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BufferOperatorActivity.java
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BufferOperatorActivity.java
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package info.androidhive.rxandroidexamples.operators;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.widget.Button;
import android.widget.TextView;
import com.jakewharton.rxbinding2.view.RxView;
import java.util.List;
import java.util.concurrent.TimeUnit;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.Unbinder;
import info.androidhive.rxandroidexamples.R;
import io.reactivex.Observable;
import io.reactivex.Observer;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.disposables.Disposable;
import io.reactivex.functions.Function;
import io.reactivex.schedulers.Schedulers;
public class BufferOperatorActivity extends AppCompatActivity {
private static final String TAG = BufferOperatorActivity.class.getSimpleName();
@BindView(R.id.tap_result)
TextView txtTapResult;
@BindView(R.id.tap_result_max_count)
TextView txtTapResultMax;
@BindView(R.id.layout_tap_area)
Button btnTapArea;
private Disposable disposable;
private Unbinder unbinder;
private int maxTaps = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_buffer_operator);
unbinder = ButterKnife.bind(this);
RxView.clicks(btnTapArea)
.map(new Function<Object, Integer>() {
@Override
public Integer apply(Object o) throws Exception {
return 1;
}
})
.buffer(3, TimeUnit.SECONDS)
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(new Observer<List<Integer>>() {
@Override
public void onSubscribe(Disposable d) {
disposable = d;
}
@Override
public void onNext(List<Integer> integers) {
Log.e(TAG, "onNext: " + integers.size() + " taps received!");
if (integers.size() > 0) {
maxTaps = integers.size() > maxTaps ? integers.size() : maxTaps;
txtTapResult.setText(String.format("Received %d taps in 3 secs", integers.size()));
txtTapResultMax.setText(String.format("Maximum of %d taps received in this session", maxTaps));
}
}
@Override
public void onError(Throwable e) {
Log.e(TAG, "onError: " + e.getMessage());
}
@Override
public void onComplete() {
Log.e(TAG, "onComplete");
}
});
/**
* Example of buffer emitting 3 items at a time
* */
Observable<Integer> integerObservable = Observable.just(1, 2, 3, 4,
5, 6, 7, 8, 9);
integerObservable.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.buffer(3)
.subscribe(new Observer<List<Integer>>() {
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onNext(List<Integer> integers) {
Log.d(TAG, "onNext");
for (Integer integer : integers) {
Log.d(TAG, "Item: " + integer);
}
}
@Override
public void onError(Throwable e) {
}
@Override
public void onComplete() {
Log.d(TAG, "All items emitted!");
}
});
}
@Override
protected void onDestroy() {
super.onDestroy();
unbinder.unbind();
disposable.dispose();
}
}