Question

嗨，我已经创建了一个GridView来在android studio中显示图像，现在我想将这些图像之一设置为主屏幕，锁定屏幕或两者的墙纸我该怎么办？

这是我的代码

MainActivity.java

package com.wall.codyrim;

import androidx.annotation.NonNull;
import androidx.appcompat.app.ActionBarDrawerToggle;
import androidx.appcompat.app.AppCompatActivity;
import androidx.drawerlayout.widget.DrawerLayout;

import android.content.Intent;
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.GridView;
public class MainActivity extends AppCompatActivity {
    GridView gridView;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    gridView = (GridView) findViewById(R.id.grid_view);

    gridView.setAdapter(new ImageAdapter(this));

    gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {

            Intent intent = new Intent(getApplicationContext(),FullScreenActivity.class);
            intent.putExtra("id",position);
            startActivity(intent);

        }
    });
}    
}

FullScreenActivity.java

package com.wall.codyrim;

import androidx.appcompat.app.AppCompatActivity;

import android.app.WallpaperManager;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;

import java.io.IOException;

public class FullScreenActivity extends AppCompatActivity {

ImageView imageView;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_full_screen);

    imageView = (ImageView) findViewById(R.id.image_view);

    getSupportActionBar().hide();
    getSupportActionBar().setTitle("Full Screnn Image");
    Intent i = getIntent();
    final int position = i.getExtras().getInt("id");
    final ImageAdapter imageAdapter = new ImageAdapter(this);
   imageView.setImageResource(imageAdapter.imageArray[position]);
}
}

activitymain.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 
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="#FFFFFF"
tools:context="com.wall.codyrim.MainActivity">


<GridView
    android:id="@+id/grid_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:numColumns="3"
    android:columnWidth="90dp"
    android:horizontalSpacing="10dp"
    android:verticalSpacing="10dp"
    android:gravity="center"
    android:stretchMode="columnWidth"/>
</androidx.constraintlayout.widget.ConstraintLayout>

activityfullscreen.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 
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.wall.codyrim.FullScreenActivity">
<ImageView
    android:id="@+id/image_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_constraintBottom_toTopOf="parent"
    app:layout_constraintEnd_toStartOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

这是我的代码，希望您能在此问题上为我提供帮助

如何在Android Studio中将壁纸设置为主屏幕，锁定屏幕或同时设置为两者

0 个答案: