可以看到对application/vnd.android.package-archive这个mime的处理，还有android.intent.action.INSTALL_PACKAGE这个action的处理。
在文件管理器中点击apk文件，或者发送以上intent-filter中对应的action，就会调用PackageInstaller。
1.只安装指定前缀包名的应用
我们可以在initiateInstall()这个函数中，通过包名对将要安装的应用进行管控，参考代码如下：
private void initiateInstall() {
String pkgName = mPkgInfo.packageName;
Log.v(“AZ”,"[initiateInstall]pkgName:" + pkgName);
if(pkgName.startsWith(“com.zms”)){
// Check if there is already a package on the device with this name
// but it has been renamed to something else.
String[] oldName = mPm.canonicalToCurrentPackageNames(new String[] { pkgName });
if (oldName != null && oldName.length > 0 && oldName[0] != null) {
pkgName = oldName[0];
mPkgInfo.packageName = pkgName;
mPkgInfo.applicationInfo.packageName = pkgName;
}
// Check if package is already installed. display confirmation dialog if replacing pkg
try {
// This is a little convoluted because we want to get all uninstalled
// apps, but this may include apps with just data, and if it is just
// data we still want to count it as “installed”.
mAppInfo = mPm.getApplicationInfo(pkgName,
PackageManager.GET_UNINSTALLED_PACKAGES);
if ((mAppInfo.flags&ApplicationInfo.FLAG_INSTALLED) == 0) {
mAppInfo = null;
}
} catch (NameNotFoundException e) {
mAppInfo = null;
}
mInstallFlowAnalytics.setReplace(mAppInfo != null);
mInstallFlowAnalytics.setSystemApp(
(mAppInfo != null) && ((mAppInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0));
startInstallConfirm();
}else{
finish();
}
}
以上代码的效果就是，只安装包名以“com.zms”开头的应用。其他的不会出现安装界面，直接finish()。
2.PackageInstaller安装完某个应用，自动打开：
packages/apps/PackageInstaller/src/com/android/packageinstaller/InstallAppProgress.java
private Handler mHandler = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case INSTALL_COMPLETE:
mInstallFlowAnalytics.setFlowFinishedWithPackageManagerResult(msg.arg1);
if (getIntent().getBooleanExtra(Intent.EXTRA_RETURN_RESULT, false)) {
Intent result = new Intent();
result.putExtra(Intent.EXTRA_INSTALL_RESULT, msg.arg1);
setResult(msg.arg1 == PackageManager.INSTALL_SUCCEEDED
? Activity.RESULT_OK : Activity.RESULT_FIRST_USER,
result);
finish();
return;
}
// Update the status text
mProgressBar.setVisibility(View.INVISIBLE);
// Show the ok button
int centerTextLabel;
int centerExplanationLabel = -1;
LevelListDrawable centerTextDrawable = (LevelListDrawable) getResources()
.getDrawable(R.drawable.ic_result_status);
if (msg.arg1 == PackageManager.INSTALL_SUCCEEDED) {
mLaunchButton.setVisibility(View.VISIBLE);
centerTextDrawable.setLevel(0);
centerTextLabel = R.string.install_done;
// Enable or disable launch button
mLaunchIntent = getPackageManager().getLaunchIntentForPackage(
mAppInfo.packageName);
boolean enabled = false;
if(mLaunchIntent != null) {
List list = getPackageManager().
queryIntentActivities(mLaunchIntent, 0);
if (list != null && list.size() > 0) {
enabled = true;
}
if (enabled) {
// ZMS:Add for opening app automatically START
if(mAppInfo.packageName.equals(“com.zms.demo”)){
startActivity(mLaunchIntent);
}
// ZMS:END
mLaunchButton.setonClickListener(InstallAppProgress.this);
} else {
mLaunchButton.setEnabled(false);
}
} else if (msg.arg1 == PackageManager.INSTALL_FAILED_INSUFFICIENT_STORAGE){
/// M: [ALPS00269830][ICS-TDD][Symbio
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【docs.qq.com/doc/DSkNLaERkbnFoS0ZF】 完整内容开源分享
][Free test] Assertion while playing music when downloading apks @{
