android人人网登陆例子研究

eoe上有源码,点击一个自定义图片按钮控件,弹出自定义的一个dialog..内含输入框可登陆.
自定的图片按钮:ConnectButton.java
对话框:RenrenDialog.java
 
传值
Bundle bundle=new Bundle();bundle.putString("store", "数据来自Activity1");Intent mIntent=new Intent();
mIntent.putExtras(bundle);
获取
Bundle extras=getIntent().getExtras();
if(extras!=null){data=extras.getString("store");}
 
Dialog
//根据不同事件弹出不同的窗口
//showDialog(dialog)时调用这里
@Override protected Dialog onCreateDialog(int id) { switch (id) { case DIALOG1: return buildDialog1(ActivityMain.this); case DIALOG2: return buildDialog2(ActivityMain.this); case DIALOG3: return buildDialog3(ActivityMain.this); case DIALOG4: return buildDialog4(ActivityMain.this); } return null; }
protected void onPrepareDialog(int id, Dialog dialog){ if(id==DIALOG1){ setTitle("测试"); }
//这里很奇怪,好像是窗口打开时运行的东西,判断某个为dialog1时改变标题(嗯,)
} Button button1 = (Button) findViewById(R.id.button1); button1.setOnClickListener(new OnClickListener() { public void onClick(View v) { showDialog(DIALOG1); } }); Button buttons2 = (Button) findViewById(R.id.buttons2); buttons2.setOnClickListener(new OnClickListener() { public void onClick(View v) { showDialog(DIALOG2); } }); //。。其他button private Dialog buildDialog1(Context context) { AlertDialog.Builder builder = new AlertDialog.Builder(context); builder.setIcon(R.drawable.alert_dialog_icon); builder.setTitle(R.string.alert_dialog_two_buttons_title); builder.setPositiveButton(R.string.alert_dialog_ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { setTitle("点击了对话框上的确定按钮"); } }); builder.setNegativeButton(R.string.alert_dialog_cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { setTitle("点击了对话框上的取消按钮"); } }); return builder.create(); }//弹出窗口信息

private Dialog buildDialog3(Context context) {
  LayoutInflater inflater = LayoutInflater.from(this);
  final View textEntryView = inflater.inflate(//在dialog内放入实例化的view,定义所需的内容,如登录信息等
    R.layout.alert_dialog_text_entry, null);
  AlertDialog.Builder builder = new AlertDialog.Builder(context);
  builder.setIcon(R.drawable.alert_dialog_icon);
  builder.setTitle(R.string.alert_dialog_text_entry);
  builder.setView(textEntryView);
  builder.setPositiveButton(R.string.alert_dialog_ok,
    new DialogInterface.OnClickListener() {
     public void onClick(DialogInterface dialog, int whichButton) {
      setTitle("点击了对话框上的确定按钮");
     }
    });
  builder.setNegativeButton(R.string.alert_dialog_cancel,
    new DialogInterface.OnClickListener() {
     public void onClick(DialogInterface dialog, int whichButton) {
      setTitle("点击了对话框上的取消按钮");
     }
    });
  return builder.create();
 }

 private Dialog buildDialog4(Context context) {
  ProgressDialog dialog = new ProgressDialog(context);//Loading 之前都是alertDialog,这里是ProgressDialog
  dialog.setTitle("正在下载歌曲");
  dialog.setMessage("请稍候……");
  return  dialog;
 }

 
待续
posted @ 2011-04-18 22:26  子午  阅读(...)  评论(...编辑  收藏