package com.android.ex07.widgetDemo;import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;public class Ex07_WidgetDemoActivity extends Activity{
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@SuppressWarnings("unused")
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) {
// TODO Auto-generated method stub
Intent intent =new Intent();
intent.setClass(Ex07_WidgetDemoActivity.this,TextActivity.class);
startActivity(intent);
}
};
@SuppressWarnings("unused")
private Button.OnClickListener get_view_button_listener = new Button.OnClickListener(){
public void onClick(View v) {
// TODO Auto-generated method stub
EditText edit_text = (EditText)findViewById(R.id.edit_text);
CharSequence edit_text_value = edit_text.getText();
setTitle("EditText的值:"+edit_text_value);
}
};
};
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;public class Ex07_WidgetDemoActivity extends Activity{
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
@SuppressWarnings("unused")
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) {
// TODO Auto-generated method stub
Intent intent =new Intent();
intent.setClass(Ex07_WidgetDemoActivity.this,TextActivity.class);
startActivity(intent);
}
};
@SuppressWarnings("unused")
private Button.OnClickListener get_view_button_listener = new Button.OnClickListener(){
public void onClick(View v) {
// TODO Auto-generated method stub
EditText edit_text = (EditText)findViewById(R.id.edit_text);
CharSequence edit_text_value = edit_text.getText();
setTitle("EditText的值:"+edit_text_value);
}
};
};
Button edit_view_button = (Button)findViewById(R.id.edit_view_button);
edit_view_button.setOnClickListener(edit_view_button_listener);
}
这个方法没有调用哦
}
这个函数你都没调用....
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
find_and_modify_button();
}都是真相帝。。
public class Ex07_WidgetDemoActivity extends Activity{
/** Called when the activity is first created. */
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
find_and_modify_button()
}
@SuppressWarnings("unused")
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); Button get_view_button = (Button)findViewById(R.id.get_view_button);
get_view_button.setOnClickListener(get_view_button_listener);
}
}没调用
}
没调用