android9.0之后wifi热点原生接口开发示例

话不多说，直接上代码了，这示例是直接调用原生接口实现的，没有使用反射的方式，如果找不到接口无法编译，请依赖一下对应系统的framewords.jar，并且参考我https://www.cnblogs.com/huhe/p/15848891.html文章的说明配置一下androidStudio编译环境即可

MainActivity.java

  1 package com.xxx.wifi_ap;
  2 
  3 import static android.net.ConnectivityManager.TETHERING_WIFI;
  4 
  5 import androidx.appcompat.app.AppCompatActivity;
  6 
  7 import android.content.BroadcastReceiver;
  8 import android.content.Context;
  9 import android.content.Intent;
 10 import android.content.IntentFilter;
 11 import android.net.ConnectivityManager;
 12 import android.net.wifi.WifiConfiguration;
 13 import android.net.wifi.WifiManager;
 14 import android.os.Bundle;
 15 import android.os.Handler;
 16 import android.os.Looper;
 17 import android.util.Log;
 18 import android.view.MotionEvent;
 19 import android.view.View;
 20 import android.view.inputmethod.InputMethodManager;
 21 import android.widget.Button;
 22 import android.widget.EditText;
 23 import android.widget.LinearLayout;
 24 import android.widget.TextView;
 25 import android.widget.Toast;
 26 
 27 public class MainActivity extends AppCompatActivity implements View.OnClickListener, View.OnTouchListener {
 28 
 29     private static final IntentFilter WIFI_INTENT_FILTER = new IntentFilter(WifiManager.WIFI_AP_STATE_CHANGED_ACTION);
 30     private static final String TAG = "MainActivity";
 31     private ConnectivityManager mConnectivityManager;
 32     private WifiManager mWifiManager;
 33     private final ConnectivityManager.OnStartTetheringCallback mOnStartTetheringCallback =
 34             new ConnectivityManager.OnStartTetheringCallback() {
 35                 @Override
 36                 public void onTetheringFailed() {
 37                     super.onTetheringFailed();
 38                     Log.e(TAG,"onTetheringFailed!!!");
 39                 }
 40             };
 41 
 42     private LinearLayout root_layout;
 43     private Button mAPEnable;
 44     private EditText mEditName;
 45     private EditText mEditPwd;
 46     private TextView mApMsg;
 47     private Button mSave;
 48     private Button mGoDesktop;
 49     private boolean mIsOnClick;
 50     private String mApName,mApPwd;
 51 
 52     @Override
 53     protected void onCreate(Bundle savedInstanceState) {
 54         super.onCreate(savedInstanceState);
 55         setContentView(R.layout.activity_main);
 56 
 57         mConnectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
 58         mWifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
 59 
 60         WIFI_INTENT_FILTER.addAction(Intent.ACTION_AIRPLANE_MODE_CHANGED);
 61         registerReceiver(mReceiver, WIFI_INTENT_FILTER);
 62 
 63         mInitView();
 64     }
 65 
 66     @Override
 67     protected void onDestroy() {
 68         unregisterReceiver(mReceiver);
 69         super.onDestroy();
 70     }
 71 
 72     private void mInitView(){
 73         root_layout = findViewById(R.id.root_layout);
 74         root_layout.setOnTouchListener(this);
 75 
 76         mAPEnable = findViewById(R.id.ap_enable);
 77         mAPEnable.setText(mWifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_DISABLED?"打开热点":"关闭热点");
 78 
 79         mEditName = findViewById(R.id.edit_name);
 80         mApName = mWifiManager.getWifiApConfiguration().SSID;
 81         mEditName.setText(mApName);
 82 
 83         mEditPwd = findViewById(R.id.edit_pwd);
 84         mApPwd = mWifiManager.getWifiApConfiguration().preSharedKey;
 85         mEditPwd.setText(mApPwd);
 86 
 87         mApMsg = findViewById(R.id.ap_msg);
 88         mSave = findViewById(R.id.save_data);
 89         mGoDesktop = findViewById(R.id.go_desktop);
 90 
 91         mAPEnable.setOnClickListener(this);
 92         mSave.setOnClickListener(this);
 93         mGoDesktop.setOnClickListener(this);
 94     }
 95 
 96     private void setApName(String deviceName) {
 97         final WifiConfiguration config = mWifiManager.getWifiApConfiguration();
 98         config.SSID = deviceName;
 99         // TODO: If tether is running, turn off the AP and restart it after setting config.
100         mWifiManager.setWifiApConfiguration(config);
101     }
102 
103     private void setApPassword(String devicePwd) {
104         final WifiConfiguration config = mWifiManager.getWifiApConfiguration();
105         config.preSharedKey = devicePwd;
106         // TODO: If tether is running, turn off the AP and restart it after setting config.
107         mWifiManager.setWifiApConfiguration(config);
108     }
109 
110     private void setApProfile(int deviceProfile) {
111         final WifiConfiguration config = mWifiManager.getWifiApConfiguration();
112         config.allowedKeyManagement.set(deviceProfile);
113         // TODO: If tether is running, turn off the AP and restart it after setting config.
114         mWifiManager.setWifiApConfiguration(config);
115     }
116 
117     private int getApProfile(){
118         final WifiConfiguration config = mWifiManager.getWifiApConfiguration();
119         int mSecurityValue;
120         if (config != null && config.getAuthType() == WifiConfiguration.KeyMgmt.NONE) {
121             mSecurityValue = WifiConfiguration.KeyMgmt.NONE;
122         } else {
123             mSecurityValue = WifiConfiguration.KeyMgmt.WPA2_PSK;
124         }
125         return mSecurityValue;
126     }
127 
128     private String getApProfileStr(int profile){
129         return profile == WifiConfiguration.KeyMgmt.NONE?"NONE":"WPA2_PSK";
130     }
131 
132     private void setApEnable(boolean enable){
133         if(enable){
134             startTether();
135         }else {
136             stopTether();
137         }
138     }
139 
140     private void saveConfig(){
141         if(mWifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_DISABLED){
142             runOnUiThread(new Runnable() {
143                 @Override
144                 public void run() {
145                     Toast.makeText(MainActivity.this, "请先打开热点再保存修改!", Toast.LENGTH_LONG).show();
146                 }
147             });
148             return;
149         }
150 
151         if(!mApName.equals(mEditName.getText().toString())){
152             setApName(mEditName.getText().toString());
153         }
154 
155         if(!mApPwd.equals(mEditPwd.getText().toString())){
156             setApPassword(mEditPwd.getText().toString());
157         }
158     }
159 
160     @Override
161     public void onClick(View v) {
162         switch (v.getId()){
163             case R.id.ap_enable:
164                 try {
165                     setApEnable(mIsOnClick = !mIsOnClick);
166                 }catch (Exception e){
167                     e.printStackTrace();
168                 }
169                 break;
170             case R.id.save_data:
171                 try {
172                     saveConfig();
173                 }catch (Exception e){
174                     e.printStackTrace();
175                 }
176                 break;
177             case R.id.go_desktop:
178                 moveTaskToBack(true);
179                 break;
180         }
181     }
182 
183     void stopTether() {
184         Log.i(TAG,"stopTether()");
185         mConnectivityManager.stopTethering(TETHERING_WIFI);
186     }
187 
188     void startTether() {
189         Log.i(TAG,"startTether()");
190         mConnectivityManager.startTethering(TETHERING_WIFI, true,
191                 mOnStartTetheringCallback, new Handler(Looper.getMainLooper()));
192     }
193 
194     private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
195         @Override
196         public void onReceive(Context context, Intent intent) {
197             String action = intent.getAction();
198             if (WifiManager.WIFI_AP_STATE_CHANGED_ACTION.equals(action)) {
199                 final int state = intent.getIntExtra(
200                         WifiManager.EXTRA_WIFI_AP_STATE, WifiManager.WIFI_AP_STATE_FAILED);
201                 handleWifiApStateChanged(state);
202             } else if (Intent.ACTION_AIRPLANE_MODE_CHANGED.equals(action)) {
203             }
204         }
205     };
206 
207     private void handleWifiApStateChanged(int state) {
208         String changed;
209         switch (state) {
210             case WifiManager.WIFI_AP_STATE_ENABLING:
211                 Log.i(TAG,"WIFI_AP_STATE_ENABLING");
212                 changed = "热点开启中";
213                 break;
214             case WifiManager.WIFI_AP_STATE_ENABLED:
215                 Log.i(TAG,"WIFI_AP_STATE_ENABLED");
216                 changed = "热点已开启";
217                 break;
218             case WifiManager.WIFI_AP_STATE_DISABLING:
219                 Log.i(TAG,"WIFI_AP_STATE_DISABLING");
220                 changed = "热点关闭中";
221                 break;
222             case WifiManager.WIFI_AP_STATE_DISABLED:
223                 Log.i(TAG,"WIFI_AP_STATE_DISABLED");
224                 changed = "热点已关闭";
225                 break;
226             default:
227                 Log.i(TAG,"default");
228                 changed = "default";
229                 break;
230         }
231         updateApInfo(changed);
232     }
233 
234     private void updateApInfo(String changed) {
235         String name = mWifiManager.getWifiApConfiguration().SSID;
236         String pwd = mWifiManager.getWifiApConfiguration().preSharedKey;
237         String profile = getApProfileStr(getApProfile());
238 
239         mUpdateMsg("stateChanged:"+changed+" name:"+name+" pwd:"+pwd+" profile:"+profile);
240     }
241 
242     private void mUpdateMsg(String msg){
243         runOnUiThread(() -> {
244             mAPEnable.setText(mWifiManager.getWifiApState() == WifiManager.WIFI_AP_STATE_DISABLED?"打开热点":"关闭热点");
245             mApMsg.setText(msg);
246         });
247     }
248 
249     @Override
250     public boolean onTouch(View view, MotionEvent motionEvent) {
251         if(null != getCurrentFocus()){
252             InputMethodManager manager= (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
253             if(manager != null){
254                 return manager.hideSoftInputFromWindow(getCurrentFocus().getWindowToken(),0);
255             }
256             return false;
257         }
258         return true;
259     }
260 }

activity_main.xml

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:app="http://schemas.android.com/apk/res-auto"
 4     android:id="@+id/root_layout"
 5     xmlns:tools="http://schemas.android.com/tools"
 6     android:layout_width="match_parent"
 7     android:layout_height="match_parent"
 8     android:layout_gravity="center"
 9     android:gravity="center"
10     android:orientation="vertical"
11     tools:context=".MainActivity">
12 
13     <Button
14         android:id="@+id/ap_enable"
15         android:layout_width="wrap_content"
16         android:layout_height="wrap_content"
17         android:text="打开热点"/>
18 
19     <TextView
20         android:id="@+id/ap_msg"
21         android:layout_width="wrap_content"
22         android:layout_height="wrap_content"
23         android:text="热点已关闭"/>
24 
25     <EditText
26         android:id="@+id/edit_name"
27         android:layout_width="200dp"
28         android:layout_height="wrap_content"
29         android:hint="热点名称"/>
30 
31     <EditText
32         android:id="@+id/edit_pwd"
33         android:layout_width="200dp"
34         android:layout_height="wrap_content"
35         android:hint="热点密码"/>
36 
37     <Button
38         android:id="@+id/save_data"
39         android:layout_width="wrap_content"
40         android:layout_height="wrap_content"
41         android:text="保存修改"/>
42 
43     <Button
44         android:id="@+id/go_desktop"
45         android:layout_width="wrap_content"
46         android:layout_height="wrap_content"
47         android:text="回到桌面"/>
48 
49 </LinearLayout>

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原文地址：https://www.cnblogs.com/huhe/p/15950042.html