在build.gradle文件中加入依赖jar

debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5'

releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5'

testCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5'

在application中添加如下代码即可

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);