I want to pass images from one activity to another when button clicked. I have one button "Show Image" in first activity. When I click on it, it should pass two images from my mipmap folder of my project and go to second activity and show one of the passed image on the ImageView of that activity. On second activity, I have two buttons which are supposed to receive images and show those images when clicked on each button. I tried using intent to pass the image, however, it didn't work. Is there other way to send images from mipmap folder from one activity to another?
Here is my code:
MainActivity.java
package com.example.abina.myapplication;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import java.io.ByteArrayOutputStream;
public class MainActivity extends AppCompatActivity {
Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
showmyImage();
}
});
}
public void showmyImage(){
Intent intent = new Intent(this, Main2Activity.class);
Bitmap bitmap; // your bitmap
bitmap = null;
ByteArrayOutputStream _bs = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 50, _bs);
intent.putExtra("byteArray", _bs.toByteArray());
startActivity(intent);
}
}
activity_main.xml
<RelativeLayout android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:layout_marginStart="137dp"
android:text="Show Image" />
</RelativeLayout>
Main2Activity.java
package com.example.abina.myapplication;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.provider.ContactsContract;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Button;
import android.widget.ImageView;
public class Main2Activity extends AppCompatActivity {
Button image1;
Button image2;
ImageView imageView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
image1 =(Button) findViewById(R.id.image1);
image2 = (Button) findViewById(R.id.image2);
imageView =(ImageView) findViewById(R.id.imageView);
if(getIntent().hasExtra("byteArray")) {
Bitmap _bitmap = BitmapFactory.decodeByteArray(
getIntent().getByteArrayExtra("byteArray"),0,getIntent().getByteArrayExtra("byteArray").length);
imageView.setImageBitmap(_bitmap);
}
}
}
activity_main2.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".Main2Activity">
<Button
android:id="#+id/image1"
android:layout_width="199dp"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:text="Image1" />
<Button
android:id="#+id/image2"
android:layout_width="183dp"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:layout_marginEnd="0dp"
android:text="Image2" />
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</RelativeLayout>
Images
First the mipmap folders are for placing your app/launcher icons (which are shown on the homescreen) in only. Any other drawable assets you use should be placed in the relevant drawable folders.
Next since they will be in your drawables, I would just pass the #DrawableRes id e.g. the R.id.image_name value.
Intent intent = new Intent(this, Main2Activity.class);
intent.putExtra(IMAGE_RES_ID_KEY, R.id.imageName);
startActivity(intent);
Also I would recommend that you use a public static variable IMAGE_RES_ID_KEY for your extra key to avoid typos.
Then on the other side you can simply
if(getIntent().hasExtra(MainActivity.IMAGE_RES_ID_KEY)) {
imageView.setImageResource(getIntent().getIntExtra(MainActivity.IMAGE_RES_ID_KEY, 0));
}
Related
I have recently made an App which has a basic Intent which opens the default camera app on device.
But I want to expand it's functionality which will enable it to store the captured image from camera to the SQLite Database. Along with displaying the images already stored in the database. Also I want to display the Date & Time of the image which is captured below the image, as well as Add a Comment box below the date/time of the image.
The code for the MainActivity is as follows:
import android.content.Intent;
import android.graphics.Bitmap;
import android.provider.MediaStore;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
ImageView imageView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btnCamera = (Button) findViewById(R.id.btnCamera);
imageView = (ImageView) findViewById(R.id.imageView);
btnCamera.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 0);
}
});
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Bitmap bitmap = (Bitmap)data.getExtras().get("data");
imageView.setImageBitmap(bitmap);
}
}
Code for the Activity's Layout XML is as follows:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="16dp"
android:paddingLeft="16dp"
android:paddingRight="16dp"
android:paddingTop="16dp"
android:orientation="vertical"
android:weightSum="10"
tools:context=".MainActivity">
<ImageView
android:id="#+id/imageView"
android:layout_weight="9"
android:layout_width="match_parent"
android:layout_height="fill_parent"
/>
<Button
android:id="#+id/btnCamera"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/holo_red_dark"
android:textColor="#android:color/white"
android:text="Open Camera"
/>
</LinearLayout>
Hey there so I want to create a App in android which have a overlayed Button and take a screenshot (if overlay Button is clicked) of every app on the phone (anything except these with FLAG_SECURE). I know that it's possible because this app actually do it: https://play.google.com/store/apps/details?id=com.tools.screenshot
So does anyone knows a code example which allows me to do this screenshot?
I already got the overlay Button so only need the screenshot code. Thanks
Too broad as answer, but had this from old blog:
taking_screenshot_in_android.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_margin="16dp"
android:gravity="center"
android:orientation="vertical">
<Button
android:id="#+id/capture_screen_shot"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="screenShot"
android:text="Take ScreenShot" />
<TextView
android:id="#+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="" />
<ImageView
android:id="#+id/imageView"
android:layout_width="200dp"
android:layout_height="250dp"
android:background="#ccc"
android:padding="5dp" />
<TextView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:autoLink="web"
android:gravity="center|bottom"
android:text="ViralAndroid.com"
android:textSize="26sp"
android:textStyle="bold" />
</LinearLayout>
TakingScreenShotAndroid.java
import android.graphics.Bitmap;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
public class TakingScreenShotAndroid extends AppCompatActivity {
TextView textView;
ImageView imageView;
Bitmap mbitmap;
Button captureScreenShot;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.taking_screenshot_in_android);
textView = (TextView) findViewById(R.id.textView);
textView.setText("Your ScreenShot Image:");
captureScreenShot = (Button) findViewById(R.id.capture_screen_shot);
imageView = (ImageView) findViewById(R.id.imageView);
}
public void screenShot(View view) {
mbitmap = getBitmapOFRootView(captureScreenShot);
imageView.setImageBitmap(mbitmap);
createImage(mbitmap);
}
public Bitmap getBitmapOFRootView(View v) {
View rootview = v.getRootView();
rootview.setDrawingCacheEnabled(true);
Bitmap bitmap1 = rootview.getDrawingCache();
return bitmap1;
}
public void createImage(Bitmap bmp) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 40, bytes);
File file = new File(Environment.getExternalStorageDirectory() +
"/capturedscreenandroid.jpg");
try {
file.createNewFile();
FileOutputStream outputStream = new FileOutputStream(file);
outputStream.write(bytes.toByteArray());
outputStream.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
strings.xml
<string name="app_name">Taking Screenshot in Android Programmatically</string>
Output:
JAVA:
package com.example.scott.testapplication;
import android.app.Activity;
import android.media.Image;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
public class HomeScreen extends Activity {
RelativeLayout Backround;
Button InitButton;
ImageView image;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home_screen);
Backround = (RelativeLayout) findViewById(R.id.Backround);
InitButton = (Button) findViewById(R.id.InitButton);
image = (ImageView) findViewById(R.id.image);
InitButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
/*insert code here*/
}
});
}
}
In order to insert the image, i'm thinking that I need to use a command like ImageView image = new (image), and then use another command to draw it on the display. I dont know which commands I should use.
XML:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/Backround"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin">
<ImageView
android:layout_width ="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/image"
android:scaleType="fitXY"
android:src="#drawable/DESERT2" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Initiate"
android:id="#+id/InitButton"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:layout_gravity="center_vertical" />
</RelativeLayout>
I would like to create the image on the event of the click of a button, I also created the ImageView in the xml file. Not sure if I should change something there.
you can use
image.setImageResource(R.drawable.yourDesiredImageName);
I am trying to display thumbnail of a video but I am not able to generate the thumbnail for the video.
My activity_main contains
<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="#+id/Thumbnail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
My Main Activity has the following code
package com.example.video1;
import android.app.Activity;
import android.graphics.Bitmap;
import android.media.ThumbnailUtils;
import android.os.Bundle;
import android.provider.MediaStore.Video.Thumbnails;
import android.widget.ImageView;
public class MainActivity extends Activity {
String filePath = "http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4";
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ImageView thumbnail_mini = (ImageView) findViewById(R.id.Thumbnail);
Bitmap bmThumbnail = ThumbnailUtils.createVideoThumbnail(filePath,
Thumbnails.MINI_KIND);
thumbnail_mini.setImageBitmap(bmThumbnail);
}
}
Its displaying nothing . How can I display the thumbnail of video?
You can't get the thumbnail from a link with the android SDK. You would have to download it locally and then use the thumbnail.utils
Edit: I cannot get this to work correctly. Probably because I have no idea what I am doing. Anyways, here's my code. If anyone could help, I'd be very grateful: I needs to get it to display the battery mood image for the corresponding mod...
Themes:
package com.cydeon.plasmamodz;
import android.app.ActionBar;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class Themes extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.themes);
ActionBar actionBar = getActionBar();
actionBar.hide();
Button Plus = (Button) findViewById(R.id.button1);
Button Blue = (Button) findViewById(R.id.button2);
Plus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent i = new Intent(Themes.this, Bmod.class);
i.putExtra("drawableResource", R.drawable.blue);
Themes.this.startActivity(i);
}
});
Blue.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent a = new Intent(Themes.this, Bmod.class);
a.putExtra("drawableResource1", R.drawable.plus);
Themes.this.startActivity(a);
}
});
}
}
Bmods:
package com.cydeon.plasmamodz;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;
public class Bmod extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.battery);
Intent i = getIntent();
int drawableResource = i.getIntExtra("drawableResource", R.drawable.blue);
ImageView img = (ImageView) findViewById(R.id.iv1);
img.setImageResource(R.drawable.blue);
Intent a = getIntent();
int drawableResource1 = a.getIntExtra("drawableResource1", R.drawable.plus);
ImageView img1 = (ImageView) findViewById(R.id.iv1);
img1.setImageResource(R.drawable.plus);
}
}
battery(xml):
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<Button
android:id="#+id/bInstall"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:text="Install" />
<Button
android:id="#+id/bReturn"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="Return" />
<ImageView
android:id="#+id/iv1"
android:layout_width="match_parent"
android:layout_height="800dp" />
</RelativeLayout>
Intent i = new Intent(this, BaseClassForMod);
i.putExtra("drawableResource", R.drawable.this_mod_drawable);
startActivity(i);
Then in that Activity's onCreate():
Intent i = getIntent();
int drawableResource = i.getIntExtra("drawableResource", R.drawable.default);
//Get a reference to your ImageView...
imageView.setImageResource(drawableResource);
Don't trust this code to compile, but that's the general idea. Use the same Activity for all of them, pass along the proper resource ID in the intent (e.g. for mod1, send the drawable ID for mod1), then in the activity, check for that resource ID and set it programmatically.
You shouldn't need 50 classes and 50 xml layouts if every one of them does the same thing. Make one activity and one layout. When the user selects something, pass an id of some kind as an Intent extra to the second activity so it can load whatever item is appropriate. I don't know how your data is modeled, but there should be a way to uniquely identify each option (and if there isn't, you should implement one).
Your first activity also doesn't need a button for each item. Use a ListView and an Adapter, and then you just need to provide a layout for one row.
make a single activity only. Inside of it get a reference to your image:
ImageView iv = (ImageView)findViewById(R.id.yourImgId);
Then set the picture to whichever one you want like:
iv.setImageResource(R.drawable.battery_img_1);