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package com.smart;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ListView;
//繼承OnClickListener
public class Main extends Activity implements OnClickListener {
//固定的靜态變量，
private final int DELETE_FILE = 1;
private final int SIMPLE_LIST = 2;
private final int SINGLE_CHOICE_LIST = 3;
private final int MULTI_LIST = 4;
private ListView lv = null;
//定義一個字元串數組
private String[] provinces = new String[] { "中國", "泰國", "美國", "法國",
"新加坡", "英國" };
//按鈕
private ButtonOnClick buttonOnClick = new ButtonOnClick(1);
@Override//事件點選
public void onClick(View v) {
//開關選擇
switch(v.getId()){
case R.id.btnDeleteFile:
showDialog(DELETE_FILE);
break;
case R.id.btnSimpleList:
showDialog(SIMPLE_LIST);
case R.id.btnChoiceList:
showDialog(SINGLE_CHOICE_LIST);
case R.id.btnMultiChoiceList:
showDialog(MULTI_LIST);
case R.id.btnRemoveDialog:
removeDialog(DELETE_FILE);
removeDialog(SIMPLE_LIST);
removeDialog(SINGLE_CHOICE_LIST);
removeDialog(MULTI_LIST);
}
}
@Override
protected Dialog onCreateDialog(int id) {
Log.d("dialog",String.valueOf(id));
//用來判斷選擇的目标。如果沒有選擇，并提示出來，選擇中了，也顯示結果。詳看代碼
switch(id){
case DELETE_FILE:
return new AlertDialog.Builder(this).setIcon(R.drawable.question).setTitle("是否删除檔案").setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
new AlertDialog.Builder(Main.this).setMessage("檔案已經被删除").create().show();
}
}).setNegativeButton("取消", new DialogInterface.OnClickListener() {
new AlertDialog.Builder(Main.this).setMessage("您已經選擇了取消，檔案未删除").create().show();
}).create();
case SIMPLE_LIST:
return new AlertDialog.Builder(this).setTitle("選擇國家").setItems(provinces, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
final AlertDialog ad=new AlertDialog.Builder(Main.this).setMessage("您已經選擇了"+which+":"+provinces[which]).show();
android.os.Handler hander=new android.os.Handler();
hander.postDelayed(new Runnable() {
//線程管理
public void run() {
ad.dismiss();
}, 5*1000);
}
}).create();
case SINGLE_CHOICE_LIST:
return new AlertDialog.Builder(this).setTitle("選擇國家").setSingleChoiceItems(provinces, 1, buttonOnClick).setPositiveButton("确定", buttonOnClick).setNegativeButton("取消", buttonOnClick).create();
case MULTI_LIST:
AlertDialog ad=new AlertDialog.Builder(this).setIcon(R.drawable.image).setTitle("選擇國家").setMultiChoiceItems(provinces, new boolean[]{false,true,false,true,false,false} , new DialogInterface.OnMultiChoiceClickListener() {
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
}).setPositiveButton("确定", new DialogInterface.OnClickListener() {
int count=lv.getCount();
String s="您選擇了：";
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("您未選擇任何國家").show();
}).setNegativeButton("取消", null).create();
lv=ad.getListView();
return ad;
return null;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//得到選中的哪一個按鈕
Button btnDeletefile=(Button)findViewById(R.id.btnDeleteFile);
Button btnSimpleList=(Button)findViewById(R.id.btnChoiceList);
Button btnSimngleChoiceList=(Button)findViewById(R.id.btnSimpleList);
Button btnMultiChoiceList=(Button)findViewById(R.id.btnMultiChoiceList);
Button btnRemoveDialog=(Button)findViewById(R.id.btnRemoveDialog);
//綁定監聽器
btnDeletefile.setOnClickListener(this);
btnSimpleList.setOnClickListener(this);
btnSimngleChoiceList.setOnClickListener(this);
btnMultiChoiceList.setOnClickListener(this);
btnRemoveDialog.setOnClickListener(this);
//定義一個類，用來判斷選擇中的。
private class ButtonOnClick implements DialogInterface.OnClickListener {
private int index;
public ButtonOnClick(int index) {
this.index = index;
@Override
public void onClick(DialogInterface dialog, int whichButton) {
if(whichButton>=0){
index=whichButton;
}else{
if(whichButton==DialogInterface.BUTTON_POSITIVE){
new AlertDialog.Builder(Main.this).setMessage("您已經選擇了:"+index+":"+provinces[index]).show();
}else if(whichButton==DialogInterface.BUTTON_NEGATIVE){
new AlertDialog.Builder(Main.this).setMessage("你未選擇,請選擇").show();
protected void onPrepareDialog(int id,Dialog dialog){
super.onPrepareDialog(id, dialog);
}
另外很多朋友對Android系統構架圖還不是很了解，我附上一張中文的圖給大家觀看
<a target="_blank" href="http://blog.51cto.com/attachment/201102/140742220.jpg"></a>
本文轉自 llb988 51CTO部落格，原文連結：http://blog.51cto.com/llb988/489522，如需轉載請自行聯系原作者
![Android項目的依賴關系解析[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)