0android创建按钮Buttonbutton=newButton(this);1android创建输入框EditTexteditText=newEditText(this);2android创建文本TextViewtextView=newTextView(this);3android设置文本显示内容TextViewtextView=newTextView(this);textView.setText("helloworld!");4android设置文本背景色TextViewtextView=newTextView(this);textView.setBackgroundColor(Color.YELLOW);5android设置文本颜色TextViewtextView=newTextView(this);textView.setTextColor(Color.YELLOW);6android设置文本文字大小TextViewtextView=newTextView(this);textView.setTextSize(18);7android设置输入框宽度EditTexteditText=newEditText(this);editText.setWidth(200);8android设置输入框为密码框EditTexteditText=newEditText(this);editText.setTransformationMethod(PasswordTransformationMethod.getInstance());9android设置输入框为密码框（xml配置）android:password="true"10android提示对话框的使用AlertDialog.Builderbuilder=newAlertDialog.Builder(this);builder.setTitle("你好");builder.setPositiveButton("OK",this);builder.show()需实现android.content.DialogInterface.OnClickListener接口11androidListView的使用ListViewlistView=newListView(this);ArrayList<HashMap<String,Object>>list=newArrayList<HashMap<String,Object>>();SimpleAdapteradapter=newSimpleAdapter(this,list,R.layout.list,newString[]{"标题"},newint[]{R.id.TextView01});listView.setAdapter(adapter);listView.setOnItemClickListener(this);然后实现OnItemClickListener接口publicvoidonItemClick(AdapterView<?>parent,Viewview,intposition,longid){}12android更新ListViewListViewlistView=newListView(this);ArrayList<HashMap<String,Object>>list=newArrayList<HashMap<String,Object>>();SimpleAdapteradapter=newSimpleAdapter(this,list,R.layout.list,newString[]{"标题"},newint[]{R.id.TextView01});listView.setAdapter(adapter);adapter.notifyDataSetChanged();//通知更新ListView13android创建LinearLayoutLinearLayoutlayoutParant=newLinearLayout(this);14android时间设置对话框的使用DatePickerDialogdlg=newDatePickerDialog(this,this,year,month,day);dlg.show();/*yearmonthday均为int型，第二个参数为this时，该类需要implementsOnDateSetListener并重写publicvoidonDateSet(DatePickerview,intyear,intmonthOfYear,intday