public void readText() {
final TextView textView = (TextView) findViewById(R.id.textView);
final File directory = Environment.getExternalStorageDirectory();
final StringBuffer sb = new StringBuffer();
Flowable
.create(new FlowableOnSubscribe<String>() {
@Override
public void subscribe(FlowableEmitter<String> e) throws Exception {
try {
FileReader reader = new FileReader(directory + "/haha.pdf");
BufferedReader br = new BufferedReader(reader);
String str;
while ((str = br.readLine()) != null && !e.isCancelled()) {
while (e.requested() == 0) {
if (e.isCancelled()) {
break;
}
}
e.onNext(str);
}
br.close();
reader.close();
e.onComplete();
} catch (Exception err) {
e.onError(err);
}
}
}, BackpressureStrategy.ERROR)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Subscriber<String>() {
@Override
public void onSubscribe(Subscription s) {
mSubscription = s;
s.request(1);
}
@Override
public void onNext(String s) {
sb.append(s);
mSubscription.request(1);
}
@Override
public void onError(Throwable t) {
}
@Override
public void onComplete() {
textView.setText(sb);
}
});
}
Flowable读取文本文件
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转载自blog.csdn.net/Kikitious_Du/article/details/78856688
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