我的手机管家 主界面

Posted 2020-08-03

我的手机管家

主界面布局文件：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
    android:layout_gravity="center_horizontal"
    tools:context=".MainActivity" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_alignParentRight="true"
        android:text="安全应用中心"
        android:textColor="#ffffff"
        android:background="#32921C"
        android:textSize="24sp"
        android:gravity="center_horizontal"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="match_parent"
        android:layout_height="300dp" 
        android:layout_below="@id/textView1"
        android:src="@drawable/d" />

    <GridView
        android:gravity="center"
        android:id="@+id/gridView1"
        android:background="#FFFFFF"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        android:layout_below="@+id/imageView1"
        android:layout_alignParentBottom="true"
        android:numColumns="3" >
    </GridView>

</RelativeLayout>

效果图：底部是一个GridView 显示管理应用的功能项，

共有9个功能：

自定义适配器：

package com.chb.myphonesave.adapter;

import java.util.List;
import java.util.Map;

import com.chb.myphonesave.R;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class MyGrdViewAdapter extends BaseAdapter {
    private List<Map<String, Object>> list;
    private LayoutInflater lInflater;
    public MyGrdViewAdapter(Context context, List<Map<String, Object>> list){
        lInflater = LayoutInflater.from(context);
        this.list = list;
    }
    
    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return list.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return list.get(position);
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHandler vHandler = null;
        if(convertView == null){
            vHandler = new ViewHandler();
            convertView = lInflater.inflate(R.layout.gv_item, null);
            vHandler.iv = (ImageView)convertView.findViewById(R.id.gv_item_iv);
            vHandler.tv = (TextView)convertView.findViewById(R.id.gv_item_tv);
            convertView.setTag(vHandler);
        }else {
            vHandler = (ViewHandler) convertView.getTag();
        }
        int gv_item_iv = (Integer) list.get(position).get("gv_item_iv");//图片资源id
        String gv_item_tv = (String) list.get(position).get("gv_item_tv");//文字
        vHandler.iv.setBackgroundResource(gv_item_iv);
        vHandler.tv.setText(gv_item_tv);
        return convertView;
    }
    //优化缓存
    private class ViewHandler{
        ImageView iv;
        TextView tv;
    }
}

主界面逻辑代码：

package com.chb.myphonesave.activity;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;

import com.chb.myphonesave.R;
import com.chb.myphonesave.adapter.MyGrdViewAdapter;

public class MainActivity extends Activity {
    private GridView gridView;
    private MyGrdViewAdapter adapter;
    private String[] items;        //item字符串
    private int[] gridview_imgs;    //item图片
    private List<Map<String, Object>> item_list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);//无标题
        setContentView(R.layout.activity_main);
        initView(); 
    }
    /**
     * 初始化组件
     */
    private void initView() {
        String[] items = getResources().getStringArray(R.array.gridview_item);//获取名称数组
        gridview_imgs = new int[] {//gridView item 的图片
                R.drawable.process_manager,R.drawable.cache_clean,R.drawable.app,
                R.drawable.blacknumber,R.drawable.antivirus,R.drawable.traffic,
                R.drawable.safe,R.drawable.settings,R.drawable.exit_icon 
        };
        item_list = new ArrayList<Map<String, Object>>();
        for (int i = 0; i < items.length; i++) {
            Map<String, Object> map = new HashMap<String, Object>();
            map.put("gv_item_tv", items[i]);
            map.put("gv_item_iv", gridview_imgs[i]);
            item_list.add(map);
        }
        
        
        gridView = (GridView) findViewById(R.id.gridView1);
        adapter = new MyGrdViewAdapter(this, item_list);
        gridView.setAdapter(adapter);
        gridView.setOnItemClickListener(listener);
    }
    
    /**
     * gridView item事件的监听
     */
    private OnItemClickListener listener = new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {
　　　　　　　//根据点击事件调到相应的功能界面
            Log.i("tag", "item"+position+"被点击了"+item_list.get(position).get("gv_item_tv"));
        }
    };
     

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

在res/strings中定义一个<string-array>用来存储9个功能名称

<string-array  name="gridview_item" >
        <item >
             <string name="progress_control">进程管理</string>
        </item>
       
        <item>
              <string name="clean_rabish">垃圾清理</string>
        </item>
        
        <item>
           <string name="app_control">应用管理</string>
        </item>
        <item>
            <string name="saoraolanjie">骚扰拦截</string>
        </item>
        <item>
             <string name="bingdusaomiao">病毒扫描</string>
        </item>
        <item>
            <string name="wangluozhushou">网络助手</string>
        </item>
        <item>
          <string name="shoujifangdao">手机防盗</string>
        </item>
        <item>
          <string name="shezhizhongxin">设置中心</string>
        </item>
        <item>
           <string name="exit">退出应用</string>
        </item>     
    </string-array>

在逻辑代码中通过

  String[] items = getResources()
　　　　　　　　　　.getStringArray(R.array.gridview_item);//获取名称数组