Android EditText 键入事件 —setOnKeyListener

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main.xml

<?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"><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="@string/hello"/><EditTextandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:id="@+id/myEditText"/><TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:id="@+id/myTextView"/></LinearLayout>

MainActivity.java

package zyf.EX_Ctrl_1;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 MainActivity extends Activity {private TextView mTextView01;private EditText mEditText01;@Overridepublic 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(){@Overridepublic boolean onKey(View v, int keyCode, KeyEvent event) {mTextView01.setText(mEditText01.getText().toString());return false;}});}}

运行结果：