識別輸入裝置ID與InputDevice裝置（Improved event management）

識別輸入裝置ID與InputDevice裝置（Improved event management）

新建一個繼承Activity類的InputDeviceActivity，並設置佈局文件爲：inputdevice.xml。

在佈局文件中添加一個TextView用於顯示InputDevice返回的數據

    <TextView

        android:id="@+id/inputdevice_tv"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:scrollHorizontally="true"

        android:text="@string/show_information"

        android:textSize="22sp" />

之後在Activity代碼中覆寫OnTouchEvent（）方法

package lyx.feng.second;

......

public class InputDeviceActivity extends Activity {

    private String temp = "";

    private String enter = "\n";

    private TextView tv = null;

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       super.setContentView(R.layout.inputdevice);

       this.tv = (TextView) super.findViewById(R.id.inputdevice_tv);

    }

 

    @Override

    public boolean onTouchEvent(MotionEvent event) {

       InputDevice inputDevice = event.getDevice();

       temp = "";

       temp = temp + "座標：";

       temp = "(" + event.getX() + "," + event.getY() + ")" + enter;

       temp = temp + "設備名稱：" + inputDevice.getName() + enter;

       temp = temp + "設備ID：" + inputDevice.getId() + enter;

       temp = temp + "鍵盤類型：" + inputDevice.getKeyboardType() + enter;

      

       temp = temp + "設備描述：" + inputDevice.getDescriptor() + enter;

       this.tv.setText(temp);

       return super.onTouchEvent(event);

    }

}