1.直接通过URL下载安装APP:
示例:
零、准备工作
0.1第三方库
implementation ‘io.reactivex.rxjava2:rxjava:2.2.2’
implementation ‘io.reactivex.rxjava2:rxandroid:2.1.0’
implementation ‘io.reactivex.rxjava2:rxkotlin:2.3.0’
implementation ‘com.squareup.okhttp3:okhttp:3.11.0’
implementation ‘com.squareup.okio:okio:2.0.0’
0.2权限:
0.3格式 Code: 0, Msg: , UpdateStatus: 1, VersionCode: 3, VersionName: 1.0.2, ModifyContent: 1、优化API接口。\r\n2、添加使用演示示例。\r\n3、新增自定义更新服务API接口。\r\n4、优化更新提示界面。, DownloadUrl: https://raw.githubusercontent.com/xuexiangjys/XUpdate/master/apk/xupdate_demo_1.0.2.apk, ApkSize: 2048 “ApkMd5”: “…” //如果没有MD5值,无法保证APK是否完整,每次都会重新下载。
一、检测是否为最新版本,如果不是,则进行更新。 private Disposable downDisposable; private ProgressBar progressBar; private TextView textView4; private Button upgrade; private long downloadLength = 0; private long contentLength = 0; // 存储权限 private String[] PERMISSIONS_STORAGE = { Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE };
判断当前版本是否为最新版本,如果不是,则进行更新。
private void test(){ Observable.create(new ObservableOnSubscribe() { @Override public void subscribe(ObservableEmitter emitter) throws Exception { OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder() .url(url) .build();
client.newCall(request).enqueue(new okhttp3.Callback() { @Override public void onFailure(Call call, IOException e) { emitter.onError(e); } }
@Override
public void onResponse(Call call, Response response) throws IOException {
String result="";
if (response.body()!=null) {
result=response.body().string();
}else {
//返回数据错误
return;
}
emitter.onNext(result);
}
});
// emitter.onNext("123");
}
}).subscribeOn(Schedulers.io())// 将被观察者切换到子线程
.observeOn(AndroidSchedulers.mainThread())// 将观察者切换到主线程
.subscribe(new Observer<String>() {
private Disposable mDisposable;
@Override
public void onSubscribe(Disposable d) {
mDisposable = d;
}
@Override
public void onNext(String result) {
if (result.isEmpty()){
return;
}
//2.判断版本是否最新,如果不是最新版本则更新
String downloadUrl="https://raw.githubusercontent.com/xuexiangjys/XUpdate/master/apk/xupdate_demo_1.0.2.apk";
String ;
String size="新版本大小:未知";
String msg="1、优化api接口。\r\n2、添加使用demo演示。\r\n3、新增自定义更新服务API接口。\r\n4、优化更新提示界面。";
int versionCode=20000;
try {
int version = getPackageManager().
getPackageInfo(getPackageName(), 0).versionCode;
if (versionCode>version){
LayoutInflater inflater = LayoutInflater.from(TestActivity.this);
View view = inflater.inflate(R.layout.layout_dialog, null);
AlertDialog.Builder mDialog = new AlertDialog.Builder(TestActivity.this,R.style.Translucent_NoTitle);
mDialog.setView(view);
mDialog.setCancelable(true);
mDialog.setOnKeyListener(new DialogInterface.OnKeyListener() {
@Override
public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
return keyCode == KeyEvent.KEYCODE_BACK;
}
});
upgrade= view.findViewById(R.id.button);
TextView textView1= view.findViewById(R.id.textView1);
TextView textView2= view.findViewById(R.id.textView2);
TextView textView3= view.findViewById(R.id.textView3);
textView4= view.findViewById(R.id.textView4);
ImageView iv_close= view.findViewById(R.id.iv_close);
progressBar= view.findViewById(R.id.progressBar);
progressBar.setMax(100);
textView1.setText(title);
textView2.setText(size);
textView3.setText(msg);
upgrade.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//动态询问是否授权
int permission = ActivityCompat.checkSelfPermission(getApplication(),
Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (permission != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(TestActivity.this, PERMISSIONS_STORAGE,
1);
}else {
upgrade.setVisibility(View.INVISIBLE);
down(downloadUrl);
}
}
});
iv_close.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
mDialog.show();
}else {
try { throw new PackageManager.NameNotFoundException(); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } mDisposable.dispose();
}) { }); }
下载apk并更新进度条。
private void down(String downloadUrl) { Observable.create(new ObservableOnSubscribe() { @Override public void subscribe(ObservableEmitter emitter) throws Exception { // Your code here } }); }
@Override
public void onSubscribe(Disposable d) {
downDisposable = d;
}
@Override
public void onNext(Integer result) {
//设置ProgressDialog 进度条进度
progressBar.setProgress(result);
textView4.setText(result+"%");
}
@Override
public void onError(Throwable e) {
Toast.makeText(getApplication(),"网络异常!请重新下载!",Toast.LENGTH_SHORT).show();
upgrade.setEnabled(true);
}
@Override
public void onComplete() {
Toast.makeText(getApplication(),"服务器异常!请重新下载!",Toast.LENGTH_SHORT).show();
upgrade.setEnabled(true);
}) {
});
}
二、下载apk
//下载apk
private void downApk(String downloadUrl, ObservableEmitter emitter) { OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder() .url(downloadUrl) .build(); }
@Override public void onResponse(Call call, Response response) throws IOException { if (response.body() == null) { // 下载失败 breakpoint(downloadUrl, emitter); return; } InputStream is = null; FileOutputStream fos = null; byte[] buff = new byte[2048]; int len; try { is = response.body().byteStream(); File file = createFile(); fos = new FileOutputStream(file); long total = response.body().contentLength(); contentLength=total; long sum = 0; while ((len=is.read(buff)) != -1) { fos.write(buff, 0, len); }
}
//断点续传
private void breakpoint(String downloadUrl,ObservableEmitter<Integer> emitter){
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
.url(downloadUrl)
.addHeader("RANGE", "bytes=" + downloadLength + "-" + contentLength)
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
//下载失败
breakpoint(downloadUrl,emitter);
}
@Override public void onResponse(Call call, Response response) throws IOException { if (response.body() == null) { // 下载失败 breakpoint(downloadUrl, emitter); return; } InputStream is = null; RandomAccessFile randomFile = null; byte[] buff = new byte[2048]; int len; try { is = response.body().byteStream(); String root = Environment.getExternalStorageDirectory().getPath(); File file = new File(root, updateDemo.apk); randomFile = new RandomAccessFile(file, rwd); randomFile.seek(downloadLength); long total = contentLength; long sum = downloadLength; while ((len=is.read(buff)) != -1) { sum += len; randomFile.write(buff, 0, len); int progress=(int)(sum*1.0f/total*100);//下载进度 emitter.onNext(progress);//发送进度条数据给观察者,即MainActivity中的onNext方法接收到此数据后更新UI。 } emitter.onComplete();//完成下载 } catch (Exception e) { e.printStackTrace(); emitter.onError(e); } finally { try { if(is!=null) is.close(); if(randomAccessFile!=null) randomAccessFile.close(); } catch (IOException e) { e.printStackTrace(); } } }
/**
路径为根目录,创建文件名称为updateDemo.apk。 ```java private File createFile() { String root = Environment.getExternalStorageDirectory().getPath(); File file = new File(root, updateDemo.apk); if (file.exists()) { file.delete(); } try { file.createNewFile(); return file; } catch (IOException e) { e.printStackTrace(); } return null; } ```
三、安装apk 3.1 在项目的src/res目录下新建一个xml文件夹,并自定义一个file_paths文件。 3.2 在清单文件中进行配置。
public void installApk(Context context, File file) { if (context == null) { return; } String authority = getApplicationContext().getPackageName() + .fileProvider; Uri apkUri = FileProvider.getUriForFile(context, authority, file); Intent intent = new Intent(Intent.ACTION_VIEW); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setDataAndType(apkUri, application/vnd.android.package-archive); context.startActivity(intent); }
``` context.startActivity(intent); //关闭原程序,以便在安装完成后点击打开时能够正常响应 Process.killProcess(android.os.Process.myPid()); } ``` 改写为: ```java context.startActivity(intent); //关闭原程序,确保在安装完成后点击打开时能够立即响应 Process.killProcess(android.os.Process.myPid()); } ```
四、取消订阅 @Override protected void onDestroy() { super.onDestroy(); downDisposable.dispose(); // 取消订阅 }
五、自定义对话框 5.1 用户界面 查看第一步,检测是否为最新版本,如果不是,则进行更新。
5.2布局 1
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