自定义对话框加状态选择器

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/fire" android:state_pressed="true"/>
 <!-- pressed -->
    <item android:drawable="@drawable/fire" android:state_focused="true"/>
 <!-- focused -->
    <item android:drawable="@drawable/normal"/>
 <!-- default -->

</selector>

<?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" >

  <TextView 
      android:gravity="center"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:text="小型火焰"/>
  
  <!-- 一定要加上这句android:clickable="true" -->
  <ImageView 
       android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:clickable="true"  
      android:background="@drawable/img"/>

</LinearLayout>

package com.example.mytest002;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;


public class MainActivity extends Activity {
    Button button1;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        button1=(Button) findViewById(R.id.button1);
        button1.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                
                showdialog();
            }
        });
    }
    public void showdialog() {
        
        AlertDialog.Builder builder=new Builder(this);
        AlertDialog dialog=builder.create();
        View view=View.inflate(this, R.layout.my_dialog, null);
        // 去掉上下左右边距, 兼容2.x版本
        dialog.setView(view, 0,0,0,0);
        dialog.show();
    }

  
}