Android性能优化及性能优化工具

Getting started
In your build.gradle:
 dependencies {
   debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5.2'
   releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5.2'
 }
In your Application class:

public class ExampleApplication extends Application {

  @Override public void onCreate() {

    super.onCreate();

    if (LeakCanary.isInAnalyzerProcess(this)) {

      // This process is dedicated to LeakCanary for heap analysis.

      // You should not init your app in this process.

      return;

    }

    LeakCanary.install(this);

    // Normal app init code...

  }

}

public class CommonUtils {

    private static CommonUtils instance;

    private Context context;

    private CommonUtils(Context context) {

        this.context = context;

    }
    public static CommonUtils getInstance(Context context) {

        if (instance == null) {

            instance = new CommonUtils(context);

        }

        return instance;

    }

}

 protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        CommonUtils commonUtils = CommonUtils.getInstance(this);

    }