hzuapps#90 hzuapps#94 hzuapps#95 hzuapps#7 已完成

app/src/main/java/edu/hzuapps/androidworks/homeworks/net1314080903232/Item.java

@@ -0,0 +1,13 @@
+package edu.hzuapps.androidworks.homeworks.net1314080903232;
+
+public class Item {
+	public Item(double value,int type){
+		this.value=value;
+		this.type=type;
+	}
+
+	public double value=0;
+
+	public int type=0;
+
+}

app/src/main/java/edu/hzuapps/androidworks/homeworks/net1314080903232/Net1314080903232MainActivity.java

@@ -0,0 +1,234 @@
+package edu.hzuapps.androidworks.homeworks.net1314080903232;
+
+
+import android.app.Activity;
+import android.media.AudioManager;
+import android.media.SoundPool;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.View;
+import android.widget.TextView;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+
+public class Net1314080903232MainActivity extends ActionBarActivity implements OnClickListener{
+	private HashMap<String, Integer> spMap=null;    //用于管理音频流
+    private SoundPool sp;   // 音频池
+    private int soundId;    // 音频ID
+
+    private TextView textView1;
+    private List<Item> items = new ArrayList<>();
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        spMap = new HashMap<>();
+
+        // 设置最多可容纳16个音频流
+        sp = new SoundPool(16, AudioManager.STREAM_MUSIC, 0);
+
+        // 用SoundPool的load方法加载指定音频文件，并用soundId保存返回的音频ID。
+        // 用HashMap来管理这些音频流
+        soundId = sp.load(this, R.raw.zero, 1);
+        spMap.put("0", soundId);
+        soundId = sp.load(this, R.raw.one, 1);
+        spMap.put("1", soundId);
+        soundId = sp.load(this, R.raw.two, 1);
+        spMap.put("2", soundId);
+        soundId = sp.load(this, R.raw.three, 1);
+        spMap.put("3", soundId);
+        soundId = sp.load(this, R.raw.four, 1);
+        spMap.put("4", soundId);
+        soundId = sp.load(this, R.raw.five, 1);
+        spMap.put("5", soundId);
+        soundId = sp.load(this, R.raw.six, 1);
+        spMap.put("6", soundId);
+        soundId = sp.load(this, R.raw.seven, 1);
+        spMap.put("7", soundId);
+        soundId = sp.load(this, R.raw.eight, 1);
+        spMap.put("8", soundId);
+        soundId = sp.load(this, R.raw.nine, 1);
+        spMap.put("9", soundId);
+        soundId = sp.load(this, R.raw.ac, 1);
+        spMap.put("ac", soundId);
+        soundId = sp.load(this, R.raw.del, 1);
+        spMap.put("del", soundId);
+        soundId = sp.load(this, R.raw.div, 1);
+        spMap.put("div", soundId);
+        soundId = sp.load(this, R.raw.dot, 1);
+        spMap.put(".", soundId);
+        soundId = sp.load(this, R.raw.equal, 1);
+        spMap.put("equal", soundId);
+        soundId = sp.load(this, R.raw.minus, 1);
+        spMap.put("minus", soundId);
+        soundId = sp.load(this, R.raw.mul, 1);
+        spMap.put("mul", soundId);
+        soundId = sp.load(this, R.raw.plus, 1);
+        spMap.put("plus", soundId);
+
+
+        textView1 = (TextView) findViewById(R.id.textView1);
+
+        // 为按钮设置点击监听事件
+        findViewById(R.id.btn0).setOnClickListener(this);
+        findViewById(R.id.btn1).setOnClickListener(this);
+        findViewById(R.id.btn2).setOnClickListener(this);
+        findViewById(R.id.btn3).setOnClickListener(this);
+        findViewById(R.id.btn4).setOnClickListener(this);
+        findViewById(R.id.btn5).setOnClickListener(this);
+        findViewById(R.id.btn6).setOnClickListener(this);
+        findViewById(R.id.btn7).setOnClickListener(this);
+        findViewById(R.id.btn8).setOnClickListener(this);
+        findViewById(R.id.btn9).setOnClickListener(this);
+        findViewById(R.id.btnadd).setOnClickListener(this);
+        findViewById(R.id.btnsub).setOnClickListener(this);
+        findViewById(R.id.btnmul).setOnClickListener(this);
+        findViewById(R.id.btndiv).setOnClickListener(this);
+        findViewById(R.id.btnclr).setOnClickListener(this);
+        findViewById(R.id.btneq).setOnClickListener(this);
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch(v.getId()){
+            case R.id.btn0:
+                textView1.append("0");  //在UI界面的TextView中显示 0
+                sp.play(spMap.get("0"), 1, 1, 0, 0, 1); //播放音频流
+                break;
+            case R.id.btn1:
+                textView1.append("1");
+                sp.play(spMap.get("1"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btn2:
+                textView1.append("2");
+                sp.play(spMap.get("2"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btn3:
+                textView1.append("3");
+                sp.play(spMap.get("3"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btn4:
+                textView1.append("4");
+                sp.play(spMap.get("4"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btn5:
+                textView1.append("5");
+                sp.play(spMap.get("5"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btn6:
+                textView1.append("6");
+                sp.play(spMap.get("6"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btn7:
+                textView1.append("7");
+                sp.play(spMap.get("7"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btn8:
+                textView1.append("8");
+                sp.play(spMap.get("8"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btn9:
+                textView1.append("9");
+                sp.play(spMap.get("9"), 1, 1, 0, 0, 1);
+                break;
+            case R.id.btnadd:
+                sp.play(spMap.get("plus"), 1, 1, 0, 0, 1);
+                items.add(new Item(Double.parseDouble(textView1.getText().toString()), Type.num));
+                checkAndcompute();
+                items.add(new Item(0, Type.add));
+                textView1.setText("");
+                break;
+            case R.id.btnsub:
+                sp.play(spMap.get("minus"), 1, 1, 0, 0, 1);
+                items.add(new Item(Double.parseDouble(textView1.getText().toString()), Type.num));
+                checkAndcompute();
+                items.add(new Item(0, Type.sub));
+                textView1.setText("");
+                break;
+            case R.id.btnmul:
+                sp.play(spMap.get("mul"), 1, 1, 0, 0, 1);
+                items.add(new Item(Double.parseDouble(textView1.getText().toString()), Type.num));
+                checkAndcompute();
+                items.add(new Item(0, Type.mul));
+                textView1.setText("");
+                break;
+            case R.id.btndiv:
+                sp.play(spMap.get("div"), 1, 1, 0, 0, 1);
+                items.add(new Item(Double.parseDouble(textView1.getText().toString()), Type.num));
+                checkAndcompute();
+                items.add(new Item(0, Type.div));
+                textView1.setText("");
+                break;
+            case R.id.btneq:
+                sp.play(spMap.get("equal"), 1, 1, 0, 0, 1);
+                items.add(new Item(Double.parseDouble(textView1.getText().toString()), Type.num));
+                checkAndcompute();
+                textView1.setText(items.get(0).value + "");
+                String str = items.get(0).value+"";
+                new Test(str).start();  // 启动另一个线程来播放结果
+                items.clear();
+                break;
+            case R.id.btnclr:
+                sp.play(spMap.get("ac"), 1, 1, 0, 0, 1);
+                textView1.setText("");
+        }
+    }
+    public void checkAndcompute(){
+
+        if(items.size()>=3){
+            double a=items.get(0).value;
+            double b=items.get(2).value;
+            int opt=items.get(1).type;
+            items.clear();
+            switch(opt){
+                case Type.add:
+                    items.add(new Item(a+b,Type.num));
+                    break;
+                case Type.sub:
+                    items.add(new Item(a-b,Type.num));
+                    break;
+                case Type.mul:
+                    items.add(new Item(a*b,Type.num));
+                    break;
+                case Type.div:
+                    items.add(new Item(a/b,Type.num));
+                    break;
+
+            }
+        }
+    }
+
+    //因为等下会用到Thread.sleep()方法，如果放在主线程会导致计算结果要等等音频文件播放结束才会显示
+    //这里为了不造成上面所说的UI界面类似卡死的情况，使用一个子线程来播放结果对应的音频
+    class Test extends Thread{
+        private String result;  //计算的结果
+        public Test(String s){
+            this.result = s;
+        }
+        @Override
+        public void run() {
+            String s;
+            sp.stop(spMap.get("equal"));
+            // 用for循环把计算结果分割成对应spMap中的key
+            for(int i=0; i<result.length(); i++){
+                try {
+                    Thread.sleep(350);  //该线程睡350毫秒
+                } catch (InterruptedException e) {
+                    e.printStackTrace();
+                }
+                s = result.substring(i, i+1);
+                sp.play(spMap.get(s), 1, 1, 0, 0, 1);
+            }
+        }
+    }
+}

app/src/main/java/edu/hzuapps/androidworks/homeworks/net1314080903232/Type.java

@@ -0,0 +1,11 @@
+package edu.hzuapps.androidworks.homeworks.net1314080903232;
+
+public class Type {
+
+	public static final int add=1;
+	public static final int sub=2;
+	public static final int mul=3;
+	public static final int div=4;
+	public static final int num=5;	
+
+}

app/src/main/res/layout-land/activity_fragment.xml

@@ -0,0 +1,27 @@
+<LinearLayout
+    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:orientation="horizontal"
+    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=".exmaples.FragmentDemoTitlesFragment">
+
+    <fragment
+        class="edu.hzuapps.androidworks.exmaples.FragmentDemoTitlesFragment"
+        android:id="@+id/fragment_titles"
+        android:layout_weight="1"
+        android:layout_width="0px"
+        android:layout_height="match_parent"
+        android:background="#00550033" />
+
+    <FrameLayout
+        android:id="@+id/fragment_content"
+        android:layout_weight="2"
+        android:layout_width="0px"
+        android:layout_height="match_parent" />
+
+</LinearLayout>

app/src/main/res/layout/activity_net1314080903232_main.xml

@@ -125,7 +125,7 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_weight="1" 
-                android:text="\"/>
+                android:text="/"/>
                 <Button
                     android:id="@+id/btneq"
                 android:layout_width="wrap_content"