自定义Dialog并去掉默认的头部

最新推荐文章于 2025-06-30 12:52:36 发布

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最新推荐文章于 2025-06-30 12:52:36 发布

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分类专栏：安卓知识

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本文介绍如何在Android应用中创建带有自定义布局的Dialog，并展示了具体的实现代码，包括定义布局文件、创建Dialog类及在Activity中调用的方法。

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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" >

</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：

(4)在Activity中使用：

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