Has anyone seen or compiled benchmarks comparing declarative (XML) versus programmatically created UI's in Android? There are things that Google has done to speed up the declarative approach, but you still do have the layout inflation step done at runtime. Have you ever switched (or considered) changing your UI from declarative to programmatic for any reason?
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How can I take a screenshot programmatically? So far I've learned that:
1) DDMS does it by sending "framebuffer:" to the adb service over a socket, which takes a screenshot in framebuffer_service.c that it sends back.
2) There are some proprietary screenshot apps out there that stipulate the user must have root access, I'm not sure why.
Would it be possible for an Android app to send "framebuffer:" to its own adb service and get the screenshot that way?
I'm looking for a programmatic way to set-up http proxy settings for android handsets. I've tried using android.provider.Settings.System.putString() to set System.HTTP_PROXY, but my call fails (I'm using a 2.2 emulator image at the moment). My code looks like:
if (System.putString(getContentResolver(), System.HTTP_PROXY, "10.10.2.1:8080")) {
tv.append("put for HTTP_PROXY succeeded. ");
} else { tv.append("put for HTTP_PROXY failed. "); }
I've also added to my android manifest:
<uses-permission android:name="android.permission.WRITE_SETTINGS" />
<uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
Although it's not clear from the docs which permission, if any, is required.
I'm familiar with this SO thread, but the technique there requires manual adb commands, which require the SDK tools and (possibly) a rooted phone. Is there a way to accomplish this? Ideally, I'd like away to set an http proxy that will be used for both data and WiFi connections.
I need to add some parts of my UI programmatically. I'm doing this because I need to set the ids of some elements up in such a way that they can be easily access in a for loop. So far I have this xml:
<?xml version="1.0" encoding="utf-8"?> <LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/attr_row" android:layout_width="fill_parent"
android:layout_height="wrap_content"> <EditText android:id="@+id/attr_name"
android:hint="Attribute" android:layout_width="0dip" android:layout_weight="2"
android:layout_height="wrap_content" android:inputType="textPersonName" />
<EditText android:id="@+id/attr_val" android:hint="Value"
android:layout_width="0dip" android:layout_weight="3"
android:layout_height="wrap_content" android:inputType="textPersonName" />
<ImageButton android:id="@+id/drop_attr" android:layout_width="wrap_content"
android:layout_height="wrap_content" android:background="@drawable/btn_delete_states"
android:layout_gravity="center_vertical" /> </LinearLayout>
At the moment, I inflate this xml five times like so:
for (int i = 0; i<5; i++) { LinearLayout attrList = (LinearLayout) findViewById (R.id.attr_list);
LayoutInflater inflater = getLayoutInflater();
View row = inflater.inflate(R.layout.attr_row, null);
LinearLayout extraAttr = (LinearLayout) row.findViewById (R.id.attr_row);
ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT);
attrList.addView(extraAttr, i, params); }
The link below shows two pictures - the layout hierarchy and the result in the emulator. http://picasaweb.google.com/bengoldcross/Android?authkey=Gv1sRgCJ785I...
As can be seen, the xml is inflated five times successfully but only one is actually displayed. Inspecting the hierarchy viewer a bit more explains why. The layout being displayed is at location x=0 y=111 all the others are being rendered at x=320 y=111. It would appear they are being displayed a) off screen and b) on top of each other. So, why are they and how do I stop it from happening?
Been stuck on this for a while and tried a few various things.Basically I've overridden frame layout to create myself a custom button. The frame layout has two children a button and a linearlayout with items in it.The problem is I'm trying to the get the button to stretch to the size of the frame layout (i.e. fill parent) and it isn't doing.
View 1 Replies View RelatedI want to mount SD card programmatic, how can I check?
View 1 Replies View RelatedI'm wondering how programmatic sd card mounting/unmounting can be achieved while the handset is connected to a pc via USB. I cannot find any managed API for that and also my jni attempts failed with errno: 1, [Operation not permitted] error.
View 1 Replies View RelatedI wanted to know if it is even possible to either set up or modify email account settings programmatically. I do not believe it is, due to email applications controlling their own settings (and thus would depend upon a ContentProvider from that specific client), but I have not yet found a definitive "no", either.
Further, I was wondering about the email account support on Android in general. It appears that Android 2.0 and above will allow for multiple ActiveSync/Exchange accounts and mulitple IMAP/POP3 accounts, and displays these in the same inbox. Is this claim true? Also, how is this different from the other major Android releases (Android 1.5 and 1.6)?
Is there a programmatic way to read the system logs? i know they are stored in /dev/log.
View 4 Replies View RelatedI am trying to understand the main differences between registering a BroadcastReceiver in the Manifest and registering it programmatically...
My understanding is basically as follows - would appreciate someone correcting my points if I am missing something.
Registered in Manifest:
- The OS will magically find and instantiate your class if needed, calling the onReceive() method, regardless what the running state of your application was
- Your receive will only get called once per broadcast (i.e. You can consider that registering in the manifest is like registering your 'class' for receiving the broadcast - and the broadcast instantiates your class as needed) (??)
Registered Programmatically:
- registering in code means that you are registering instances of your class to receive broadcast messages (i.e. if your code is a little sloppy, and you manage to register several times, you will end up with multiple BroadcastReceiver instances all having their onReceive() called for a broadcast
- to deregister, you need to deregister the specific BroadcastReceiver instance that you previously registered
- if your application gets destroyed by the OS, your onReceive() method will not be called for a broadcast
I would like to implement some sort of remote assistance tool (like vnc) for Android. Is there the possibility to capture a screen programmatically on the device?
View 3 Replies View RelatedIf a RelativeLayout must be generated at run time, what are the equivalent API calls for the attributes set in the XML Layout editor? Take for example this very simple RelativeLayout that places the second ImageView to the right of the first ImageView:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/ android"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:orientation="horizontal" android:background="@drawable/ bg_sunrise"
android:layout_gravity="center" android:gravity="center">
<ImageView android:id="@+id/ImageView01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/icon"></ ImageView>
<ImageView android:id="@+id/ImageView02" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_toRightOf="@id/ ImageView01" android:src="@drawable/icon"></ImageView> </RelativeLayout>
Of the many, variations I tried, I had the most hope for this one, but it didn't work either:
protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
RelativeLayout layout = new RelativeLayout(this);
layout.setLayoutParams( new ViewGroup.LayoutParams (
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT ) );
ImageView imageView1 = new ImageView(this);
imageView1.setImageResource(R.drawable.icon);
imageView1.setAdjustViewBounds(true);
// set the ImageView bounds to match the Drawable's dimensions
RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams (LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params1.addRule(RelativeLayout.ALIGN_PARENT_TOP); layout.addView(imageView1, params1);
ImageView imageView2 = new ImageView(this); imageView2.setImageResource(R.drawable.icon);
imageView2.setAdjustViewBounds(true); // set the ImageView bounds to match the Drawable's dimensions
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams
(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params2.addRule(RelativeLayout.RIGHT_OF, imageView1.getId());
layout.addView(imageView2, params2); this.setContentView(layout); }
Can anyone offer the Java equivalent to the above XML? Can anyone explain why there is no attribute, getter/setter, or method for accessing the properties that can be set in XML? What is the most elegant solution for dynamically creating Layouts, Views, and other Resources on the Android platform when there is no Java programmatic equivalent?
I want to populate a table, defined in layout xml file through the programmatic way. I have define Table with a single row defining its header, with all the attributes set. Now i want to know a way so that i can just replicate that header row in the table with new content.
I tried using inflator inflate(int,view) method, but at runtime it showed up with error.
Here is the XML code for the layout file defining the table
CODE:.................
"android:scrollbars" are used in XML layout file to declare whether a view having scrollbar. I would like do it programmatic. according to api doc, there seems no direct peer method. Should I have to read a attr xml file? http://developer.android.com/reference/android/view/View.html
View 3 Replies View Relatedtoday i meet the problem.i need technic can control the android machine from server.then i want send data from server to android with no request from android.
View 2 Replies View RelatedI'm trying to open a dialog window, but every time I try to open it it throws this exception:
CODE:.................
I'm creating it by calling showDialog with the display's id. The onCreateDialog handler logs fine and I can step through it without an issue, but I've attached it since it seems like I'm missing something:
CODE:............
Is there something missing from this? Some questions have talked about having this problem when creating a dialog from onCreate, which happen because the activity isn't created yet, but this is coming from a call from a menu object, and the appContext variable seems like it is correctly populated in the debugger.
I'm writing an application which connects to a back office site. The backoffice site contains a whole slew of JavaScript functions, at least 100 times the average site. Unfortunately it does not load them, and causes much of the functionality to not work properly. So I am running a test. I put a page out on my server which loads the FireBugLite javascript text. Its a lot of javascript and perfect to test and see if the Android WebView will load it. The WebView loads nothing, but the browser loads the Firebug Icon. What on earth would make the difference, why can it run in the browser and not in my WebView? Any suggestions.
More background information, in order to get the stinking backoffice application available on a Droid (or any other platform except windows) I needed to trick the bakcoffice application to believe what's accessing the website is Internet Explorer. I do this by modifying the WebView User Agent.Also for this application I've slimmed my landing page, so I could give you the source to offer me aid. package ksc.myKMB;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.Window;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebSettings;
import android.webkit.WebViewClient;
import android.widget.Toast;
public class myKMB extends Activity {
I already have JavaScript on the web browser on, the problem is the web view is acting to different from the web browser.
I want to implement my own Tokenizer base on the file
"MultiAutoCompleteTextView.java",
but I encounter an error "com.android.internal.R cannot be resolved" when I try to
import "MultiAutoCompleteTextView.java" to my project.
code:.................
I haven't research any solutions to resolve this problem.How to correct "com.android.internal.R.attr.autoCompleteTextViewStyle" my own attr?
1- Does Android Browser (Éclair code base) support the "plug-in" or not?
2- Why "Google Gears" support is removed from the clair code base?
I searched the forum and came to know that earlier version of the Android does not support it at all? Here is the link for that, but this query asked in Dec'2008.
At first,I have a database created by using Ruby on rails.I just already implement insert function(HTTPPost) in my Android Application and it's work.But I don't know how to retrieve specific record from my databases and insert it back to specific record in Android (Like edit function in RoR)This is my insert code :
private void insertComment() {DefaultHttpClient client = new DefaultHttpClient();HttpPost post = new HttpPost("http://10.10.3.87:3000/comments");
// Configure the form parameters
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
nvps.add(new BasicNameValuePair("comment[content]", t_comment.getText().toString();
nvps.add(new BasicNameValuePair("comment[id_account]", "1"));
nvps.add(new BasicNameValuePair("comment[id_place]", Integer.toString(position)I really try many ways out but it doesn't work and it takes very long time to fight with this piece of code. Actually, I really don't know how to specify RowID to HTTPPost.
I am doing some android development, and now I need to send some android application generated data onto a remote server (a database)?How can I do that? can I use direct JDBC connection and sql?
View 1 Replies View RelatedSo i am making a android app, and i want it to be so if i call lets say 911 it sends my GPS coordinents to a certain IP, i know everything but how i make it so if i call 911 it sends the info and how i can make it send the info to the IP via 3g,
View 3 Replies View RelatedI released updates of my apps yesterday and they are being hidden from android 1.5 and 1.6 phones.
This is due to a Market bug which hides apps with bluetooth permissions from android 1.5 and 1.6.
Come on Google fix the market. We spend countless hours making are apps work on ALL android versions and now you do this...
This issue has been raised since June, but has only affected me since i made an update to the market yesterday.
What exactly are mock tests... I need to know the mock and performance tests available in android for testing android apps..what is the best tool for testing android apps and how..
View 1 Replies View RelatedI'd like to add a menu option to the Android camera app. Is this possible to do using the current SDK? I know I need to add an intent-filter tag in my activity. But I don't know what I should put in the mime type. I want to be able to process the live camera previews if the user selects the menu option. So what do I put into the type tag of the intent-filter? Also I suppose I won't be using ALTERNATIVE or SELECTED-ALTERNATIVE for the category as I want to deal with the whole intent?
View 3 Replies View RelatedI was wondering if the market checks if the application can be installed on the device. For example, if I have an Android 1.6 and if I try to install an application with :"<uses-sdk android:minSdkVersion="7" />" on its manifest. What will happend ?
View 4 Replies View RelatedI have a question about bluetooth RSSI functionality on the Android (either 2.0 or 2.1):
It's easy enough to get the RSSI value when a bluetooth connection is created, but how can you repeatedly get the RSSI value of a connection that is already active? It's really important to be able to do this, because this lets you determine if bluetooth devices are close to each other or far away, but I can't find any appropriate function calls in the Android API.
I am having a bit of a problem with my Android. So what happened was I downloaded "DroidRootPro" from the market. I rooted my phone with this, installed the 800MHZ ROM image, rebooted and the phone came up great. I was actually surprised on how fast it became. Once the phone came back up, I tried installing one of the custom themes that came with that app (I know I should have left it alone). The phone than rebooted and I was never able to bring it back up. It gets stuck in this endless loop where it tries to boot but doesn�t get past the "Droid" splash screen, it just keeps rebooting every time.
Things I have tried:
-Wipe data/factory reset (in recovery mode), no go.
-Wipe cach partition, no go
-Restore from a "nandroid" backup, no go. I tried pretty much every combination of restores and am unable to bring the phone up.
Is there anyway I can download the factory image that comes with the phone, put it on an SD card and restore to that? I have looked all over but cant find any information on this.
I am trying to develop an app to supplement the built-in music player. I've used git to download the com.android.music package and looked around at its code. I can launch the music player by copying some of its code and launching activities with intents.
Now what I need to do is get a handle to its current view. In the MusicUtils.java file, I see a line that says
View nowPlayingView = a.findViewById(R.id.nowplaying);
I'd like to do the same thing. Only I don't have access to the R.java file, so I can't write e.g. R.id.nowplaying. How do I do this? How do I reference the music players R.java? I do know the R.java stuff is declared public so that shouldn't be a problem. Right?
Is it even possible? I saw this related question and am now wondering: http://stackoverflow.com/questions/2437271/how-to-load-com-android-music-code-into-eclipse-and-compile
I'm working against the Android 2.2 SDK, but it'd be helpful to know if the answer is different for older versions such as 1.5.
I am developing an application using com.google.android.maps.jar It is OK to develop it with Eclipse SDK. but an build-error happens when building system.img with GMS licence (com.google.android.maps.jar is already installed at out/target/common/ obj/JAVA_LIBRARIES/com.google.android.maps.jar_intermediates/ com.google.android.maps.jar)
make: *** No rule to make target `out/target/common/obj/JAVA_LIBRARIES/ com.google.android.maps.jar_intermediates/javalib.jar', needed by `out/ target/common/obj/APPS/LifeStory_intermediates/classes-full- debug.jar'. Stop.
Here is my Android.mk
CODE:.............