EditText使用

MainActivity.java

package com.example.widgetall;

import android.os.Bundle;

import android.app.Activity;

import android.view.View;

import android.content.Intent;

import android.widget.Button;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

find_and_modify_button();

}

private void find_and_modify_button(){

Button edit_view_button=(Button)findViewById(R.id.edit_view_button);

edit_view_button.setOnClickListener(edit_view_button_listener);

}

private Button.OnClickListener  edit_view_button_listener=new Button.OnClickListener(){

public void onClick(View v){

Intent intent=new Intent();

intent.setClass(MainActivity.this, EditTextActivity.class);

startActivity(intent);

}

};

}

EditTextActivity.java

package com.example.widgetall;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.CheckBox;

import android.widget.EditText;

import android.widget.TextView;

public class EditTextActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setTitle("EditView Activity");

setContentView(R.layout.editview);

find_and_modify_editview();

}

private void find_and_modify_editview(){

Button get_edit_view_button=(Button)findViewById(R.id.get_edit_view_button);

get_edit_view_button.setOnClickListener(get_edit_view_button_listener);

}

private Button.OnClickListener get_edit_view_button_listener=new Button.OnClickListener(){

public void onClick(View v){

EditText edit_text=(EditText)findViewById(R.id.edit_text);

CharSequence edit_text_value=edit_text.getText();

setTitle("Edit的值："+edit_text_value);

}

};

}