Merge pull request #1534 from skyzzk/master

#7 实验7代码

students/com1714080901240/app/src/main/AndroidManifest.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="android.MusicPlayer">
+
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.BLUETOOTH" />
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="音乐播放器"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".Com1714080901240Activity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name=".Com1714080901240Activity_01" />
+        <activity android:name=".Com1714080901240Activity_02" />
+        <activity android:name=".Com1714080901240Activity_03" />
+        <activity android:name=".Com1714080901240Activity_04"></activity>
+    </application>
+
+</manifest>

students/com1714080901240/app/src/main/java/android/MusicPlayer/Com1714080901240Activity_02.java

@@ -17,4 +17,11 @@ public void click03(View view){
         Intent intent3 = new Intent(this,Com1714080901240Activity_03.class);
         startActivity(intent3);
     }
+    public void click04(View view){
+        //创建一个Intent对象，开启下一个activity
+        Intent intent4 = new Intent(this,Com1714080901240Activity_04.class);
+        startActivity(intent4);
+    }
+
+
 }

students/com1714080901240/app/src/main/java/android/MusicPlayer/Com1714080901240Activity_04.java

@@ -0,0 +1,74 @@
+package android.MusicPlayer;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+public class Com1714080901240Activity_04 extends AppCompatActivity {
+
+    private BluetoothAdapter mBluetoothAdapter;
+    private TextView text1,text2,text3;
+    private Button btn,btn_1;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_com1714080901240_04);
+
+        text1=(TextView) this.findViewById(R.id.tv2);  //已配对
+        text2= (TextView) this.findViewById(R.id.tv1); //状态信息
+        text3= (TextView) this.findViewById(R.id.tv3); //未配对
+        btn=(Button) this.findViewById(R.id.btn);
+
+        mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+        IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
+        registerReceiver(mReceiver,filter);
+        IntentFilter filter2=new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
+        registerReceiver(mReceiver,filter2);
+
+        btn.setOnClickListener(new View.OnClickListener(){
+            @Override
+            public void onClick(View arg0){
+                if(!mBluetoothAdapter.isEnabled()){
+                    mBluetoothAdapter.enable();
+                }
+                mBluetoothAdapter.startDiscovery();
+                text2.setText("正在搜索...");
+            }
+
+        });
+    }
+    public void onDestroy(){
+        super.onDestroy();
+        //解除注册
+        unregisterReceiver(mReceiver);
+        Log.e("destroy","解除注册");
+    }
+    private BroadcastReceiver mReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+            Log.e("sky",action);
+            if(action.equals(BluetoothDevice.ACTION_FOUND)){
+                //BluetoothDevice device = intent.getParcelableArrayExtra(BluetoothDevice.EXTRA_DEVICE);
+                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+                if(device.getBondState()==BluetoothDevice.BOND_BONDED){
+                    //显示已配对设备
+                    text1.append("\n"+device.getName()+"==>"+device.getAddress()+"\n");
+                }else if(device.getBondState()!=BluetoothDevice.BOND_BONDED){
+                    text3.append("\n"+device.getName()+"==>"+device.getAddress()+"\n");
+                }
+            }else if(action.equals(BluetoothAdapter.ACTION_DISCOVERY_FINISHED)){
+                text2.setText("搜索完成...");
+            }
+        }
+    };
+
+}

students/com1714080901240/app/src/main/res/layout/activity_com1714080901240_02.xml

@@ -13,7 +13,8 @@
             android:layout_width="139dp"
             android:layout_height="wrap_content"
             android:layout_column="0"
-            android:text="加载本地歌曲" />
+            android:text="蓝牙启动"
+            android:onClick="click04"/>
 
         <Button
             android:id="@+id/button8"

students/com1714080901240/app/src/main/res/layout/activity_com1714080901240_04.xml

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/activity_main"
+    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=".Com1714080901240Activity_04">
+
+
+    <Button
+        android:text="搜索蓝牙"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="19dp"
+        android:id="@+id/btn"
+        android:layout_alignParentLeft="true"
+        android:layout_alignParentStart="true" />
+
+    <TextView
+        android:text="初始状态"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignBottom="@+id/btn"
+        android:layout_toRightOf="@+id/btn"
+        android:layout_toEndOf="@+id/btn"
+        android:layout_marginLeft="45dp"
+        android:layout_marginStart="45dp"
+        android:layout_marginBottom="14dp"
+        android:id="@+id/tv1" />
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:id="@+id/tv2"
+        android:text="已配对蓝牙设备如下："
+        android:layout_marginLeft="12dp"
+        android:layout_marginStart="12dp"
+        android:layout_marginTop="53dp"
+        android:layout_below="@+id/btn"
+        android:layout_alignParentLeft="true"
+        android:layout_alignParentStart="true" />
+
+    <TextView
+        android:text="未配对蓝牙设备如下："
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="107dp"
+        android:id="@+id/tv3"
+        android:layout_below="@+id/tv2"
+        android:layout_alignLeft="@+id/tv2"
+        android:layout_alignStart="@+id/tv2" />
+
+</RelativeLayout>
+

students/com1714080901240/app/src/main/res/values/dimens.xml

@@ -0,0 +1,6 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>