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hzuapps#5 hzuapps#324 第5次实验
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@wanshanghong
wanshanghong committed Apr 3, 2019
1 parent 31e7dd9 commit 3f72b67
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Showing 6 changed files with 327 additions and 7 deletions.
124 changes: 122 additions & 2 deletions ...p/src/main/java/edu/hzuapps/androidlabs/Soft1714080902219/Soft1714080902219Fragment1.java
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Original file line number Diff line number Diff line change
@@ -1,15 +1,135 @@
package edu.hzuapps.androidlabs.Soft1714080902219;

import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;

import static android.database.sqlite.SQLiteDatabase.openOrCreateDatabase;

public class Soft1714080902219Fragment1 extends Fragment {
private SQLiteDatabase db1;
// private SQLiteDatabase db2;
private MyDatabaseUtil myDatabaseUtil;

public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.soft_1714080902219_fragment1,container,false);
View contentView = inflater.inflate(R.layout.soft_1714080902219_fragment1, container, false);
LinearLayout LinearLayout1 = contentView.findViewById(R.id.news1);
LinearLayout LinearLayout2 = contentView.findViewById(R.id.news2);
LinearLayout LinearLayout3 = contentView.findViewById(R.id.news3);
LinearLayout LinearLayout4 = contentView.findViewById(R.id.news4);
LinearLayout1.setOnClickListener(new MyOnclick());
LinearLayout2.setOnClickListener(new MyOnclick());
LinearLayout3.setOnClickListener(new MyOnclick());
LinearLayout4.setOnClickListener(new MyOnclick());

return contentView;
}
public class MyOnclick implements View.OnClickListener {
@Override
public void onClick(View view) {
//参数二是数据库文件名
myDatabaseUtil = new MyDatabaseUtil(getActivity(), "db1.db", null, 1);
db1 = getActivity().openOrCreateDatabase("db1.db", Context.MODE_PRIVATE, null);
/*/data/data/com.example.sqlite/databases必须存在，否则创建出错，最后是databases而不是database，不要忘了加's'*/
// db2 = SQLiteDatabase.openOrCreateDatabase("/data/data/com.example.sqlite/databases/db2.db3",null);---------------------
/*创建表，并判断是否已经存在此表，没创建，则创建并初始化*/
if (!myDatabaseUtil.tabIsExist("news")) {
db1.execSQL("CREATE TABLE news (news_id int)");
} else {
Log.i("+++++++++++", "已经创建了，无需再创建");
}
String id;
int user_id=0;
TextView tv;
System.out.print("db1开启");
switch (view.getId()) {
case R.id.news1:
tv=getActivity().findViewById(R.id.newsTextId1);
user_id=Integer.parseInt(tv.getText().toString());
break;
case R.id.news2:
tv=getActivity().findViewById(R.id.newsTextId2);
user_id=Integer.parseInt(tv.getText().toString());
break;
case R.id.news3:
tv=getActivity().findViewById(R.id.newsTextId3);
user_id=Integer.parseInt(tv.getText().toString());
break;
case R.id.news4:
tv=getActivity().findViewById(R.id.newsTextId4);
user_id=Integer.parseInt(tv.getText().toString());
break;
default:
break;

}
ContentValues values = new ContentValues();
values.put("news_id", user_id);
System.out.print("user_id:"+user_id);
db1.insert("news", "user_id", values);
Intent intent = new Intent(getActivity(), Soft1714080902219Activity.class);
startActivity(intent);
}
}

}

public class MyDatabaseUtil extends SQLiteOpenHelper {
public MyDatabaseUtil(Context context, String name,
SQLiteDatabase.CursorFactory factory, int version) {
super(context, name, factory, version);
// TODO Auto-generated constructor stub
//
}

// @Override
public void onCreate(SQLiteDatabase arg0) {
// TODO Auto-generated method stub
}

@Override
public void onUpgrade(SQLiteDatabase arg0, int arg1, int arg2) {
// TODO Auto-generated method stub
}

/**
* * 判断某张表是否存在
* * @param tabName 表名 *
*
* @return
*/
public boolean tabIsExist(String tabName) {
boolean result = false;
if (tabName == null) {
return false;
}
SQLiteDatabase db = null;
Cursor cursor = null;
try {
db = this.getReadableDatabase();//此this是继承SQLiteOpenHelper类得到的
String sql = "select count(*) as c from sqlite_master where type ='table' and name ='" + tabName.trim() + "' ";
cursor = db.rawQuery(sql, null);
if (cursor.moveToNext()) {
int count = cursor.getInt(0);
if (count > 0) {
result = true;
}
}
} catch (Exception e) {
// TODO: handle exception
}
return result;
}
}
}
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Binary file added students/soft1714080902219/app/src/main/res/drawable/news2.png
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Binary file added students/soft1714080902219/app/src/main/res/drawable/news4.jpg
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210 changes: 205 additions & 5 deletions students/soft1714080902219/app/src/main/res/layout/soft_1714080902219_fragment1.xml
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Expand Up @@ -33,15 +33,15 @@
android:id="@+id/textView2"
android:layout_width="218dp"
android:layout_height="match_parent"
android:layout_alignEnd="@+id/searh1"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="-6dp"
android:layout_marginTop="0dp"
android:layout_marginEnd="70dp"
android:textColor="#000000"
android:textSize="15dp"
android:layout_marginEnd="-11dp"
android:inputType="text"
android:text="" />
android:text=""
android:textColor="#000000"
android:textSize="15dp" />

<SearchView
android:id="@+id/searh1"
Expand Down Expand Up @@ -138,5 +138,205 @@
android:background="#686868"
android:layout_below="@+id/LinearLayout1"
android:layout_width="match_parent"/>
<LinearLayout
android:id="@+id/news1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/view1"
android:layout_alignParentStart="true"
android:layout_marginStart="8dp"
android:layout_marginTop="-2dp">

<ImageView
android:id="@+id/newsIV1"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignTop="@+id/news1"
android:src="@drawable/title1" />

<RelativeLayout
android:layout_width="269dp"
android:layout_height="match_parent">

<TextView
android:id="@+id/tVi1"
android:layout_width="258dp"
android:layout_height="50dp"
android:layout_alignParentStart="true"
android:layout_marginStart="2dp"
android:layout_marginTop="2dp"
android:text="湖南一小学发生砍人事件值致2死2伤"
android:textSize="18dp" />

<TextView
android:id="@+id/newsTextId1"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="1"
/>

<TextView
android:id="@+id/tV1"
android:layout_width="259dp"
android:layout_height="48dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="0dp"
android:layout_marginTop="48dp"
android:textSize="12dp"
android:text="犯罪嫌疑人郑某君（男，31岁，宁运县柏家坪镇人）已被公安机关抓获，事件调" />
</RelativeLayout>

</LinearLayout>
<LinearLayout
android:id="@+id/news2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/news1"
android:layout_alignParentStart="true"
android:layout_marginStart="8dp"
android:layout_marginTop="-2dp">

<ImageView
android:id="@+id/newsIV2"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignTop="@+id/news2"
android:src="@drawable/news2" />

<RelativeLayout
android:layout_width="269dp"
android:layout_height="match_parent">

<TextView
android:id="@+id/tVi2"
android:layout_width="258dp"
android:layout_height="50dp"
android:layout_alignParentStart="true"
android:layout_marginStart="2dp"
android:layout_marginTop="2dp"
android:text="10位志愿军烈士遗骸回国了！两架歼-11战机护航"
android:textSize="18dp" />

<TextView
android:id="@+id/newsTextId2"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="2"
/>

<TextView
android:id="@+id/tV2"
android:layout_width="259dp"
android:layout_height="48dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="0dp"
android:layout_marginTop="48dp"
android:textSize="12dp"
android:text="11时36分，军方伊尔-76运输机将10位赴韩作战志愿军烈士遗骸送达沈阳。" />
</RelativeLayout>

</LinearLayout>
<LinearLayout
android:id="@+id/news3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/news2"
android:layout_alignParentStart="true"
android:layout_marginStart="8dp"
android:layout_marginTop="-2dp">

<ImageView
android:id="@+id/newsIV3"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignTop="@+id/news1"
android:src="@drawable/new3" />

<RelativeLayout
android:layout_width="269dp"
android:layout_height="match_parent">

<TextView
android:id="@+id/tVi3"
android:layout_width="258dp"
android:layout_height="50dp"
android:layout_alignParentStart="true"
android:layout_marginStart="2dp"
android:layout_marginTop="2dp"
android:text="印媒：印藏边境部队指挥部前移“应对中国”"
android:textSize="18dp" />

<TextView
android:id="@+id/newsTextId3"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="3"
/>

<TextView
android:id="@+id/tV3"
android:layout_width="259dp"
android:layout_height="48dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="0dp"
android:layout_marginTop="48dp"
android:textSize="12dp"
android:text="据印度《经济时报》2日报道，隶属印度内政部的“印藏边境警察部队”1日将指挥部正式" />
</RelativeLayout>

</LinearLayout>
<LinearLayout
android:id="@+id/news4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/news3"
android:layout_alignParentStart="true"
android:layout_marginStart="8dp"
android:layout_marginTop="-2dp">

<ImageView
android:id="@+id/newsIV4"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignTop="@+id/news1"
android:src="@drawable/news4" />

<RelativeLayout
android:layout_width="269dp"
android:layout_height="match_parent">

<TextView
android:id="@+id/tVi4"
android:layout_width="258dp"
android:layout_height="50dp"
android:layout_alignParentStart="true"
android:layout_marginStart="2dp"
android:layout_marginTop="2dp"
android:text="胡锡进再评赵立新言论：演艺界商界人士别乱碰政治"
android:textSize="18dp" />

<TextView
android:id="@+id/newsTextId4"
android:layout_width="0dp"
android:layout_height="0dp"
android:text="4"
/>

<TextView
android:id="@+id/tV4"
android:layout_width="259dp"
android:layout_height="48dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="0dp"
android:layout_marginTop="48dp"
android:textSize="12dp"
android:text="4月3日凌晨，赵立新在微博为自己引发争议的言论致歉，称自己的表达方式以及在与网" />
</RelativeLayout>

</LinearLayout>
</RelativeLayout>

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