First of all create some string values in strings.xml as follows
strings.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Loading Images From Gallery</string>
<string name="hello_world">Hello world!</string>
<string name="load_image_button_text">Load Image From Gallery</string>
<string name="image">image</string>
</resources>
Next create one button and image as follows
activity_main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="${relativePackage}.${activityClass}" >
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="loadImageFromGallery"
android:text="@string/load_image_button_text" />
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="@string/image"
android:src="@drawable/ic_launcher" />
</LinearLayout>
MainActivity.java:
package com.ram.loadingimagesfromgallery;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;
public class MainActivity extends Activity
{
// ImgeView to display image from gallery
ImageView imageView;
// variable to hold request code value
private final int REQ_CODE = 1;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initializing user interface from activity_main.xml file
imageView = (ImageView) findViewById(R.id.imageView);
}
// Method to listen action for the button
public void loadImageFromGallery(View view)
{
// Intent to mention which kind of action to be performed
Intent intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
// To launch intent
startActivityForResult(intent, REQ_CODE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQ_CODE && resultCode == RESULT_OK && data != null)
{
// Retrieve data this intent is operating on
Uri selectedImage = data.getData();
// The Media provider contains meta data for all available media on
// both internal and external storage devices.
String[] filePathColumn =
{ MediaStore.Images.Media.DATA };
// Query the given URI, returning a Cursor over the result set.
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn,
null, null, null);
// Move the cursor to the first row.
cursor.moveToFirst();
// To get given column index number
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
// Returns the value of the requested column as a String.
String picturePath = cursor.getString(columnIndex);
// Closes the Cursor, releasing all of its resources and making it
// completely invalid. Unlike deactivate() a call to requery() will
// not make the Cursor valid again.
cursor.close();
// Sets a Bitmap as the content of this ImageView.
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
}
}
strings.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Loading Images From Gallery</string>
<string name="hello_world">Hello world!</string>
<string name="load_image_button_text">Load Image From Gallery</string>
<string name="image">image</string>
</resources>
Next create one button and image as follows
activity_main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="${relativePackage}.${activityClass}" >
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:onClick="loadImageFromGallery"
android:text="@string/load_image_button_text" />
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:contentDescription="@string/image"
android:src="@drawable/ic_launcher" />
</LinearLayout>
MainActivity.java:
package com.ram.loadingimagesfromgallery;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;
public class MainActivity extends Activity
{
// ImgeView to display image from gallery
ImageView imageView;
// variable to hold request code value
private final int REQ_CODE = 1;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Initializing user interface from activity_main.xml file
imageView = (ImageView) findViewById(R.id.imageView);
}
// Method to listen action for the button
public void loadImageFromGallery(View view)
{
// Intent to mention which kind of action to be performed
Intent intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
// To launch intent
startActivityForResult(intent, REQ_CODE);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQ_CODE && resultCode == RESULT_OK && data != null)
{
// Retrieve data this intent is operating on
Uri selectedImage = data.getData();
// The Media provider contains meta data for all available media on
// both internal and external storage devices.
String[] filePathColumn =
{ MediaStore.Images.Media.DATA };
// Query the given URI, returning a Cursor over the result set.
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn,
null, null, null);
// Move the cursor to the first row.
cursor.moveToFirst();
// To get given column index number
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
// Returns the value of the requested column as a String.
String picturePath = cursor.getString(columnIndex);
// Closes the Cursor, releasing all of its resources and making it
// completely invalid. Unlike deactivate() a call to requery() will
// not make the Cursor valid again.
cursor.close();
// Sets a Bitmap as the content of this ImageView.
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
}
}
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