Adroid数据库的储存与访问（乐学成语）

乐学成语的设计结果

主要代码如下：

MainActivity.java

package com.bzu.happyidiom.controller;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.app.Activity;import android.app.TabActivity;import android.content.Intent;import android.view.Menu;import android.view.Window;import android.widget.TabHost;import android.widget.TextView;public class MainActivity extends TabActivity {TabHost mTabHost;private TextView tv_show;protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);getWindow().requestFeature(Window.FEATURE_CUSTOM_TITLE);setContentView(R.layout.actvity_main);Intent study_intent = new Intent();study_intent.setClass(MainActivity.this, StudyActivity.class);mTabHost = getTabHost();TabHost.TabSpec Tab1 = mTabHost.newTabSpec("tab1");Tab1.setIndicator("学习",getResources().getDrawable(R.drawable.study_study)).setContent(study_intent);mTabHost.addTab(Tab1);TabHost.TabSpec Tab2 = mTabHost.newTabSpec("tab2");Tab2.setIndicator("搜搜",getResources().getDrawable(R.drawable.study_search)).setContent(R.id.activity_search);mTabHost.addTab(Tab2);TabHost.TabSpec Tab3 = mTabHost.newTabSpec("tab3");Tab3.setIndicator("游戏",getResources().getDrawable(R.drawable.study_game)).setContent(R.id.activity_game);mTabHost.addTab(Tab3);TabHost.TabSpec Tab4 = mTabHost.newTabSpec("tab4");Tab4.setIndicator("收藏",getResources().getDrawable(R.drawable.study_save)).setContent(R.id.activity_save);mTabHost.addTab(Tab4);TabHost.TabSpec Tab5 = mTabHost.newTabSpec("tab5");Tab5.setIndicator("帮助",getResources().getDrawable(R.drawable.study_help)).setContent(R.id.activity_help);mTabHost.addTab(Tab5);getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.title_marquee);tv_show = (TextView) this.findViewById(R.id.tv_showSave);tv_show.append("一心一意" + " ");tv_show.append("三心二意" + " ");tv_show.append("有情有义" + " ");tv_show.append("一叶知秋" + " ");tv_show.append("风和日丽" + " ");tv_show.append("四平八稳" + " ");tv_show.append("一叶障目" + " ");}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

WelcomeActivity.java

package com.bzu.happyidiom.controller;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.Menu;import android.view.animation.AlphaAnimation;import android.view.animation.Animation;import android.view.animation.Animation.AnimationListener;import android.widget.ImageView;/** * 闪屏界面 */public class WelcomeActivity extends Activity {private ImageView welcomeImage;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_welcome);        welcomeImage=(ImageView) this.findViewById(R.id.welcome);        //定义1个具有淡入效果的对象        AlphaAnimation alphaAnimation=new AlphaAnimation(0.1f,1.0f);        alphaAnimation.setDuration(3000);        welcomeImage.startAnimation(alphaAnimation);        alphaAnimation.setAnimationListener(new AnimationListener() {@Overridepublic void onAnimationStart(Animation animation) {}@Overridepublic void onAnimationRepeat(Animation animation) {}@Overridepublic void onAnimationEnd(Animation animation) {Intent intent=new Intent();intent.setClass(WelcomeActivity.this, MainActivity.class);startActivity(intent);finish();}});    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.welcome, menu);        return true;    }    }

activitymain.xml

<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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"      tools:context=".MainActivity" >    <TabHost        android:id="@android:id/tabhost"        android:layout_width="fill_parent"        android:layout_height="fill_parent">        <LinearLayout       android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="vertical" >            <TabWidget                android:id="@android:id/tabs"         android:layout_width="match_parent"                android:layout_height="wrap_content" >            </TabWidget>            <FrameLayout                android:id="@android:id/tabcontent"             android:layout_width="fill_parent"                android:layout_height="match_parent">                <include layout="@layout/activity_study"/>                <include layout="@layout/activity_search"/>                <include layout="@layout/activity_game"/>                <include layout="@layout/activity_save"/>                <include layout="@layout/activity_help"/>            </FrameLayout>        </LinearLayout>    </TabHost>    </RelativeLayout>