jni學習實例（三）-a7105模塊驅動之activity

package com.example.a7105demo;

public class a7105Class {
	 /*聲明函數*/
    //初始化函數 
    public native int Init();
    public native String stringFromJNI();
    public native int Read(int buf[], int length);
    public native int Write(int buf[], int length);
    public native int CLOSE();
    static{  
        System.loadLibrary("a7105");/*加載JNI庫*/
    }
}


package com.example.a7105demo;

import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {
	
	a7105Class a7105_class;
	
	private  Button btn1 = null;  
    private  Button btn2 = null;
    
    private TextView mTextView1;
    private EditText mEditText1;
    
    public static String str1;
    public static String str2;
    
    private static final String TAG = "a7105_MainActivity"; 
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        a7105_class = new a7105Class();   //聲明類  
        a7105_class.Init();             //調用JNI庫裏的初始化函數   
        
        btn1 = (Button)findViewById(R.id.a7105_read);  
        btn1.setOnClickListener(new Btn1Listener());  //捆綁監聽器     
        
        //按鈕   
        btn2 = (Button)findViewById(R.id.a7105_write);  
        btn2.setOnClickListener(new Btn2Listener());  //捆綁監聽器     
        
        mTextView1 = (TextView)findViewById(R.id.textView1);
        mEditText1 = (EditText)findViewById(R.id.editText1);
    }

    
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);   
        return true;
    }
    
    class Btn1Listener implements OnClickListener {
    	
    	int[] buf = new int[8]; 
		@Override
		public void onClick(View arg0) {
			// TODO Auto-generated method stub
			//a7105_class.Init();  
            System.out.println("debug a7105_READ");  
            a7105_class.Read(buf, 8);         
            Log.d(TAG,  
                    "buf0= " + Integer.toHexString(buf[0]) + " buf1= "  
                            + Integer.toHexString(buf[1]) + " buf2= "  
                            + Integer.toHexString(buf[2]) + " buf=3 "  
                            + Integer.toHexString(buf[3])); 
            
            str1 = Integer.toHexString(buf[0]);
	        for (int j = 1; j < 8; j++) {
	        	 str1 += Integer.toHexString(buf[j]);
			}   
	        mTextView1.setText(str1);
	        //a7105_class.CLOSE(); 
		}  
    }  
    
    class Btn2Listener implements OnClickListener {
    	
    	int[] intBuf = new int[8];
    	char[] byteBuf = new char[8];
    	int length;
        @Override  
        public void onClick(View v) { 
        	//a7105_class.Init(); 
        	
        	str2 = mEditText1.getText().toString();
        	Log.d(TAG, "str2 = "+str2);
        	
        	byteBuf = str2.toCharArray();
        	if(byteBuf.length < 8)
        		length = byteBuf.length;
        	if(byteBuf.length > 8)
        		length = 8;
			for (int j = 0; j < length; j++) {  
			      intBuf[j] = byteBuf[j] - '0'; 
			      Log.d(TAG, "intBuf = "+intBuf[j]+"byteBuf = "+byteBuf[j]);
			}
	        	
	        System.out.println("debug a7105_WRITE");  
	        a7105_class.Write(intBuf, length); 
	        //a7105_class.CLOSE();  
        }  
    }
    
}