Merge pull request #1153 from xyl123580/master

#5 #26 第五次实验

students/net1814080903110/AndroidManifest.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
     package="edu.hzuapps.androidlabs.Net1814080903110">
 
     <application
@@ -9,8 +10,16 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <activity android:name=".TestEditScheduleActivity"></activity>
+        <activity android:name=".TestActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
         <activity
-            android:name=".Activity2"
+            android:name=".RemindActivity"
             android:label="Activity2">
             <intent-filter>
                 <action android:name="com.intent.Activity2" />
@@ -19,7 +28,7 @@
             </intent-filter>
         </activity>
         <activity
-            android:name=".Activity1"
+            android:name=".SettingActivity"
             android:label="Activity1">
             <intent-filter>
                 <action android:name="com.intent.Activity1" />
@@ -34,6 +43,15 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name=".Setting2Activity"
+            tools:ignore="MissingClass">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
     </application>
 
 </manifest>

students/net1814080903110/MainSQLiteOpenHelper.java

@@ -0,0 +1,30 @@
+package edu.hzuapps.androidlabs.Net1814080903110;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+
+public class MainSQLiteOpenHelper extends SQLiteOpenHelper {
+
+    private static final String db_name = "MySchedule";//自定义的数据库名；
+    private static final int version = 1;//版本号,增加则会执行onUpgrade方法?
+
+    public MainSQLiteOpenHelper(Context context) {
+        super(context, db_name, null, version);
+
+    }
+
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        String  sql ="create table schedules(" +
+                "id Integer primary key autoincrement," +     //id自增,只支持integer不支持int
+                "scheduleDetail varchar(50))";
+        db.execSQL(sql);
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+        db.execSQL("drop table if exists courses");
+        onCreate(db);
+    }
+}

students/net1814080903110/Net1814080903110Activity.java

@@ -1,30 +1,43 @@
 package edu.hzuapps.androidlabs.Net1814080903110;
 
-import androidx.appcompat.app.AppCompatActivity;
-
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.os.Build;
 import android.os.Bundle;
 import android.view.View;
-import android.widget.AdapterView;
-import android.widget.ArrayAdapter;
 import android.widget.Button;
-import android.content.Intent;
-import android.widget.ListView;
+import android.widget.TextView;
+
+import androidx.annotation.RequiresApi;
+import androidx.appcompat.app.AppCompatActivity;
+
 
 public class Net1814080903110Activity extends AppCompatActivity {
 
+    private TestCourseData mySQLiteOpenHelper;
+    private String schedule;
+    private SQLiteDatabase myDatabase;
+    private Context context;
+    private TextView mySchedule[] = new TextView[5];
+
+
+    @RequiresApi(api = Build.VERSION_CODES.N)
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_net1814080903110);
 
+        //跳转按钮
         Button button = (Button) findViewById(R.id.button1);
         button.setOnClickListener(new View.OnClickListener() {
-                                      @Override
-                                      public void onClick(View v) {
-                                          Intent intent = new Intent(Net1814080903110Activity.this, SettingActivity.class);
-                                          startActivity(intent);
-                                      }
-                                  });
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(Net1814080903110Activity.this, SettingActivity.class);
+                startActivity(intent);
+            }
+        });
         Button button2 = (Button) findViewById(R.id.button2);
         button2.setOnClickListener(new View.OnClickListener() {
             @Override
@@ -33,28 +46,7 @@ public void onClick(View v) {
                 startActivity(intent);
             }
         });
-
-        ListView lv = (ListView) findViewById(R.id.dates);
-
-        ArrayAdapter s1 = new ArrayAdapter<String>(this, R.layout.listview_item, mobileArray);
-
-        lv.setAdapter(s1);
-
-
-        AdapterView.OnItemClickListener listener = new AdapterView.OnItemClickListener() {
-            @Override
-            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
-
-            }
-        };
-        lv.setOnItemClickListener(listener);
-    }
-
-    String[] mobileArray = { //
-            "日程一", "日程二", "日程三", "日程四"
-    };
-
-}
+    }}
 
 
 

students/net1814080903110/Setting2Activity.java

@@ -0,0 +1,71 @@
+package edu.hzuapps.androidlabs.Net1814080903110;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.ContentValues;
+import android.content.Intent;
+import android.database.sqlite.SQLiteDatabase;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+
+public class Setting2Activity extends AppCompatActivity implements View.OnClickListener {
+
+    private String schedule;
+    private Button editBtn,deleteBtn;
+    private EditText scheduleInput;
+    private TestCourseData mySQLiteOpenHelper;
+    private SQLiteDatabase myDatabase;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_setting_2);
+
+        // 首先获取到意图对象
+        Intent intent = getIntent();
+        // 获取到传递过来的姓名
+        schedule = intent.getStringExtra("schedule");
+
+        initView();
+    }
+    private void initView() {
+        mySQLiteOpenHelper = new TestCourseData(this);
+        myDatabase = mySQLiteOpenHelper.getWritableDatabase();
+
+        editBtn = findViewById(R.id.editBtn);
+        editBtn.setOnClickListener(this);
+        deleteBtn = findViewById(R.id.deleteSchedule);
+        deleteBtn.setOnClickListener(this);
+        scheduleInput = findViewById(R.id.scheduleInput);
+        scheduleInput.setText(schedule);
+    }
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()){
+            case R.id.deleteSchedule:
+                deleteMySchedule();
+                break;
+            case R.id.editBtn:
+                editSchedule();
+                break;
+        }
+    }
+    private void editSchedule() {
+        ContentValues values = new ContentValues();
+        values.put("scheduleDetail",scheduleInput.getText().toString());
+
+        myDatabase.update("schedules",values,"scheduleDetail=?",new String[]{schedule});
+
+        Intent intent = new Intent(Setting2Activity.this, SettingActivity.class);
+        startActivity(intent);
+    }
+
+    private void deleteMySchedule() {
+        myDatabase.delete("schedules","scheduleDetail=?",new String[]{schedule});
+
+        Intent intent = new Intent(Setting2Activity.this, SettingActivity.class);
+        startActivity(intent);
+    }
+}