int i = 1; i <= 15; i++) { 
                    try { 
                        // ---simulate doing something lengthy--- 
                        Thread.sleep(1000); 
                        // ---update the dialog--- 
                        progressDialog.incrementProgressBy((int) (100 / 15)); 
                    } catch (InterruptedException e) { 
                        e.printStackTrace(); 
                    } 
                } 
                progressDialog.dismiss(); 
            } 
        }).start(); 
    } 
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    @Override 
    protected Dialog onCreateDialog(int id) { 
        switch (id) { 
        case 1: 
            progressDialog = new ProgressDialog(this); 
            progressDialog.setIcon(R.drawable.ic_launcher); 
            progressDialog.setTitle("Downloading files..."); 
            progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); 
            progressDialog.setButton(DialogInte易做图ce.BUTTON_POSITIVE, "OK", 
                    new DialogInte易做图ce.OnClickListener() { 
                        public void onClick(DialogInte易做图ce dialog, 
                                int whichButton) { 
                            Toast.makeText(getBaseContext(), "OK clicked!", 
                                    Toast.LENGTH_SHORT).show(); 
                        } 
                    }); 
            progressDialog.setButton(DialogInte易做图ce.BUTTON_NEGATIVE, "Cancel", 
                    new DialogInte易做图ce.OnClickListener() { 
                        public void onClick(DialogInte易做图ce dialog, 
                                int whichButton) { 
                            Toast.makeText(getBaseContext(), "Cancel clicked!", 
                                    Toast.LENGTH_SHO

补充：移动开发 , Android ,