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Firebase-Save-Images
<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:gravity="center_horizontal"
android:orientation="vertical"
tools:context="com.tabian.firebaseuploadimage.MainActivity">
<ScrollView
android:id="@+id/login_form"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/email_login_form"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText
android:id="@+id/email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Email"
android:inputType="textEmailAddress"
android:maxLines="1"/>
<EditText
android:id="@+id/password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Password"
android:imeActionId="@+id/login"
android:imeOptions="actionUnspecified"
android:inputType="textPassword"
android:maxLines="1"
/>
<Button
android:id="@+id/email_sign_in_button"
style="?android:textAppearanceSmall"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="Sign In"
android:textStyle="bold"/>
<Button
android:id="@+id/email_sign_out_button"
style="?android:textAppearanceSmall"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="Sign out"
android:textStyle="bold"/>
<Button
android:id="@+id/upload_screen"
style="?android:textAppearanceSmall"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="Upload"
android:textStyle="bold"/>
</LinearLayout>
</ScrollView>
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.tabian.firebaseuploadimage">
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.STORAGE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity android:name=".UploadActivity"></activity>
</application>
</manifest>
package com.tabian.firebaseuploadimage;
import android.content.Intent;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
public class MainActivity extends AppCompatActivity {
private static final String TAG = "MainActivity";
private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener mAuthListener;
// UI references.
private EditText mEmail, mPassword;
private Button btnSignIn, btnSignOut, btnUploadImage;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//declare buttons and edit texts in oncreate
mEmail = (EditText) findViewById(R.id.email);
mPassword = (EditText) findViewById(R.id.password);
btnSignIn = (Button) findViewById(R.id.email_sign_in_button);
btnSignOut = (Button) findViewById(R.id.email_sign_out_button);
btnUploadImage = (Button) findViewById(R.id.upload_screen);
mAuth = FirebaseAuth.getInstance();
mAuthListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
// User is signed in
Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
toastMessage("Successfully signed in with: " + user.getEmail());
} else {
// User is signed out
Log.d(TAG, "onAuthStateChanged:signed_out");
toastMessage("Successfully signed out.");
}
// ...
}
};
btnSignIn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String email = mEmail.getText().toString();
String pass = mPassword.getText().toString();
if (!email.equals("") && !pass.equals("")) {
mAuth.signInWithEmailAndPassword(email, pass);
} else {
toastMessage("You didn't fill in all the fields.");
}
}
});
btnSignOut.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
mAuth.signOut();
toastMessage("Signing Out...");
}
});
btnUploadImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d(TAG, "onClick: Switching Activities.");
Intent intent = new Intent(MainActivity.this, UploadActivity.class);
startActivity(intent);
}
});
}
@Override
public void onStart() {
super.onStart();
mAuth.addAuthStateListener(mAuthListener);
}
@Override
public void onStop() {
super.onStop();
if (mAuthListener != null) {
mAuth.removeAuthStateListener(mAuthListener);
}
}
//add a toast to show when successfully signed in
/**
* customizable toast
*
* @param message
*/
private void toastMessage(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
}
<?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"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:text="Upload"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="13dp"
android:id="@+id/btnUploadImage"/>
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/btnUploadImage"
android:layout_centerHorizontal="true">
<Button
android:text="Back"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="13dp"
android:layout_marginLeft="5dp"
android:id="@+id/btnBackImage"
/>
<Button
android:text="Next"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="13dp"
android:layout_marginLeft="5dp"
android:id="@+id/btnNextImage"
android:layout_toRightOf="@+id/btnBackImage"/>
</RelativeLayout>
<ImageView
android:layout_width="250dp"
android:layout_height="250dp"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
android:id="@+id/uploadImage"
/>
<EditText
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_below="@+id/uploadImage"
android:id="@+id/imageName"
android:hint="Enter image name"/>
</RelativeLayout>
package com.tabian.firebaseuploadimage;
import android.app.ProgressDialog;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.ArrayList;
/**
* Created by User on 2/13/2017.
*/
public class UploadActivity extends AppCompatActivity {
private static final String TAG = "UploadActivity";
//declare variables
private ImageView image;
private EditText imageName;
private Button btnUpload,btnNext,btnBack;
private ProgressDialog mProgressDialog;
private final static int mWidth = 512;
private final static int mLength = 512;
private ArrayList<String> pathArray;
private int array_position;
private StorageReference mStorageRef;
private FirebaseAuth auth;
public UploadActivity() {
}
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.upload_layout);
image = (ImageView) findViewById(R.id.uploadImage);
btnBack = (Button) findViewById(R.id.btnBackImage);
btnNext = (Button) findViewById(R.id.btnNextImage);
btnUpload = (Button) findViewById(R.id.btnUploadImage);
imageName = (EditText) findViewById(R.id.imageName);
pathArray = new ArrayList<>();
mProgressDialog = new ProgressDialog(UploadActivity.this);
auth = FirebaseAuth.getInstance();
mStorageRef = FirebaseStorage.getInstance().getReference();
checkFilePermissions();
addFilePaths();
btnBack.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(array_position > 0){
Log.d(TAG, "onClick: Back an Image.");
array_position = array_position - 1;
loadImageFromStorage();
}
}
});
btnNext.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(array_position < pathArray.size() - 1){
Log.d(TAG, "onClick: Next Image.");
array_position = array_position + 1;
loadImageFromStorage();
}
}
});
btnUpload.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d(TAG, "onClick: Uploading Image.");
mProgressDialog.setMessage("Uploading Image...");
mProgressDialog.show();
//get the signed in user
FirebaseUser user = auth.getCurrentUser();
String userID = user.getUid();
String name = imageName.getText().toString();
if(!name.equals("")){
Uri uri = Uri.fromFile(new File(pathArray.get(array_position)));
StorageReference storageReference = mStorageRef.child("images/users/" + userID + "/" + name + ".jpg");
storageReference.putFile(uri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
// Get a URL to the uploaded content
Uri downloadUrl = taskSnapshot.getDownloadUrl();
toastMessage("Upload Success");
mProgressDialog.dismiss();
}
}).addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
toastMessage("Upload Failed");
mProgressDialog.dismiss();
}
})
;
}
}
});
}
/**
* Add the file paths you want to use into the array
*/
private void addFilePaths(){
Log.d(TAG, "addFilePaths: Adding file paths.");
String path = System.getenv("EXTERNAL_STORAGE");
pathArray.add(path+"/Pictures/Portal/image1.jpg");
pathArray.add(path+"/Pictures/Portal/image2.jpg");
pathArray.add(path+"/Pictures/Portal/image3.jpg");
loadImageFromStorage();
}
private void loadImageFromStorage()
{
try{
String path = pathArray.get(array_position);
File f=new File(path, "");
Bitmap b = BitmapFactory.decodeStream(new FileInputStream(f));
image.setImageBitmap(b);
}catch (FileNotFoundException e){
Log.e(TAG, "loadImageFromStorage: FileNotFoundException: " + e.getMessage() );
}
}
private void checkFilePermissions() {
if(Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP){
int permissionCheck = UploadActivity.this.checkSelfPermission("Manifest.permission.READ_EXTERNAL_STORAGE");
permissionCheck += UploadActivity.this.checkSelfPermission("Manifest.permission.WRITE_EXTERNAL_STORAGE");
if (permissionCheck != 0) {
this.requestPermissions(new String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE,android.Manifest.permission.READ_EXTERNAL_STORAGE}, 1001); //Any number
}
}else{
Log.d(TAG, "checkBTPermissions: No need to check permissions. SDK version < LOLLIPOP.");
}
}
/**
* customizable toast
* @param message
*/
private void toastMessage(String message){
Toast.makeText(this,message,Toast.LENGTH_SHORT).show();
}
}
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