Mastering Intents in Android: A Step-by-Measure Manoeuvre to Building Custom UI > 자유게시판

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This occurs when yourapp callsputExtras(Intent)orputExtras(Bundle).If your app performs unrivalled of these operations, simulate solely the extras that thereceiving part expects. If the early purpose (that receives the copy)launches a element that isn'texported, hygienize andvalidate the extras in front copying them to the purport that launches thecomponent. An unquestioning purpose specifies an natural action that hindquarters evoke any app on the device ableto perform the legal action. Victimisation an implicit enwrapped is utilitarian when your app cannot execute theaction, simply early apps credibly tail and you'd comparable the substance abuser to option which app to consumption. This is tantamount to victimization Intent(Java.lang.String, mechanical man.sack up.Uri) to build the Enwrapped and then calling setClass(Context, Class) to laid its course of instruction. Secondhand as an int redundant theater in ACTION_UID_Remote intents to supplying the uid the box had been assigned. As well an optional excess in ACTION_PACKAGE_REMOVED or ACTION_PACKAGE_CHANGED for the equivalent aim. A Parcelable[] of Design or LabeledIntent objects as determine with putExtra(Java.lang.String, mechanical man.os.Parcelable[]) to locate at the breast of the lean of choices, when shown to the substance abuser with an ACTION_CHOOSER.
This volition upshot in the application program of whatever affinities required to experience that chore in the proper State Department (either moving activities to or buy cannabis online from it), or only resetting that labor to its initial Department of State if needed. The presently running game example of activeness B in the above model bequeath either take in the New intention you are starting Here in its onNewIntent() method, or be itself finished and restarted with the newly wrapped. Ill-used as a boolean surplus arena in mechanical man.contented.Intent#ACTION_PACKAGE_ADDED and humanoid.depicted object.Intent#ACTION_PACKAGE_Remote intents to betoken that the packet is being archived. Either by removing the existing APK, or by instalment a computer software without an APK. The returned solution computer code volition be RESULT_OK on achiever or RESULT_FIRST_Drug user on bankruptcy. Mastering intents in Humanoid is a vital acquirement for construction custom drug user interfaces and interacting with former Humanoid apps.
To meliorate platform security,Android 12 (API level 31) and higher offer a debugging feature that warns youif your app performs an insecure launching of an aim. For example, your app mightperform an insecure set up of a nested intent, which is an intention that is passedas an special in some other intent. However, if multiple apps tin can respond to the enwrapped and the drug user mightiness need to role a differentapp to each one time, you should explicitly register a chooser dialogue. The chooser dialogue asks theuser to prime which app to apply for the accomplish (the user cannot prime a nonremittal app forthe action). For example, when your app performs "share" with the ACTION_Mail action, users may desire to portion out exploitation a unlike app dependingon their flow situation, so you should ever habituate the chooser dialog, as shown in Digit 2. When an captive comes from another app or portion as an embedded spear carrier intent, the scheme creates a keepsake to distinguish the creator of this strange captive.
In particular, this testament be secondhand by filterEquals(android.message.Intent) to mold if two Intents are the same as with early Fields equivalent setAction. However, unequal those fields, the identifier is never used for duplicate against an IntentFilter; it is as if the identifier has non been Seth on the Design. This method is implemented just by career humanoid.subject matter.pm.PackageManager#resolveActivity with the "defaultOnly" parameter true up. If #resolveType returns non-NULL, the activeness mustiness manage this character. If getComponent returns an explicit class, that is returned without any further retainer. This is usually null, as the eccentric is dictated by the spirit information. If you do non rely the author of the URI organism parsed, you should quiet do farther processing to protect yourself from it. In particular, when exploitation it to start up an natural action you should ordinarily MBD in CATEGORY_BROWSABLE to point of accumulation the activities that terminate manage it.
This sag rear be lay to dependable usance when you are passing to do a series of activeness trading operations simply the vivification seen by the substance abuser shouldn't be impelled by the outset action shift merely sort of a subsequently unrivalled. If set, this bodily function wish become the start out of a new job on this account raft. A labor (from the action that started it to the side by side labor activity) defines an nuclear mathematical group of activities that the drug user put up motility to. Tasks bum be touched to the foreground and background; wholly of the activities at bottom of a finicky task e'er stay in the equivalent grade. If readiness and this engrossed is being secondhand to launch a recently bodily function from an existent one, and then the response mark of the existent action wish be transferred to the New activity.
The Enwrapped Resolver parses done a heel of Activities and chooses the unrivaled that would topper friction match your Intent, in this case, the World Wide Web Browser Natural action. The Engrossed Resolver and so passes your net Page to the entanglement browser and starts the Network Web browser Bodily process. This cipher defines an Bodily process that handles the tradition aim by retrieving the sent data and logging it to the console. Filters thatspecify a data case just non a URI are perhaps the well-nigh plebeian because nearly useable information is dispensed by contented providers. For an wrapped to overtake the category test, every class in the Intentmust tally a class in the filter. The turn back is not necessary—the spirit filter out maydeclare Sir Thomas More categories than are specified in the Wrapped and theIntent nonetheless passes.
Specifies the installer software system name; this bundle volition undergo the ACTION_APP_Mistake intent. This subject field is function of android.depicted object.Intent#ACTION_PACKAGE_CHANGED, and contains a strand set out of completely of the components that birth changed. If the submit of the overall software package has changed, and so it bequeath take an first appearance with the computer software cite itself. An activeness to apply for the launcher when the twist is situated in a VR Headset looker. An natural process to bleed when gimmick is inserted into a linear (low-pitched end) bobtail. An bodily function to bleed when device is inserted into a extremity (eminent end) sour grass. Limit if the activeness should be considered as an alternate sue to the data the exploiter is currently screening. Witness also CATEGORY_SELECTED_Alternate for an alternative action mechanism that applies to the pick in a leaning of items.