Checkbox ImageView AdapterView 密码显示

AdapterView

自定义Adapter

这里用到了MVC设计模式，先新建一个包model，在里面新建一个类Student，主要用于存放数据。
在新建一个包adapter，在里面新建一个类StudentAdapter,主要用于控制。
V表示布局，在layout中。
最后在活动中写入相应代码。

Student类

package com.example.administrator.myweidget.model;/** * Created by Administrator on 2015/8/24. */public class Student {    private String name;    private String age;    private String sex;    private String hobby;    private int img;    public Student(String name,String age,String sex,String hobby,int img){        this.name = name;        this.age = age;        this.sex = sex;        this.hobby = hobby;        this.img = img;    }    public String getName() {        return name;    }    public String getAge() {        return age;    }    public String getSex() {        return sex;    }    public String getHobby() {        return hobby;    }    public int getImg() {        return img;    }    public void setName(String name) {        this.name = name;    }    public void setAge(String age) {        this.age = age;    }    public void setSex(String sex) {        this.sex = sex;    }    public void setHobby(String hobby) {        this.hobby = hobby;    }    public void setImg(int img) {        this.img = img;    }}

StudentAdapter类

package com.example.administrator.myweidget.adapter;import android.text.Layout;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import com.example.administrator.myweidget.R;import com.example.administrator.myweidget.model.Student;import java.util.List;/** * Created by Administrator on 2015/8/24. */public class StudentAdapter extends BaseAdapter{    private List<Student> mData;    private LayoutInflater mInflater;    public StudentAdapter(LayoutInflater inflater,List<Student> data){        mInflater = inflater;        mData = data;    }    @Override    public int getCount() {        //得到listview将要显示的数据的条数        return mData.size();    }    @Override    public Object getItem(int position) {        //返回索引        return position;    }    @Override    public long getItemId(int position) {        //返回索引        return position;    }    public View getView(int position,View convertView,ViewGroup parent){        View view = mInflater.inflate(R.layout.simple_adapter,null);        Student student = mData.get(position);        ImageView imageview = (ImageView) view.findViewById(R.id.image_photo);        TextView textview_name = (TextView) view.findViewById(R.id.textview_name);        TextView textview_age = (TextView) view.findViewById(R.id.textview_age);        TextView textview_sex = (TextView) view.findViewById(R.id.textview_sex);        TextView textview_hobby = (TextView) view.findViewById(R.id.textview_hobby);        textview_name.setText(student.getName());        textview_age.setText(student.getAge());        textview_sex.setText(student.getSex());        textview_hobby.setText(student.getHobby());        imageview.setImageResource(student.getImg());        return view;    }}

布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal" android:layout_width="match_parent"    android:layout_height="match_parent"    android:layout_margin="15dp"    android:gravity="center_vertical">    <ImageView        android:id="@+id/image_photo"        android:layout_width="100dp"        android:layout_height="100dp" />    <TextView        android:id="@+id/textview_name"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="姓名"/>    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:orientation="vertical"        android:layout_margin="15dp">        <TextView            android:id="@+id/textview_age"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="年龄"/>        <TextView            android:id="@+id/textview_sex"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:text="性别"/>    </LinearLayout>    <TextView        android:id="@+id/textview_hobby"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="爱好"/></LinearLayout>

Activity中的代码

protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.list_view);        mListView = (ListView) findViewById(R.id.listview);        LayoutInflater inflater = getLayoutInflater();        initData();        StudentAdapter adapter = new StudentAdapter(inflater,mData);        mListView.setAdapter(adapter);    }    private void initData() {        mData = new ArrayList<>();        Student zhangsan = new Student("李易峰","18","男","爱好打篮球",R.mipmap.li);        Student lisi = new Student("Anglebaby","22","女","爱好吃饭",R.mipmap.angle);        Student wangwu = new Student("李易峰","20","男","爱好音乐",R.mipmap.li);        Student zhaoliu = new Student("唐嫣","21","女","喜欢唱歌",R.mipmap.tang);        Student maqi = new Student("杨颖","26","女","素颜",R.mipmap.angle);        mData.add(zhangsan);        mData.add(lisi);        mData.add(wangwu);        mData.add(zhaoliu);        mData.add(maqi);    }

Checkbox

<LinearLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content">        <RadioGroup            android:layout_width="wrap_content"            android:layout_height="wrap_content">            <EditText                android:layout_width="match_parent"                android:layout_height="wrap_content" />            <CheckBox                android:id="@+id/isshowpassword"                android:password="true"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:text="显示密码"/>            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="爱好"/>            <CheckBox                android:id="@+id/checkbox_swim"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="游泳"/>            <CheckBox                android:id="@+id/checkbox_pingpang"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="乒乓球"/>            <CheckBox                android:id="@+id/checkbox_ride"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="骑车"/>            <CheckBox                android:id="@+id/checkbox_study"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="游泳"/>        </RadioGroup>    </LinearLayout>

protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mCheckBoxSwim = (CheckBox) findViewById(R.id.checkbox_swim);        mCheckBoxPingpang = (CheckBox) findViewById(R.id.checkbox_pingpang);        mCheckBoxRide = (CheckBox) findViewById(R.id.checkbox_ride);        mCheckBoxStudy = (CheckBox) findViewById(R.id.checkbox_study);        mCheckBoxIsShowPassword = (CheckBox) findViewById(R.id.isshowpassword);        mCheckBoxIsShowPassword.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {            @Override            public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {                if (isChecked) {                    mCheckBoxIsShowPassword.setTransformationMethod(null);                } else {                    mCheckBoxIsShowPassword.setTransformationMethod(new PasswordTransformationMethod());                }            }        });

ImageView

属性有：src 没有被拉伸
background 被拉伸
scaleType ：center、fitstart、inside、tint 等

增加透明度 减少透明度

protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_image);        mAdd = (Button) findViewById(R.id.add);        mSub = (Button) findViewById(R.id.sub);        mAdd.setOnClickListener(this);        mSub.setOnClickListener(this);        mImageView = (ImageView) findViewById(R.id.image);        mImageView.setImageResource(R.mipmap.angle);    }//    @Target(Build.VERSION_CODES.JELLY_BEAN)    @Override    public void onClick(View view) {        int code = Build.VERSION.SDK_INT;        switch (view.getId()){            case R.id.add:                mAlphaCount+=10;                Log.d("versioncode","当前版本号"+code);                if (code<16){                    mImageView.setAlpha(mAlphaCount);                }else{                    mImageView.setImageAlpha(mAlphaCount);                }                break;            case R.id.sub:                mAlphaCount-=10;                if (code>16){                    mImageView.setAlpha(mAlphaCount);                }else{                    mImageView.setImageAlpha(mAlphaCount);                }                break;            default:                break;        }    }

<ImageView        android:id="@+id/image"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:background="@mipmap/he" />    <Button        android:id="@+id/add"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="增加透明度"/>    <Button        android:id="@+id/sub"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="减少透明度"/>

是否显示密码

public class MainActivity extends Activity {    private TextView mTextView;    private Button btn;    private EditText mEditText;    private RadioGroup mRadioGroup;    private Button mBtnCommit;    private CheckBox mCheckBoxSwim;    private CheckBox mCheckBoxPingpang;    private CheckBox mCheckBoxRide;    private CheckBox mCheckBoxStudy;    private CheckBox mCheckBoxIsShowPassword;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mEditText = (EditText) findViewById(R.id.editpassword);        mCheckBoxSwim = (CheckBox) findViewById(R.id.checkbox_swim);        mCheckBoxPingpang = (CheckBox) findViewById(R.id.checkbox_pingpang);        mCheckBoxRide = (CheckBox) findViewById(R.id.checkbox_ride);        mCheckBoxStudy = (CheckBox) findViewById(R.id.checkbox_study);        mCheckBoxIsShowPassword = (CheckBox) findViewById(R.id.isshowpassword);        mCheckBoxIsShowPassword.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {            @Override            public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {                if (isChecked) {                    mEditText.setTransformationMethod(null);                } else {                    mEditText.setTransformationMethod(new PasswordTransformationMethod());                }            }        });

<RadioGroup            android:layout_width="wrap_content"            android:layout_height="wrap_content">            <EditText                android:id="@+id/editpassword"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:password="true"/>            <CheckBox                android:id="@+id/isshowpassword"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:text="显示密码"/>