hzuapps#5 hzuapps#420 第五次实验

students/net1814080903139/src/main/java/edu/hzuapps/androids/AlarmActivity.java

@@ -1,12 +1,31 @@
 package edu.hzuapps.androids;
 
+import android.app.Activity;
+import android.media.MediaPlayer;
 import android.os.Bundle;
 
-import androidx.appcompat.app.AppCompatActivity;
+public class AlarmActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceSate){
+        super.onCreate(savedInstanceSate);
+        setContentView(R.layout.alarm_play_aty);
 
-public class AlarmActivity extends AppCompatActivity {
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_alarm);
+        mp = MediaPlayer.create(this,R.raw.music);
+        mp.start();
     }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        finish();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        mp.stop();
+        mp.release();
+    }
+
+    private MediaPlayer mp;
 }

students/net1814080903139/src/main/java/edu/hzuapps/androids/AlarmReceiver.java

@@ -0,0 +1,22 @@
+package edu.hzuapps.androids;
+
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+
+public class AlarmReceiver extends BroadcastReceiver {
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        System.out.println("闹钟执行了");
+        AlarmManager am =(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
+        am.cancel(PendingIntent.getBroadcast(context,getResultCode(),new Intent(context,AlarmReceiver.class),0));
+
+        Intent i = new Intent(context,AlarmActivity.class);
+        i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
+        context.startActivity(i);
+
+    }
+}

students/net1814080903139/src/main/java/edu/hzuapps/androids/AlarmView.java

@@ -0,0 +1,210 @@
+package edu.hzuapps.androids;
+
+import android.app.AlarmManager;
+import android.app.AlertDialog;
+import android.app.PendingIntent;
+import android.app.TimePickerDialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemLongClickListener;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+import android.widget.TimePicker;
+
+import java.util.Calendar;
+
+public class AlarmView extends LinearLayout {
+
+    private Button btnAddAlarm;
+    private ListView lvAlarmList;
+    private ArrayAdapter<AlarmData> adapter;
+    private AlarmManager alarmManager;
+
+    public AlarmView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        init();
+    }
+
+    public AlarmView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        init();
+    }
+
+    public AlarmView(Context context) {
+        super(context);
+        init();
+    }
+
+    private void init() {
+        alarmManager = (AlarmManager) getContext().getSystemService(
+                Context.ALARM_SERVICE);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+        btnAddAlarm = (Button) findViewById(R.id.btnAddAlarm);
+        lvAlarmList = (ListView) findViewById(R.id.lvAlarmList);
+
+        adapter = new ArrayAdapter<AlarmData>(getContext(),
+                android.R.layout.simple_list_item_1);
+        lvAlarmList.setAdapter(adapter);
+
+        readSaveAlarmList();
+        // adapter.add(new AlarmData(System.currentTimeMillis()));
+
+        btnAddAlarm.setOnClickListener(new OnClickListener() {
+
+            @Override
+            public void onClick(View v) {
+                addAlarm();
+            }
+        });
+        // 长按某项删除
+        lvAlarmList.setOnItemLongClickListener(new OnItemLongClickListener() {
+
+            @Override
+            public boolean onItemLongClick(AdapterView<?> arg0, View arg1,
+                                           final int position, long arg3) {
+
+                new AlertDialog.Builder(getContext())
+                        .setTitle("操作选项")
+                        .setItems(new CharSequence[] { "删除", "删除1" },
+                                new DialogInterface.OnClickListener() {
+
+                                    @Override
+                                    public void onClick(DialogInterface dialog,
+                                                        int which) {
+                                        switch (which) {
+                                            case 0:
+                                                deleteAlarm(position);
+                                                break;
+
+                                            default:
+                                                break;
+                                        }
+                                    }
+                                }).setNegativeButton("取消", null).show();
+                return true;
+            }
+        });
+    }
+
+    private void deleteAlarm(int position) {
+        AlarmData ad = adapter.getItem(position);
+        adapter.remove(ad);
+        saveAlarmList();
+
+        alarmManager.cancel(PendingIntent.getBroadcast(getContext(),
+                ad.getId(), new Intent(getContext(), AlarmReceiver.class), 0));
+    }
+
+    private void addAlarm() {
+
+        Calendar c = Calendar.getInstance();
+
+        new TimePickerDialog(getContext(), new TimePickerDialog.OnTimeSetListener() {
+
+            @Override
+            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
+
+                Calendar calendar = Calendar.getInstance();
+                calendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
+                calendar.set(Calendar.MINUTE, minute);
+                calendar.set(Calendar.SECOND, 0);
+                calendar.set(Calendar.MILLISECOND, 0);
+
+                Calendar currentTime = Calendar.getInstance();
+                if (currentTime.getTimeInMillis() <= calendar.getTimeInMillis()) {
+                    calendar.setTimeInMillis(calendar.getTimeInMillis() + 24 * 60 * 60 * 1000);
+                }
+                AlarmData ad = new AlarmData(calendar.getTimeInMillis());
+                adapter.add(ad);
+                alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
+                        ad.getTime(),
+                        5 * 60 * 1000,
+                        PendingIntent.getBroadcast(getContext(),(int)calendar.getTimeInMillis(), new Intent(getContext(),
+                                                AlarmReceiver.class), 0));
+                saveAlarmList();
+            }
+        }, c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE), true).show();
+    }
+
+    private static final String KEY_ALARM_LIST = "alarmlist";
+
+    private void saveAlarmList() {
+        Editor editor = getContext().getSharedPreferences(
+                AlarmView.class.getName(), Context.MODE_PRIVATE).edit();
+
+        StringBuffer sb = new StringBuffer();
+
+        for (int i = 0; i < adapter.getCount(); i++) {
+            sb.append(adapter.getItem(i).getTime()).append(",");
+        }
+        if (sb.length() > 1) {
+            String content = sb.toString().substring(0, sb.length() - 1);
+            editor.putString(KEY_ALARM_LIST, content);
+
+            System.out.println(content);
+        } else {
+            editor.putString(KEY_ALARM_LIST, null);
+        }
+        editor.commit();
+    }
+
+    private void readSaveAlarmList() {
+        SharedPreferences sp = getContext().getSharedPreferences(
+                AlarmView.class.getName(), Context.MODE_PRIVATE);
+        String content = sp.getString(KEY_ALARM_LIST, null);
+
+        if (content != null) {
+            String[] timeStrings = content.split(",");
+            for (String string : timeStrings) {
+                adapter.add(new AlarmData(Long.parseLong(string)));
+            }
+        }
+    }
+
+    // 自定义数据类型
+    private static class AlarmData {
+        private long time = 0;
+        private Calendar date;
+        private String timeLabel = "";
+
+        public AlarmData(long time) {
+            this.time = time;
+            date = Calendar.getInstance();
+            date.setTimeInMillis(time);
+            timeLabel = String.format("%d月%d日 %d:%d",
+                    date.get(Calendar.MONTH) + 1,
+                    date.get(Calendar.DAY_OF_MONTH),
+                    date.get(Calendar.HOUR_OF_DAY), date.get(Calendar.MINUTE));
+        }
+
+        public long getTime() {
+            return time;
+        }
+
+        public String getTimeLabel() {
+            return timeLabel;
+        }
+
+        public int getId() {
+            return (int) (getTime() / 1000 / 60);
+        }
+
+        @Override
+        public String toString() {
+            return getTimeLabel();
+        }
+
+    }
+}

students/net1814080903139/src/main/res/layout/alarm.xml

@@ -1,13 +1,21 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<edu.hzuapps.androids.AlarmView xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:gravity="center"
     android:background="@color/lightyellow"
     android:orientation="vertical">
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/second"
-        android:textSize="22sp"/>
-</LinearLayout>
+
+    <ListView
+        android:id="@+id/lvAlarmList"
+        android:layout_width="fill_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1" >
+    </ListView>
+
+    <Button
+        android:id="@+id/btnAddAlarm"
+        android:text="@string/add_alarm"
+        android:layout_width="fill_parent"
+        android:layout_height="wrap_content" />
+</edu.hzuapps.androids.AlarmView>

students/net1814080903139/src/main/res/layout/alarm_play_aty.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:textAppearance="?android:attr/textAppearanceLarge"
+        android:gravity="center"
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:text="Play Sound"/>
+</LinearLayout>