实例16--心理测试

隔了两个月，又重新开始将j2me转成android,7月8月，我先经过期末考，又到一家信息科技公司开发android手机客户端，或许是自己变懒了，所以就没有继续转，现在开学了，空余时间又开始多了，所以又开始了...两个月自己也成长了许多.

下面给出实例16--心理测试的主要代码，对于将j2me转成android，我有了新的看法，首先我要了解j2me的原理，并了解作者的思想，然后将这种思想在android中实现，而不单单是代码的转换.这次的例子我昨天晚上就要开始转，但一直在犹豫怎么转，最后我是将源代码仔细的看了一遍又一遍，然后用android自己写出来的，当然很多东西跟源代码是一样.

效果图:

实例16--心理测试

Demon_16Activity.java

package com.wjh.demon_16;import java.io.IOException;import java.io.InputStream;import java.util.ArrayList;import android.app.Activity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup.LayoutParams;import android.widget.Button;import android.widget.LinearLayout;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.RadioGroup.OnCheckedChangeListener;import android.widget.TextView;public class Demon_16Activity extends Activity implements OnClickListener, OnCheckedChangeListener {    /** Called when the activity is first created. *///type控制对话框的显示内容,//0显示所有题目的标题,1显示被选题目的问句及选项,2显示测试结果private static final int TEST_BUTTON_ID = 1;private static final int EXIT_BUTTON_ID = 2;private static final int RETURN_BUTTON_ID = 3;private int type = 0;//标题的控件private LinearLayout titlesLLayout;private RadioGroup titlesRGroup;private TextView titlesTView;//选项的控件private LinearLayout optionsLayout;private TextView optionsTView;private RadioGroup optionRGroup;//结果的显示控件private TextView resultTView;private ArrayList<TestItem> testItems;//存储所有的题目private int titleItem = -1;//当前选择的题目private int optionItem = -1;//当前选择的选项private Button testButton;                 //测试指令private Button exitButton;               //退出指令private Button returnButton;  //返回按钮    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        getView();        LoadText();            }    private void getView()    {    //获得标题的控件    titlesLLayout = (LinearLayout)findViewById(R.id.title_ll);    titlesRGroup = (RadioGroup)findViewById(R.id.title_rg);    titlesRGroup.setOnCheckedChangeListener(this);    titlesTView = (TextView)findViewById(R.id.title_tv);    titlesTView.setText("心理测试");    //获得选项的控件    optionsLayout = (LinearLayout)findViewById(R.id.options_ll);    optionsTView = (TextView)findViewById(R.id.options_tv);    //获得按钮    testButton = (Button)findViewById(R.id.test_bt);    testButton.setId(TEST_BUTTON_ID);    testButton.setOnClickListener(this);    exitButton =(Button)findViewById(R.id.exit_bt);    exitButton.setId(EXIT_BUTTON_ID);    exitButton.setOnClickListener(this);    returnButton= (Button)findViewById(R.id.return_bt);    returnButton.setId(RETURN_BUTTON_ID);    returnButton.setOnClickListener(this);    resultTView = (TextView)findViewById(R.id.result_tv);        }private void LoadText(){testItems = new ArrayList<TestItem>();//题目容器try{byte b[] = new byte[10240];//分配10K大小的缓存InputStream is = getResources().openRawResource(R.raw.test);int total = is.read(b);//一次性将数据全部读出int start = 0;int index = 0;while( start < total ){//当 start < total 时，表明还有尚未读取的题目testItems.add(new TestItem(this));//为新题目分配存储空间start = testItems.get(index).Load( b, start, total );//读取一个题目的全部信息RadioButton rButton = new RadioButton(this);rButton.setText(testItems.get(index).Title);titlesRGroup.addView(rButton, LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);//保存题目的标题index ++;}is.close();}catch (IOException e){//输出错误信息e.printStackTrace();}}@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubswitch(arg0.getId()){case TEST_BUTTON_ID:switch( type ){case 0://当前对话框上显示所有标题if( titleItem >= 0 ){//如果选择某个题目,则更换显示内容if(optionsLayout!=null){optionsLayout.removeView(optionRGroup);}optionRGroup = testItems.get(titleItem).choicegroup;optionsLayout.addView(optionRGroup);optionsTView.setText(testItems.get(titleItem).questionStr);optionRGroup.setOnCheckedChangeListener(this);titlesLLayout.setVisibility(View.GONE);optionsLayout.setVisibility(View.VISIBLE);type = 1;}break;case 1://当前对话框上显示问句和选项int n = optionItem;if( n >= 0 ){//如果选择某个选项,则更换显示内容resultTView.setText(testItems.get(titleItem).results[n]);resultTView.setVisibility(View.VISIBLE);optionsLayout.setVisibility(View.GONE);type = 2;testButton.setVisibility(View.GONE);returnButton.setVisibility(View.VISIBLE);}break;}break;case RETURN_BUTTON_ID:resultTView.setVisibility(View.GONE);titlesLLayout.setVisibility(View.VISIBLE);returnButton.setVisibility(View.GONE);testButton.setVisibility(View.VISIBLE);type = 0;break;case EXIT_BUTTON_ID:this.finish();}}@Overridepublic void onCheckedChanged(RadioGroup arg0, int arg1) {// TODO Auto-generated method stubfor(int i = 0;i<arg0.getChildCount();i++){RadioButton btn = (RadioButton)arg0.getChildAt(i);if(btn.isChecked()){if(arg0 == titlesRGroup){titleItem = i;}else  if(arg0 == optionRGroup){optionItem = i;}}}}}

源码包:Demon_16.zip

apk文件（后缀改为apk):Demon_16.zip

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