Я пробовал много примеров про просмотр сетки, но будет отображаться пустое действие или приложение остановлено. Я пытался использовать все решения на сайте, прежде чем написал свою проблему, но без какого-либо правильного результата. Код появляется без ошибок
Может ли кто-нибудь помочь мне, пожалуйста
MainActivity
package com.safaa.user.grideview;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
public class MainActivity extends AppCompatActivity {
GridView gridView;
int images[]={
R.drawable.image1,R.drawable.image2,
R.drawable.image3,R.drawable.image4,
R.drawable.image5,R.drawable.image6,
R.drawable.image7,R.drawable.image8,
R.drawable.image9};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gridView=findViewById(R.id.simpleGridView);
CustomAdapter customAdapter = new CustomAdapter(getApplicationContext(), images);
gridView.setAdapter(customAdapter);
gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(MainActivity.this, Second_Activity.class);
intent.putExtra("image", images[position]); // put image data in Intent
startActivity(intent); // start Intent
}
});
}
}
Activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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=".MainActivity">
<GridView
android:id="@+id/simpleGridView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:columnWidth="90dp"
android:gravity="center"
android:horizontalSpacing="10dp"
android:numColumns="auto_fit"
android:stretchMode="columnWidth"
android:verticalSpacing="10dp" />
</LinearLayout>
CustomAdapter.java
package com.safaa.user.grideview;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
public class CustomAdapter extends BaseAdapter {
Context context;
int images[];
LayoutInflater inflter;
public CustomAdapter(Context applicationContext, int[] images) {
this.context = applicationContext;
this.images = images;
inflter = (LayoutInflater.from(applicationContext));
}
@Override
public int getCount() {
return images.length;
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
view = inflter.inflate(R.layout.activity_gridview, null); // inflate the layout
ImageView icon = (ImageView) view.findViewById(R.id.icon); // get the reference of ImageView
icon.setImageResource(images[i]); // set logo images
return view; }
}
activity_gridView
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/icon"
android:layout_width="match_parent"
android:layout_height="120dp"
android:scaleType="fitXY"
android:layout_gravity="center_horizontal"
android:src="@drawable/image1" />
</LinearLayout>
Second_Activity
package com.safaa.user.grideview;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ImageView;
public class Second_Activity extends AppCompatActivity {
ImageView selectedImage;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second_);
selectedImage = (ImageView) findViewById(R.id.selectedImage); // init a ImageView
Intent intent = getIntent(); // get Intent which we set from Previous Activity
selectedImage.setImageResource(intent.getIntExtra("image", 0)); // get image from Intent and set it in ImageView
}
}
second_Activity.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"
android:background="#fff"
>
<ImageView
android:id="@+id/selectedImage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:scaleType="fitXY" />
</RelativeLayout >
mainfast
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.safaa.user.grideview">
<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=".Second_Activity"></activity>
</application>
</manifest>
buildGradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.safaa.user.grideview"
minSdkVersion 15
targetSdkVersion 28
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-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
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'
}