niumenglin · niumenglin · May 4, 2019 · May 5, 2019
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,10 @@
+*.iml
+.gradle
+/local.properties
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
diff --git a/app/.gitignore b/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/app/build.gradle b/app/build.gradle
@@ -0,0 +1,28 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.nml.bt"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/app/src/androidTest/java/com/nml/bt/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/nml/bt/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package com.nml.bt;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("com.nml.bt", appContext.getPackageName());
+    }
+}
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.nml.bt">
+
+    <!--权限配置-->
+    <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="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/app/src/main/java/com/nml/bt/MainActivity.java b/app/src/main/java/com/nml/bt/MainActivity.java
@@ -0,0 +1,171 @@
+package com.nml.bt;
+
+import android.bluetooth.BluetoothAdapter;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+/**
+ * 简介：1.蓝牙概述
+ *      2.蓝牙功能
+ *      3.如何获取本地蓝牙信息
+ *      4.如何绑定蓝牙
+ *      5.如何使用蓝牙进行数据传输
+ * @author niumenglin
+ */
+public class MainActivity extends AppCompatActivity {
+
+    public static final String TAG = "MainActivity";
+    /**
+     * 打开蓝牙请求码
+     */
+    public static final int REQUEST_OPEN_BLUE_TOOTH = 0X01;
+
+    private TextView mTvStatus;
+    private Button mBtnOpenBlueTooth;
+    private BluetoothAdapter mBluetoothAdapter;
+
+    /**
+     * 蓝牙是否开启
+     */
+    private boolean mIsOpen = false;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        findViews();
+        init();
+        addListener();
+
+    }
+
+    private void findViews() {
+        mTvStatus = findViewById(R.id.tv_status);
+        mBtnOpenBlueTooth =findViewById(R.id.btn_open_bluetooth);
+    }
+
+    private void init() {
+        //获取本地蓝牙的适配器
+        mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+        //判断蓝牙功能是否存在
+        if (mBluetoothAdapter == null){
+            showToast(getResources().getString(R.string.main_no_support));
+            return;
+        }
+
+        //获取名称与mac地址
+        String name = mBluetoothAdapter.getName();
+        String address = mBluetoothAdapter.getAddress();
+        Log.d(TAG,"name:"+name+"\n address:"+address);
+
+        //蓝牙状态：STATE_ON=已打开；STATE_TURNING_ON=正在打开；STATE_TURNING_OFF=正在关闭；STATE_OFF=已经关闭
+        int state = mBluetoothAdapter.getState();
+        switch (state){
+            case BluetoothAdapter.STATE_ON:
+                showToast("蓝牙已经打开");
+                break;
+            case BluetoothAdapter.STATE_TURNING_ON:
+                showToast("蓝牙正在打开...");
+                break;
+            case BluetoothAdapter.STATE_TURNING_OFF:
+                showToast("蓝牙正在关闭...");
+                break;
+            case BluetoothAdapter.STATE_OFF:
+                showToast("蓝牙已经关闭");
+                break;
+        }
+
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        getBlueToothStatus();
+    }
+
+    private void addListener() {
+
+        //打开蓝牙设备(前提是蓝牙是关闭状态)
+        mBtnOpenBlueTooth.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                //判断蓝牙是否已经打开
+                mIsOpen = mBluetoothAdapter.isEnabled();
+                if (mIsOpen){
+                    //关闭蓝牙
+                    boolean isClose = mBluetoothAdapter.disable();
+                    Log.e(TAG, "蓝牙是否关闭:" + isClose);
+                    mTvStatus.setText(String.format(getString(R.string.main_bluetooth_status_string),"已关闭"));
+                    mBtnOpenBlueTooth.setText(getResources().getString(R.string.main_open_bluetooth));
+                }else{
+                    //蓝牙关闭状态-->打开蓝牙
+//                    boolean isOpen = mBluetoothAdapter.enable();
+//                    String str = String.format(getString(R.string.main_bluetooth_status),isOpen);
+//                    Log.e(TAG, "str-->" + str);
+//                    showToast(str);
+
+                    //调用系统API打开蓝牙
+                    Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
+                    startActivityForResult(intent,REQUEST_OPEN_BLUE_TOOTH);
+                }
+
+            }
+        });
+    }
+
+    /**
+     * 回调函数
+     * @param requestCode 请求码
+     * @param resultCode 结果码
+     * @param data 返回数据
+     */
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (requestCode == REQUEST_OPEN_BLUE_TOOTH){
+            if (resultCode == RESULT_CANCELED){
+                //失败
+                showToast(getResources().getString(R.string.main_request_fail));
+            }else{
+                //成功
+                showToast(getResources().getString(R.string.main_request_success));
+                mTvStatus.setText(String.format(getString(R.string.main_bluetooth_status_string),"已开启"));
+                mBtnOpenBlueTooth.setText(getResources().getString(R.string.main_close_bluetooth));
+            }
+        }
+    }
+
+    /**
+     * 提示
+     * @param msg
+     */
+    private void showToast(String msg){
+        Toast.makeText(this,msg,Toast.LENGTH_LONG).show();
+    }
+
+    private void getBlueToothStatus(){
+        //判断蓝牙状态(开启或关闭)
+        mIsOpen = mBluetoothAdapter.isEnabled();
+        String statusStr;
+        String btnDesc;
+        if (mIsOpen){
+            statusStr = String.format(getString(R.string.main_bluetooth_status_string),"已开启");
+            btnDesc = getResources().getString(R.string.main_close_bluetooth);
+        }else{
+            statusStr = String.format(getString(R.string.main_bluetooth_status_string),"已关闭");
+            btnDesc = getResources().getString(R.string.main_open_bluetooth);
+        }
+        mTvStatus.setText(statusStr);
+        mBtnOpenBlueTooth.setText(btnDesc);
+    }
+
+
+}
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>