android 中Handler 对内存造成溢出和泄露的优化方案 使用 Weak Handler Memory safer implementation of android.os.Handler

dependencies {
compile 'com.badoo.mobile:android-weak-handler:1.1'
}

import com.badoo.mobile.util.WeakHandler;

public class ExampleActivity extends Activity {

private WeakHandler mHandler; // We still need at least one hard reference to WeakHandler

protected void onCreate(Bundle savedInstanceState) {
mHandler = new WeakHandler();
...
}

private void onClick(View view) {
mHandler.postDelayed(new Runnable() {
view.setVisibility(View.INVISIBLE);
}, 5000);
}
}

原理看下