AlertDialog点击自定控件关闭

自定义布局view_ac.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<RelativeLayout
android:layout_width="match_parent"
android:layout_height="55dip"
android:background="#5DCDF3"
android:orientation="horizontal" >

<ImageView
android:id="@+id/image_back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="15dip"
android:background="@drawable/title_left"
android:padding="10dip" />

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="自定义布局"
android:textColor="#FFFFFF" />
</RelativeLayout>

<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:layout_marginTop="40dip"
android:orientation="vertical" >

<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="用户名" />

<EditText
android:layout_marginTop="20dip"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="密码" />
</LinearLayout>

</LinearLayout>

代码

View view=LinearLayout.inflate(MainActivity.this, R.layout.view_ac, null);

final AlertDialog builder=new AlertDialog.Builder(MainActivity.this).create();

builder.setView(view);

builder.show();

ImageView image = (ImageView) view.findViewById(R.id.image_back);
image.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
builder.dismiss();
}
});