显示文本框中的输入信息

浅浅的花香味﹌ 2022-07-16 02:16 190阅读 0赞

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      >
      <TextView  
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      android:text="@string/hello"
      />
      
      <EditText
      android:id="@+id/myEditText"
      android:layout_height="wrap_content"
      android:textSize="18sp"
      android:layout_x="29px"
      android:layout_y="33px"
      android:layout_width="175dp"/>
      
      <TextView
      android:id="@+id/myTextView"
      android:layout_width="135px"
      android:layout_height="41px"
      android:layout_x="33px"
      android:layout_y="106px"
      />
    </LinearLayout>

package dF.EX023;
    
    import dF.EX023.R;
    import android.app.Activity;
    import android.os.Bundle;
    import android.view.KeyEvent;
    import android.view.View;
    import android.widget.EditText;
    import android.widget.TextView;
    
    public class EX023 extends Activity
    {
      /*声明 TextView、EditText对象*/
      private TextView mTextView01; 
      private EditText mEditText01;   
      
      /** Called when the activity is first created. */
        @Override
      public void onCreate(Bundle savedInstanceState) 
      {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        /*取得TextView、EditText*/   
        mTextView01 = (TextView)findViewById(R.id.myTextView);
        mEditText01 = (EditText)findViewById(R.id.myEditText);
        
        /*设置EditText用OnKeyListener事件来启动*/
        mEditText01.setOnKeyListener(new EditText.OnKeyListener()
        {
          @Override
          public boolean onKey(View arg0, int arg1, KeyEvent arg2)
          {
            // TODO Auto-generated method stub
            /*设置TextView显示EditText所输入的内容*/
            mTextView01.setText(mEditText01.getText()); 
            return false;
          }
        });
    }
    }