安卓 内存泄漏检测工具 LeakCanary 使用

韩梦飞沙 yue31313 韩亚飞 han_meng_fei_sha 313134555@qq.com

配置 
build.gradle

dependencies {
   debugCompile 'com.squareup.leakcanary:leakcanary-android:1.4-beta2'
   releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.4-beta2'
   testCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.4-beta2'
 }

使用说明

1. 建立RefWatcher全局变量

2. 使用RefWatcher去监控引用，Activity,Fragment等中的内存泄漏

例子

第一步：定义RefWathcher全局变量

package com.app.client;

import android.app.Application;
import android.content.Context;

import com.squareup.leakcanary.LeakCanary;
import com.squareup.leakcanary.RefWatcher;

public class MyApplication extends Application {

    public static RefWatcher getRefWatcher(Context context){

        MyApplication application = (MyApplication) context.getApplicationContext();
        return application.refWatcher;
    }

    private RefWatcher refWatcher;

    @Override
    public void onCreate() {
        super.onCreate();
        refWatcher = LeakCanary.install(this);
    }
}

第二步：监控Activity中的内存泄漏问题

package com.app.client;

import android.app.Application;
import android.content.Context;

import com.squareup.leakcanary.LeakCanary;
import com.squareup.leakcanary.RefWatcher;

public class MyApplication extends Application {

    public static RefWatcher getRefWatcher(Context context){

        MyApplication application = (MyApplication) context.getApplicationContext();
        return application.refWatcher;
    }

    private RefWatcher refWatcher;

    @Override
    public void onCreate() {
        super.onCreate();
        refWatcher = LeakCanary.install(this);
    }
}

Manifest配置

 <application
        android:name=".MyApplication"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme" >
        <activity android:name=".MainActivity" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

第三步：生成的泄漏结果图