本文将带你了解Android应用开发之记录一次android测试实例，希望本文对大家学Android有所帮助。

记录一次android测试实例
/** * 测试进度条 */public class ProgressComponentActivity extends Activity   {    private LinearLayout   ll_progress_loading;    private ProgressBar   pd_progress_loading;    private SeekBar   sb_progress_loading;    private OnSeekBarChangeListener   onSeekBarChangeListener = new OnSeekBarChangeListener()   {        //离开滑杆        @Override        public   void onStopTrackingTouch(SeekBar seekBar)   {            Log.e("TAG",   "离开滑杆");            //1.得到SeekBar的进度            int   progress =   sb_progress_loading.getProgress();            //2.设置为ProgressBar的进度            pd_progress_loading.setProgress(progress);            //3.判断是否达到最大值            if   (progress == sb_progress_loading.getMax())   {                //如果达到最大值,设置圆形进度条不可见                ll_progress_loading.setVisibility(View.INVISIBLE);//可见占用空间//                ll_progress_loading.setVisibility(View.GONE);//不可见占用空间            }else{                //如果没有达到的话,设置圆形进度条显示                ll_progress_loading.setVisibility(View.VISIBLE);            }        }                 @Override        public   void onStartTrackingTouch(SeekBar seekBar) {            Log.e("TAG",   "按下滑杆");        }                 @Override        public   void onProgressChanged(SeekBar seekBar, int   progress,                boolean   fromUser)   {            Log.e("TAG",   "滑杆移动");        }    };      @Override    protected   void onCreate(Bundle savedInstanceState)   {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_progress_component);                 ll_progress_loading   = (LinearLayout)   findViewById(R.id.ll_progress_loading);        pd_progress_loading   = (ProgressBar)   findViewById(R.id.pd_progress_loading);        sb_progress_loading   = (SeekBar)   findViewById(R.id.sb_progress_loading);                 //给SeekBer设置监听        sb_progress_loading.setOnSeekBarChangeListener(onSeekBarChangeListener   );    } }     activity_progress_component.xml <LinearLayout   xmlns:android="https://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical"   >      <LinearLayout        android:id="@+id/ll_progress_loading"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:gravity="center">          <ProgressBar            style="?android:attr/progressBarStyleLarge"            android:layout_width="wrap_content"            android:layout_height="wrap_content"   />          <TextView            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="正在加载中... ..."   />      </LinearLayout>      <ProgressBar        android:id="@+id/pd_progress_loading"        style="?android:attr/progressBarStyleHorizontal"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:progress="30"/>      <SeekBar        android:id="@+id/sb_progress_loading"        android:layout_width="match_parent"        android:layout_height="wrap_content"   />      <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="功能需求:\n1.滑动下面的滑杆后,上面的进度条会同步        \n2.滑动到最大值时,最上面的进度条消失"   />   </LinearLayout>   //菜单Menu MenuComponentActivity.java 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.Button;import android.widget.Toast;/** * 测试菜单Menu * OptionMenu * 1.如何触发Menu的显示? *点击Menu键 *2.如何向Menu中添加MenuItem? *重写onCreateOptionsMenu方法 * 1.menu.add() * 2.菜单文件 *3.选择某个MenuItem时如何响应? * 重写onOptionsItemSelected方法 * * * * 1.如何触发Menu的显示? *长按某个视图,并View.setOnCreateContextListener(this) *2.如何向Menu中添加MenuItem? *重写onCreateContextMenu()方法,用menu.add()添加,(菜单文件方式也可以) *3.选择某个MenuItem时如何响应? *重写onContextItemSelected方法,根据ItemId响应 */public   class MenuComponentActivity extends Activity {private Button   btn_menu_cm;  @Overrideprotected void onCreate(Bundle   savedInstanceState)   {super.onCreate(savedInstanceState);setContentView(R.layout.activity_menu_component); btn_menu_cm   = (Button) findViewById(R.id.btn_menu_cm);//设置创建上下文菜单的监听btn_menu_cm.setOnCreateContextMenuListener(this);}//用来显示选型菜单的方法,向Menu中添加Item@Overridepublic boolean onCreateOptionsMenu(Menu menu) {//纯编码方式menu.add(0, 2, 0, "添加");menu.add(0, 3, 0, "删除");return   super.onCreateOptionsMenu(menu);}  // @Override// public boolean   onCreateOptionsMenu(Menu menu) {// //菜单文件的方式// //1.得到菜单加载器对象// MenuInflater menuInflater = getMenuInflater();// //2.加载菜单文件//   menuInflater.inflate(R.menu.option_menu, menu);// return   super.onCreateOptionsMenu(menu);// }  @Overridepublic boolean   onOptionsItemSelected(MenuItem item) {switch (item.getItemId()) {case 2://   case R.id.add:Toast.makeText(this, "添加", Toast.LENGTH_SHORT).show();break;case 3:// case   R.id.add:Toast.makeText(this, "删除", Toast.LENGTH_SHORT).show();break;}return   super.onOptionsItemSelected(item);}  @Overridepublic void   onCreateContextMenu(ContextMenu menu, View v,ContextMenuInfo menuInfo)   {super.onCreateContextMenu(menu, v, menuInfo);//添加菜单项menu.add(0,1,0,"添加");menu.add(0,2,0,"删除");} @Overridepublic boolean   onContextItemSelected(MenuItem item) {switch (item.getItemId()) {case   1:Toast.makeText(this, "添加", Toast.LENGTH_SHORT).show();break;case   2:Toast.makeText(this, "删除", Toast.LENGTH_SHORT).show();break;}return   super.onContextItemSelected(item);}}      activity_menu_component.xml <LinearLayout   xmlns:android="https://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical"   >      <Button        android:id="@+id/btn_menu_cm"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="@string/menu_btn"   />      <TextView        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="1.点击Menu显示选项菜单\n2.长按按钮显示上下文菜单"        android:textSize="30sp"/>   </LinearLayout>   菜单文件方式 option_menu.xml <?xml   version="1.0" encoding="utf-8"?><menu   xmlns:android="https://schemas.android.com/apk/res/android"   >      <item        android:id="@+id/add"        android:title="添加2"/>    <item        android:id="@+id/del"        android:title="删除2"/>  </menu>    

本文由职坐标整理并发布，希望对同学们有所帮助。了解更多详情请关注职坐标移动开发之Android频道！