Settings application details page
$ adb shell dumpsys activity | grep "mResumedActivity" --color=auto
mResumedActivity: ActivityRecord{32c5bd u0 com.android.settings/.applications.InstalledAppDetails t28}
code
Main actions:
@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
public static final String ACTION_APPLICATION_DETAILS_SETTINGS = "android.settings.APPLICATION_DETAILS_SETTINGS";
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
if (Build.VERSION.SDK_INT >= 9) {
intent.setAction("android.settings.APPLICATION_DETAILS_SETTINGS");
intent.setData(Uri.fromParts("package", "指定应用包名, null));
} else if (Build.VERSION.SDK_INT <= 8) {
intent.setAction(Intent.ACTION_VIEW);
intent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");
intent.putExtra("com.android.settings.ApplicationPkgName", "指定应用的包名");
}
startActivity(intent);Configuration file
<!-- Still need a top-level activity for showing app details. Aliasing
trick is so the code that is now a fragment can still be called
InstalledAppDetails. -->
<activity android:name=".applications.InstalledAppDetailsTop"
android:label="@string/application_info_label"
android:exported="true" />
<!-- Keep compatibility with old shortcuts. -->
<activity-alias android:name=".applications.InstalledAppDetails"
android:label="@string/application_info_label"
android:exported="true"
android:targetActivity=".applications.InstalledAppDetailsTop">
<intent-filter android:priority="1">
<action android:name="android.settings.APPLICATION_DETAILS_SETTINGS" />
<action android:name="android.intent.action.AUTO_REVOKE_PERMISSIONS" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="package" />
</intent-filter>
</activity-alias>Common application installation logic
packageUtils.installApp = function (path) {
if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED)) {//sd 卡已挂载
var targetFile = new java.io.File(path);
if (targetFile.exists()) {
var intent = new android.content.Intent(android.content.Intent.ACTION_VIEW);
intent.addCategory(android.content.Intent.CATEGORY_DEFAULT);
intent.addFlags(android.content.Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION)
intent.addFlags(android.content.Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION)
intent.setDataAndType(getFileUri(context, targetFile), "application/vnd.android.package-archive");
context.startActivity(intent);
} else {
console.log("文件不存在");
}
}
}The main core is in application/vnd.android.package-archive. This is the identifier for opening the .apk file.
Intent.setData
There are two ways to set up here
public @NonNull Intent setData(@Nullable Uri data) {
mData = data;
mType = null;
return this;
}
public @NonNull Intent setDataAndType(@Nullable Uri data, @Nullable String type) {
mData = data;
mType = type;
return this;
}
As for data and Uri, you can refer to android.net.Uri parse(String uriString) | android.content.parseUriInternal(String uri, @UriFlags int flags)
Regarding this mType, we often see this kind of menu in android phones using xx to play, using xxx browser, sharing to xxx, etc.
{".3gp", "video/3gpp"},
{".apk", "application/vnd.android.package-archive"},
{".asf", "video/x-ms-asf"},
{".avi", "video/x-msvideo"},
{".bin", "application/octet-stream"},
{".bmp", "image/bmp"},
{".c", "text/plain"},
{".class", "application/octet-stream"},
{".conf", "text/plain"},
{".cpp", "text/plain"},
{".doc", "application/msword"},
{".exe", "application/octet-stream"},
{".gif", "image/gif"},
{".gtar", "application/x-gtar"},
{".gz", "application/x-gzip"},
{".h", "text/plain"},
{".htm", "text/html"},
{".html", "text/html"},
{".jar", "application/java-archive"},
{".java", "text/plain"},
{".jpeg", "image/jpeg"},
{".jpg", "image/jpeg"},
{".js", "application/x-javascript"},
{".log", "text/plain"},
{".m3u", "audio/x-mpegurl"},
{".m4a", "audio/mp4a-latm"},
{".m4b", "audio/mp4a-latm"},
{".m4p", "audio/mp4a-latm"},
{".m4u", "video/vnd.mpegurl"},
{".m4v", "video/x-m4v"},
{".mov", "video/quicktime"},
{".mp2", "audio/x-mpeg"},
{".mp3", "audio/x-mpeg"},
{".mp4", "video/mp4"},
{".mpc", "application/vnd.mpohun.certificate"},
{".mpe", "video/mpeg"},
{".mpeg", "video/mpeg"},
{".mpg", "video/mpeg"},
{".mpg4", "video/mp4"},
{".mpga", "audio/mpeg"},
{".msg", "application/vnd.ms-outlook"},
{".ogg", "audio/ogg"},
{".pdf", "application/pdf"},
{".png", "image/png"},
{".pps", "application/vnd.ms-powerpoint"},
{".ppt", "application/vnd.ms-powerpoint"},
{".prop", "text/plain"},
{".rar", "application/x-rar-compressed"},
{".rc", "text/plain"},
{".rmvb", "audio/x-pn-realaudio"},
{".rtf", "application/rtf"},
{".sh", "text/plain"},
{".tar", "application/x-tar"},
{".tgz", "application/x-compressed"},
{".txt", "text/plain"},
{".wav", "audio/x-wav"},
{".wma", "audio/x-ms-wma"},
{".wmv", "audio/x-ms-wmv"},
{".wps", "application/vnd.ms-works"},
{".xml", "text/xml"},
{".xml", "text/plain"},
{".z", "application/x-compress"},
{".zip", "application/zip"},
{"", "*/*"} It can be seen that when opening the .apk file application/vnd.android.package-archive, this value is the mimeType attribute assigned to the data android tag.
frameworks/base/packages/PackageInstaller/AndroidManifest.xml
It can be seen that the Activity registered here has the data attribute <data android:mimeType="application/vnd.android.package-archive" />
<activity android:name=".InstallStart"
android:theme="@android:style/Theme.Translucent.NoTitleBar"
android:exported="true"
android:excludeFromRecents="true">
<intent-filter android:priority="1">
<action android:name="android.intent.action.VIEW" />
<action android:name="android.intent.action.INSTALL_PACKAGE" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="content" />
<data android:mimeType="application/vnd.android.package-archive" />
</intent-filter>
<intent-filter android:priority="1">
<action android:name="android.intent.action.INSTALL_PACKAGE" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="package" />
<data android:scheme="content" />
</intent-filter>
<intent-filter android:priority="1">
<action android:name="android.content.pm.action.CONFIRM_INSTALL" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>At this point we know that the original context.startActivity(intent) was pulled up by com.android.packageinstaller.InstallStart
frameworks/base/packages/PackageInstaller/src/com/android/packageinstaller/InstallStart.java
static final String SCHEME_PACKAGE = "package";
static final String SCHEME_CONTENT = "content";
Intent nextActivity = new Intent(intent);
nextActivity.setFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT| Intent.FLAG_GRANT_READ_URI_PERMISSION);
// The the installation source as the nextActivity thinks this activity is the source, hence
// set the originating UID and sourceInfo explicitly
nextActivity.putExtra(PackageInstallerActivity.EXTRA_CALLING_PACKAGE, callingPackage);
nextActivity.putExtra(PackageInstallerActivity.EXTRA_CALLING_ATTRIBUTION_TAG,callingAttributionTag);
nextActivity.putExtra(PackageInstallerActivity.EXTRA_ORIGINAL_SOURCE_INFO, sourceInfo);
nextActivity.putExtra(Intent.EXTRA_ORIGINATING_UID, originatingUid);
if (isSessionInstall) {
nextActivity.setClass(this, PackageInstallerActivity.class);
} else {
Uri packageUri = intent.getData();
if (packageUri != null && packageUri.getScheme().equals(ContentResolver.SCHEME_CONTENT)) {
// [IMPORTANT] This path is deprecated, but should still work. Only necessary
// features should be added.
// Copy file to prevent it from being changed underneath this process
nextActivity.setClass(this, InstallStaging.class);
} else if (packageUri != null && packageUri.getScheme().equals(PackageInstallerActivity.SCHEME_PACKAGE)) {
nextActivity.setClass(this, PackageInstallerActivity.class);
} else {
Intent result = new Intent();
result.putExtra(Intent.EXTRA_INSTALL_RESULT,PackageManager.INSTALL_FAILED_INVALID_URI);
setResult(RESULT_FIRST_USER, result);
nextActivity = null;
}
}
if (nextActivity != null) {
startActivity(nextActivity);
}
finish();It can be seen that packageUri.getScheme().equals(ContentResolver.SCHEME_CONTENT) is true; so here startActivity(nextActivity); opens PackageInstallerActivity