目前的项目之中基本上都会存在版本更新的功能,分为强制更新和推荐更新,其实功能点都是一样的,推荐更新只是增加一个按钮让更新的弹框隐藏掉而已,这里仅记录强制更新的功能首先需要跟接口约定,需要判断是否弹出更新弹框
val isUpdate = VersionUtils.compareVersions("服务端新的版本号","本地版本号")
if (result.isIsNew && isUpdate) {//检查更新val checkVersionUtils = CheckVersionUtils(this, result.versionPath, result.versionDesc, result.newVersion)checkVersionUtils.showUpdateVersion()
}
这里的isNew为true表示有新版本更新,为false则没有更新,为了防止服务端出错,这里加上了本地的版本号和服务端的版本号进行匹配的字段
CheckVersionUtils
public class CheckVersionUtils {private Context mContext;private Dialog mDialog;private TextView tvUpdate, tvProgress;private ProgressBar progressBar;private Logger logger = LoggerFactory.getLogger(CheckVersionUtils.class);//下载地址private String apkUrl;private List<String> apkDes;private String newVersion;public CheckVersionUtils(Context context, String apkUrl, List<String> apkDes, String newVersion) {this.mContext = context;this.apkUrl = apkUrl;this.apkDes = apkDes;this.newVersion = newVersion;}/*** 版本更新弹框*/@SuppressLint("SetTextI18n")public void showUpdateVersion() {mDialog = new Dialog(mContext, R.style.Teldialog);mDialog.setContentView(R.layout.dialog_update_version);mDialog.setCanceledOnTouchOutside(false);mDialog.setCancelable(false);mDialog.show();tvUpdate = mDialog.findViewById(R.id.tv_update);tvProgress = mDialog.findViewById(R.id.tv_progress);progressBar = mDialog.findViewById(R.id.progress_bar);TextView tvVersion = mDialog.findViewById(R.id.tv_version);tvVersion.setText("v" + newVersion);TextView tvDes = mDialog.findViewById(R.id.tv_des);StringBuffer stringBuffer = new StringBuffer();for (int i = 0; i < apkDes.size(); i++) {String des = "· " + apkDes.get(i) + "\n";stringBuffer.append(des);}tvDes.setText(stringBuffer);//立即更新tvUpdate.setOnClickListener(view -> {tvUpdate.setVisibility(View.GONE);tvProgress.setVisibility(View.VISIBLE);progressBar.setVisibility(View.VISIBLE);initDownload();});}/*** 下载apk*/private void initDownload() {OkHttpClient okHttpClient = new OkHttpClient.Builder().build();Request request = new Request.Builder().url(apkUrl).get().build();okHttpClient.newCall(request).enqueue(new Callback() {@Overridepublic void onFailure(Call call, IOException e) {logger.error("apk下载失败:" + e.getMessage());apkUrl = apkUrl.replace("https", "http");initDownload();}@Overridepublic void onResponse(Call call, Response response) throws IOException {ResponseBody body = response.body();InputStream inputStream = body.byteStream();saveFile(inputStream, Environment.getExternalStorageDirectory() + "/" + "demo.apk", body.contentLength());}});}/*** @param saveFile 存放的地址* @param fileLength 文件的长度*/@SuppressLint("SetTextI18n")private void saveFile(InputStream inputStream, String saveFile, final long fileLength) {long count = 0;try {FileOutputStream outputStream = new FileOutputStream(new File(saveFile));int length = -1;byte[] bytes = new byte[1024 * 10];while ((length = inputStream.read(bytes)) != -1) {// 写入文件outputStream.write(bytes, 0, length);count += length;final long finalCount = count;((Activity) mContext).runOnUiThread(() -> {// 设置进度条最大值progressBar.setMax((int) fileLength);// 设置下载进度progressBar.setProgress((int) finalCount);// 设置进度文本 (100 * 当前进度 / 总进度)tvProgress.setText((int) (100 * finalCount / fileLength) + "%");});}inputStream.close();outputStream.close();((Activity) mContext).runOnUiThread(() -> {//下载完成,自动安装mDialog.dismiss();((Activity) mContext).finish();installApk(new File(Environment.getExternalStorageDirectory() + "/" + "demo.apk"));});} catch (Exception e) {e.printStackTrace();}}/*** 安装apk文件** @param apkFile 安装包所在目录*/private void installApk(File apkFile) {//判断版本是否在7.0以上if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {Uri apkUri = FileProvider.getUriForFile(mContext,"com.carson.fileprovider", apkFile);Intent install = new Intent(Intent.ACTION_VIEW);install.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//对目标应用临时授权该Uri所代表的文件install.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);install.setDataAndType(apkUri, "application/vnd.android.package-archive");mContext.startActivity(install);} else {Intent install = new Intent(Intent.ACTION_VIEW);install.setDataAndType(Uri.fromFile(apkFile), "application/vnd.android.package-archive");install.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);mContext.startActivity(install);}}
}
需要在manifest中添加处理<providerandroid:name="android.support.v4.content.FileProvider"android:authorities="com.carson.fileprovider"android:exported="false"android:grantUriPermissions="true"><meta-dataandroid:name="android.support.FILE_PROVIDER_PATHS"android:resource="@xml/file_paths" /></provider>xml下的file_paths
<?xml version="1.0" encoding="utf-8"?>
贴上dialog
<?xml version="1.0" encoding="utf-8"?>
<TextViewandroid:id="@+id/tv_title"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_marginTop="56dp"android:text="发现新版本"android:textColor="@color/color_white"android:textSize="16sp" /><TextViewandroid:id="@+id/tv_version"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_below="@id/tv_title"android:layout_marginTop="8dp"android:background="@drawable/bg_tv_version"android:paddingStart="12dp"android:paddingTop="4dp"android:paddingEnd="12dp"android:paddingBottom="4dp"android:text="v1.4"android:textColor="@color/color_white"android:textSize="12sp" /><LinearLayoutandroid:layout_width="match_parent"android:layout_height="wrap_content"android:layout_alignParentBottom="true"android:orientation="vertical"><android.support.v4.widget.NestedScrollViewandroid:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="1"><TextViewandroid:id="@+id/tv_des"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_marginTop="15dp"android:lineSpacingMultiplier="1.5"android:text="111"android:textColor="@color/color_black"android:textSize="12sp" /></android.support.v4.widget.NestedScrollView><RelativeLayoutandroid:layout_width="88dp"android:layout_height="32dp"android:layout_gravity="center"android:layout_marginTop="15dp"android:layout_marginBottom="20dp"><TextViewandroid:id="@+id/tv_update"android:layout_width="match_parent"android:layout_height="match_parent"android:background="@drawable/bg_update_version"android:gravity="center"android:text="立即更新"android:textColor="@color/color_white"android:textSize="12sp" /><ProgressBarandroid:id="@+id/progress_bar"android:layout_width="match_parent"android:layout_height="match_parent"android:indeterminateOnly="false"android:mirrorForRtl="true"android:progressDrawable="@drawable/progress_drawable"android:visibility="gone" /><TextViewandroid:id="@+id/tv_progress"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_centerInParent="true"android:text="0%"android:textColor="@color/color_white"android:textSize="12sp"android:visibility="gone" /></RelativeLayout>
</LinearLayout>
styles
到此,功能全部实现
实现效果图
最后贴上版本的比较,在后端进行比较后前端最好也进行一次比较,防止错误的出现,进行容错处理
/*** 如果版本1 大于 版本2 返回true 否则返回fasle 支持 2.2 2.2.1 比较* 支持不同位数的比较 2.0.0.0.0.1 2.0 对比** @param newVersion 版本服务器版本 " 1.1.2 "* @param nowVersion 版本 当前版本 " 1.2.1 "* @return ture :需要更新 false : 不需要更新*/
public static boolean compareVersions(String newVersion, String nowVersion) {//判断是否为空数据if (TextUtils.equals(newVersion, "") || TextUtils.equals(nowVersion, "")) {return false;}String[] str1 = newVersion.split("\\.");String[] str2 = nowVersion.split("\\.");if (str1.length == str2.length) {for (int i = 0; i < str1.length; i++) {if (Integer.parseInt(str1[i]) > Integer.parseInt(str2[i])) {return true;} else if (Integer.parseInt(str1[i]) < Integer.parseInt(str2[i])) {return false;} else if (Integer.parseInt(str1[i]) == Integer.parseInt(str2[i])) {}}} else {if (str1.length > str2.length) {for (int i = 0; i < str2.length; i++) {if (Integer.parseInt(str1[i]) > Integer.parseInt(str2[i])) {return true;} else if (Integer.parseInt(str1[i]) < Integer.parseInt(str2[i])) {return false;} else if (Integer.parseInt(str1[i]) == Integer.parseInt(str2[i])) {if (str2.length == 1) {continue;}if (i == str2.length - 1) {for (int j = i; j < str1.length; j++) {if (Integer.parseInt(str1[j]) != 0) {return true;}if (j == str1.length - 1) {return false;}}return true;}}}} else {for (int i = 0; i < str1.length; i++) {if (Integer.parseInt(str1[i]) > Integer.parseInt(str2[i])) {return true;} else if (Integer.parseInt(str1[i]) < Integer.parseInt(str2[i])) {return false;} else if (Integer.parseInt(str1[i]) == Integer.parseInt(str2[i])) {if (str1.length == 1) {continue;}if (i == str1.length - 1) {return false;}}}}}return false;
}