安装之前判断是否有root权限，如果有root权限就静默安转，如果没有就利用意图进行安装。源码参考地址

/**

*

* @author Javen

* @since 2016/05/24

*/

public class ApkController {

/**

* 描述: 安装

*/

public static boolean install(String apkPath,Context context){

// 先判断手机是否有root权限

if(hasRootPerssion()){

// 有root权限，利用静默安装实现

return clientInstall(apkPath);

}else{

// 没有root权限，利用意图进行安装

File file = new File(apkPath);

if(!file.exists())

return false;

Intent intent = new Intent();

intent.setAction("android.intent.action.VIEW");

intent.addCategory("android.intent.category.DEFAULT");

intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

intent.setDataAndType(Uri.fromFile(file),"application/vnd.android.package-archive");

context.startActivity(intent);

return true;

}

}

/**

* 描述: 卸载

*/

public static boolean uninstall(String packageName,Context context){

if(hasRootPerssion()){

// 有root权限，利用静默卸载实现

return clientUninstall(packageName);

}else{

Uri packageURI = Uri.parse("package:" + packageName);

Intent uninstallIntent = new Intent(Intent.ACTION_DELETE,packageURI);

uninstallIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

context.startActivity(uninstallIntent);

return true;

}

}

/**

* 判断手机是否有root权限

*/

private static boolean hasRootPerssion(){

PrintWriter PrintWriter = null;

Process process = null;

try {

process = Runtime.getRuntime().exec("su");

PrintWriter = new PrintWriter(process.getOutputStream());

PrintWriter.flush();

PrintWriter.close();

int value = process.waitFor();

return returnResult(value);

} catch (Exception e) {

e.printStackTrace();

}finally{

if(process!=null){

process.destroy();

}

}

return false;

}

/**

* 静默安装

*/

private static boolean clientInstall(String apkPath){

PrintWriter PrintWriter = null;

Process process = null;

try {

process = Runtime.getRuntime().exec("su");

PrintWriter = new PrintWriter(process.getOutputStream());

PrintWriter.println("chmod 777 "+apkPath);

PrintWriter.println("export LD_LIBRARY_PATH=/vendor/lib:/system/lib");

PrintWriter.println("pm install -r "+apkPath);

// PrintWriter.println("exit");

PrintWriter.flush();

PrintWriter.close();

int value = process.waitFor();

return returnResult(value);

} catch (Exception e) {

e.printStackTrace();

}finally{

if(process!=null){

process.destroy();

}

}

return false;

}

/**

* 静默卸载

*/

private static boolean clientUninstall(String packageName){

PrintWriter PrintWriter = null;

Process process = null;

try {

process = Runtime.getRuntime().exec("su");

PrintWriter = new PrintWriter(process.getOutputStream());

PrintWriter.println("LD_LIBRARY_PATH=/vendor/lib:/system/lib ");

PrintWriter.println("pm uninstall "+packageName);

PrintWriter.flush();

PrintWriter.close();

int value = process.waitFor();

return returnResult(value);

} catch (Exception e) {

e.printStackTrace();

}finally{

if(process!=null){

process.destroy();

}

}

return false;

}

/**

* 启动app

* com.exmaple.client/.MainActivity

* com.exmaple.client/com.exmaple.client.MainActivity

*/

public static boolean startApp(String packageName,String activityName){

boolean isSuccess = false;

String cmd = "am start -n " + packageName + "/" + activityName + " \n";

Process process = null;

try {

process = Runtime.getRuntime().exec(cmd);

int value = process.waitFor();

return returnResult(value);

} catch (Exception e) {

e.printStackTrace();

} finally{

if(process!=null){

process.destroy();

}

}

return isSuccess;

}

private static boolean returnResult(int value){

// 代表成功

if (value == 0) {

return true;

} else if (value == 1) { // 失败

return false;

} else { // 未知情况

return false;

}

}

/**

* 查询所有非系统app的信息

* @param mContext

* @return

*/

public static List> getAPPInstalled(Context mContext) {

List> listItems = new ArrayList>();

// 获取系统内的所有程序信息

Intent mainintent = new Intent(Intent.ACTION_MAIN, null);

mainintent.addCategory(Intent.CATEGORY_LAUNCHER);

List packageinfo = mContext.getPackageManager()

.getInstalledPackages(0);

int count = packageinfo.size();

for (int i = 0; i < count; i++) {

PackageInfo pinfo = packageinfo.get(i);

ApplicationInfo appInfo = pinfo.applicationInfo;

if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) > 0) {

// 系统程序 忽略

} else {

// 非系统程序

Map map = new HashMap();

map.put("app_logo", pinfo.applicationInfo.loadIcon(mContext

.getPackageManager()));

map.put("app_name", pinfo.applicationInfo.loadLabel(mContext

.getPackageManager()));

map.put("package_name", pinfo.applicationInfo.packageName);

map.put("app_version_name", pinfo.versionName);

map.put("app_version_code", pinfo.versionCode);

listItems.add(map);

}

}

return listItems;

}

/**

* 判断应用是否需要安装

* @param mContext

* @param packageName

* @param versionCode

* @return

*/

public static boolean isInstalled(Context mContext,String packageName,int versionCode) {

// 获取系统内的所有程序信息

Intent mainintent = new Intent(Intent.ACTION_MAIN, null);

mainintent.addCategory(Intent.CATEGORY_LAUNCHER);

List packageinfo = mContext.getPackageManager()

.getInstalledPackages(0);

int count = packageinfo.size();

String pn;

int vc;

for (int i = 0; i < count; i++) {

PackageInfo pinfo = packageinfo.get(i);

ApplicationInfo appInfo = pinfo.applicationInfo;

if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) > 0) {

// 系统程序 忽略

} else {

// 非系统程序

pn=pinfo.applicationInfo.packageName;

vc=pinfo.versionCode;

if (pn.equalsIgnoreCase(packageName) && vc >= versionCode) {

return true;

}

}

}

return false;

}

}

获取手机安装的非系统应用

public class App {

public static List> getAPPInstalled(Context mContext) {

List> listItems = new ArrayList>();

//查询所有非系统app的信息

Intent mainintent = new Intent(Intent.ACTION_MAIN, null);

mainintent.addCategory(Intent.CATEGORY_LAUNCHER);

List packageinfo = mContext.getPackageManager()

.getInstalledPackages(0);

int count = packageinfo.size();

for (int i = 0; i < count; i++) {

PackageInfo pinfo = packageinfo.get(i);

ApplicationInfo appInfo = pinfo.applicationInfo;

if ((appInfo.flags & ApplicationInfo.FLAG_SYSTEM) > 0) {

// 系统程序 忽略

} else {

// 非系统程序

Map map = new HashMap();

map.put("app_logo", pinfo.applicationInfo.loadIcon(mContext

.getPackageManager()));

map.put("app_name", pinfo.applicationInfo.loadLabel(mContext

.getPackageManager()));

map.put("package_name", pinfo.applicationInfo.packageName);

map.put("app_version_name", pinfo.versionName);

map.put("app_version_code", pinfo.versionCode);

listItems.add(map);

}

}

return listItems;

}

}