从 android 手机上的 android studio 运行后，应用程序只是打开和关闭

Posted 2023-04-15

【中文标题】从 android 手机上的 android studio 运行后，应用程序只是打开和关闭

【英文标题】：App just opens and closes after running from android studio on android phone

【发布时间】：2019-01-10 16:30:18

【问题描述】：

应用程序只是在 android studio 上从 android studio 运行后打开和关闭。

还会显示以下警告：

应用 gradle 文件必须依赖于 com.google.firebase:firebase-core，Firebase 服务才能按预期工作。

我尝试根据教程制作应用程序，该应用程序编译成功，但在安卓手机上运行时只是打开和关闭。

build.gradle

 apply plugin: 'com.android.application'

android 

compileSdkVersion 27
defaultConfig 
    applicationId "com.example.hp.chatapp"
    minSdkVersion 16
    targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"

buildTypes 
    release 
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    



dependencies 

implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

//add library
implementation 'com.android.support:design:27.1.1'
implementation 'com.firebaseui:firebase-ui-database:3.2.2'
implementation 'com.google.firebase:firebase-auth:10.2.1'
implementation 'com.firebaseui:firebase-ui-auth:3.2.2'

implementation "com.google.android.gms:play-services-gcm:10.2.1"


apply plugin: 'com.google.gms.google-services'

build.gradle

buildscript 

repositories 
    google()
    jcenter()

dependencies 
    classpath 'com.android.tools.build:gradle:3.1.3'
    classpath 'com.google.gms:google-services:4.0.2'


    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files

主要活动是

public class MainActivity extends AppCompatActivity 

private static int SIGN_IN_REQUEST_CODE= 1;
private FirebaseListAdapter<ChatMessage> adapter;
RelativeLayout activity_main;
FloatingActionButton fab;

@Override
public boolean onOptionsItemSelected(MenuItem item) 
    if(item.getItemId()==R.id.menu_sign_out)
        AuthUI.getInstance().signOut(this).addOnCompleteListener(new 
 OnCompleteListener<Void>() 
            @Override
            public void onComplete(@NonNull Task<Void> task) 
              Snackbar.make(activity_main,"You have been signed out.",Snackbar.LENGTH_SHORT).show();
              finish();
            
        );
    
    return true;


@Override
public boolean onCreateOptionsMenu(Menu menu) 
    getMenuInflater().inflate(R.menu.main_menu,menu);
    return true;


@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) 
    super.onActivityResult(requestCode, resultCode, data);
    if(requestCode==RESULT_OK)
        Snackbar.make(activity_main,"Successfully signed in.Welcome !",Snackbar.LENGTH_SHORT).show();
        displayChatMessage();
    
    else 
        Snackbar.make(activity_main,"We couldn't sign you in.Please try again later",Snackbar.LENGTH_SHORT).show();
        finish();
    


@Override
protected void onCreate(Bundle savedInstanceState) 
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    activity_main=(RelativeLayout)findViewById(R.id.activity_main);
    fab=(FloatingActionButton)findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() 
        @Override
        public void onClick(View view) 
            EditText input= (EditText)findViewById(R.id.input);
            FirebaseDatabase.getInstance().getReference().push().setValue(new ChatMessage(input.getText().toString(),FirebaseAuth.getInstance().getCurrentUser().getEmail()));
            input.setText("");
        
    );

//check if not sign in then navigate signin page
if(FirebaseAuth.getInstance().getCurrentUser()==null)

    startActivityForResult(AuthUI.getInstance().createSignInIntentBuilder().build(),SIGN_IN_REQUEST_CODE);
  
  else 
    Snackbar.make(activity_main,"Welcome "+FirebaseAuth.getInstance().getCurrentUser().getEmail(),Snackbar.LENGTH_SHORT).show();
   

//load content
    displayChatMessage();


private void displayChatMessage() 
    ListView listOfMessage=(ListView)findViewById(R.id.list_of_message);
    //Suppose you want to retrieve "chats" in your Firebase DB:
    Query query = 
 FirebaseDatabase.getInstance().getReference().child("chats");
//The error said the constructor expected FirebaseListOptions - here you create them:
    FirebaseListOptions<ChatMessage> options = new FirebaseListOptions.Builder<ChatMessage>()
            .setQuery(query, ChatMessage.class)
            .setLayout(android.R.layout.simple_list_item_1)
            .build();
    //Finally you pass them to the constructor here:
    adapter = new FirebaseListAdapter<ChatMessage>(options)
        @Override
        protected void populateView(View v, ChatMessage model, int position) 
            // Get references to the views of message.xml
            TextView messageText = (TextView)v.findViewById(R.id.message_text);
            TextView messageTime = (TextView)v.findViewById(R.id.message_time);
            TextView messageUser=(TextView)findViewById(R.id.message_user);
            messageText.setText(model.getMessageText());
            messageUser.setText(model.getMessageUser());
            messageTime.setText(DateFormat.format("dd-MM-yyyy (HH:mm:ss)",model.getMessageTime()));
        
    ;
listOfMessage.setAdapter(adapter);

已编辑

来自 logcat 的日志错误

08-03 02:00:47.736 3199-3199/com.example.hp.chatapp E/HAL: PATH3 /odm/lib64/hw/gralloc.qcom.so
PATH2 /vendor/lib64/hw/gralloc.qcom.so
PATH1 /system/lib64/hw/gralloc.qcom.so
PATH3 /odm/lib64/hw/gralloc.msm8953.so
08-03 02:00:47.737 3199-3199/com.example.hp.chatapp E/HAL: PATH2 /vendor/lib64/hw/gralloc.msm8953.so
PATH1 /system/lib64/hw/gralloc.msm8953.so

【问题讨论】：

把你的stacktrace放在这里

从你的 logcat 记录错误

@AbnerEscocio 刚刚添加了日志错误。

@AbnerEscocio 编辑了我的答案并添加了来自 logcat 的日志错误。请帮忙

【参考方案1】：

尝试在 Android Studio 中使用Firebase 工具。选择您要集成的服务，然后按照分步说明进行操作。

【参考方案2】：

假设所有其他设置都正确，错误是不言自明的。您需要在依赖项下的应用程序 gradle 文件中添加对 Firebase Core 的依赖项：

implementation 'com.google.firebase:firebase-core:16.0.1'

您可能还想查看下面的链接以了解任何缺少的步骤。

Add Firebase to Android Project

【讨论】：

但是添加这个后运行应用程序会崩溃