<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <Button android:id="@+id/btn_main_test1" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="測試經常使用簡單的Component" /> <Button android:id="@+id/btn_main_test2" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="測試菜單Component" /> <Button android:id="@+id/btn_main_test3" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="測試進度條Component" /> <Button android:id="@+id/btn_main_test4" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="測試對話框Component" /> </LinearLayout>

package com.atguigu.ui; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; public class MainActivity extends Activity implements OnClickListener { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); findViewById(R.id.btn_main_test1).setOnClickListener(this); findViewById(R.id.btn_main_test2).setOnClickListener(this); findViewById(R.id.btn_main_test3).setOnClickListener(this); findViewById(R.id.btn_main_test4).setOnClickListener(this); } @Override public void onClick(View v) { int id = v.getId(); switch (id) { case R.id.btn_main_test1: startActivity(new Intent(this,CommonActivity.class)); break; case R.id.btn_main_test2: startActivity(new Intent(this, MenuActivity.class)); break; case R.id.btn_main_test3: startActivity(new Intent(this,ProgressActivity.class)); break; case R.id.btn_main_test4: startActivity(new Intent(this, DialogActivity.class)); break; default: break; } } }

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <TextView android:id="@+id/tv_common_content" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="這是TextView的內容" android:textColor="#00ff00" android:textSize="20sp" /> <EditText android:id="@+id/et_common_number" android:layout_width="match_parent" android:layout_height="wrap_content" android:hint="輸入手機號碼" android:inputType="phone" android:singleLine="true" > </EditText> <Button android:id="@+id/btn_common_submit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="提交" /> <ImageView android:id="@+id/iv_common_play" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/ic_launcher" android:src="@android:drawable/ic_media_play" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="愛好" /> <CheckBox android:id="@+id/cb_common_basket" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="籃球" /> <CheckBox android:id="@+id/cb_common_foot" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="足球" /> <CheckBox android:id="@+id/cb_common_pingpang" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="乒乓" /> <Button android:id="@+id/btn_common_confirm" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="肯定" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="性別" /> <RadioGroup android:id="@+id/rg_common_sex" android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" > <RadioButton android:id="@+id/rb_common_male" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="男" /> <RadioButton android:id="@+id/rb_common_female" android:layout_width="wrap_content" android:layout_height="wrap_content" android:checked="true" android:text="女" /> </RadioGroup> </LinearLayout> </LinearLayout>

package com.atguigu.ui; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.CompoundButton; import android.widget.EditText; import android.widget.ImageView; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.TextView; import android.widget.Toast; public class CommonActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_common); /** * 1. TextView 文本視圖 * */ // 方法內的final屬性 final TextView tv_common_content = (TextView) findViewById(R.id.tv_common_content); // 設置監聽 tv_common_content.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(CommonActivity.this, tv_common_content.getText().toString(), 0).show(); } }); /** * 2、Button : 按鈕 */ final EditText et_common_number = (EditText) findViewById(R.id.et_common_number); // 得到button對象 Button btn_common_submit = (Button) findViewById(R.id.btn_common_submit); btn_common_submit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(CommonActivity.this, et_common_number.getText().toString(), 0).show(); } }); /** * 3、ImageView : 圖片視圖 */ // 獲得圖片視圖 final ImageView iv_common_play = (ImageView) findViewById(R.id.iv_common_play); // 獲得點擊事件 iv_common_play.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // 設置背景圖片 iv_common_play .setBackgroundResource(android.R.drawable.ic_media_play); // 設置前景圖片 iv_common_play.setImageResource(R.drawable.ic_launcher); } }); /** * 4、CheckBox */ CheckBox cb_common_basket = (CheckBox) findViewById(R.id.cb_common_basket); CheckBox cb_common_foot = (CheckBox) findViewById(R.id.cb_common_foot); CheckBox cb_common_pingpang = (CheckBox) findViewById(R.id.cb_common_pingpang); final List<String> likes = new ArrayList<String>(); OnCheckedChangeListener listener = new OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { String like = buttonView.getText().toString(); if (isChecked) { likes.add(like); } else { likes.remove(like); } } }; // 設置監聽 cb_common_basket.setOnCheckedChangeListener(listener); cb_common_foot.setOnCheckedChangeListener(listener); cb_common_pingpang.setOnCheckedChangeListener(listener); findViewById(R.id.btn_common_confirm).setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(CommonActivity.this, likes.toString(), 0) .show(); } }); /** * 5、RadioGroup/RadioButton */ RadioGroup rg_common_sex = (RadioGroup) findViewById(R.id.rg_common_sex); //為RadioGroup設置監聽事件 rg_common_sex.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { RadioButton radioButton = (RadioButton) group .findViewById(checkedId); Toast.makeText(CommonActivity.this, radioButton.getText().toString(), 0).show(); } }); } }

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <Button android:id="@+id/btn_test2_show_cm" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="顯示ContextMenu"/> <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="1. 點擊menu顯示選項菜單 2. 長按按鈕顯示上下文菜單" android:textSize="15dp"/> </LinearLayout>

<?xml version="1.0" encoding="utf⑻"?> <menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/menu_option_add" android:title="添加"></item> <item android:id="@+id/menu_option_update" android:title="更新"></item> </menu>

package com.atguigu.ui; import android.app.Activity; import android.os.Bundle; import android.view.ContextMenu; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ContextMenu.ContextMenuInfo; import android.widget.Toast; public class MenuActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_menu); // 為按鈕設置顯示上下文菜單的監聽 //這里傳this后，不用實現接口 findViewById(R.id.btn_test2_show_cm).setOnCreateContextMenuListener(this); } /** * 1、顯示上下文菜單（需要給按鈕設置監聽） */ @Override public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { menu.add(Menu.NONE, 3, Menu.NONE, "添加"); menu.add(Menu.NONE, 4, Menu.NONE, "刪除"); super.onCreateContextMenu(menu, v, menuInfo); } // 選擇某個上下文菜單項的回調 @Override public boolean onContextItemSelected(MenuItem item) { switch (item.getItemId()) { case 3: Toast.makeText(this, "點擊添加3", 0).show(); break; case 4: Toast.makeText(this, "點擊刪除4", 0).show(); break; default: break; } return super.onContextItemSelected(item); } /** * 顯示菜單（需要點擊menu鍵） */ @Override public boolean onCreateOptionsMenu(Menu menu) { // 向menu中添加menuitem menu.add(Menu.NONE, 1, Menu.NONE, "添加"); menu.add(Menu.NONE, 2, Menu.NONE, "更新"); return super.onCreateOptionsMenu(menu); } // 當選擇某個菜單項的回調方法 @Override public boolean onOptionsItemSelected(MenuItem item) { int itemId = item.getItemId(); if (itemId == 1) { Toast.makeText(this, "點擊添加", 0).show(); } else if (itemId == 2) { Toast.makeText(this, "點擊更新", 0).show(); } return super.onOptionsItemSelected(item); } /*@Override public boolean onCreateOptionsMenu(Menu menu) { // 得到menu的加載器 MenuInflater menuInflater = getMenuInflater(); // 加載option_menu.xml menuInflater.inflate(R.menu.option_menu, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { int itemId = item.getItemId(); switch (itemId) { case R.id.menu_option_add: Toast.makeText(this, "點擊添加----", 0).show(); break; case R.id.menu_option_update: Toast.makeText(this, "點擊更新----", 0).show(); break; default: break; } return super.onOptionsItemSelected(item); }*/ }

<?xml version="1.0" encoding="utf⑻"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="5dp"> <LinearLayout android:id="@+id/ll_progress1" android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center"> <ProgressBar android:id="@+id/pb_progress1" style="?android:attr/progressBarStyleLarge" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="正在加載中..." /> </LinearLayout> <ProgressBar android:id="@+id/pb_progress2" style="?android:attr/progressBarStyleHorizontal" android:layout_width="match_parent" android:layout_height="wrap_content" android:max="10" android:progress="2"/> <SeekBar android:id="@+id/sb_progress3" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout>

package com.atguigu.ui; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.LinearLayout; import android.widget.ProgressBar; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; public class ProgressActivity extends Activity { private LinearLayout ll_progress1; private SeekBar sb_progress3; private ProgressBar pb_progress2; private OnSeekBarChangeListener seekBarChangeListener = new OnSeekBarChangeListener() { @Override public void onStopTrackingTouch(SeekBar seekBar) {// 離開 // 得到當前進度 int progress = seekBar.getProgress(); // 設置pb_progress2進度 pb_progress2.setProgress(progress); // 判斷 if (progress == seekBar.getMax()) { //隱藏視圖(不占位) ll_progress1.setVisibility(View.GONE); } else { ll_progress1.setVisibility(View.VISIBLE); } } @Override public void onStartTrackingTouch(SeekBar seekBar) {// 按下 } @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {// 改變 } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_progress); // 獲得3個視圖對象 ll_progress1 = (LinearLayout) findViewById(R.id.ll_progress1); pb_progress2 = (ProgressBar) findViewById(R.id.pb_progress2); sb_progress3 = (SeekBar) findViewById(R.id.sb_progress3); // 設置最大進度1樣 pb_progress2.setMax(sb_progress3.getMax()); // 對sb_progress3設置變化監聽 sb_progress3.setOnSeekBarChangeListener(seekBarChangeListener); } }

<?xml version="1.0" encoding="utf⑻"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="300dp" android:layout_height="match_parent" android:orientation="vertical" > <ImageView android:id="@+id/imageView1" android:layout_width="fill_parent" android:layout_height="wrap_content" android:src="@drawable/dialog_head" /> <EditText android:id="@+id/et_dialog_username" android:layout_width="match_parent" android:layout_height="wrap_content" > <requestFocus /> </EditText> <EditText android:id="@+id/et_dialog_password" android:layout_width="match_parent" android:layout_height="wrap_content" /> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <Button android:id="@+id/btn_dialog_confirm" android:layout_width="0dp" android:layout_height="wrap_content" android:text="確 定" android:layout_weight="1"/> <Button android:id="@+id/btn_dialog_cancel" android:layout_width="0dp" android:layout_height="wrap_content" android:text="取 消" android:layout_weight="1"/> </LinearLayout> </LinearLayout>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <!-- AlertDialog --> <Button android:id="@+id/btn_test4_ad" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="showAD" android:text="顯示AlertDialog" /> <Button android:id="@+id/btn_test4_ld" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="showLD" android:text="顯示單選列表AlertDialog" /> <Button android:id="@+id/btn_test4_custom" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="showCD" android:text="顯示自定義AlertDialog" /> <!-- ProgressDialog --> <Button android:id="@+id/btn_test4_pd" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="showPD" android:text="顯示圓環進度ProgressDialog" android:layout_marginTop="20dp"/> <Button android:id="@+id/btn_test4_pd2" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="showPD2" android:text="顯示水平進度ProgressDialog" /> <!-- DateDialog與TimeDialog --> <Button android:id="@+id/btn_test4_dd" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="showDateAD" android:text="顯示DateDialog" android:layout_marginTop="20dp"/> <Button android:id="@+id/btn_test4_td" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="showTimeAD" android:text="顯示TimeDialog" /> </LinearLayout>

package com.atguigu.ui; import java.util.Calendar; import android.app.Activity; import android.app.AlertDialog; import android.app.DatePickerDialog; import android.app.DatePickerDialog.OnDateSetListener; import android.app.ProgressDialog; import android.app.TimePickerDialog; import android.app.TimePickerDialog.OnTimeSetListener; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.DatePicker; import android.widget.EditText; import android.widget.TimePicker; import android.widget.Toast; public class DialogActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_dialog); } /** * 顯示alertDialog */ public void showAD(View view) { // new AlertDialog() protected是受保護的 new AlertDialog.Builder(this).setTitle("刪除數據").setMessage("肯定刪除嗎？") .setPositiveButton("肯定", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { Toast.makeText(DialogActivity.this, "點擊肯定", 0).show(); } }) .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(DialogActivity.this, "點擊取消", 0).show(); } }).show(); }; /** * 顯示單選列表 */ public void showLD(View view) { final String[] items = { "紅", "黃", "藍" }; //this????????????????上下文環境 new AlertDialog.Builder(this) .setTitle("指定背景色彩") .setSingleChoiceItems(items, 1, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) {// which就是下標 String value = items[which]; Toast.makeText(DialogActivity.this, value, 0) .show(); // 移除 dialog.dismiss(); } }).show(); } /** * 自定義視圖 * @param view */ public void showCD(View view) { // 動態加載布局this????????? View v = View.inflate(this, R.layout.dialog_content, null); // 獲得視圖對象 final EditText et_dialog_username = (EditText) v .findViewById(R.id.et_dialog_username); final EditText et_dialog_password = (EditText) v .findViewById(R.id.et_dialog_password); Button btn_dialog_confirm = (Button) v .findViewById(R.id.btn_dialog_confirm); Button btn_dialog_cancel = (Button) v .findViewById(R.id.btn_dialog_cancel); // 創建并顯示對話框 final AlertDialog alertDialog = new AlertDialog.Builder(this) .setView(v).show(); // 為確認設置監聽 btn_dialog_confirm.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { // 獲得密碼和用戶名 String username = et_dialog_username.getText().toString(); String password = et_dialog_password.getText().toString(); Toast.makeText(DialogActivity.this, username + ":" + password, 0).show(); alertDialog.dismiss(); } }); // 為取消設置監聽 btn_dialog_cancel.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Toast.makeText(DialogActivity.this, "點擊了取消", 0).show(); alertDialog.dismiss(); } }); } /** * 顯示圓形進度 * @param view */ public void showPD(View view){ //上下文環境 final ProgressDialog dialog = ProgressDialog.show(this, "數據加載", "數據加載中"); //開啟線程 new Thread(){ public void run() { try { Thread.sleep(2000); } catch (InterruptedException e) { e.printStackTrace(); } dialog.dismiss(); }; }.start(); } /** * 顯示水平進度 * @param view */ public void showPD2(View view){ //上下文環境 final ProgressDialog dialog = new ProgressDialog(this); dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); dialog.show(); new Thread(){ public void run(){ while (dialog.getProgress()<dialog.getMax()) { //設置最新的進度 dialog.setProgress(dialog.getProgress()+10); try { sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } } dialog.dismiss(); } }.start(); } /** * 顯示日期dialog * @param view */ public void showDateAD(View view){ //日歷對象 Calendar calendar = Calendar.getInstance(); int year = calendar.get(Calendar.YEAR); int month = calendar.get(Calendar.MONTH); int day = calendar.get(Calendar.DAY_OF_MONTH); //顯示視圖布局 new DatePickerDialog(this, new OnDateSetListener() { @Override public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) { Toast.makeText(DialogActivity.this, year+":"+(monthOfYear+1)+":"+dayOfMonth, 0).show(); } }, year, month, day).show(); } /** * 顯示時間dialog * @param v */ public void showTimeAD(View v){ Calendar calendar = Calendar.getInstance(); int hourOfDay = calendar.get(Calendar.HOUR_OF_DAY); int minute = calendar.get(Calendar.MINUTE); new TimePickerDialog(this, new OnTimeSetListener() { @Override public void onTimeSet(TimePicker view, int hourOfDay, int minute) { Toast.makeText(DialogActivity.this, hourOfDay+":"+minute, 0).show(); } }, hourOfDay, minute, true).show(); } }