thmodelAndroid/app/src/main/java/com/android/chmo/ui/dialog/UpdateDialog.java

package com.android.chmo.ui.dialog;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.util.Log;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TextView;

import com.android.chmo.R;
import com.android.chmo.ui.activity.MainActivity;
import com.blankj.utilcode.util.AppUtils;
import com.liulishuo.filedownloader.BaseDownloadTask;
import com.liulishuo.filedownloader.FileDownloadListener;
import com.liulishuo.filedownloader.FileDownloader;

import java.io.File;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;

public class UpdateDialog extends Dialog {
    private String version, desc, url;
    @BindView(R.id.tv_version)
    TextView tvVersion;
    @BindView(R.id.tv_desc)
    TextView tvDesc;

    private UpdateDialog(@NonNull Context context, String version, String desc, String url) {
        super(context, R.style.DialogStyle);
        this.version = version;
        this.desc = desc;
        this.url = url;
    }

    public static void Present(Context context, String version, String desc, String url) {
        UpdateDialog updateDialo = new UpdateDialog(context, version, desc, url);
        updateDialo.show();
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog_update);
        ButterKnife.bind(this);
        Window window = getWindow();
        WindowManager.LayoutParams wlp = window.getAttributes();
        wlp.gravity = Gravity.CENTER;
        window.setAttributes(wlp);
        window.setWindowAnimations(R.style.DialogAnimation);
        int width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 280, getContext().getResources().getDisplayMetrics());
        window.setLayout(width, WindowManager.LayoutParams.WRAP_CONTENT);
        setCancelable(false);
        tvVersion.setText(version);
        tvDesc.setText(desc);
    }

    @OnClick(R.id.btn_update)
    void update() {
        final File file = new File(getContext().getExternalCacheDir(), "update" + System.currentTimeMillis() + ".apk");
        final ProgressDialog progressDialog = new ProgressDialog(getContext(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);
        progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        progressDialog.setTitle("正在下载");
        progressDialog.setProgress(0);
        progressDialog.setCancelable(false);
        progressDialog.show();
        FileDownloader.getImpl().create(url)
                .setPath(file.getPath())
                .setListener(new FileDownloadListener() {
                    @Override
                    protected void pending(BaseDownloadTask task, int soFarBytes, int totalBytes) {
                    }

                    @Override
                    protected void connected(BaseDownloadTask task, String etag, boolean isContinue, int soFarBytes, int totalBytes) {
                        progressDialog.show();
                    }

                    @Override
                    protected void progress(BaseDownloadTask task, int soFarBytes, int totalBytes) {
                        progressDialog.setProgress((int) (soFarBytes * 100L / totalBytes));
                    }

                    @Override
                    protected void blockComplete(BaseDownloadTask task) {
                    }

                    @Override
                    protected void retry(final BaseDownloadTask task, final Throwable ex, final int retryingTimes, final int soFarBytes) {
                    }

                    @Override
                    protected void completed(BaseDownloadTask task) {
                        AppUtils.installApp(file, "com.android.chmo.fileProvider");
                        progressDialog.dismiss();
                    }

                    @Override
                    protected void paused(BaseDownloadTask task, int soFarBytes, int totalBytes) {
                    }

                    @Override
                    protected void error(BaseDownloadTask task, Throwable e) {
                        progressDialog.dismiss();
                        new AlertDialog.Builder(getContext(), AlertDialog.THEME_DEVICE_DEFAULT_LIGHT)
                                .setPositiveButton("重试", (dialog, which) -> update())
                                .setTitle("下载失败")
                                .setCancelable(false)
                                .show();
                    }

                    @Override
                    protected void warn(BaseDownloadTask task) {
                    }
                }).start();
    }


}