Android 开源框架Logger的使用

日志开源框架的话，Logger不可不谈。简单的调用就能得到清晰的Log输出，对于日后调试和修改bug都是不错的选择。

◆Logger的官方地址

https://github.com/orhanobut/logger

◆Logger的使用

Eclipse：直接下载源码导入项目中

Android studio：compile 'com.orhanobut:logger:1.15'

◆使用方法

    import com.orhanobut.Logger.LogLevel;    import com.orhanobut.Logger.Logger;    import com.orhanobut.Logger.Settings;    public class MainActivity extends Activity {        ...protected void onCreate(Bundle savedInstanceState) {...JSONObject json = createJson();                Settings settings = Logger.init("EllisonLog"); // 配置tagsettings.methodCount(3); // 配置Log中调用堆栈的函数行数// settings.hideThreadInfo(); // 隐藏Log中的线程信息settings.methodOffset(0); // 设置调用堆栈的函数偏移值，0的话则从打印该Log的函数开始输出堆栈信息settings.logLevel(LogLevel.FULL); // 设置Log的是否输出，LogLevel.NONE即无Log输出Logger.i("activity created"); // 打印infoLogger.e(new Exception("test exception"), "error occured"); // 打印exceptionLogger.json(json.toString()); // 打印json        }private JSONObject createJson() {try {    JSONObject person = new JSONObject();        person.put("phone", "12315");        JSONObject address = new JSONObject();      address.put("country", "china");      address.put("province", "jiangsu");    address.put("city", "nanjing");    person.put("address", address);    person.put("married", true);    return person;} catch (JSONException e) {Logger.e(e, "create json error occured");}return null;}    }

◆ログ输出

●info07-14 17:58:38.246: I/EllisonLog(26917): ╔════════════════════════════════════════════════════════════════════════════════════════07-14 17:58:38.247: I/EllisonLog(26917): ║ Thread: main07-14 17:58:38.247: I/EllisonLog(26917): ╟───────────────────────────────────────────────07-14 17:58:38.247: I/EllisonLog(26917): ║ Instrumentation.callActivityOnCreate  (Instrumentation.java:1111)07-14 17:58:38.247: I/EllisonLog(26917): ║    Activity.performCreate  (Activity.java:6315)07-14 17:58:38.248: I/EllisonLog(26917): ║       MainActivity.onCreate  (MainActivity.java:38)07-14 17:58:38.248: I/EllisonLog(26917): ╟───────────────────────────────────────────────07-14 17:58:38.248: I/EllisonLog(26917): ║ activity created07-14 17:58:38.248: I/EllisonLog(26917): ╚════════════════════════════════════════════════════════════════════════════════════════●exception07-14 17:58:38.249: E/EllisonLog(26917): ╔════════════════════════════════════════════════════════════════════════════════════════07-14 17:58:38.249: E/EllisonLog(26917): ║ Thread: main07-14 17:58:38.249: E/EllisonLog(26917): ╟───────────────────────────────────────────────07-14 17:58:38.249: E/EllisonLog(26917): ║ Instrumentation.callActivityOnCreate  (Instrumentation.java:1111)07-14 17:58:38.249: E/EllisonLog(26917): ║    Activity.performCreate  (Activity.java:6315)07-14 17:58:38.250: E/EllisonLog(26917): ║       MainActivity.onCreate  (MainActivity.java:39)07-14 17:58:38.250: E/EllisonLog(26917): ╟───────────────────────────────────────────────07-14 17:58:38.250: E/EllisonLog(26917): ║ error occured : java.lang.Exception: test exception07-14 17:58:38.250: E/EllisonLog(26917): ║ at com.example.timeapidemo.MainActivity.onCreate(MainActivity.java:39)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.app.Activity.performCreate(Activity.java:6315)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1111)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2431)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2541)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.app.ActivityThread.access$900(ActivityThread.java:182)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1406)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.os.Handler.dispatchMessage(Handler.java:102)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.os.Looper.loop(Looper.java:148)07-14 17:58:38.250: E/EllisonLog(26917): ║ at android.app.ActivityThread.main(ActivityThread.java:5613)07-14 17:58:38.250: E/EllisonLog(26917): ║ at java.lang.reflect.Method.invoke(Native Method)07-14 17:58:38.250: E/EllisonLog(26917): ║ at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)07-14 17:58:38.251: E/EllisonLog(26917): ║ at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)07-14 17:58:38.251: E/EllisonLog(26917): ╚════════════════════════════════════════════════════════════════════════════════════════●json07-14 17:58:38.251: D/EllisonLog(26917): ╔════════════════════════════════════════════════════════════════════════════════════════07-14 17:58:38.252: D/EllisonLog(26917): ║ Thread: main07-14 17:58:38.252: D/EllisonLog(26917): ╟───────────────────────────────────────────────07-14 17:58:38.252: D/EllisonLog(26917): ║ Instrumentation.callActivityOnCreate  (Instrumentation.java:1111)07-14 17:58:38.252: D/EllisonLog(26917): ║    Activity.performCreate  (Activity.java:6315)07-14 17:58:38.252: D/EllisonLog(26917): ║       MainActivity.onCreate  (MainActivity.java:40)07-14 17:58:38.252: D/EllisonLog(26917): ╟───────────────────────────────────────────────07-14 17:58:38.252: D/EllisonLog(26917): ║ {07-14 17:58:38.252: D/EllisonLog(26917): ║   "phone": "12315",07-14 17:58:38.252: D/EllisonLog(26917): ║   "address": {07-14 17:58:38.252: D/EllisonLog(26917): ║     "country": "china",07-14 17:58:38.252: D/EllisonLog(26917): ║     "province": "jiangsu",07-14 17:58:38.252: D/EllisonLog(26917): ║     "city": "nanjing"07-14 17:58:38.252: D/EllisonLog(26917): ║   },07-14 17:58:38.253: D/EllisonLog(26917): ║   "married": true07-14 17:58:38.253: D/EllisonLog(26917): ║ }07-14 17:58:38.253: D/EllisonLog(26917): ╚════════════════════════════════════════════════════════════════════════════════════════

Logger还可以打印xml，日后追加。