Android 对话框 - 倒计时选择对话框、列表对话框字体放大

倒计时选择对话框1、Dialog Layoutdialog_countdown_selection?xml version1.0 encodingutf-8?LinearLayoutxmlns:androidhttp://schemas.android.com/apk/res/androidandroid:layout_width500dpandroid:layout_height400dpandroid:backgrounddrawable/item_dialog_backgroundandroid:gravitycenterandroid:orientationverticalandroid:padding20dpTextViewandroid:idid/tv_titleandroid:layout_widthmatch_parentandroid:layout_heightwrap_contentandroid:gravitycenterandroid:texttitleandroid:textSize25dp/TextViewandroid:idid/tv_countdownandroid:layout_widthmatch_parentandroid:layout_heightwrap_contentandroid:layout_marginTop10dpandroid:gravitycenterandroid:text剩余时间: 30sandroid:textColor#FF0000android:textSize20dp/ListViewandroid:idid/lv_itemsandroid:layout_widthmatch_parentandroid:layout_height0dpandroid:layout_marginTop10dpandroid:layout_weight1/Buttonandroid:idid/btn_cancelandroid:layout_widthmatch_parentandroid:layout_heightwrap_contentandroid:layout_marginTop10dpandroid:text取消android:textColor#ff000000//LinearLayoutitem_dialog_background?xml version1.0 encodingutf-8?shapexmlns:androidhttp://schemas.android.com/apk/res/androidandroid:shaperectanglesolidandroid:color#ffffffff/cornersandroid:bottomLeftRadius20dpandroid:bottomRightRadius20dpandroid:topLeftRadius20dpandroid:topRightRadius20dp//shapeitem_dialog_background_transparent?xml version1.0 encodingutf-8?shapexmlns:androidhttp://schemas.android.com/apk/res/androidandroid:shaperectanglesolidandroid:color#00ffffff//shape2、Dialog CodepublicclassCountdownSelectionDialog{publicinterfaceOnItemSelectedListener{voidonItemSelected(intposition);}privatefinalAlertDialogdialog;privatefinalCountDownTimercountDownTimer;privatebooleanisFinishedfalse;publicCountdownSelectionDialog(Contextcontext,Stringtitle,String[]items,intcountdownSeconds,OnItemSelectedListeneritemListener,RunnableonCountdownFinish,RunnableonCancel){ViewviewView.inflate(context,R.layout.dialog_countdown_selection,null);TextViewtvTitleview.findViewById(R.id.tv_title);TextViewtvCountdownview.findViewById(R.id.tv_countdown);ListViewlvItemsview.findViewById(R.id.lv_items);ButtonbtnCancelview.findViewById(R.id.btn_cancel);AlertDialog.BuilderbuildernewAlertDialog.Builder(context);builder.setView(view);builder.setCancelable(false);dialogbuilder.create();dialog.getWindow().setBackgroundDrawableResource(R.drawable.item_dialog_background_transparent);tvTitle.setText(title);tvCountdown.setText(剩余时间: countdownSecondss);countDownTimernewCountDownTimer(countdownSeconds*1000L,1000){OverridepublicvoidonTick(longmillisUntilFinished){longimillisUntilFinished/1000;tvCountdown.setText(剩余时间: is);}OverridepublicvoidonFinish(){if(isFinished)return;isFinishedtrue;dialog.dismiss();if(onCountdownFinish!null){onCountdownFinish.run();}}};ArrayAdapterStringadapternewArrayAdapter(context,android.R.layout.simple_list_item_1,items);lvItems.setAdapter(adapter);lvItems.setOnItemClickListener((parent,v,position,id)-{if(isFinished)return;isFinishedtrue;countDownTimer.cancel();dialog.dismiss();if(itemListener!null){itemListener.onItemSelected(position);}});btnCancel.setOnClickListener(v-{if(isFinished)return;isFinishedtrue;countDownTimer.cancel();dialog.dismiss();if(onCancel!null){onCancel.run();}});}publicvoidshow(){dialog.show();countDownTimer.start();}publicvoiddismiss(){if(isFinished)return;isFinishedtrue;countDownTimer.cancel();dialog.dismiss();}}3、TestString[]itemsnewString[]{语文,数学,英语};CountdownSelectionDialogcountdownSelectionDialognewCountdownSelectionDialog(this,课程选择,items,20,position-{Toast.makeText(this,选择了items[position],Toast.LENGTH_SHORT).show();},()-{Toast.makeText(this,倒计时结束,Toast.LENGTH_SHORT).show();},()-{Toast.makeText(this,取消选择,Toast.LENGTH_SHORT).show();});countdownSelectionDialog.show();列表对话框字体放大1、Dialog Layoutdialog_selection_item.xml自定义布局调大字体?xml version1.0 encodingutf-8?TextViewxmlns:androidhttp://schemas.android.com/apk/res/androidandroid:layout_widthmatch_parentandroid:layout_heightwrap_contentandroid:padding16dpandroid:textColor#000000android:textSize30sp/2、TestString[]items{第一节数学,第二节地理,第三节历史,第四节美术};AlertDialog.BuilderbuildernewAlertDialog.Builder(this);builder.setTitle(课程安排);ArrayAdapterStringarrayAdapternewArrayAdapter(this,R.layout.dialog_selection_item,items);builder.setAdapter(arrayAdapter,(dialog,which)-{Toast.makeText(this,items[which],Toast.LENGTH_SHORT).show();});AlertDialogalertDialogbuilder.create();alertDialog.show();