我正在创建一个聊天应用程序,您可以在其中创建群组。创建组我创建了一个新活动。它显示在预览中,但是当我运行应用程序并打开活动时不会显示。我在另一部手机上尝试过,只显示了CircleImageView。但是它的OnClickListner无法正常工作。编译,记录或调试时没有错误。
我什至尝试使用断点检查错误,但是没有输出。展示广告的专家。尝试更改布局,但未显示任何内容。
我不知道错误,所以我粘贴了CreateGroupActivity.java文件以及activity_create_group.xml
CreateGroupActivity.java:
package com.satyamedh.chitchatmessenger;
import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.MobileAds;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.theartofdev.edmodo.cropper.CropImage;
import com.theartofdev.edmodo.cropper.CropImageView;
import de.hdodenhof.circleimageview.CircleImageView;
public class CreateGroupActivity extends AppCompatActivity
{
private CircleImageView circleImageView;
private EditText editText;
private Button buttonconf, buttoncanc;
private final static int chosenProfileImage = 1;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create_group);
initializeFields();
buttoncanc.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent profileIntent = new Intent(CreateGroupActivity.this, MainActivity.class);
startActivity(profileIntent);
}
});
buttonconf.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (TextUtils.isEmpty(editText.getText())){
Toast.makeText(CreateGroupActivity.this, "Please enter text..", Toast.LENGTH_SHORT).show();
}
}
});
circleImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent galleryIntent = new Intent();
galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
galleryIntent.setType("image/*");
startActivityForResult(galleryIntent, chosenProfileImage);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == chosenProfileImage && resultCode == RESULT_OK && data != null)
{
Uri imageUri = data.getData();
CropImage
.activity()
.setGuidelines(CropImageView.Guidelines.ON)
.start(this);
}
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE)
{
final CropImage.ActivityResult result = CropImage.getActivityResult(data);
if(resultCode == RESULT_OK) {
assert result != null;
Uri resultUri = result.getUri();
DatabaseReference rootref = FirebaseDatabase.getInstance().getReference();
Intent settingsIntent = new Intent(CreateGroupActivity.this, chooseUserActivity.class);
String key = rootref.push().getKey();
settingsIntent.putExtra("groupKey", key);
settingsIntent.putExtra("groupImage", resultUri);
settingsIntent.putExtra("groupName", editText.getText().toString());
startActivity(settingsIntent);
}
}
}
private void initializeFields()
{
MobileAds.initialize(this, "ca-app-pub-3127817354023186~6842500243");
final AdView mAdView;
mAdView = findViewById(R.id.my_adView_createGroup);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);
mAdView.setAdListener(new AdListener() {
@Override
public void onAdLoaded() {
// Code to be executed when an ad finishes loading.
}
@Override
public void onAdFailedToLoad(int errorCode) {
// Code to be executed when an ad request fails.
}
@Override
public void onAdOpened() {
// Code to be executed when an ad opens an overlay that
// covers the screen.
}
@Override
public void onAdClicked() {
// Code to be executed when the user clicks on an ad.
}
@Override
public void onAdLeftApplication() {
// Code to be executed when the user has left the app.
}
@Override
public void onAdClosed() {
// Code to be executed when the user is about to return
// to the app after tapping on an ad.
}
});
circleImageView = findViewById(R.id.create_group_image);
editText = findViewById(R.id.create_group_name);
buttonconf = findViewById(R.id.confirm_button);
buttoncanc = findViewById(R.id.cancel_button);
}
}
activity_create_group.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=".CreateGroupActivity">
<de.hdodenhof.circleimageview.CircleImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginStart="51dp"
android:layout_marginTop="87dp"
android:layout_marginEnd="259dp"
android:layout_marginBottom="551dp"
android:src="@drawable/profile_image"
android:id="@+id/create_group_image"/>
<EditText
android:layout_width="250dp"
android:layout_height="50dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginStart="167dp"
android:layout_marginTop="88dp"
android:layout_marginEnd="4dp"
android:layout_marginBottom="596dp"
android:background="@drawable/inputs"
android:id="@+id/create_group_name"
android:inputType="text"
android:hint="Group name here"/>
<Button
android:id="@+id/confirm_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginStart="168dp"
android:layout_marginTop="141dp"
android:layout_marginEnd="156dp"
android:layout_marginBottom="542dp"
android:text="Confirm"
android:background="@drawable/buttons"/>
<Button
android:id="@+id/cancel_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_alignParentBottom="true"
android:layout_marginStart="263dp"
android:layout_marginTop="140dp"
android:layout_marginEnd="60dp"
android:layout_marginBottom="546dp"
android:text="Cancel"
android:background="@drawable/buttons"/>
<com.google.android.gms.ads.AdView
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="@+id/my_adView_createGroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
ads:adSize="SMART_BANNER"
ads:adUnitId="ca-app-pub-3940256099942544/6300978111">
</com.google.android.gms.ads.AdView>
</RelativeLayout>
android手机(redmi 2)屏幕截图:
https://drive.google.com/file/d/18MMzLvcdIi8iLog1nR_NrJPcJf-NZG51/view?usp=sharing
pc android studio屏幕截图:
https://drive.google.com/file/d/1E3Suy967AS3aQS9TEkUlAh5kPjWr86u-/view?usp=sharing
我是stackoverflow的新手,所以我无法附加图像。抱歉。
也没有错误。
答案 0 :(得分:0)
这是正常现象,因为您使用了太多的对齐值和属性,导致布局无法响应,请使用下面的xml
,并且不要忘记添加所需的image:src
和背景
<?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=".CreateGroupActivity">
<de.hdodenhof.circleimageview.CircleImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_margin="20dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:id="@+id/create_group_image"/>
<EditText
android:layout_toRightOf="@id/create_group_image"
android:layout_width="250dp"
android:layout_marginTop="20dp"
android:layout_height="wrap_content"
android:id="@+id/create_group_name"
android:inputType="text"
android:hint="Group name here"/>
<Button
android:layout_below="@id/create_group_name"
android:layout_toRightOf="@id/create_group_image"
android:id="@+id/confirm_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Confirm"/>
<Button
android:layout_below="@id/create_group_name"
android:layout_toRightOf="@id/confirm_button"
android:id="@+id/cancel_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Cancel"/>
<com.google.android.gms.ads.AdView
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="@+id/my_adView_createGroup"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_alignParentBottom="true"
ads:adSize="SMART_BANNER"
ads:adUnitId="ca-app-pub-3940256099942544/6300978111">
</com.google.android.gms.ads.AdView>
</RelativeLayout>