猜猜我在想什么（以及动画xml的设置）

java;

package EX04_24.txt;import EX04_24.txt.R.string;import android.R.integer;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.view.animation.Animation;import android.view.animation.AnimationUtils;import android.widget.Button;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.RadioGroup.OnCheckedChangeListener;import android.widget.TextView;public class EX04_24 extends Activity {private TextView mTextView;private RadioGroup mRadioGroup;private RadioButton mRadioButton1;private RadioButton mRadioButton2;private RadioButton mRadioButton3;private Button mButton1;private Button mButton2;private int[] choices = null;private String[] items = null;private int mchoice;private int mCount = 0;private boolean mNotify = false;private String mStr = "";    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                initApp();    }private void initApp() {// TODO Auto-generated method stubmTextView = (TextView)findViewById(R.id.TextView01);mRadioGroup = (RadioGroup)findViewById(R.id.RadioGroup01);mRadioButton1 = (RadioButton)findViewById(R.id.RadioButton01);mRadioButton2 = (RadioButton)findViewById(R.id.RadioButton02);mRadioButton3 = (RadioButton)findViewById(R.id.RadioButton03);mButton1 = (Button)findViewById(R.id.Button01);mButton2 = (Button)findViewById(R.id.Button02);choices = new int[]                  {mRadioButton1.getId(),mRadioButton2.getId(),mRadioButton3.getId()                  };items = new String[]                  {getResources().getString(R.string.app_choice1),getResources().getString(R.string.app_choice2),getResources().getString(R.string.app_choice3)                  };init_mchoice();mRadioGroup.setOnCheckedChangeListener(myChecked);mButton1.setOnClickListener(myAnswer);mButton2.setOnClickListener(myClear);}private void init_mchoice() {// TODO Auto-generated method stubmchoice = choices[(int) (Math.random()*3)];for (int i = 0; i < choices.length; i++) {if (mchoice == choices[i]) {mStr = items[i];break;}}}OnClickListener myClear =new Button.OnClickListener(){@Overridepublic void onClick(View v) {// TODO Auto-generated method stubmTextView.setText(getResources().getString(R.string.str_hellow));mNotify = false;mRadioGroup.clearCheck();mCount = 0;init_mchoice();}};OnClickListener myAnswer =new Button.OnClickListener(){@Overridepublic void onClick(View v) {// TODO Auto-generated method stubif (mNotify) {mTextView.setText(getResources().getString(R.string.str_correct) + mStr);mNotify = false;mRadioGroup.clearCheck();mCount = 0;} else {mCount++;mTextView.setText(getResources().getString(R.string.str_error) + Integer.toString(mCount) + ")");Animation am = new AnimationUtils().loadAnimation(EX04_24.this, R.anim.my_anim);v.startAnimation(am);}init_mchoice();}};OnCheckedChangeListener myChecked = new RadioGroup.OnCheckedChangeListener(){@Overridepublic void onCheckedChanged(RadioGroup group, int checkedId) {// TODO Auto-generated method stubif (checkedId == mchoice) {mNotify = true;} else {mNotify = false;}}};}

main.xml

<?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"    ><TextViewandroid:id="@+id/TextView01" android:textSize = "18sp"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="@string/str_hellow"    /><TextView android:text="@string/app_title" android:id="@+id/TextView02" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView><RadioGroup android:id="@+id/RadioGroup01" android:layout_width="wrap_content" android:layout_height="wrap_content"><RadioButton android:text="@string/app_choice1" android:id="@+id/RadioButton01" android:layout_width="wrap_content" android:layout_height="wrap_content"></RadioButton><RadioButton android:text="@string/app_choice2" android:id="@+id/RadioButton02" android:layout_width="wrap_content" android:layout_height="wrap_content"></RadioButton><RadioButton android:text="@string/app_choice3" android:id="@+id/RadioButton03" android:layout_width="wrap_content" android:layout_height="wrap_content"></RadioButton></RadioGroup><LinearLayout android:id="@+id/LinearLayout01"android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content"><Button android:text="回答" android:id="@+id/Button01"android:layout_marginLeft = "20dip" android:layout_width="100dip" android:layout_height="wrap_content"></Button><Button android:text="清除" android:id="@+id/Button02" android:layout_marginLeft = "50dip" android:layout_width="100dip" android:layout_height="wrap_content"></Button></LinearLayout></LinearLayout>

string.xml

<?xml version="1.0" encoding="utf-8" standalone="no"?><resources>    <string name="hello">Hello World, EX04_24!</string>    <string name="app_name">EX04_24</string>        <string name="str_hellow">欢迎进入猜猜我在想什么</string>    <string name="str_correct">你猜对了,我在想：</string>    <string name="str_error">猜错啦,再猜猜看...（</string>    <string name="app_title">请用念力猜猜我现在在想什么？</string>    <string name="app_choice1">忍者狂刀</string>    <string name="app_choice2">最后一战：星河战役</string>    <string name="app_choice3">吉他英雄：世界轮回乐队</string></resources>

my_anim.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"><alpha android:fromAlpha="0.1" android:toAlpha="1.0" android:duration="3000"/><scale android:interpolator= "@android:anim/accelerate_decelerate_interpolator"android:fromXScale = "0.0"android:toXScale = "1.4"android:fromYScale = "0.0"android:toYScale = "1.4"android:pivotX = "50%"android:pivotY = "50%"android:fillAfter = "false"android:duration = "7000"/><translate android:fromXDelta = "30"android:toXDelta = "-80"android:fromYDelta = "30"android:toYDelta = "300"android:duration = "5000"/><rotateandroid:interpolator= "@android:anim/accelerate_decelerate_interpolator"android:fromDegrees = "0"android:toDegrees = "+350"android:pivotX = "50%"android:pivotY = "50%"android:duration = "3000" /></set>