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Top Answer
Answered Aug 14, 2023 · 31 votes
Explanation
Let's take a look at your code and some modified examples:
// Example 1byte byteValue = 2;-// Example 2byte byteValue = 4/2;// Example 3byte byteValue = 2000;// Example 4byte byteValue = 500/2;// Example 5int n1 = 4;byte byteValue = n1/2;
Non-lossy conversion
You will get the mentioned compile-time error for Example 3, Example 4 and Example 5.
First of all, the simple math you have for Example 1 to 4 is executed at compile-time. So Java will compute 500 / 2 at compile-time and replace the code with basically byte byteValue = 250;.
Valid values for bytes in Java are -128 to 127. So any value outside of that range can not just be taken as a byte but requires explicit conversion. Because of that, Example 1 and Example 2 pass.
Lossy narrowing conversion
To understand why the rest fails, we have to study the Java Language Specification (JLS), more specifically chapter 5.1.3. Narrowing Primitive Conversion and 5.2. Assignment Contexts.
It says that a conversion from int to byte (if it is outside of the range of byte) is a narrowing primitive conversion and that it may lose information (for obvious reasons). It continues by explaining how the conversion is done:
A narrowing conversion of a signed integer to an integral type T simply discards all but the n lowest order bits, where n is the number of bits used to represent type T. In addition to a possible loss of information about the magnitude of the numeric value, this may cause the sign of the resulting value to differ from the sign of the input value.
From the second chapter, assignments with narrow conversions are allowed if the value is a constant expression.
In addition, if the expression is a constant expression (§15.29) of type byte, short, char, or int:
A narrowing primitive conversion may be used if the variable is of type byte, short, or char, and the value of the constant expression is representable in the type of the variable.
Long story short, a narrowing conversion that may lose information (because the value exceeds the range) has to explicitly be announced to Java. Java will not just do it for you without you forcing it. That is done by a cast.
So for example
byte byteValue = (byte) (500 / 2);-
resulting in the value -6.
Constant expression
Your last example is very interesting:
int n1 = 4;byte byteValue = n1/2;-
Although this does not exceed the range, Java still treats it as lossy narrowing conversion. Why is that the case?
Well, Java can not ensure 100% that n1 is not changed last second before n1/2 is executed. Therefore, it would have to consider all of your code to see if maybe someone accesses n1 sneaky and changes it. Java does not do this kind of analysis at compile-time.
So if you can tell Java that n1 stays 4 and can actually never change, then this will actually compile. In this specific case, it would be enough to make it final. So with
final int n1 = 4;byte byteValue = n1/2;-
it will actually compile because Java knows that n1 stays 4 and can not change anymore. Hence it can compute n1/2 at compile-time to 2 and replace the code with basically byte byteValue = 2;, which is in range.
So you made n1 / 2 a constant expression, as explained before in 5.2. Assignment Contexts.
You can check the details what it needs to have a constant expression in 15.29. Constant Expressions. Basically everything simple that can easily be computed in place without any method invocations or other fancy stuff.
1/5
Top Answer
Answered Sep 05, 2023 · 0 votes
I had find issue in your code. Inside Click event of button change as per below. use startActivityForResult() instead of startActivity().
It will works.
2/5
Top Answer
Answered Sep 04, 2017 · 34 votes
TL;DR Consider the following code from TableLayout:
public void requestLayout() { if (mInitialized) { int count = getChildCount(); for (int i = 0; i < count; i++) { getChildAt(i).forceLayout(); } } super.requestLayout();}
Here each child of the TableLayout will be flagged to be measured on a future layout pass through a call to forceLayout(). Similar processing will occur if requestLayout() is called on each child, but requestLayout() bubbles up through the view hierachy, so the requestLayout() of a child of TableLayout will call its parent's requestLayout(). This will set up an infinite loop with TableLayout and its child calling one another. forceLayout() forces measurement without the threat of infinite recursion.
forceLayout()
does not call requestLayout() on its parent as stated but clears the view's cache and sets a couple of flags.
public void forceLayout() { if (mMeasureCache != null) mMeasureCache.clear(); mPrivateFlags |= PFLAG_FORCE_LAYOUT; mPrivateFlags |= PFLAG_INVALIDATED;}
requestLayout()
clears the cache and sets these same flags as forceLayout() but also might call requestLayout() on the parent.
public void requestLayout() { if (mMeasureCache != null) mMeasureCache.clear(); ... mPrivateFlags |= PFLAG_FORCE_LAYOUT; mPrivateFlags |= PFLAG_INVALIDATED; if (mParent != null && !mParent.isLayoutRequested()) { mParent.requestLayout(); } ...}
requestLayout() should bubble up through the entire hierarchy.
So, what does forceLayout() actually do? To research this question, I took the provided app and modified it to trace calls to onMeasure(), onLayout() and onDraw() for the two view groups (Grandparent and Parent) and the child view. I added a sibling child to the first to compare what happens to the two of them. I also used the debugger to trace calls to measure() and requestLayout(). Output was captured in logcat and from logcat a spreadsheet was produced summarizing the operations. (Source code and documentation reference in this answer is cataloged at this GitHub project.
The test app calls forceLayout() and requestLayout() for the two view groups and child view in all possible combinations - 64 in all. (Many of these combinations are not realistic in the real world, but are included for completeness.) The spreadsheet below summarizes key areas for discussion. The full sheet can be found at the GitHub repository.
Section A - In this section, forceLayout() is called on the three views. As Suragch noted, nothing really happens other than onDraw() is called when forceLayout() is invoked on all the views. Here is the log for section A:
I/MainActivity: 1******************************************* I/MainActivity: 2******************************************* I/MainActivity: 3******************************************* I/MainActivity: 4******************************************* I/MainActivity: 5******************************************* I/MainActivity: 6******************************************* I/MainActivity: 7******************************************* I/MyChildView: onDraw called (1)
"1****..." corresponds to the line in the spreadsheet. Lines like "I/MyChildView: onDraw called (1)" identifies the view ("MyChildView"), the view method ("onDraw") and "(x)" will be "(1)" for the first child view, "(2)" for the second child view and "(null)" for other non-child views.
This is an unexpected result given the name of the method: forceLayout().
Section B - On line 8, requestLayout() is called on the child view and the results are expected: a measure, layout and drawing pass are taken on all the views. Line 9 adds a call to forceLayout() to the child, but the results are the same. Here is the log for section B:
/MainActivity: 8******************************************* I/requestLayout: MyChildView (1) I/requestLayout: MyChildView isLayoutRequested=false (1) I/requestLayout: ViewGroupParent (null) I/requestLayout: ViewGroupParent isLayoutRequested=false (null) I/requestLayout: ViewGroupGrandparent (null) I/requestLayout: ViewGroupGrandparent isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: ContentFrameLayout (null) I/requestLayout: ContentFrameLayout isLayoutRequested=false (null) I/requestLayout: ActionBarOverlayLayout (null) I/requestLayout: ActionBarOverlayLayout isLayoutRequested=false (null) I/requestLayout: FrameLayout (null) I/requestLayout: FrameLayout isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: DecorView (null) I/requestLayout: DecorView isLayoutRequested=false (null) I/measure: ViewGroupGrandparent (null) I/ViewGroupGrandparent: onMeasure called I/measure: ViewGroupParent (null) I/ViewGroupParent: onMeasure called I/measure: MyChildView (1) I/MyChildView: onMeasure called (1) I/measure: MyChildView (2) I/ViewGroupGrandparent: onLayout called I/ViewGroupParent: onLayout called I/MyChildView: onLayout called (1) I/MyChildView: onDraw called (1) I/MainActivity: 9******************************************* I/requestLayout: MyChildView (1) I/requestLayout: MyChildView isLayoutRequested=false (1) I/requestLayout: ViewGroupParent (null) I/requestLayout: ViewGroupParent isLayoutRequested=false (null) I/requestLayout: ViewGroupGrandparent (null) I/requestLayout: ViewGroupGrandparent isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: ContentFrameLayout (null) I/requestLayout: ContentFrameLayout isLayoutRequested=false (null) I/requestLayout: ActionBarOverlayLayout (null) I/requestLayout: ActionBarOverlayLayout isLayoutRequested=false (null) I/requestLayout: FrameLayout (null) I/requestLayout: FrameLayout isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: DecorView (null) I/requestLayout: DecorView isLayoutRequested=false (null) I/measure: ViewGroupGrandparent (null) I/ViewGroupGrandparent: onMeasure called I/measure: ViewGroupParent (null) I/ViewGroupParent: onMeasure called I/measure: MyChildView (1) I/MyChildView: onMeasure called (1) I/measure: MyChildView (2) I/ViewGroupGrandparent: onLayout called I/ViewGroupParent: onLayout called I/MyChildView: onLayout called (1) I/MyChildView: onDraw called (1)
Section C - Here is where things get interesting. For lines 10 and 11, requestLayout() is called on the child view and forceLayout() is called on the child's parent view. The result is that the subsequent measure/layout/draw passes that we saw in section B do not happen. I believe that this is why fluidsonic said that forceLayout() is broken. See https://stackoverflow.com/a/44781500/6287910.
In fact, the child view considers calling requestLayout() on the parent but finds that a layout has already been requested on the parent. (mParent != null && !mParent.isLayoutRequested()). Here is a link to the code for isLayoutRequested().
public boolean isLayoutRequested() { return (mPrivateFlags & PFLAG_FORCE_LAYOUT) == PFLAG_FORCE_LAYOUT;}-
Remember that forceLayout() set the PFLAG_FORCE_LAYOUT flag. This is why the requestLayout() chain stops at the parent. This could be an issue or just a misuse of forceLayout().
Continuing on with the rest of section C, the most we can "force" is a call to the child's onDraw().
Here is the log for section C:
I/MainActivity: 10******************************************* I/requestLayout: MyChildView (1) I/requestLayout: MyChildView isLayoutRequested=true (1) I/MainActivity: 11******************************************* I/requestLayout: MyChildView (1) I/requestLayout: MyChildView isLayoutRequested=true (1) I/MainActivity: 12******************************************* I/requestLayout: MyChildView (1) I/requestLayout: MyChildView isLayoutRequested=false (1) I/requestLayout: ViewGroupParent (null) I/requestLayout: ViewGroupParent isLayoutRequested=true (null) I/MyChildView: onDraw called (1) I/MainActivity: 13******************************************* I/requestLayout: MyChildView (1) I/requestLayout: MyChildView isLayoutRequested=false (1) I/requestLayout: ViewGroupParent (null) I/requestLayout: ViewGroupParent isLayoutRequested=true (null) I/MyChildView: onDraw called (1) I/MainActivity: 14******************************************* I/requestLayout: MyChildView (1) I/requestLayout: MyChildView isLayoutRequested=true (1) I/MyChildView: onDraw called (1) I/MainActivity: 15******************************************* I/requestLayout: MyChildView (1) I/requestLayout: MyChildView isLayoutRequested=true (1) I/MyChildView: onDraw called (1)
Section D - This section may hold the secret to forceLayout(). On line 16, a call to requestLayout() on the parent results in a measure/layout pass for the parent and the grandparent but not the child. If a call to forceLayout() is made on the child, then the child is included. In fact, a call is made to the child's onMeasure() while a call is not made to its sibling's onMeasure(). This is due to the call to forceLayout() on the child. So, it seems, that here forceLayout() is being used to force the framework to measure a child that would not ordinarily be measured. I will note that this only seems to happen when forceLayout() is called on a _direct descendent of the target view of requestLayout().
One such example of this type of processing is in TableLayout. In the requestLayout() override in TableLayout, forceLayout() is called on each child. This will avoid calling requestLayout() on each child and the associated overhead that would entail (although probably small). It will also avoid disastrous recursion since the child's requestLayout() may call the parent's requestLayout() that will call the child's...you get the idea. Here is the code from TableLayout:
public void requestLayout() { if (mInitialized) { int count = getChildCount(); for (int i = 0; i < count; i++) { getChildAt(i).forceLayout(); } } super.requestLayout();}
In ListView.java, there is a need to remeasure a child before reuse See the code here. forceLayout() works here to get the child remeasured.
// Since this view was measured directly aginst the parent measure// spec, we must measure it again before reuse.child.forceLayout();-
Here is the log for section D:
I/MainActivity: 16******************************************* I/requestLayout: ViewGroupParent (null) I/requestLayout: ViewGroupParent isLayoutRequested=false (null) I/requestLayout: ViewGroupGrandparent (null) I/requestLayout: ViewGroupGrandparent isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: ContentFrameLayout (null) I/requestLayout: ContentFrameLayout isLayoutRequested=false (null) I/requestLayout: ActionBarOverlayLayout (null) I/requestLayout: ActionBarOverlayLayout isLayoutRequested=false (null) I/requestLayout: FrameLayout (null) I/requestLayout: FrameLayout isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: DecorView (null) I/requestLayout: DecorView isLayoutRequested=false (null) I/measure: ViewGroupGrandparent (null) I/ViewGroupGrandparent: onMeasure called I/measure: ViewGroupParent (null) I/ViewGroupParent: onMeasure called I/measure: MyChildView (1) I/measure: MyChildView (2) I/ViewGroupGrandparent: onLayout called I/ViewGroupParent: onLayout called I/MainActivity: 17******************************************* I/requestLayout: ViewGroupParent (null) I/requestLayout: ViewGroupParent isLayoutRequested=false (null) I/requestLayout: ViewGroupGrandparent (null) I/requestLayout: ViewGroupGrandparent isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: ContentFrameLayout (null) I/requestLayout: ContentFrameLayout isLayoutRequested=false (null) I/requestLayout: ActionBarOverlayLayout (null) I/requestLayout: ActionBarOverlayLayout isLayoutRequested=false (null) I/requestLayout: FrameLayout (null) I/requestLayout: FrameLayout isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: DecorView (null) I/requestLayout: DecorView isLayoutRequested=false (null) I/measure: ViewGroupGrandparent (null) I/ViewGroupGrandparent: onMeasure called I/measure: ViewGroupParent (null) I/ViewGroupParent: onMeasure called I/measure: MyChildView (1) I/MyChildView: onMeasure called (1) I/measure: MyChildView (2) I/ViewGroupGrandparent: onLayout called I/ViewGroupParent: onLayout called I/MyChildView: onLayout called (1) I/MyChildView: onDraw called (1)
Section E - This section further demonstrates that only direct descendents of the target view of a call to requestLayout() seems to participate in the triggered layout passes. Lines 34 and 35 seem to indicate that a nested views can chain.
Here is the log for section E:
I/MainActivity: 32******************************************* I/requestLayout: ViewGroupGrandparent (null) I/requestLayout: ViewGroupGrandparent isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: ContentFrameLayout (null) I/requestLayout: ContentFrameLayout isLayoutRequested=false (null) I/requestLayout: ActionBarOverlayLayout (null) I/requestLayout: ActionBarOverlayLayout isLayoutRequested=false (null) I/requestLayout: FrameLayout (null) I/requestLayout: FrameLayout isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: DecorView (null) I/requestLayout: DecorView isLayoutRequested=false (null) I/measure: ViewGroupGrandparent (null) I/ViewGroupGrandparent: onMeasure called I/measure: ViewGroupParent (null) I/ViewGroupGrandparent: onLayout called I/MainActivity: 33******************************************* I/requestLayout: ViewGroupGrandparent (null) I/requestLayout: ViewGroupGrandparent isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: ContentFrameLayout (null) I/requestLayout: ContentFrameLayout isLayoutRequested=false (null) I/requestLayout: ActionBarOverlayLayout (null) I/requestLayout: ActionBarOverlayLayout isLayoutRequested=false (null) I/requestLayout: FrameLayout (null) I/requestLayout: FrameLayout isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: DecorView (null) I/requestLayout: DecorView isLayoutRequested=false (null) I/measure: ViewGroupGrandparent (null) I/ViewGroupGrandparent: onMeasure called I/measure: ViewGroupParent (null) I/ViewGroupGrandparent: onLayout called I/MainActivity: 34******************************************* I/requestLayout: ViewGroupGrandparent (null) I/requestLayout: ViewGroupGrandparent isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: ContentFrameLayout (null) I/requestLayout: ContentFrameLayout isLayoutRequested=false (null) I/requestLayout: ActionBarOverlayLayout (null) I/requestLayout: ActionBarOverlayLayout isLayoutRequested=false (null) I/requestLayout: FrameLayout (null) I/requestLayout: FrameLayout isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: DecorView (null) I/requestLayout: DecorView isLayoutRequested=false (null) I/measure: ViewGroupGrandparent (null) I/ViewGroupGrandparent: onMeasure called I/measure: ViewGroupParent (null) I/ViewGroupParent: onMeasure called I/measure: MyChildView (1) I/measure: MyChildView (2) I/ViewGroupGrandparent: onLayout called I/ViewGroupParent: onLayout called I/MainActivity: 35******************************************* I/requestLayout: ViewGroupGrandparent (null) I/requestLayout: ViewGroupGrandparent isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: ContentFrameLayout (null) I/requestLayout: ContentFrameLayout isLayoutRequested=false (null) I/requestLayout: ActionBarOverlayLayout (null) I/requestLayout: ActionBarOverlayLayout isLayoutRequested=false (null) I/requestLayout: FrameLayout (null) I/requestLayout: FrameLayout isLayoutRequested=false (null) I/requestLayout: LinearLayout (null) I/requestLayout: LinearLayout isLayoutRequested=false (null) I/requestLayout: DecorView (null) I/requestLayout: DecorView isLayoutRequested=false (null) I/measure: ViewGroupGrandparent (null) I/ViewGroupGrandparent: onMeasure called I/measure: ViewGroupParent (null) I/ViewGroupParent: onMeasure called I/measure: MyChildView (1) I/MyChildView: onMeasure called (1) I/measure: MyChildView (2) I/ViewGroupGrandparent: onLayout called I/ViewGroupParent: onLayout called I/MyChildView: onLayout called (1) I/MyChildView: onDraw called (1)
So this is my take-away for forceLayout(): Use it when there are children that need to be re-measured such as in TableLayout and you don't want to call requestLayout() on each child - forceLayout() is lighter weight and will avoid recursion. (See notes in Section C.) forceLayout() can also be used to force a remeasurement specific direct children when needed when they would not ordinarily be measured. forceLayout() does not work alone and must be paired with appropriate calls to requestLayout()
3/5
Top Answer
Answered Aug 05, 2020 · 0 votes
I guess it is cause the editText is never leaving the focus.
On the GUI editor or XML, there is a property named "focusOnTouch" which editText Views have on true by default that let you get the focus for the editText, but if there is no other view with that property on true too, no view could get the focus.
That property exists for every View, set it to true for each View you want to consider to get the focus when clicking, otherwise, the focus won't be passed to other views like your textView or button.
4/5
When an application is launched in Android, it creates the primary thread of execution, referred to as the “main” thread. Most thread is liable for dispatching events to the acceptable interface widgets also as communicating with components from the Android UI toolkit. To keep your application responsive, it’s essential to avoid using the most thread to perform any operation which will find yourself keeping it blocked.
Network operations and database calls, also as loading of certain components, are common samples of operations that one should avoid within the main thread. Once they are called within the main thread, they’re called synchronously, which suggests that the UI will remain completely unresponsive until the operation completes. Due to this, tasks requiring calls are usually performed in different threads, which in turn avoids blocking the UI and keeps it responsive while the tasks are being performed. (i.e., they’ve performed asynchronously from the UI).
Android provides some ways of making and managing threads, and lots of third-party libraries exist that make thread management tons more pleasant. However, with numerous approaches at hand, choosing the proper one are often quite confusing. In...
5/5
www.geeksforgeeks.org · implicit-and-explicitImplicit and Explicit Intents in Android with Examples
www.geeksforgeeks.org · implicit-and-explicit
Aug 30, 2024 · Implicit Intent. Using implicit Intent, components can’t be specified. An action to be performed is declared by implicit intent. Then android operating system will filter out components that will respond to the action. For Example, In the above example, no component is specified, instead, an action is performed i.e. a webpage is going to be opened.
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developer.android.com · guide · componentsIntents and intent filters | Android Developers
developer.android.com · guide · components
Sep 20, 2024 · Example implicit intent. An implicit intent specifies an action that can invoke any app on the device able to perform the action. Using an implicit intent is useful when your app cannot perform the action, but other apps probably can and you'd like the user to pick which app to use.
medium.com · @ramadan123sayed · understandingUnderstanding Explicit and Implicit Intents in Android ...
medium.com · @ramadan123sayed · understanding
Aug 24, 2024 · They allow you to perform various tasks such as starting an activity, sending data, launching services, and broadcasting messages. Intents are divided into two main categories: Explicit Intents...
yash-soni.medium.com · mastering-implicit-intentsMastering Implicit Intents in Android: A Journey Beyond ...
yash-soni.medium.com · mastering-implicit-intentsApr 18, 2024 · Implicit intents are like secret passages in a game. They allow your app to communicate with other apps or system services without specifying the exact target component. Instead of saying,...
ninganna.medium.com · title-understanding-androidUnderstanding Android Intents: A Comprehensive Guide
ninganna.medium.com · title-understanding-androidMar 29, 2024 · Implicit Intents: Implicit intents are versatile and can be used to perform various actions without specifying the exact component to handle them. Below are some common types of implicit intents...
www.tutlane.com · tutorial · androidAndroid Implicit Intents with Examples - Tutlane
www.tutlane.com · tutorial · androidIn android, Implicit Intents won’t specify any name of the component to start instead, it declare an action to perform and it allows a component from other apps to handle it. For example, by using implicit intents we can request another app to show the location details of the user or etc.
People also ask
What is implicit intent in Android?
- Implicit Intent Using implicit Intent, components can’t be specified. An action to be performed is declared by implicit intent. Then android operating system will filter out components that will respond to the action. For Example, In the above example, no component is specified, instead, an action is performed i.e. a webpage is going to be opened.
Implicit and Explicit Intents in Android with Examples
www.geeksforgeeks.org/implicit-and-explicit-intents-in-android-with-examples/What is an implicit intent?
- An implicit intent specifies an action that can invoke any app on the device able to perform the action. Using an implicit intent is useful when your app cannot perform the action, but other apps probably can and you'd like the user to pick which app to use.
Intents and intent filters | Android Developers
developer.android.com/guide/components/intents-filtersHow do you use implicit intent in a news app?
- Imagine you’re building a news app. When users click on a news headline, you want to open the article in their preferred web browser. Instead of hardcoding a specific browser app, you can use an implicit intent to open any browser installed on the user’s device.
Mastering Implicit Intents in Android: A Journey Beyond Components
yash-soni.medium.com/mastering-implicit-intents-in-android-2eea52a65115How do I use an implicit intent with action_send?
- By using an implicit intent with the ACTION_SEND action, you can let users choose how they want to share their photos—via email, social media, or any compatible app. 3. Picking Contacts Need to let users select a contact from their address book? Implicit intents to the rescue!
Mastering Implicit Intents in Android: A Journey Beyond Components
yash-soni.medium.com/mastering-implicit-intents-in-android-2eea52a65115developer.android.com · guide · componentsCommon intents | Android Developers
developer.android.com · guide · componentsSep 20, 2024 · An intent lets you start an activity in another app by describing an action you'd like to perform (such as "view a map" or "take a picture") in an Intent object. This type of intent is called an implicit intent because….
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