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文件大小: 21mb
下载次数: 0
上传时间: 2015-07-01
详细说明: 查看图片,全选,图片缓存 package com.edu.image; import java.util.List; import android.app.Activity; import android.content.ContentResolver; import android.os.Bundle; import android.provider.MediaStore.Images.Media; import android.view.Menu; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.CheckBox; import android.widget.GridView; import android.widget.RelativeLayout; import android.widget.TextView; public class MainActivity extends Activity { private List infos; private GridView gridView; private CheckBox select_ALL; private TextView textView,text; private Button delete,cancel; boolean selectAll; private MyGridView adapter; private ContentResolver resolver; private int num; private boolean deletedState; private RelativeLayout opetate; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); gridView = (GridView) findViewById(R.id.gridView); opetate=(RelativeLayout) findViewById(R.id.opetate); select_ALL=(CheckBox) findViewById(R.id.checkAll); textView=(TextView) findViewById(R.id.checkNum); delete=(Button) findViewById(R.id.delete); cancel=(Button) findViewById(R.id.cancel); infos = ImageTool.scanImages(this); adapter=new MyGridView(infos, this); gridView.setAdapter(adapter); setTitle("我的相册"); select_ALL.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { if(!selectAll){ selectAll=true; for (int i = 0; i < infos.size(); i++) { infos.get(i).setSelect(true); num=infos.size(); } }else { selectAll=false; for (int i = 0; i < infos.size(); i++) { infos.get(i).setSelect(false); num=0; } } adapter.notifyDataSetChanged(); textView.setText("选中"+num+"项"); } }); //android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here delete.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { String []ids=new String[1]; resolver=getContentResolver(); if(selectAll){ for(int i=0;i
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