com.lzy.demo.okgo.SimpleDownloadActivity.java Source code

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Here is the source code for com.lzy.demo.okgo.SimpleDownloadActivity.java

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/*
 * Copyright 2016 jeasonlzy(?)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.lzy.demo.okgo;

import android.Manifest;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.text.format.Formatter;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import com.lzy.demo.R;
import com.lzy.demo.base.BaseDetailActivity;
import com.lzy.demo.ui.NumberProgressBar;
import com.lzy.demo.utils.Urls;
import com.lzy.okgo.OkGo;
import com.lzy.okgo.callback.FileCallback;
import com.lzy.okgo.model.Progress;
import com.lzy.okgo.model.Response;
import com.lzy.okgo.request.base.Request;

import java.io.File;
import java.text.NumberFormat;

import butterknife.Bind;
import butterknife.ButterKnife;
import butterknife.OnClick;

/**
 * ================================================
 *     jeasonlzy?Github?https://github.com/jeasonlzy
 *     1.0
 * 16/9/11
 * ??    
 * ?
 * ================================================
 */
public class SimpleDownloadActivity extends BaseDetailActivity {

    private static final int REQUEST_PERMISSION_STORAGE = 0x01;

    @Bind(R.id.fileDownload)
    Button btnFileDownload;
    @Bind(R.id.downloadSize)
    TextView tvDownloadSize;
    @Bind(R.id.tvProgress)
    TextView tvProgress;
    @Bind(R.id.netSpeed)
    TextView tvNetSpeed;
    @Bind(R.id.pbProgress)
    NumberProgressBar pbProgress;
    private NumberFormat numberFormat;

    @Override
    protected void onActivityCreate(Bundle savedInstanceState) {
        setContentView(R.layout.activity_file_download);
        ButterKnife.bind(this);
        setTitle("?");

        numberFormat = NumberFormat.getPercentInstance();
        numberFormat.setMinimumFractionDigits(2);

        checkSDCardPermission();
    }

    /** SD??? */
    protected void checkSDCardPermission() {
        if (ActivityCompat.checkSelfPermission(this,
                Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[] { Manifest.permission.WRITE_EXTERNAL_STORAGE },
                    REQUEST_PERMISSION_STORAGE);
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
            @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == REQUEST_PERMISSION_STORAGE) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                //???
            } else {
                showToast("????");
            }
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        //Activity??
        OkGo.getInstance().cancelTag(this);
    }

    @OnClick(R.id.fileDownload)
    public void fileDownload(View view) {
        OkGo.<File>get(Urls.URL_DOWNLOAD)//
                .tag(this)//
                .headers("header1", "headerValue1")//
                .params("param1", "paramValue1")//
                .execute(new FileCallback("OkGo.apk") {

                    @Override
                    public void onStart(Request<File, ? extends Request> request) {
                        btnFileDownload.setText("");
                    }

                    @Override
                    public void onSuccess(Response<File> response) {
                        handleResponse(response);
                        btnFileDownload.setText("?");
                    }

                    @Override
                    public void onError(Response<File> response) {
                        handleError(response);
                        btnFileDownload.setText("");
                    }

                    @Override
                    public void downloadProgress(Progress progress) {
                        System.out.println(progress);

                        String downloadLength = Formatter.formatFileSize(getApplicationContext(),
                                progress.currentSize);
                        String totalLength = Formatter.formatFileSize(getApplicationContext(), progress.totalSize);
                        tvDownloadSize.setText(downloadLength + "/" + totalLength);
                        String speed = Formatter.formatFileSize(getApplicationContext(), progress.speed);
                        tvNetSpeed.setText(String.format("%s/s", speed));
                        tvProgress.setText(numberFormat.format(progress.fraction));
                        pbProgress.setMax(10000);
                        pbProgress.setProgress((int) (progress.fraction * 10000));
                    }
                });
    }
}