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Open images with Intent.ACTION_OPEN_DOCUMENT, Intent.ACTION_GET_CONTENT and Intent.ACTION_PICK

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Example show how to select images by calling startActivityForResult() with Intent.ACTION_OPEN_DOCUMENT (Android 4.4, API level 19, and higher), Intent.ACTION_GET_CONTENT and Intent.ACTION_PICK, then load it using InputStream.

Tested on Nexus 7 running Android 5.1.1, to load photos from local and from cloud of Google Photos.

In my test:
- if select photos with Intent.ACTION_OPEN_DOCUMENT or Intent.ACTION_GET_CONTENT, both photos on local storage and on Google Photos cloud storage can be loaded using InputStream.
- if select photos with Intent.ACTION_PICK, cannot load from Google Photos cloud storage. (or may be by other method, I don't know).


MainActivity.java
package com.blogspot.android_er.androidloadphoto;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import java.io.FileNotFoundException;
import java.io.InputStream;

public class MainActivity extends AppCompatActivity {

Button btnOpen, btnGet, btnPick;
TextView textInfo1, textInfo2;
ImageView imageView;

private static final int RQS_OPEN_IMAGE = 1;
private static final int RQS_GET_IMAGE = 2;
private static final int RQS_PICK_IMAGE = 3;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnOpen = (Button)findViewById(R.id.open);
btnGet = (Button)findViewById(R.id.get);
btnPick = (Button)findViewById(R.id.pick);
textInfo1 = (TextView)findViewById(R.id.info1);
textInfo2 = (TextView)findViewById(R.id.info2);
imageView = (ImageView) findViewById(R.id.image);

btnOpen.setOnClickListener(btnOpenOnClickListener);
btnGet.setOnClickListener(btnGetOnClickListener);
btnPick.setOnClickListener(btnPickOnClickListener);
}

View.OnClickListener btnOpenOnClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");

startActivityForResult(intent, RQS_OPEN_IMAGE);
}
};

View.OnClickListener btnGetOnClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setType("image/*");

startActivityForResult(intent, RQS_OPEN_IMAGE);
}
};

View.OnClickListener btnPickOnClickListener = new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, RQS_PICK_IMAGE);
}
};

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {


if (requestCode == RQS_OPEN_IMAGE ||
requestCode == RQS_GET_IMAGE ||
requestCode == RQS_PICK_IMAGE) {

imageView.setImageBitmap(null);
textInfo1.setText("");
textInfo2.setText("");

Uri mediaUri = data.getData();
textInfo1.setText(mediaUri.toString());
String mediaPath = mediaUri.getPath();
textInfo2.setText(mediaPath);

//display the image
try {
InputStream inputStream = getBaseContext().getContentResolver().openInputStream(mediaUri);
Bitmap bm = BitmapFactory.decodeStream(inputStream);
imageView.setImageBitmap(bm);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
}
}


activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:orientation="vertical"
tools:context="com.blogspot.android_er.androidloadphoto.MainActivity">

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:autoLink="web"
android:text="http://android-er.blogspot.com/"
android:textStyle="bold" />
<Button
android:id="@+id/open"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="OPEN Image"/>
<Button
android:id="@+id/get"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="GET Image"/>
<Button
android:id="@+id/pick"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="PICK Image"/>
<TextView
android:id="@+id/info1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textStyle="bold"/>
<TextView
android:id="@+id/info2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textStyle="italic"/>
<ImageView
android:id="@+id/image"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>



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