配合Rxjava，直接代碼

Observable.create((ObservableOnSubscribe) e -> {

StringBuilder stringBuilder = new StringBuilder();

InputStream inputStream = getResources().getAssets().open("techscan.json");

InputStreamReader isr = new InputStreamReader(inputStream);

BufferedReader reader = new BufferedReader(isr);

String jsonLine;

while ((jsonLine = reader.readLine()) != null) {

stringBuilder.append(jsonLine);

}

reader.close();

isr.close();

inputStream.close();

e.onNext(stringBuilder.toString());

e.onComplete();

}).map(s -> {

List list = new ArrayList<>(4096);

GridConfig gridConfig;

JsonArray elements = new JsonParser().parse(s).getAsJsonArray();

for (int i = 0, size = elements.size(); i < size; i++) {

gridConfig = C.GSON.fromJson(elements.get(i).getAsJsonObject(), GridConfig.class);

list.add(gridConfig);

}

Log.d("TAG", "list.size: " + list.size());

return list;

}).map(list -> {

BriteDatabase.Transaction transaction = SqlBriteDatabase.getDb().newTransaction();

for (GridConfig gridConfig : list) {

SqlBriteDatabase.insert(GridConfigDao.TABLE_NAME, new GridConfigDao.Builder(gridConfig).build());

}

transaction.markSuccessful();

transaction.end();

return true;

})

.subscribeOn(Schedulers.io())

.observeOn(AndroidSchedulers.mainThread())

.subscribe(new Observer() {

QMUITipDialog tipDialog;

@Override

public void onSubscribe(Disposable d) {

tipDialog = DialogUtils.digLoading(activity, "正在載入配置項");

tipDialog.show();

}

@Override

public void onNext(Boolean aBoolean) {

if (aBoolean) {

ToastUtils.showShortToast("載入完成");

} else {

ToastUtils.showShortToast("載入失敗");

}

}

@Override

public void onError(Throwable e) {

e.printStackTrace();

DialogUtils.dimiss(tipDialog);

}

@Override

public void onComplete() {

DialogUtils.dimiss(tipDialog);

}

});

其實根本問題就是把.json文件中的字符讀出來，然后想干什么就可以干什么

讀.json文件字符代碼

StringBuilder stringBuilder = new StringBuilder();

InputStream inputStream = getResources().getAssets().open("techscan.json");

InputStreamReader isr = new InputStreamReader(inputStream);

BufferedReader reader = new BufferedReader(isr);

String jsonLine;

while ((jsonLine = reader.readLine()) != null) {

stringBuilder.append(jsonLine);

}

reader.close();

isr.close();

inputStream.close();

String result = stringBuilder .toString();

總結(jié)

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