AlertDialog的点击事件报错！！！求大神

[poptangchen12]

final ListView lv=(ListView)findViewById(R.id.listView1);
		final ArrayList<HashMap<String, Object>> listItem = new ArrayList<HashMap<String,Object>>();
		HashMap<String, Object> map = new HashMap<String, Object>();
		final SimpleAdapter mSimpleAdapter=new SimpleAdapter(this,listItem,R.layout.item,new String[]{"1","2"},new int[]{R.id.itemtext1,R.id.itemtext2});
		lv.setAdapter(mSimpleAdapter);
                Button btn=(Button)findViewById(R.id.add);
		btn.setOnClickListener(new View.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				// TODO 自动生成的方法存根
				Builder builder=new AlertDialog.Builder(MainActivity.this);
				builder.setTitle("添加任务：");
				LayoutInflater inflater=getLayoutInflater();
				View view=inflater.inflate(R.layout.addactivity, null);
				builder.setView(view);
				builder.setPositiveButton("添加", new DialogInterface.OnClickListener() {
					
					@Override
					public void onClick(DialogInterface dialog, int which) {
						// TODO 自动生成的方法存根
						EditText editname=(EditText)findViewById(R.id.editName);
						String name=editname.getText().toString();
						EditText edittime=(EditText)findViewById(R.id.editTime);
						String time=edittime.getText().toString();
						HashMap<String, Object> map = new HashMap<String, Object>();
						map.put("1", name);
						map.put("2", time);
						
						listItem.add(map);
						
						mSimpleAdapter.notifyDataSetChanged();
					}
				});
				builder.setNegativeButton("取消", null);
				builder.create().show();
				}
		});

这是代码，简单说一下，在主界面放一个button和一个listview，点击button弹出AlertDialog，AlertDialog是通过addactivity.xml来布局的，在AlertDialog里面有两个EditText(editName,editTime)，我希望通过setPosttiveButton获取这两个EditText的值，放到主界面的ListView里面，可是这样报错，大神帮忙看一下哪里错了，谢谢

[浅笑_JIE]

把Log贴出来吧

[poptangchen12]

03-14 13:22:37.962: I/Choreographer(2835): Skipped 39 frames! The application may be doing too much work on its main thread. 03-14 13:22:56.442: D/AndroidRuntime(2835): Shutting down VM 03-14 13:22:56.442: W/dalvikvm(2835): threadid=1: thread exiting with uncaught exception (group=0xb2e9e648) 03-14 13:22:56.442: E/AndroidRuntime(2835): FATAL EXCEPTION: main 03-14 13:22:56.442: E/AndroidRuntime(2835): java.lang.NullPointerException 03-14 13:22:56.442: E/AndroidRuntime(2835): at com.example.MainActivity$1$1.onClick(MainActivity.java:49) 03-14 13:22:56.442: E/AndroidRuntime(2835): at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166) 03-14 13:22:56.442: E/AndroidRuntime(2835): at android.os.Handler.dispatchMessage(Handler.java:99) 03-14 13:22:56.442: E/AndroidRuntime(2835): at android.os.Looper.loop(Looper.java:137) 03-14 13:22:56.442: E/AndroidRuntime(2835): at android.app.ActivityThread.main(ActivityThread.java:5103) 03-14 13:22:56.442: E/AndroidRuntime(2835): at java.lang.reflect.Method.invokeNative(Native Method) 03-14 13:22:56.442: E/AndroidRuntime(2835): at java.lang.reflect.Method.invoke(Method.java:525) 03-14 13:22:56.442: E/AndroidRuntime(2835): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 03-14 13:22:56.442: E/AndroidRuntime(2835): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 03-14 13:22:56.442: E/AndroidRuntime(2835): at dalvik.system.NativeStart.main(Native Method) 这是log

[windfury_plus]

贴

引用 2 楼 poptangchen12 的回复:

03-14 13:22:37.962: I/Choreographer(2835): Skipped 39 frames! The application may be doing too much work on its main thread. 03-14 13:22:56.442: D/AndroidRuntime(2835): Shutting down VM 03-14 13:22:56.442: W/dalvikvm(2835): threadid=1: thread exiting with uncaught exception (group=0xb2e9e648) 03-14 13:22:56.442: E/AndroidRuntime(2835): FATAL EXCEPTION: main 03-14 13:22:56.442: E/AndroidRuntime(2835): java.lang.NullPointerException 03-14 13:22:56.442: E/AndroidRuntime(2835): at com.example.MainActivity$1$1.onClick(MainActivity.java:49) 03-14 13:22:56.442: E/AndroidRuntime(2835): at com.android.internal.app.AlertController$ButtonHandler.handleMessage(AlertController.java:166) 03-14 13:22:56.442: E/AndroidRuntime(2835): at android.os.Handler.dispatchMessage(Handler.java:99) 03-14 13:22:56.442: E/AndroidRuntime(2835): at android.os.Looper.loop(Looper.java:137) 03-14 13:22:56.442: E/AndroidRuntime(2835): at android.app.ActivityThread.main(ActivityThread.java:5103) 03-14 13:22:56.442: E/AndroidRuntime(2835): at java.lang.reflect.Method.invokeNative(Native Method) 03-14 13:22:56.442: E/AndroidRuntime(2835): at java.lang.reflect.Method.invoke(Method.java:525) 03-14 13:22:56.442: E/AndroidRuntime(2835): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737) 03-14 13:22:56.442: E/AndroidRuntime(2835): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 03-14 13:22:56.442: E/AndroidRuntime(2835): at dalvik.system.NativeStart.main(Native Method) 这是log

你有个地方少了view 把第二个输入对话框的创建，改为

EditText editname=(EditText)view.findViewById(R.id.editName);
String name=editname.getText().toString();
EditText edittime=(EditText)view.findViewById(R.id.editTime);
String time=edittime.getText().toString();

不能直接findviewbyid 需要view.findviewbyid view就是前面你得到的view，要设为final类型