Android应用软件开发

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3分钟

2.1.4 实施步骤

实施步骤

步骤1:新建一个Module,命名为Ex2_1_4,进入MainActivity.java,修改代码。

表2-1-12 Ex2_1_4 MainActivity.java 清单

package com.example.ex2_1_4;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Log.i("test","onCreate() is running....");
    }
    @Override
    protected void onStart() {
        super.onStart();
        Log.i("test","onStart() is running....");
    }

    @Override
    protected void onRestart() {
        super.onRestart();
        Log.i("test","onRestart() is running....");
    }

    @Override
    protected void onResume() {
        super.onResume();
        Log.i("test","onResume() is running....");
    }

    @Override
    protected void onPause() {
        super.onPause();
        Log.i("test","onPause() is running....");
    }

    @Override
    protected void onStop() {
        super.onStop();
        Log.i("test","onStop() is running....");
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.i("test","onDestroy() is running....");
    }
}

步骤2:在图2-1-4-2中,选择【Edit Filter Configuration】。打开【Create New Logcat Filter】窗体,如图2-1-4-3,在Filter Name中填写Ex2_1_4,Log Tag中输入之前Log.i方法中的第一个参数值——“test”。

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12

步骤3:运行后,在Logcat中观察