安卓Java源程序带选择头像功能的用户注册使用Intent回传数据 -

标题: 安卓Java源程序带选择头像功能的用户注册使用Intent回传数据 [打印本页]

作者: dori 时间: 2020-12-15 20:33
标题: 安卓Java源程序带选择头像功能的用户注册使用Intent回传数据
本帖最后由 dori 于 2020-12-18 23:12 编辑

完成带选择头像功能的用户注册应用程序开发。

图1

图2

图3

MainActivity.java文件：

import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends AppCompatActivity {
protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_main);
      //获取界面上的组件
      Button bn=findViewById(R.id.bn);
      //为按钮绑定事件监听器
      bn.setOnClickListener(new View.OnClickListener() {
         @Override
         public void onClick(View v) {
            //创建需要对应于目标Activity的Intent
            Intent intent=new Intent(MainActivity.this,SecondActivity.class);
            //启动指定Activity并等待返回结果,其中0x11是请求码，用于标识该请求
            startActivityForResult(intent,0x11);
         }
      });
}
@Override
public void onActivityResult(int requestCode,int resultCode,Intent intent)
{
      //当requestCode、resultCode同时为0x11时，即处理特定的结果
      if(requestCode==0x11&&resultCode==0x11)
      {
         //取出Intent里的Extras数据
         Bundle data=intent.getExtras();
         //取出Bundle中的数据
         int imageId=data.getInt("ID");
         ImageView imageView=findViewById(R.id.iv);
         imageView.setImageResource(imageId);
      }
}
}

SecondActivity.java文件：

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;

public class SecondActivity extends Activity {
//获取图片
public int []imageId=new int []{R.drawable.img01,R.drawable.img02,R.drawable.img03,
         R.drawable.img04, R.drawable.img05,R.drawable.img06,R.drawable.img07,
         R.drawable.img08,R.drawable.img09};
protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_second);
      //获取组件
      GridView gridView=findViewById(R.id.gridView1);
      BaseAdapter adapter=new BaseAdapter() {
         public View getView(int position, View convertView, ViewGroup parent) {
            ImageView imageView;
            if(convertView==null)
            {
                  imageView=new ImageView(SecondActivity.this);
                  imageView.setAdjustViewBounds(true);
                  imageView.setMaxWidth(158);
                  imageView.setMaxHeight(150);
                  imageView.setPadding(5, 5, 5, 5);
            }
            else
            {
                  imageView=(ImageView)convertView;
            }
            imageView.setImageResource(imageId[position]);
            return imageView;
         }
         @Override
         public long getItemId(int position) {
            return position;
         }
         @Override
         public Object getItem(int position) {
            return position;
         }
         @Override
         public int getCount() {
            return imageId.length;
         }
      };
      gridView.setAdapter(adapter);
      //绑定监听器
      gridView.setOnItemClickListener(new OnItemClickListener() {
         @Override
         public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            //获得Intent
            Intent intent=getIntent();
            Bundle bundle=new Bundle();
            bundle.putInt("ID", imageId[position]);
            intent.putExtras(bundle);
            setResult(0x11,intent);
            finish();
         }
      });
}
}

activity_main.xml文件：

<?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=".MainActivity">

<LinearLayout
      android:id="@+id/linearLayout2"
      android:layout_width="247dp"
      android:layout_height="280dp"
      android:layout_marginTop="100dp"
      android:layout_marginEnd="2dp"
      android:layout_marginRight="2dp"
      android:layout_marginBottom="365dp"
      android:orientation="vertical"
      app:layout_constraintBottom_toBottomOf="parent"
      app:layout_constraintEnd_toStartOf="@+id/linearLayout"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toTopOf="parent">

      <TableRow
         android:layout_width="match_parent"
         android:layout_height="59dp">

         <TextView
            android:id="@+id/textView"
            android:layout_width="143dp"
            android:layout_height="match_parent"
            android:text="用户名："
            android:textSize="25sp" />

         <EditText
            android:id="@+id/editText"
            android:layout_width="145dp"
            android:layout_height="match_parent"
            android:ems="10"
            android:gravity="start|top"
            android:inputType="textMultiLine" />
      </TableRow>

      <TableRow
         android:layout_width="match_parent"
         android:layout_height="59dp">

         <TextView
            android:id="@+id/textView2"
            android:layout_width="143dp"
            android:layout_height="match_parent"
            android:text="密码："
            android:textSize="25sp" />

         <EditText
            android:id="@+id/editText2"
            android:layout_width="118dp"
            android:layout_height="match_parent"
            android:ems="10"
            android:inputType="number" />
      </TableRow>

      <TableRow
         android:layout_width="match_parent"
         android:layout_height="59dp">

         <TextView
            android:id="@+id/textView3"
            android:layout_width="143dp"
            android:layout_height="49dp"
            android:text="确认密码："
            android:textSize="25sp" />

         <EditText
            android:id="@+id/editText3"
            android:layout_width="120dp"
            android:layout_height="match_parent"
            android:ems="10"
            android:inputType="number" />
      </TableRow>

      <TableRow
         android:layout_width="match_parent"
         android:layout_height="59dp">

         <TextView
            android:id="@+id/textView4"
            android:layout_width="wrap_content"
            android:layout_height="59dp"
            android:text="E-mail地址："
            android:textSize="25sp" />

         <EditText
            android:id="@+id/editText4"
            android:layout_width="103dp"
            android:layout_height="match_parent"
            android:ems="10"
            android:gravity="start|top"
            android:inputType="textMultiLine" />
      </TableRow>
</LinearLayout>

<LinearLayout
      android:id="@+id/linearLayout"
      android:layout_width="121dp"
      android:layout_height="283dp"
      android:layout_marginStart="2dp"
      android:layout_marginLeft="2dp"
      android:layout_marginTop="100dp"
      android:layout_marginBottom="363dp"
      android:orientation="vertical"
      app:layout_constraintBottom_toBottomOf="parent"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toEndOf="@+id/linearLayout2"
      app:layout_constraintTop_toTopOf="parent">

      <ImageView
         android:id="@+id/iv"
         android:layout_width="match_parent"
         android:layout_height="170dp"
         app:srcCompat="@drawable/icon" />

      <Button
         android:id="@+id/bn"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:text="选择头像"
         android:textSize="20sp" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

avtivity_second.xml文件：

<?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"
android:layout_width="match_parent"
android:layout_height="match_parent">

<GridView
      android:id="@+id/gridView1"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_marginTop="10px"
      android:horizontalSpacing="3px"
      android:verticalSpacing="3px"
      android:numColumns="4"/>
</LinearLayout>

使用Intent回传数据.rar (9.04 MB, 下载次数: 5)

作者: Lang2i 时间: 2025-2-21 08:15
我没学过，问问大神，这个代码已经包含前端的吗？

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