在android按钮监听器中以编程方式添加布局

1 回答

• 0

  检查此解决方案是否满足您的需求：

  活动代码：

  package com.example.abc;
  
  import android.app.Activity;
  import android.graphics.Color;
  import android.os.Bundle;
  import android.util.Log;
  import android.view.View;
  import android.view.View.OnClickListener;
  import android.widget.ImageView;
  import android.widget.RelativeLayout;
  
  public class MainActivity extends Activity {
  
      private RelativeLayout myImage, mainlayout;
      private ImageView img;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          setContentView(R.layout.activity_main);
  
          myImage = (RelativeLayout) findViewById(R.id.rot);
          mainlayout = (RelativeLayout) findViewById(R.id.mainlayout);
  
          img = (ImageView) findViewById(R.id.btn_categorry);
          img.setOnClickListener(new RecursionOnClickListener());
      }
  
      private int layoutId = 1;
  
      class RecursionOnClickListener implements OnClickListener {
  
          @Override
          public void onClick(View v) {
              RelativeLayout staticlayout = new RelativeLayout(getApplicationContext());
              staticlayout.setId(layoutId++);
              if(layoutId % 2 == 0) {
                  staticlayout.setBackgroundColor(Color.parseColor("#000000"));
              }
              else {
                  staticlayout.setBackgroundColor(Color.parseColor("#FF0000"));
              }
  
              ImageView add_btn = new ImageView(getApplicationContext());
              add_btn.setBackgroundResource(R.drawable.ic_launcher);
  
              RelativeLayout.LayoutParams parms2 = new RelativeLayout.LayoutParams(
                      RelativeLayout.LayoutParams.WRAP_CONTENT,
                      RelativeLayout.LayoutParams.WRAP_CONTENT);
              parms2.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
              parms2.addRule(RelativeLayout.CENTER_HORIZONTAL);
              add_btn.setLayoutParams(parms2);
              add_btn.setOnClickListener(new RecursionOnClickListener());
              staticlayout.addView(add_btn);
  
              RelativeLayout.LayoutParams parms = new RelativeLayout.LayoutParams(
                      RelativeLayout.LayoutParams.MATCH_PARENT,
                      RelativeLayout.LayoutParams.WRAP_CONTENT);
              parms.addRule(RelativeLayout.BELOW, mainlayout.getChildAt(mainlayout.getChildCount()-1).getId());
  
              staticlayout.setLayoutParams(parms);
              mainlayout.addView(staticlayout);
          }
  
      }
  
  }
  

  布局XML：

  <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:id="@+id/mainlayout"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="#00ff00" >
  
      <RelativeLayout
          android:id="@+id/rot"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_alignParentLeft="true"
          android:layout_alignParentTop="true"
          android:background="#ff0000" >
  
          <ImageView
              android:id="@+id/btn_categorry"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_alignParentRight="true"
              android:layout_alignParentTop="true"
              android:layout_marginRight="12dp"
              android:background="@drawable/ic_launcher" />
      </RelativeLayout>
  
  </RelativeLayout>
  

  回复于 2024-04-25T08:51:44+08:00