Android动态改变GridView的值【安卓进化二十二】

来源：互联网发布：mac中断进程编辑：程序博客网时间：2024/06/05 08:50

最近感觉GridView的用法比较灵活，比如写一些动态改变的东西，更新显示效果比较明显，所以我写了一个demo，选中球后，点击确定显示选中的球在主页面，点击重置，则选中的球都被清空。这个效果还是比较不错的！希望给大家启迪。项目图片我没有上传，有问题的请留言，想要源码的请留言，转载请标明出处：

http://blog.csdn.net/wdaming1986/article/details/6786444

我的csdn资源下载链接分享给大家，大家可以下载：

http://download.csdn.net/detail/wdaming1986/3611738

程序的主页面：点击button按钮弹出dialog页面：

点击确定后的效果，点击重置如

选球，球的颜色会发生变化第二张图片的效果，球没有选中的效果

代码奉上：

com.cn.daming包里面的类：

一、MainActivity.java类中的代码：

package com.cn.daming;import java.util.ArrayList;import android.app.Activity;import android.app.AlertDialog;import android.graphics.Color;import android.graphics.drawable.GradientDrawable;import android.graphics.drawable.GradientDrawable.Orientation;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.Button;import android.widget.GridView;import android.widget.Toast;public class MainActivity extends Activity {private GridView redBallGrid;private GridView blueBallGrid;private Button okButton;private Button resetButton;private Button dialog_button;private GridView showRedGridView;private GridView showBlueGridView;private AlertDialog show_ball_dialog;private View show_ball_dialog_view;public static ArrayList<Integer> redBallSelectArr= new ArrayList<Integer>();public static ArrayList<Integer> blueBallSelectArr= new ArrayList<Integer>();private int redNumLeft = 35,blueNumLeft = 16;private Integer[] changeimageid = {R.drawable.redball_dark01,R.drawable.redball_dark02,R.drawable.redball_dark03,R.drawable.redball_dark04,R.drawable.redball_dark05,R.drawable.redball_dark06,R.drawable.redball_dark07,R.drawable.redball_dark08,R.drawable.redball_dark09,R.drawable.redball_dark10,R.drawable.redball_dark11,R.drawable.redball_dark12,R.drawable.redball_dark13,R.drawable.redball_dark14,R.drawable.redball_dark15,R.drawable.redball_dark16,R.drawable.redball_dark17,R.drawable.redball_dark18,R.drawable.redball_dark19,R.drawable.redball_dark20,R.drawable.redball_dark21,R.drawable.redball_dark22,R.drawable.redball_dark23,R.drawable.redball_dark24,R.drawable.redball_dark25,R.drawable.redball_dark26,R.drawable.redball_dark27,R.drawable.redball_dark28,R.drawable.redball_dark29,R.drawable.redball_dark30,R.drawable.redball_dark31,R.drawable.redball_dark32,R.drawable.redball_dark33,R.drawable.redball_dark34,R.drawable.redball_dark35,};private Integer[]mImageIds= { R.drawable.redball_01,R.drawable.redball_02,R.drawable.redball_03,R.drawable.redball_04,R.drawable.redball_05,R.drawable.redball_06,R.drawable.redball_07,R.drawable.redball_08,R.drawable.redball_09,R.drawable.redball_10,R.drawable.redball_11,R.drawable.redball_12,R.drawable.redball_13,R.drawable.redball_14,R.drawable.redball_15,R.drawable.redball_16,R.drawable.redball_17,R.drawable.redball_18,R.drawable.redball_19,R.drawable.redball_20,R.drawable.redball_21,R.drawable.redball_22,R.drawable.redball_23,R.drawable.redball_24,R.drawable.redball_25,R.drawable.redball_26,R.drawable.redball_27,R.drawable.redball_28,R.drawable.redball_29,R.drawable.redball_30,R.drawable.redball_31,R.drawable.redball_32,R.drawable.redball_33,R.drawable.redball_34,R.drawable.redball_35,};    private Integer[] blueBallIds = {R.drawable.blueball_01,R.drawable.blueball_02,R.drawable.blueball_03,R.drawable.blueball_04,R.drawable.blueball_05,R.drawable.blueball_06,R.drawable.blueball_07,R.drawable.blueball_08,R.drawable.blueball_09,R.drawable.blueball_10,R.drawable.blueball_11,R.drawable.blueball_12,R.drawable.blueball_13,R.drawable.blueball_14,R.drawable.blueball_15,R.drawable.blueball_16,};      private Integer[] blueBallChangeIds ={R.drawable.blueball_dark01,R.drawable.blueball_dark02,R.drawable.blueball_dark03,R.drawable.blueball_dark04,R.drawable.blueball_dark05,R.drawable.blueball_dark06,R.drawable.blueball_dark07,R.drawable.blueball_dark08,R.drawable.blueball_dark09,R.drawable.blueball_dark10,R.drawable.blueball_dark11,R.drawable.blueball_dark12,R.drawable.blueball_dark13,R.drawable.blueball_dark14,R.drawable.blueball_dark15,R.drawable.blueball_dark16,};@Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        drawBackground();        initSelectedBallArrayList();        initBall_GridView();        initDialog_Button();}public void drawBackground()             {                 GradientDrawable grad = new GradientDrawable(                             Orientation.TL_BR,                            new int[] {                                         Color.rgb(0, 0, 127),                                           Color.rgb(0, 0, 255),                                           Color.rgb(127, 0, 255),                                           Color.rgb(127, 127, 255),                                           Color.rgb(127, 255, 255),                                           Color.rgb(255, 255, 255)                                     }                  );                           this.getWindow().setBackgroundDrawable(grad);             }    private void initSelectedBallArrayList(){for(int i=0;i<35;i++){redBallSelectArr.add(i,0);}for(int i=0;i<16;i++){blueBallSelectArr.add(i,0);}}private void initBall_GridView(){showRedGridView = (GridView)findViewById(R.id.show_red_gridview);showBlueGridView = (GridView)findViewById(R.id.show_blue_gridview);}private void initDialog_Button(){dialog_button = (Button)findViewById(R.id.dialog_button);dialog_button.setOnClickListener(new OnClickListener(){public void onClick(View arg0) {show_ball_dialog = new AlertDialog.Builder(MainActivity.this).create();show_ball_dialog_view = View.inflate(MainActivity.this, R.layout.ball_grid_dialog, null);redBallGrid = (GridView)(show_ball_dialog_view).findViewById(R.id.red_ball_grid);blueBallGrid = (GridView)(show_ball_dialog_view).findViewById(R.id.blue_ball_grid);okButton = (Button)(show_ball_dialog_view).findViewById(R.id.Ok_Button);resetButton = (Button)(show_ball_dialog_view).findViewById(R.id.Reset_Button);redBallGrid.setAdapter(new ImageAdapter(MainActivity.this,MainActivity.this,redBallSelectArr));blueBallGrid.setAdapter(new ImageAdapter(MainActivity.this,MainActivity.this,blueBallSelectArr));show_ball_dialog.setView(show_ball_dialog_view);show_ball_dialog.show();redBallGrid.setOnItemClickListener(new OnItemClickListener(){public void onItemClick(AdapterView<?> arg0, View arg1,int arg2, long arg3) {if(redNumLeft > 1){if(redBallSelectArr.get(arg2) == 0){arg1.setBackgroundResource(changeimageid[arg2]);redBallSelectArr.set(arg2,arg2+1);redNumLeft --;}else{arg1.setBackgroundResource(mImageIds[arg2]);redBallSelectArr.set(arg2, 0);redNumLeft += 1;}}else{if(redBallSelectArr.get(arg2) != 0){arg1.setBackgroundResource(mImageIds[arg2]);redBallSelectArr.set(arg2, 0);redNumLeft +=1;}else{Toast.makeText(MainActivity.this, "you choose enough",Toast.LENGTH_SHORT).show();}}}});blueBallGrid.setOnItemClickListener(new OnItemClickListener(){public void onItemClick(AdapterView<?> arg0, View arg1,int arg2, long arg3) {if(blueNumLeft > 1){if(blueBallSelectArr.get(arg2) == 0){arg1.setBackgroundResource(blueBallChangeIds[arg2]);blueBallSelectArr.set(arg2,arg2+1);blueNumLeft --;}else{arg1.setBackgroundResource(blueBallIds[arg2]);blueBallSelectArr.set(arg2, 0);blueNumLeft += 1;}}else{if(blueBallSelectArr.get(arg2) != 0){arg1.setBackgroundResource(blueBallIds[arg2]);blueBallSelectArr.set(arg2, 0);blueNumLeft +=1;}else{Toast.makeText(MainActivity.this, "you choose enough",Toast.LENGTH_SHORT).show();}}}});okButton.setOnClickListener(new OnClickListener(){public void onClick(View arg0) {showRedGridView.setAdapter(new ShowBallArrayAdapter(MainActivity.this, MainActivity.this, redBallSelectArr));showBlueGridView.setAdapter(new ShowBallArrayAdapter(MainActivity.this, MainActivity.this, blueBallSelectArr));show_ball_dialog.dismiss();}});resetButton.setOnClickListener(new OnClickListener(){public void onClick(View arg0) {redBallSelectArr.clear();blueBallSelectArr.clear();initSelectedBallArrayList();redNumLeft = 36; blueNumLeft = 16;redBallGrid.setAdapter(new ImageAdapter(MainActivity.this,MainActivity.this,redBallSelectArr));blueBallGrid.setAdapter(new ImageAdapter(MainActivity.this,MainActivity.this,blueBallSelectArr));}});}});}}

二、ImageAdapter.java类中的代码：

package com.cn.daming;import java.util.ArrayList;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.ImageView;public class ImageAdapter extends BaseAdapter{MainActivity activity;private ContextmContext;ImageView imageView;private Integer[]mImageIds= { R.drawable.redball_01,R.drawable.redball_02,R.drawable.redball_03,R.drawable.redball_04,R.drawable.redball_05,R.drawable.redball_06,R.drawable.redball_07,R.drawable.redball_08,R.drawable.redball_09,R.drawable.redball_10,R.drawable.redball_11,R.drawable.redball_12,R.drawable.redball_13,R.drawable.redball_14,R.drawable.redball_15,R.drawable.redball_16,R.drawable.redball_17,R.drawable.redball_18,R.drawable.redball_19,R.drawable.redball_20,R.drawable.redball_21,R.drawable.redball_22,R.drawable.redball_23,R.drawable.redball_24,R.drawable.redball_25,R.drawable.redball_26,R.drawable.redball_27,R.drawable.redball_28,R.drawable.redball_29,R.drawable.redball_30,R.drawable.redball_31,R.drawable.redball_32,R.drawable.redball_33,R.drawable.redball_34,R.drawable.redball_35,};private Integer[] changeimageid = {R.drawable.redball_dark01,R.drawable.redball_dark02,R.drawable.redball_dark03,R.drawable.redball_dark04,R.drawable.redball_dark05,R.drawable.redball_dark06,R.drawable.redball_dark07,R.drawable.redball_dark08,R.drawable.redball_dark09,R.drawable.redball_dark10,R.drawable.redball_dark11,R.drawable.redball_dark12,R.drawable.redball_dark13,R.drawable.redball_dark14,R.drawable.redball_dark15,R.drawable.redball_dark16,R.drawable.redball_dark17,R.drawable.redball_dark18,R.drawable.redball_dark19,R.drawable.redball_dark20,R.drawable.redball_dark21,R.drawable.redball_dark22,R.drawable.redball_dark23,R.drawable.redball_dark24,R.drawable.redball_dark25,R.drawable.redball_dark26,R.drawable.redball_dark27,R.drawable.redball_dark28,R.drawable.redball_dark29,R.drawable.redball_dark30,R.drawable.redball_dark31,R.drawable.redball_dark32,R.drawable.redball_dark33,R.drawable.redball_dark34,R.drawable.redball_dark35,};    private Integer[] blueBallIds = {R.drawable.blueball_01,R.drawable.blueball_02,R.drawable.blueball_03,R.drawable.blueball_04,R.drawable.blueball_05,R.drawable.blueball_06,R.drawable.blueball_07,R.drawable.blueball_08,R.drawable.blueball_09,R.drawable.blueball_10,R.drawable.blueball_11,R.drawable.blueball_12,R.drawable.blueball_13,R.drawable.blueball_14,R.drawable.blueball_15,R.drawable.blueball_16,};private Integer[] blueBallChangeIds ={R.drawable.blueball_dark01,R.drawable.blueball_dark02,R.drawable.blueball_dark03,R.drawable.blueball_dark04,R.drawable.blueball_dark05,R.drawable.blueball_dark06,R.drawable.blueball_dark07,R.drawable.blueball_dark08,R.drawable.blueball_dark09,R.drawable.blueball_dark10,R.drawable.blueball_dark11,R.drawable.blueball_dark12,R.drawable.blueball_dark13,R.drawable.blueball_dark14,R.drawable.blueball_dark15,R.drawable.blueball_dark16,};private ArrayList<Integer> filter = new ArrayList<Integer>();public ImageAdapter(Context c,MainActivity a ,ArrayList<Integer> ballAL ){activity = a;mContext = c;filter = ballAL;}public int getCount(){if (filter.size() == 35){return 35;}else{return 16;}}public Object getItem(int position){return position;}public long getItemId(int position){return position;}public View getView(final int position, View convertView, ViewGroup parent){if (convertView == null){imageView = new ImageView(mContext);imageView.setLayoutParams(new GridView.LayoutParams(24, 24));imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);}else{imageView = (ImageView) convertView;}if (filter.get(position) == 0 && filter.size()== 35){imageView.setBackgroundResource(mImageIds[position]);}else if (filter.get(position) != 0 && filter.size()== 35){imageView.setBackgroundResource(changeimageid[position]);}else if (filter.get(position) == 0 && filter.size() == 16){imageView.setBackgroundResource(blueBallIds[position]);}else if (filter.get(position) != 0 && filter.size() == 16){imageView.setBackgroundResource(blueBallChangeIds[position]);}return imageView;}}

三、ShowBallArrayAdapter.java类中的代码：

package com.cn.daming;import java.util.ArrayList;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.GridView;import android.widget.ImageView;public class ShowBallArrayAdapter extends BaseAdapter {MainActivity activity;private ArrayList<Integer> filterresult;private Context mContext;ImageView imageView;private int[] imageI;private Integer[] mImageIds = { R.drawable.redball_01,R.drawable.redball_02, R.drawable.redball_03,R.drawable.redball_04, R.drawable.redball_05,R.drawable.redball_06, R.drawable.redball_07,R.drawable.redball_08, R.drawable.redball_09,R.drawable.redball_10, R.drawable.redball_11,R.drawable.redball_12, R.drawable.redball_13,R.drawable.redball_14, R.drawable.redball_15,R.drawable.redball_16, R.drawable.redball_17,R.drawable.redball_18, R.drawable.redball_19,R.drawable.redball_20, R.drawable.redball_21,R.drawable.redball_22, R.drawable.redball_23,R.drawable.redball_24, R.drawable.redball_25,R.drawable.redball_26, R.drawable.redball_27,R.drawable.redball_28, R.drawable.redball_29,R.drawable.redball_30, R.drawable.redball_31,R.drawable.redball_32, R.drawable.redball_33, R.drawable.redball_34,R.drawable.redball_35,};private Integer[] blueImageIds = { R.drawable.blueball_01,R.drawable.blueball_02, R.drawable.blueball_03,R.drawable.blueball_04, R.drawable.blueball_05,R.drawable.blueball_06, R.drawable.blueball_07,R.drawable.blueball_08, R.drawable.blueball_09,R.drawable.blueball_10, R.drawable.blueball_11,R.drawable.blueball_12, R.drawable.blueball_13,R.drawable.blueball_14, R.drawable.blueball_15,R.drawable.blueball_16, };StringBuffer sb = new StringBuffer();String[] temStr;Integer j = 0;String tempS;public ShowBallArrayAdapter(Context c, MainActivity at, ArrayList<Integer> al) {mContext = c;activity = at;filterresult = al;for (int i = 0; i < filterresult.size(); i++) {if (filterresult.get(i) != 0) {sb.append(filterresult.get(i) + ",");}};String s = sb.toString();if (s.length() != 0) {tempS = s.substring(0, s.length() - 1);temStr = tempS.split(",");imageI = new int[temStr.length];for (int i = 0; i < temStr.length; i++) {j = Integer.parseInt(temStr[i]);imageI[i] = j - 1;}for(int k=0;k<temStr.length;k++){if (filterresult.size() == 35){imageI[k] = mImageIds[imageI[k]];}else if (filterresult.size() == 16){imageI[k] = blueImageIds[imageI[k]];   }}} else {tempS = s.substring(0, s.length());}}public int getCount() {if (temStr == null) {return 0;} else {return temStr.length;}}public Object getItem(int position) {return position;}public long getItemId(int position) {return position;}public View getView(int position, View convertView, ViewGroup parent) {if (convertView == null) {imageView = new ImageView(mContext);imageView.setClickable(true);imageView.setLayoutParams(new GridView.LayoutParams(24, 24));imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);} else {imageView = (ImageView) convertView;}imageView.setBackgroundResource(imageI[position]);return imageView;}}

Layout布局中的文件：

一、main.xml布局文件中的代码：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    >   <View         android:layout_marginLeft="1dip"    android:layout_width="2dip"     android:layout_height="fill_parent"android:background="#FF909090" />   <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"       >    <View     android:layout_width="fill_parent"     android:layout_height="2dip"android:background="#FF909090" /><TextView      android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:gravity="center_horizontal|center_vertical"    android:text="@string/hello"    android:textSize="10pt"    android:textColor="#FF000000" /> <View     android:layout_width="fill_parent"     android:layout_height="2dip"android:background="#FF909090" /> <Button    android:id="@+id/dialog_button"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:text="点击弹出Dialog对话框"    android:textSize="10pt" /> <View     android:layout_width="fill_parent"     android:layout_height="2dip"android:background="#FF909090" /> <TextView    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:gravity="center_horizontal|center_vertical"    android:text="红球选中球数"    android:textSize="10pt"    android:textColor="#FF000000" /> <GridView        android:id="@+id/show_red_gridview"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:horizontalSpacing="6dip"        android:verticalSpacing="16dip"        android:numColumns="8"        android:gravity="center"    />    <View     android:layout_width="fill_parent"     android:layout_height="2dip"android:background="#FF909090" />    <TextView    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:gravity="center_horizontal|center_vertical"    android:text="蓝球选中球数"    android:textSize="10pt"    android:textColor="#FF000000" /> <GridView        android:id="@+id/show_blue_gridview"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:horizontalSpacing="6dip"        android:verticalSpacing="16dip"        android:numColumns="8"        android:gravity="center"    />     <View         android:layout_marginBottom="2dip"    android:layout_width="fill_parent"     android:layout_height="2dip"android:background="#FF909090" />  </LinearLayout>  <View         android:layout_marginRight="2dip"    android:layout_width="2dip"     android:layout_height="fill_parent"android:background="#FF909090" /></LinearLayout>

二、ball_grid_dialog.xml布局文件中的代码：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    >     <TextView   android:id="@+id/gridviewtitle"   android:layout_width="fill_parent"   android:layout_height="wrap_content"   android:gravity="center_horizontal"   android:text="@string/ball_textview"   android:textSize="20dip"   android:background="#00000000"   /><View     android:layout_width="fill_parent"     android:layout_height="2dip"android:background="#FF909090" /><GridView     android:id="@+id/red_ball_grid"     android:layout_width="match_parent"android:layout_height="wrap_content"android:horizontalSpacing="5dip"android:verticalSpacing="10dip"android:numColumns="7"android:gravity="center" /><View     android:layout_width="fill_parent"     android:layout_height="2dip"android:background="#FF909090" /><GridView     android:id="@+id/blue_ball_grid"android:layout_width="match_parent" android:layout_height="wrap_content"android:horizontalSpacing="5dip"android:verticalSpacing="10dip"android:numColumns="7"android:gravity="center" /><View     android:layout_width="fill_parent"    android:layout_height="2dip"android:background="#FF909090" /><RelativeLayout     android:layout_width="fill_parent"android:layout_height="wrap_content"><Button     android:id="@+id/Ok_Button"     android:text="@string/ok_button"android:layout_width="wrap_content" android:layout_height="wrap_content"android:layout_alignParentRight="true"/><Button     android:id="@+id/Reset_Button"     android:text="@string/reset_button"android:layout_width="wrap_content"            android:layout_height="wrap_content"android:layout_toLeftOf="@id/Ok_Button"></Button></RelativeLayout></LinearLayout>

values目录下的string.xml中的代码：

<?xml version="1.0" encoding="utf-8"?><resources>    <string name="hello">大明动态改变GridView的值!</string>    <string name="app_name">大明动态GridViewDemo</string>    <string name="ball_textview">大明选中球界面</string>    <string name="ok_button">确定</string>    <string name="reset_button">重置</string></resources>

AndroidManifest.xml中的代码：

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.cn.daming"      android:versionCode="1"      android:versionName="1.0">    <uses-sdk android:minSdkVersion="8" />    <application android:icon="@drawable/icon" android:label="@string/app_name">        <activity android:name=".MainActivity"                  android:label="@string/app_name">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>