Android中自定义Dialog

	/**
	 * 弹出设置防盗密码对话框
	 */
	private void showSetupPwdDialog() {
		//弹出设置的对话框
		Builder builder = new Builder(this);
		//给当前对话框填充一个布局文件
		//TODO 此处的this代表的是？HomeActivity
		View view = View.inflate(this, R.layout.dialog_setup_password, null);
		//获取输入的密码和确认密码
		final EditText et_password = (EditText) view.findViewById(R.id.et_password);
		final EditText et_password_confirm = (EditText) view.findViewById(R.id.et_password_confirm);
		//给对话框的确认和取消两个按钮设置监听,注意button是定义在dialog_setup_password.xml里的,而此处的this代表HomeActivity
		Button bt_ok = (Button) view.findViewById(R.id.ok);//在弹出的对话框里找button
		Button bt_cancel = (Button) view.findViewById(R.id.cancel);
		bt_ok.setOnClickListener(new OnClickListener() {
			//当点击确认时触发此方法,即设置防盗密码
			@Override
			public void onClick(View v) {
				//对输入的密码进行判断,并用sp保存		
				//得到密码
				String password = et_password.getText().toString().trim();
				String password_confirm = et_password_confirm.getText().toString().trim();
				//判空,判是否相等
				if (TextUtils.isEmpty(password)) {
					Toast.makeText(HomeActivity.this, "密码不能为空!", 1).show();
				}else if (TextUtils.isEmpty(password_confirm)) {
					Toast.makeText(HomeActivity.this, "确认密码不能为空!", 1).show();
				}else if (!password_confirm.equals(password_confirm)) {
					Toast.makeText(HomeActivity.this, "两次密码不一致!", 1).show();
				}else{
					//保存密码
					Editor editor = sp.edit();
					editor.putString("password", MD5Utils.encode(password));
					editor.commit();
					Toast.makeText(HomeActivity.this, "设置成功!", 1).show();
					//进入防盗设置的主页面
					Intent intent = new Intent(HomeActivity.this,LostFindActivity.class);
					startActivity(intent);
					dialog.dismiss();
				}
			}
		});
		bt_cancel.setOnClickListener(new OnClickListener() {
			//当点击取消时触发此方法,销毁提示框
			@Override
			public void onClick(View v) {
				dialog.dismiss();				
			}
		});
//		builder.setView(view);
//		dialog = builder.show();
		//为解决在低版本运行由dialog引发的边框为黑色的问题
		dialog = builder.create();
		//将四周的spacing都设置为0
//		dialog.setView(view, viewSpacingLeft, viewSpacingTop, viewSpacingRight, viewSpacingBottom)
		dialog.setView(view, 0, 0, 0, 0);
		dialog.show();
	}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="300dip"
    android:background="#ffffff"
//低版本2.3适配
    android:gravity="center_horizontal"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <TextView
        android:textColor="#000000"
        android:textSize="18sp"
        android:layout_width="300dip"
        android:layout_height="50dip"
        android:background="#66ff6600"
        android:gravity="center"
        android:text="设置密码" />

    <EditText
        android:id="@+id/et_password"
        android:layout_width="280dip"
        android:layout_height="wrap_content"
        android:hint="请输入您要设置的密码"
        android:inputType="textPassword" >
    </EditText>

    <EditText
        android:id="@+id/et_password_confirm"
        android:layout_width="280dip"
        android:layout_height="wrap_content"
        android:hint="请再次输入您要设置的密码"
        android:inputType="textPassword" />

    <LinearLayout
        android:gravity="center_horizontal"
        
        android:layout_width="300dip"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/ok"
            android:layout_width="140dip"
            android:layout_height="wrap_content"
            android:text="确定" />

        <Button
            android:id="@+id/cancel"
            android:layout_width="140dip"
            android:layout_height="wrap_content"
            android:text="取消" />
    </LinearLayout>

</LinearLayout>