新手提问,EditText内容清空的问题
package android_edittext.ycf.test;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class Android_edittextActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button btn1 = (Button) this.findViewById(R.id.button1); btn1.setOnClickListener(new OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub EditText et = (EditText) Android_edittextActivity.this .findViewById(R.id.edit_2); String ettext = et.getText().toString(); if(ettext.length() <= 5) { Toast.makeText(Android_edittextActivity.this, "注册密码太短,注册失败", R.id.button1).show(); et.setText("");//*******DDMS提示问题出现在这行和下面一行 Android_edittextActivity.this.setContentView(et); } else { Toast.makeText(Android_edittextActivity.this, "恭喜您注册成功", R.id.button1).show(); } } }); Button btn2 = (Button) this.findViewById(R.id.button2); btn2.setOnClickListener(new OnClickListener() { public void onClick(View v) { // TODO Auto-generated method stub EditText et1 = (EditText) Android_edittextActivity.this .findViewById(R.id.edit_1); et1.setText(""); Android_edittextActivity.this.setContentView(et1); EditText et2 = (EditText) Android_edittextActivity.this .findViewById(R.id.edit_2); et1.setText(""); Android_edittextActivity.this.setContentView(et2); } }); }}