传统 Hal 开发笔记6----App 访问硬件服务

目录

• 获取服务调用接口

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|----------------|
| App 访问硬件服务 |

获取服务调用接口

随便在一个原生应用里调用系统服务 HELLO_SERVICE，调用相关接口即可。

xuejie@vt-PowerEdge-R740:~/A11a133a12$ git diff frameworks/base/packages/xxxxx/xxxxxoActivity.java
diff --git a/frameworks/base/packages/xxxxx/xxxxxoActivity.java b/frameworks/base/packages/xxxxx/xxxxxoActivity.java
index 424fda9721..9d76ac106c 100644
--- a/frameworks/base/packages/xxxxx/xxxxxoActivity.java
+++ b/frameworks/base/packages/xxxxx/xxxxxoActivity.java
@@ -39,6 +39,7 @@ import java.lang.reflect.Method;
 import java.net.NetworkInterface;
 import java.net.SocketException;
 import java.text.NumberFormat;
+import android.os.Hello;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.Executors;
@@ -238,6 +239,14 @@ public class xxxxActivity extends BaseActivity  {
         adapter = new VersionInfoAdapter(this, LIST_SIZE);
         mLVVersionInfo.setAdapter(adapter);
         mHandler = new MyHandler();
+       Hello helloHal = (Hello)getSystemService(Context.HELLO_SERVICE);
+        try {
+            helloHal.open();
+            helloHal.write("nihao");
+            Log.d("HelloHal_test",helloHal.read());
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
 
         android.app.ActionBar mActionBar = getActionBar();
         if (mActionBar != null) {

查看日志：

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OK，传统HAL 大功告成！