自定义Dialog并去掉默认的头部

这东西很简单：

(1)我的Dialog布局history.xml：

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

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="32dp"
        android:background="@drawable/title"
        android:gravity="center"
        android:text="打开记录"
        android:textSize="20dp"
        android:textColor="#ffffff" >
    </TextView>

    <GridView
        android:id="@+id/historypath"
        android:layout_width="280dp"
        android:layout_height="300dp"
        android:layout_gravity="center_horizontal"
        android:gravity="center"
        android:horizontalSpacing="20dp"
        android:verticalSpacing="20dp"
        android:numColumns="2"
        android:layout_marginTop="15dp"
        android:layout_marginLeft="15dp"
        android:layout_marginRight="15dp" >
    </GridView>

</LinearLayout>

 

history_item_content.xml：

<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/img"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:descendantFocusability="blocksDescendants"
    android:focusable="false" />

 

 

(2)我的Dialog：

package com.zx.drawingborad;

import android.app.Dialog;
import android.content.Context;

import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.AdapterView.OnItemClickListener;

public class BackGroupDialog extends Dialog implements OnItemClickListener {
// private PaintView paintView;
 int drawble[] = { R.drawable.ditu };

 public BackGroupDialog(Context context, int mydialogstyle) {
  super(context, mydialogstyle);
 // this.paintView = paintView;
  // TODO Auto-generated constructor stub
 }

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  // TODO Auto-generated method stub
  super.onCreate(savedInstanceState);
  setContentView(R.layout.history);
  GridView bgview = (GridView) findViewById(R.id.historypath);
  bgview.setAdapter(new DrawAdapter());
  bgview.setOnItemClickListener(this);

 }

 class DrawAdapter extends BaseAdapter {

  public DrawAdapter() {
   // TODO Auto-generated constructor stub

  }

  @Override
  public int getCount() {
   // TODO Auto-generated method stub

   return drawble.length;
  }

  @Override
  public Object getItem(int arg0) {
   // TODO Auto-generated method stub
   return null;
  }

  @Override
  public long getItemId(int arg0) {
   // TODO Auto-generated method stub
   return 0;
  }

  
  @Override
  public View getView(int arg0, View convertView, ViewGroup arg2) {
   // TODO Auto-generated method stub
   if (convertView == null) {
    convertView = (ImageView) getLayoutInflater().inflate(
      R.layout.history_item_content, null);
   }
   ((ImageView) convertView).setImageResource(drawble[arg0]);
   ((ImageView) convertView).setBackgroundColor(Color.YELLOW);

   return convertView;

  }
 }

 @Override
 public void onItemClick(AdapterView<?> parent, View view, int position,
   long id) {
  // TODO Auto-generated method stub
  this.dismiss();
 }
}

 

(3)在res-values-styles.xml中添加：

 <style name="ShareDialog" parent="android:style/Theme.Dialog">
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowNoTitle">true</item><!-- 去掉头部 -->
    </style>

(4)在Activity中使用：

new BackGroupDialog(this,R.style.ShareDialog).show();