Android 手机编程实例源码：Widget 源代码

package com.eoemobile.book.ex_widgetdemo; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); find_and_modify_button(); } private void find_and_modify_button() { Button button = (Button) findViewById(R.id.button); button.setOnClickListener(button_listener); Button text_view_button = (Button) findViewById(R.id.text_view_button); text_view_button.setOnClickListener(text_view_button_listener); Button edit_view_button = (Button) findViewById(R.id.edit_view_button); edit_view_button.setOnClickListener(edit_view_button_listener); Button check_box_button = (Button) findViewById(R.id.check_box_button); check_box_button.setOnClickListener(check_box_button_listener); Button radio_group_button = (Button) findViewById(R.id.radio_group_button); radio_group_button.setOnClickListener(radio_group_button_listener); Button spinner_button = (Button) findViewById(R.id.spinner_button); spinner_button.setOnClickListener(spinner_button_listener); Button auto_complete_button = (Button) findViewById(R.id.auto_complete_button); auto_complete_button.setOnClickListener(auto_complete_button_listener); Button date_picker_button = (Button) findViewById(R.id.date_picker_button); date_picker_button.setOnClickListener(date_picker_button_listener); Button time_picker_button = (Button) findViewById(R.id.time_picker_button); time_picker_button.setOnClickListener(time_picker_button_listener); Button progress_bar_button = (Button) findViewById(R.id.progress_bar_button); progress_bar_button.setOnClickListener(progress_bar_button_listener); Button seek_bar_button = (Button) findViewById(R.id.seek_bar_button); seek_bar_button.setOnClickListener(seek_bar_button_listener); Button rating_bar_button = (Button) findViewById(R.id.rating_bar_button); rating_bar_button.setOnClickListener(rating_bar_button_listener); Button image_view_button = (Button) findViewById(R.id.image_view_button); image_view_button.setOnClickListener(image_view_button_listener); Button image_button_button = (Button) findViewById(R.id.image_button_button); image_button_button.setOnClickListener(image_button_button_listener); Button image_show_button = (Button) findViewById(R.id.image_show_button); image_show_button.setOnClickListener(image_show_button_listener); Button grid_view_button = (Button) findViewById(R.id.grid_view_button); grid_view_button.setOnClickListener(grid_view_button_listener); Button tab_demo_button = (Button) findViewById(R.id.tab_demo_button); tab_demo_button.setOnClickListener(tab_demo_button_listener); } private Button.OnClickListener button_listener = new Button.OnClickListener() { public void onClick(View v) { setTitle("哎呦,button被点了一下"); } }; private Button.OnClickListener text_view_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, ViewTextActivity.class); startActivity(intent); } }; 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); } }; private Button.OnClickListener check_box_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, CheckBoxActivity.class); startActivity(intent); } }; private Button.OnClickListener radio_group_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, RadioGroupActivity.class); startActivity(intent); } }; private Button.OnClickListener spinner_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, SpinnerActivity.class); startActivity(intent); } }; private Button.OnClickListener auto_complete_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, AutoCompleteTextViewActivity.class); startActivity(intent); } }; private Button.OnClickListener date_picker_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, DatePickerActivity.class); startActivity(intent); } }; private Button.OnClickListener time_picker_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, TimePickerActivity.class); startActivity(intent); } }; private Button.OnClickListener progress_bar_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, ProgressBarActivity.class); startActivity(intent); } }; private Button.OnClickListener seek_bar_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, SeekBarActivity.class); startActivity(intent); } }; private Button.OnClickListener rating_bar_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, RatingBarActivity.class); startActivity(intent); } }; private Button.OnClickListener image_view_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, ImageViewActivity.class); startActivity(intent); } }; private Button.OnClickListener image_button_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, ImageButtonActivity.class); startActivity(intent); } }; private Button.OnClickListener image_show_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, ImageShowActivity.class); startActivity(intent); } }; private Button.OnClickListener grid_view_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, GridViewActivity.class); startActivity(intent); } }; private Button.OnClickListener tab_demo_button_listener = new Button.OnClickListener() { public void onClick(View v) { Intent intent = new Intent(); intent.setClass(MainActivity.this, TabDemoActivity.class); startActivity(intent); } }; }