Android学习笔记(二)

日志输入

LogActivity

Java代码

package org.wp.activity;  
 
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;  
 
/**
 *
 * 调整日志输出的级别
 * Eclipse ==> Window ==> Preferences ==> Android ==> DDMS ==> Logging Level
 * 日志输入
 * Eclipse ==> Window ==> Show View ==> Other ==> Android ==> LogCat
 *
 * @author wp
 *
 */  
 
public class LogActivity extends Activity {
    private static final String TAG = "LogActivity"; // 快捷键ctrl+shift+x  
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Log.i(TAG, "LogActivity Created");
    }
}

单元测试()

LogTest

Java代码

package org.wp.activity;  
 
import android.test.AndroidTestCase;
import android.util.Log;  
 
/**
 * JunitRun ==> LogTest(实例化) ==> testSave()
 * Debug
 * Step Into F5
 * Step Over F6
 * Run to Line Ctrl + R
 * Step Return F7
 *
 * @author wp
 *
 */  
 
public class LogTest extends AndroidTestCase {  
 
    private static final String TAG = "LogTest";  
 
    public void testSave() throws Exception {
        int i = 1 + 1;
        String result = practice(i);
        Log.i(TAG, "result=" + i);
        Log.i(TAG, "result=" + result);
    }  
 
    private String practice(int i) {
        int a = i;
        int b = 100;
        int c = a + b;
        String out = "wp";
        String result = out + c;
        return result;
    }
}

AndroidManifest.xml

Xml代码