Android9.0静默安装(需要系统签名)

package xxxx.xxx.xxx.xxx;

import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.PendingIntent;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageInstaller;
import android.content.pm.PackageInstaller.Session;
import android.content.pm.PackageInstaller.SessionParams;
import android.util.Log;

import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

@TargetApi(27)
public class NewPackageInstaller implements NewPackageManager.IPackageInstall {
    private Context mContext;
    private String mAction;

    public NewPackageInstaller(Context context) {
        this(context, "com.snack.content.INSTALL");
    }

    public NewPackageInstaller(Context context, String action) {
        this.mContext = context;
        this.mAction = action;
    }

    private int createSession(PackageInstaller packageInstaller, SessionParams sessionParams) {
        int sessionId = -1;

        try {
            sessionId = packageInstaller.createSession(sessionParams);
        } catch (Exception var5) {
            var5.printStackTrace();
        }

        return sessionId;
    }

    private boolean copyInstallFile(PackageInstaller packageInstaller, int sessionId, String appPath) {
        InputStream inputStream = null;
        OutputStream outputStream = null;
        Session session = null;
        boolean isSuccess = false;
        File appFile = new File(appPath);

        try {
            inputStream = new FileInputStream(appFile);
            session = packageInstaller.openSession(sessionId);
            outputStream = session.openWrite("my_app_session", 0L, appFile.length());
            int total = 0;

            int len;
            for (byte[] buffer = new byte[4096]; (len = inputStream.read(buffer)) != -1; total += len) {
                outputStream.write(buffer, 0, len);
            }

            session.fsync(outputStream);
            boolean var12 = true;
            return var12;
        } catch (IOException var16) {
            var16.printStackTrace();
        } finally {
            this.close(outputStream);
            this.close(inputStream);
            this.close(session);
        }

        return false;
    }

    @SuppressLint("WrongConstant")
    private boolean installPackage(PackageInstaller packageInstaller, int sessionId, NewPackageManager.IInstallObserver observer) {
        PendingIntent pendingIntent = null;
        Session session = null;

        try {
            session = packageInstaller.openSession(sessionId);
            IntentFilter ifliter = new IntentFilter();
            ifliter.addAction(this.mAction);
            NewPackageInstaller.InstallReceiver installReceiver = new NewPackageInstaller.InstallReceiver(observer);
            this.mContext.registerReceiver(installReceiver, ifliter);
            Intent intent = new Intent(this.mAction);
            pendingIntent = PendingIntent.getBroadcast(this.mContext, sessionId, intent, 134217728);
            session.commit(pendingIntent.getIntentSender());
            boolean var9 = true;
            return var9;
        } catch (IOException var13) {
            var13.printStackTrace();
        } finally {
            this.close(session);
        }

        return false;
    }

    private void close(Closeable closeable) {
        if (closeable != null) {
            try {
                closeable.close();
            } catch (IOException var3) {
                var3.printStackTrace();
            }
        }

    }

    public boolean installPackage(String appPath, NewPackageManager.IInstallObserver observer) {
        File appFile = new File(appPath);
        if (appFile.exists() && appFile.isFile() && appFile.canRead()) {
            PackageInstaller packageInstaller = this.mContext.getPackageManager().getPackageInstaller();
            SessionParams sessionParams = new SessionParams(1);
            sessionParams.setSize(appFile.length());
            int sessionId = this.createSession(packageInstaller, sessionParams);
            if (sessionId != -1) {
                boolean isCopySuccess = this.copyInstallFile(packageInstaller, sessionId, appPath);
                if (isCopySuccess) {
                    return this.installPackage(packageInstaller, sessionId, observer);
                }
            }

            return false;
        } else {
            return false;
        }
    }

    class InstallReceiver extends BroadcastReceiver {
        private NewPackageManager.IInstallObserver mInstallObserver;

        public InstallReceiver(NewPackageManager.IInstallObserver observer) {
            this.mInstallObserver = observer;
        }

        public void onReceive(Context context, Intent intent) {
            Log.d("install", "receiver :" + intent.getAction() + ",intent.toString:" + intent.toString());
            String pkgName = intent.getStringExtra("android.content.pm.extra.PACKAGE_NAME");
            String result = intent.getStringExtra("android.content.pm.extra.STATUS_MESSAGE");
            int resultCode = intent.getIntExtra("android.content.pm.extra.LEGACY_STATUS", 0);
            if (this.mInstallObserver != null) {
                this.mInstallObserver.onPackageInstalled(pkgName, resultCode, result);
            }

            context.unregisterReceiver(this);
        }
    }
}
package xxx.xxx.xxx;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.util.Log;

import java.util.Iterator;
import java.util.List;


public class NewPackageManager {

    private Context mContext;
    private PackageManager mPackageManager;
    private NewPackageManager.IAppObserver mDefaultAppObserver;
    private NewPackageManager.IPackageInstall mPackageInstaller;

    public NewPackageManager(Context context) {
        this.mContext = context.getApplicationContext();
        this.mPackageManager = context.getPackageManager();
        this.mDefaultAppObserver = new NewPackageManager.DefaultAppObserver();
        if (android.os.Build.VERSION.SDK_INT > 27) {
            this.mPackageInstaller = new NewPackageInstaller(this.mContext);
        }

    }

    public boolean installPackage(String appFilePath, NewPackageManager.IInstallObserver installObserver) {
        return this.mPackageInstaller.installPackage(appFilePath, installObserver);
    }


    public static boolean isAvailable(PackageManager packageManager, String packageName) {
        List<PackageInfo> infos = packageManager.getInstalledPackages(0);
        Iterator infoIterator = infos.iterator();

        PackageInfo info;
        do {
            if (!infoIterator.hasNext()) {
                return false;
            }

            info = (PackageInfo) infoIterator.next();
        } while (!info.packageName.equals(packageName));

        return true;
    }


    public interface IPackageInstall {
        boolean installPackage(String var1, NewPackageManager.IInstallObserver var2);
    }

    public interface IDeleteObserver {
        void onPackageDeleted(String var1, int var2, String var3);
    }

    public interface IInstallObserver {
        void onPackageInstalled(String var1, int var2, String var3);
    }

    public interface IAppObserver extends NewPackageManager.IInstallObserver, NewPackageManager.IDeleteObserver {
    }

    public static class DefaultAppObserver implements NewPackageManager.IAppObserver {
        public static final String INSTALL_TAG = "install";
        public static final String DELETE_TAG = "delete";

        public DefaultAppObserver() {
        }

        public void onPackageInstalled(String packageName, int returnCode, String msg) {
            if (returnCode == 1) {
                Log.d("install", "App install success: " + packageName);
            } else {
                Log.d("install", "Apk install fail! package:" + packageName + ".   Error code:" + returnCode + "," + msg);
            }

        }

        public void onPackageDeleted(String packageName, int returnCode, String msg) {
            if (returnCode == 1) {
                Log.d("delete", "App delete success:" + packageName);
            } else {
                Log.d("install", "Apk delete fail! package:" + packageName + ".   Error code:" + returnCode + "," + msg);
            }

        }
    }


}
/**
     * Android9.0静默安装
     */
    /**
     * install app
     * the permission {#android.permission.INSTALL_PACKAGES} is only granted to
     * system apps
     * <p>
     * add #android:sharedUserId="android.uid.system"# to manifest
     *
     * @param appFilePath
     */
    public static boolean installPackage(Context context, String appFilePath) {
        NewPackageManager mPackageManager = new NewPackageManager(context);

        /**
         *@param appPath 需要安装的APP的绝对路径
         */
        boolean ret = mPackageManager.installPackage(appFilePath, new NewPackageManager.IInstallObserver() {
            /**
             *@param packageName 安装APP的包名
             *@param returnCode 0为安装成功，其余值为安装失败
             *@param errorMsg 失败的错误信息
             */
            @Override
            public void onPackageInstalled(String packageName, int returnCode, String errorMsg) {
                Log.i("install", "packageName：" + packageName + ",returnCode："
                        + returnCode + ",errorMsg：" + errorMsg);
            }
        });
        LogUtil.i("install", "installPackage ret = 0为安装成功 ret " + ret);
        return ret;
    }

package xxxx.xxx.xxx.xxx;
import android.annotation.SuppressLint;import android.annotation.TargetApi;import android.app.PendingIntent;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.content.pm.PackageInstaller;import android.content.pm.PackageInstaller.Session;import android.content.pm.PackageInstaller.SessionParams;import android.util.Log;
import java.io.Closeable;import java.io.File;import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;
@TargetApi(27)public class NewPackageInstaller implements NewPackageManager.IPackageInstall {    private Context mContext;    private String mAction;
    public NewPackageInstaller(Context context) {        this(context, "com.snack.content.INSTALL");    }
    public NewPackageInstaller(Context context, String action) {        this.mContext = context;        this.mAction = action;    }
    private int createSession(PackageInstaller packageInstaller, SessionParams sessionParams) {        int sessionId = -1;
        try {            sessionId = packageInstaller.createSession(sessionParams);        } catch (Exception var5) {            var5.printStackTrace();        }
        return sessionId;    }
    private boolean copyInstallFile(PackageInstaller packageInstaller, int sessionId, String appPath) {        InputStream inputStream = null;        OutputStream outputStream = null;        Session session = null;        boolean isSuccess = false;        File appFile = new File(appPath);
        try {            inputStream = new FileInputStream(appFile);            session = packageInstaller.openSession(sessionId);            outputStream = session.openWrite("my_app_session", 0L, appFile.length());            int total = 0;
            int len;            for (byte[] buffer = new byte[4096]; (len = inputStream.read(buffer)) != -1; total += len) {                outputStream.write(buffer, 0, len);            }
            session.fsync(outputStream);            boolean var12 = true;            return var12;        } catch (IOException var16) {            var16.printStackTrace();        } finally {            this.close(outputStream);            this.close(inputStream);            this.close(session);        }
        return false;    }
    @SuppressLint("WrongConstant")    private boolean installPackage(PackageInstaller packageInstaller, int sessionId, NewPackageManager.IInstallObserver observer) {        PendingIntent pendingIntent = null;        Session session = null;
        try {            session = packageInstaller.openSession(sessionId);            IntentFilter ifliter = new IntentFilter();            ifliter.addAction(this.mAction);            NewPackageInstaller.InstallReceiver installReceiver = new NewPackageInstaller.InstallReceiver(observer);            this.mContext.registerReceiver(installReceiver, ifliter);            Intent intent = new Intent(this.mAction);            pendingIntent = PendingIntent.getBroadcast(this.mContext, sessionId, intent, 134217728);            session.commit(pendingIntent.getIntentSender());            boolean var9 = true;            return var9;        } catch (IOException var13) {            var13.printStackTrace();        } finally {            this.close(session);        }
        return false;    }
    private void close(Closeable closeable) {        if (closeable != null) {            try {                closeable.close();            } catch (IOException var3) {                var3.printStackTrace();            }        }
    }
    public boolean installPackage(String appPath, NewPackageManager.IInstallObserver observer) {        File appFile = new File(appPath);        if (appFile.exists() && appFile.isFile() && appFile.canRead()) {            PackageInstaller packageInstaller = this.mContext.getPackageManager().getPackageInstaller();            SessionParams sessionParams = new SessionParams(1);            sessionParams.setSize(appFile.length());            int sessionId = this.createSession(packageInstaller, sessionParams);            if (sessionId != -1) {                boolean isCopySuccess = this.copyInstallFile(packageInstaller, sessionId, appPath);                if (isCopySuccess) {                    return this.installPackage(packageInstaller, sessionId, observer);                }            }
            return false;        } else {            return false;        }    }
    class InstallReceiver extends BroadcastReceiver {        private NewPackageManager.IInstallObserver mInstallObserver;
        public InstallReceiver(NewPackageManager.IInstallObserver observer) {            this.mInstallObserver = observer;        }
        public void onReceive(Context context, Intent intent) {            Log.d("install", "receiver :" + intent.getAction() + ",intent.toString:" + intent.toString());            String pkgName = intent.getStringExtra("android.content.pm.extra.PACKAGE_NAME");            String result = intent.getStringExtra("android.content.pm.extra.STATUS_MESSAGE");            int resultCode = intent.getIntExtra("android.content.pm.extra.LEGACY_STATUS", 0);            if (this.mInstallObserver != null) {                this.mInstallObserver.onPackageInstalled(pkgName, resultCode, result);            }
            context.unregisterReceiver(this);        }    }}

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原文地址：https://www.cnblogs.com/mengdao/p/15766237.html