Android常用控件

下拉列表

代码如下：

final String[] dataSource = new String[]{"Item 1", "Item 2", "Item 3"};
        Spinner s = (Spinner) findViewById(R.id.spinner);
        s.setAdapter(new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, dataSource));
        s.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                System.out.println("用户的选择是："+dataSource[position]);
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {

            }
        });

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日期选择

代码：

        final Calendar c = Calendar.getInstance();

        final Button btnChooseDte = (Button) findViewById(R.id.btnChooseDate);
        btnChooseDte.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new DatePickerDialog(ChooseADate.this, new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                        String theDate = String.format("%d-%d-%d", year, monthOfYear + 1, dayOfMonth);
                        System.out.println(theDate);//手机App选择4月，系统会输出3，所以要+1
                        btnChooseDte.setText(theDate);
                    }
                },c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH)).show();//c.get(Calendar.MONTH)实际会比月份小1
            }
        });
    }

-------------------------------------------------------------------------------------------------------------------------------------------

时间选择

  final Button btnChooseTime = (Button) findViewById(R.id.btnChooseTime);
        btnChooseTime.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                new TimePickerDialog(ChooseTime.this, new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
                        String theTime = String.format("%d:%d",hourOfDay,minute);
                        System.out.println(theTime);
                        btnChooseTime.setText(theTime);
                    }
                },0,0,true).show();
            }
        });

-------------------------------------------------------------------------------------------------------------------

单项选择

代码

xml中主要控件是RadioGroup和RadioButton

final RadioButton rbA = (RadioButton) findViewById(R.id.rbA);
findViewById(R.id.btnSubmit).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (rbA.isChecked()){
                    Toast.makeText(SingleChoose.this,"所选是正确的",Toast.LENGTH_SHORT).show();
                }else {
                    Toast.makeText(SingleChoose.this,"所选是错误的",Toast.LENGTH_SHORT).show();
                }
            }
        });

多项选择

public class MulChoose extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener {

    private CheckBox cb1, cb2, cb3, cb4;
    private TextView tvResult;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_mul_choose);

        cb1 = (CheckBox) findViewById(R.id.cb1);
        cb2 = (CheckBox) findViewById(R.id.cb2);
        cb3 = (CheckBox) findViewById(R.id.cb3);
        cb4 = (CheckBox) findViewById(R.id.cb4);
        tvResult = (TextView) findViewById(R.id.tvResult);

        cb1.setOnCheckedChangeListener(this);
        cb2.setOnCheckedChangeListener(this);
        cb3.setOnCheckedChangeListener(this);
        cb4.setOnCheckedChangeListener(this);
    }

    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        String str = "";
        if (cb1.isChecked()){
            str+=cb1.getText()+" ";
        }
        if (cb2.isChecked()){
            str+=cb2.getText()+" ";
        }
        if (cb3.isChecked()){
            str+=cb3.getText()+" ";
        }
        if (cb4.isChecked()){
            str+=cb4.getText();
        }
        tvResult.setText(str);
    }
}

Toast

 Toast toast = Toast.makeText(MainActivity.this,"显示一个带有图片的Toast",Toast.LENGTH_LONG);
 ImageView imageView = new ImageView(MainActivity.this);
 imageView.setImageResource(R.mipmap.ic_launcher);
 toast.setView(imageView);
 toast.setGravity(Gravity.CENTER,0,500);
 toast.show();

Notification

public class MainActivity extends AppCompatActivity {

    public static final int NOTIFICATION_ID = 1200;
    private int counter = 0;
    private Button btn;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btn = (Button) findViewById(R.id.btn);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                counter++;
                NotificationCompat.Builder builder = new NotificationCompat.Builder(MainActivity.this);
                builder.setSmallIcon(R.mipmap.ic_launcher);//图标
                builder.setContentTitle("您有"+counter+"条短消息！");//主要标题
                builder.setContentText("123456789！");//消息主体
                Notification notification = builder.build();
                NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
                manager.notify(NOTIFICATION_ID, notification);//mID allows you to update the notification later on.
            }
        });
    }
}

自动完成输入框 AutoCompleteTextView：

 <AutoCompleteTextView
        android:id="@+id/autoCompleteTextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:completionThreshold="1"
        android:textColor="@android:color/black" />

    <MultiAutoCompleteTextView
        android:id="@+id/multiAutoCompleteTextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:completionThreshold="1"
        android:textColor="@android:color/black" />

android:completionThreshold="1"表示输入多少个字母开始提示。

 1 package com.zhang.autocompletetextview;
 2 
 3 import android.support.v7.app.AppCompatActivity;
 4 import android.os.Bundle;
 5 import android.widget.ArrayAdapter;
 6 import android.widget.AutoCompleteTextView;
 7 import android.widget.MultiAutoCompleteTextView;
 8 
 9 
10 public class MainActivity extends AppCompatActivity {
11 
12     private AutoCompleteTextView autoCompleteTextView;
13     private MultiAutoCompleteTextView multiAutoCompleteTextView;
14     private ArrayAdapter<String> autoAdapter,multiAutoAdapter;//adapter是一样的
15     private String[] strs = new String[]{
16             "Hello",
17             "Hello Java",
18             "Hello C++",
19             "Hello Android"};
20 
21     @Override
22     protected void onCreate(Bundle savedInstanceState) {
23         super.onCreate(savedInstanceState);
24         setContentView(R.layout.activity_main);
25 
26         autoAdapter = new ArrayAdapter<>(this, R.layout.simple_dropdown_item,strs);
27         autoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView);
28         autoCompleteTextView.setAdapter(autoAdapter);
29 
30         multiAutoAdapter = new ArrayAdapter<>(this, R.layout.simple_dropdown_item, strs);
31         multiAutoCompleteTextView = (MultiAutoCompleteTextView) findViewById(R.id.multiAutoCompleteTextView);
32         multiAutoCompleteTextView.setTokenizer(new MultiAutoCompleteTextView.CommaTokenizer());
33         multiAutoCompleteTextView.setAdapter(multiAutoAdapter);
34 
35 
36     }
37 }

ProgressBar：

 <ProgressBar
        style="?android:attr/progressBarStyleLarge"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/progressBar1" />

    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/progressBar2" />

    <ProgressBar
        style="?android:attr/progressBarStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/progressBar3" />

    <ProgressBar
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/progressBar"
        android:indeterminate="false" />

 1 package com.zhang.uicontrols;
 2 
 3 import android.support.v7.app.AppCompatActivity;
 4 import android.os.Bundle;
 5 import android.widget.ProgressBar;
 6 
 7 import java.util.Timer;
 8 import java.util.TimerTask;
 9 
10 public class AtyUsingProgressBar extends AppCompatActivity {
11 
12     private ProgressBar progressBar;
13 
14     @Override
15     protected void onCreate(Bundle savedInstanceState) {
16         super.onCreate(savedInstanceState);
17         setContentView(R.layout.activity_aty_using_progress_bar);
18 
19         progressBar = (ProgressBar) findViewById(R.id.progressBar);
20 
21 
22 //        progressBar.setMax(100);
23 //
24 //        progressBar.setProgress(50);
25 
26         new Thread(new Runnable() {
27             @Override
28             public void run() {
29 
30                 int progressMax = progressBar.getMax();
31 
32                 while (progressMax != progressBar.getProgress()){
33                     int stepProgress = progressMax/10;
34                     int currentPro = progressBar.getProgress();
35                     progressBar.setProgress(currentPro+stepProgress);
36                     try {
37                         Thread.sleep(1000);
38                     } catch (InterruptedException e) {
39                         e.printStackTrace();
40                     }
41                 }
42             }
43         }).start();
44     }
45 
46     @Override
47     protected void onResume() {
48         super.onResume();
49 //        startTimer();
50     }
51 
52     @Override
53     protected void onPause() {
54         super.onPause();
55 //        stopTimer();
56     }
57 
58     private int progress = 0;
59 
60     public void startTimer() {
61         if (timer == null) {
62             timer = new Timer();
63             task = new TimerTask() {
64                 @Override
65                 public void run() {
66                     progress++;
67                     progressBar.setProgress(progress);
68                 }
69             };
70             timer.schedule(task, 1000, 1000);
71         }
72 
73     }
74 
75     public void stopTimer() {
76         if (timer != null) {
77             task.cancel();
78             timer.cancel();
79 
80             task = null;
81             timer = null;
82         }
83     }
84 
85     private Timer timer = null;
86     private TimerTask task = null;
87 }

SeekBar：

　　 <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Large Text"
        android:id="@+id/tvOut" />

    <SeekBar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/seekBar" />

 1 package com.zhang.uicontrols;
 2 
 3 import android.support.v7.app.AppCompatActivity;
 4 import android.os.Bundle;
 5 import android.widget.SeekBar;
 6 import android.widget.TextView;
 7 
 8 public class AtyUsingSeekBar extends AppCompatActivity {
 9 
10     private SeekBar seekBar;
11     private TextView tvOut;
12 
13     @Override
14     protected void onCreate(Bundle savedInstanceState) {
15         super.onCreate(savedInstanceState);
16         setContentView(R.layout.activity_aty_using_seek_bar);
17 
18         tvOut = (TextView) findViewById(R.id.tvOut);
19         seekBar = (SeekBar) findViewById(R.id.seekBar);
20         seekBar.setMax(100);
21 
22         seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
23             @Override
24             public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
25                 tvOut.setText(String.format("当前的进度为:%d",progress)+"%");
26             }
27 
28             @Override
29             public void onStartTrackingTouch(SeekBar seekBar) {
30 
31             }
32 
33             @Override
34             public void onStopTrackingTouch(SeekBar seekBar) {
35 
36             }
37         });
38     }
39 }

ProgressDialog：

 1 package com.zhang.uicontrols;
 2 
 3 import android.app.ProgressDialog;
 4 import android.support.v7.app.AppCompatActivity;
 5 import android.os.Bundle;
 6 import android.view.View;
 7 
 8 public class AtyUsingProgressDialog extends AppCompatActivity {
 9 
10     private ProgressDialog progressDialog;
11 
12     @Override
13     protected void onCreate(Bundle savedInstanceState) {
14         super.onCreate(savedInstanceState);
15         setContentView(R.layout.activity_aty_using_progress_dialog);
16 
17         findViewById(R.id.btnShowProgressDialog).setOnClickListener(new View.OnClickListener() {
18             @Override
19             public void onClick(View v) {
20                 progressDialog = ProgressDialog.show(AtyUsingProgressDialog.this, "加载中", "正在加载，请稍后");
21 
22                 new Thread(){
23                     @Override
24                     public void run() {
25                         super.run();
26                         try {
27                             sleep(3000);
28                             progressDialog.dismiss();
29 
30                         } catch (InterruptedException e) {
31                             e.printStackTrace();
32                         }
33                     }
34                 }.start();
35             }
36         });
37     }
38 }

RatingBar：

　　　<RatingBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/ratingBar"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />

 1 package com.zhang.uicontrols;
 2 
 3 import android.support.v7.app.AppCompatActivity;
 4 import android.os.Bundle;
 5 import android.widget.RatingBar;
 6 import android.widget.Toast;
 7 
 8 public class AtyUsingRatingBar extends AppCompatActivity {
 9 
10     private RatingBar ratingBar;
11 
12     @Override
13     protected void onCreate(Bundle savedInstanceState) {
14         super.onCreate(savedInstanceState);
15         setContentView(R.layout.activity_aty_using_rating_bar);
16 
17         ratingBar = (RatingBar) findViewById(R.id.ratingBar);
18         ratingBar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
19             @Override
20             public void onRatingChanged(RatingBar ratingBar, float rating, boolean fromUser) {
21                 Toast.makeText(getApplicationContext(),"评价为"+rating,Toast.LENGTH_SHORT).show();
22             }
23         });
24 
25     }
26 }

ImageSwitcher：

　　 <ImageSwitcher
        android:id="@+id/imageSwitcher"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true" />

 1 package com.jikexueyuan.uicontrols;
 2 
 3 import android.support.v7.app.AppCompatActivity;
 4 import android.os.Bundle;
 5 import android.view.View;
 6 import android.view.animation.AnimationUtils;
 7 import android.widget.ImageSwitcher;
 8 import android.widget.ImageView;
 9 import android.widget.ViewSwitcher;
10 
11 public class AtyUsingImageSwitcher extends AppCompatActivity {
12 
13     private ImageSwitcher imageSwitcher;
14     private boolean showImg1 = true;
15 
16     @Override
17     protected void onCreate(Bundle savedInstanceState) {
18         super.onCreate(savedInstanceState);
19         setContentView(R.layout.activity_aty_using_image_switcher);
20 
21         imageSwitcher = (ImageSwitcher) findViewById(R.id.imageSwitcher);
22         imageSwitcher.setFactory(new ViewSwitcher.ViewFactory() {
23             @Override
24             public View makeView() {
25                 return new ImageView(AtyUsingImageSwitcher.this);
26             }
27         });
28 
29         //动画效果
30         imageSwitcher.setInAnimation(AnimationUtils.loadAnimation(AtyUsingImageSwitcher.this,android.R.anim.fade_in));
31         imageSwitcher.setOutAnimation(AnimationUtils.loadAnimation(AtyUsingImageSwitcher.this, android.R.anim.fade_out));
32 
33         imageSwitcher.setOnClickListener(new View.OnClickListener() {
34             @Override
35             public void onClick(View v) {
36                 showImg1 = !showImg1;
37                 showCurrentImg();
38             }
39         });
40         showCurrentImg();
41     }
42 
43     private void showCurrentImg(){
44         if (showImg1){
45             imageSwitcher.setImageResource(R.drawable.image_a);
46         } else {
47             imageSwitcher.setImageResource(R.drawable.image_b);
48         }
49     }
50 }

posted @ 2016-11-17 18:45 changchou 阅读(176) 评论(0) 编辑收藏举报

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Android常用控件

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