Firebase应用程序崩溃 [英] Firebase App is crashing
本文介绍了Firebase应用程序崩溃的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在关注本教程:- https://www.youtube.com/watch ?v = x0ScnHJi8WY 我不知道为什么我的应用程序崩溃了
I'm following this tutorial:- https://www.youtube.com/watch?v=x0ScnHJi8WY and I don't know, why my app is crashing
activity_main.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="com.vks_apps.blogs.MainActivity">
</RelativeLayout>
MainActivity.java
package com.vks_apps.blogs;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
public class MainActivity extends AppCompatActivity
{
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu)
{
getMenuInflater().inflate(R.menu.main_menu,menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
if(item.getItemId()==R.id.action_add)
{
startActivity(new Intent(MainActivity.this,PostActivity.class));
}
return super.onOptionsItemSelected(item);
}
}
activity_post.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="com.vks_apps.blogs.PostActivity">
<ImageButton
android:id="@+id/imageSelect"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:adjustViewBounds="true"
android:background="#00ffffff"
android:scaleType="centerCrop"
android:src="@mipmap/add_btn" />
<EditText
android:id="@+id/titleField"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/imageSelect"
android:layout_centerHorizontal="true"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="20dp"
android:background="@drawable/input_outline"
android:hint="Post Title..."
android:paddingBottom="15dp"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:paddingTop="15dp"
android:singleLine="true" />
<EditText
android:id="@+id/descField"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/titleField"
android:layout_centerHorizontal="true"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="20dp"
android:background="@drawable/input_outline"
android:ems="10"
android:hint="Post Description..."
android:inputType="textMultiLine"
android:paddingBottom="15dp"
android:paddingLeft="15dp"
android:paddingRight="15dp"
android:paddingTop="15dp" />
<Button
android:id="@+id/submitBtn"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:background="@color/colorPrimary"
android:text="Submit Post"
android:textColor="#ffffff" />
</RelativeLayout>
PostActivity.java
package com.vks_apps.blogs;
import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageButton;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;
public class PostActivity extends AppCompatActivity
{
private ImageButton mSelectImage;
public static final int GALLERY_REQUEST = 1;
private Uri mImageUri = null;
private EditText mPostTitle, mPostDesc;
private Button mSubmitBtn;
private StorageReference mStorage;
private ProgressDialog mProgress;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_post);
mSelectImage = (ImageButton)findViewById(R.id.imageSelect);
mPostTitle = (EditText)findViewById(R.id.titleField);
mPostDesc = (EditText)findViewById(R.id.descField);
mSubmitBtn = (Button) findViewById(R.id.submitBtn);
mProgress = new ProgressDialog(this);
mStorage = FirebaseStorage.getInstance().getReference();
mSelectImage.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View view)
{
Intent galleryIntent = new Intent(Intent.ACTION_GET_CONTENT);
galleryIntent.setType("image/*");
startActivityForResult(galleryIntent,GALLERY_REQUEST);
}
});
mSubmitBtn.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View view)
{
startPosting();
}
});
}
private void startPosting()
{
mProgress.setMessage("Posting to Blog...");
mProgress.show();
String title_val = mPostTitle.getText().toString().trim();
String desc_val = mPostDesc.getText().toString().trim();
if((!TextUtils.isEmpty(title_val)) && (!TextUtils.isEmpty(desc_val)) && (mImageUri != null))
{
StorageReference filepath = mStorage.child("Blog_Images").child(mImageUri.getLastPathSegment());
filepath.putFile(mImageUri).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>()
{
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot)
{
@SuppressWarnings("VisibleForTests") Uri downloadUri = taskSnapshot.getDownloadUrl();
mProgress.dismiss();
}
});
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==GALLERY_REQUEST && resultCode==RESULT_OK)
{
mImageUri = data.getData();
mSelectImage.setImageURI(mImageUri);
}
}
}
app/build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
buildToolsVersion "26.0.0"
defaultConfig {
applicationId "com.vks_apps.blogs"
minSdkVersion 19
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:26.+'
compile 'com.android.support:recyclerview-v7:26.+'
compile 'com.android.support:cardview-v7:26.+'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.google.firebase:firebase-database:10.0.1'
compile 'com.google.firebase:firebase-storage:10.0.1'
compile 'com.google.firebase:firebase-auth:10.0.1'
compile 'com.firebaseui:firebase-ui-database:2.1.0'
testCompile 'junit:junit:4.12'
}
apply plugin: 'com.google.gms.google-services'
project/build.gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.3'
classpath 'com.google.gms:google-services:3.1.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.vks_apps.blogs">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
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=".PostActivity"></activity>
</application>
</manifest>
res/drawable/input_outline.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:color="@color/greyColor" android:width="1dp"/>
<corners android:radius="5dp"/>
</shape>
res/values/colors.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="colorPrimary">#0488d1</color>
<color name="colorPrimaryDark">#0477bd</color>
<color name="colorAccent">#FF4081</color>
<color name="greyColor">#c2c2c2</color>
</resources>
LOGCAT
07-23 23:22:31.904 6461-6461/com.vks_apps.blogs D/AndroidRuntime: Shutting down VM
--------- beginning of crash
07-23 23:22:31.904 6461-6461/com.vks_apps.blogs E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.vks_apps.blogs, PID: 6461
java.lang.NoClassDefFoundError: Failed resolution of: Lcom/google/android/gms/common/internal/zzac;
at com.google.firebase.storage.FirebaseStorage.getInstance(Unknown Source)
at com.vks_apps.blogs.PostActivity.onCreate(PostActivity.java:42)
at android.app.Activity.performCreate(Activity.java:6662)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.common.internal.zzac" on path: DexPathList[[zip file "/data/app/com.vks_apps.blogs-2/base.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_dependencies_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_0_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_1_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_2_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_3_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_4_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_5_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_6_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_7_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_8_apk.apk", zip file "/data/app/com.vks_apps.blogs-2/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.vks_apps.blogs-2/lib/x86, /system/lib, /vendor/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at com.google.firebase.storage.FirebaseStorage.getInstance(Unknown Source)
at com.vks_apps.blogs.PostActivity.onCreate(PostActivity.java:42)
at android.app.Activity.performCreate(Activity.java:6662)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1118)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6077)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
PS:请不要将此问题标记为重复，因为我已经尝试了所有其他方法.在这里，我编写了原始代码，没有进行任何修改.我还上传了我的应用崩溃的视频-您可以看到它: http://www.mediafire.com/file/xb61s4k0wojxy2z/app.mp4
PS: Don't mark this question as duplicate, as I've already tried all the other methods. Here I've written the original code without any modification. Also I've uploaded the video of my app's crashing - You can see it: http://www.mediafire.com/file/xb61s4k0wojxy2z/app.mp4
我也认为是因为这一行:
also I think it's happening because of this line :
mStorage = FirebaseStorage.getInstance().getReference();
因为当我删除此行时，我的应用程序运行正常，但是我需要此行来上传文件
because when i remove this line, my app is working fine, but i need this line to upload the file
推荐答案
FirebaseUI文档包含有关依赖项的部分，带有以下警告和兼容版本的表:
The FirebaseUI documentation contains a section on dependencies with the following warning and a table of compatible versions:
如果您在窗体的应用程序中使用任何依赖项 'com.google.firebase:firebase- :x.y.z'或编译 您需要确保"com.google.android.gms:play-services-:x.y.z" 您使用与所选FirebaseUI版本相同的版本 要求.
If you are using any dependencies in your app of the form compile 'com.google.firebase:firebase-:x.y.z' or compile 'com.google.android.gms:play-services-:x.y.z' you need to make sure that you use the same version that your chosen version of FirebaseUI requires.
您正在使用Firebase库的10.0.1版本.对于这些，您必须使用FirebaseUI组件的1.1.1版本:com.firebaseui:firebase-ui-database:1.1.1.
You are using version 10.0.1 of the Firebase libraries. For those, you must use version 1.1.1 of the FirebaseUI components: com.firebaseui:firebase-ui-database:1.1.1.
更新:
问题可能是与v26支持库的版本不兼容.尝试以下依赖项:
The problem may be a version incompatibility with the v26 support libs. Try these dependencies:
compile 'com.android.support:appcompat-v7:26.+'
compile 'com.android.support:recyclerview-v7:26.+'
compile 'com.android.support:cardview-v7:26.+'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.google.firebase:firebase-database:11.0.2' // CHANGED
compile 'com.google.firebase:firebase-storage:11.0.2' // CHANGED
compile 'com.google.firebase:firebase-auth:11.0.2' // CHANGED
compile 'com.firebaseui:firebase-ui-database:2.1.0' // CHANGED
这篇关于Firebase应用程序崩溃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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