Android 窗口Dialog 代码以及使用
窗口作为我们交互的一个重要组成部分,下面我将会从简单到深入地逐步示范Dialog的使用:
首先是简单确定、取消对话框的窗口:
new AlertDialog.Builder(this) ////this表示context上下文.setIcon(R.drawable.question).setTitle("是否删除文件")
.setPositiveButton("确定",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int whichButton) {
new AlertDialog.Builder(Main.this).setMessage("文件已经被删除.").create()
.show();}}).setNegativeButton("取消",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int whichButton) {
new AlertDialog.Builder(Main.this).setMessage("您已经选择了取消按钮,该文件未被删除.")
.create().show();}}).create();
然后是简单的列表窗口:
new AlertDialog.Builder(this).setTitle("选择省份") //this表示context上下文.setItems(provinces, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {final AlertDialog ad = new AlertDialog.Builder(Main.this)
.setMessage("您已经选择了: " + which + ":"+ provinces[which]).show();android.os.Handler hander = new android.os.Handler();
hander.postDelayed(new Runnable() {
@Overridepublic void run() {ad.dismiss();}}, 5 * 1000);}}).create();
单选窗口的建立:
new AlertDialog.Builder(this).setTitle("选择省份").setSingleChoiceItems(provinces, 1, buttonOnClick) //buttonOnClik用于监听选中以后处理事件.setPositiveButton("确定", buttonOnClick)
.setNegativeButton("取消", buttonOnClick).create();
多选窗口的建立:
new AlertDialog.Builder(this).setIcon(R.drawable.image).setTitle("选择省份")
.setMultiChoiceItems(provinces,new boolean[] { false, true, false, true, false,false },
new DialogInterface.OnMultiChoiceClickListener() {
public void onClick(DialogInterface dialog,int whichButton, boolean isChecked) {}}).setPositiveButton("确定",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,int whichButton) {
int count = lv.getCount();
String s = "您选择了:";
for (int i = 0; i < provinces.length; i++) {if (lv.getCheckedItemPositions().get(i))
s += i+ ":"
+ lv.getAdapter().getItem(i) + " ";
}if (lv.getCheckedItemPositions().size() > 0) {
new AlertDialog.Builder(Main.this).setMessage(s).show();} else {
new AlertDialog.Builder(Main.this).setMessage("您未选择任何省份").show();
}}}).setNegativeButton("取消", null).create();lv = ad.getListView();
Mark down here ,之后比较容易找到自己所用的代码