起始页+fragment底部导航栏+ViewPager滑动切换+个人信息界面示例安卓app

上篇写了起始页、底部导航栏和滑动切换界面，这篇写的是个人信息界面的一个小示例。

如果想看上篇笔记，传送门在这里~~

android app安卓应用实例：起始页+fragment底部导航栏+ViewPager滑动切换+个人信息界面（一）

来！
先上效果图~

参考了网上一些大佬的代码和界面，简单地做了一个安卓app的个人信息的基本界面，基于Android studio。

这里先感谢写Android菜鸟教程的那位大哥，在他的教程里我学到了很多东西，我把这篇写下来，一来想写个笔记，二来希望能和大家一起交流学习，如有错误，还请多多指教~

=============================
个人信息这里包括 昵称、性别、年龄、身高、体重
需要自己准备的图片：一张你喜欢的头像，一张箭头符号图片

先来个布局界面~

fg_info.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView  xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg_white">
<LinearLayout
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/bg_white"
android:weightSum="1">

<com.example.asus.huadong.CircleImageView
android:layout_width="80dp"
android:layout_height="120dp"
android:src="@mipmap/myprofile"
app:type="circle"
android:layout_gravity="center"
android:layout_marginBottom="10dp"
android:layout_marginTop="10dp" />
<View
style="@style/BigDivider"/>

<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
style="@style/text_item"
android:text="佛性人生c"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="40dp"
android:id="@+id/my_name" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/setting_arrow"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="20dp" />

<Button
style="@style/info_item"
android:text="昵称"
android:id="@+id/myname" />

</FrameLayout>
<View
style="@style/BigDivider"/>

<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
style="@style/text_item"
android:text="男"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="40dp"
android:id="@+id/my_gender" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/setting_arrow"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="20dp" />

<Button
style="@style/info_item"
android:text="性别"
android:id="@+id/mygender" />

</FrameLayout>
<View
style="@style/HorizonTalDivider"/>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
style="@style/text_item"
android:text="0 岁"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="40dp"
android:id="@+id/my_old" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/setting_arrow"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="20dp" />

<Button
style="@style/info_item"
android:text="年龄"
android:id="@+id/myold" />

</FrameLayout>

<View
style="@style/HorizonTalDivider"/>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
style="@style/text_item"
android:text="50 厘米"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="40dp"
android:id="@+id/my_tall" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/setting_arrow"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="20dp" />

<Button
style="@style/info_item"
android:text="身高"
android:id="@+id/mytall" />

</FrameLayout>

<View
style="@style/HorizonTalDivider"/>
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
style="@style/text_item"
android:text="10 公斤"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="40dp"
android:id="@+id/my_weight" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/setting_arrow"
android:layout_gravity="center_vertical|right"
android:layout_marginRight="20dp" />
<Button
style="@style/info_item"
android:text="体重"
android:id="@+id/myweight"/>
</FrameLayout>

</LinearLayout>
</ScrollView>

上面用到的CircleImageView的代码，就是一个圆形图像，作为头像会比较好看，感谢写Android菜鸟教程的大哥给的示例，他是这么写的：

CircleImageView.java

package com.example.asus.huadong;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.RectF;
import android.graphics.Xfermode;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.widget.ImageView;

import java.lang.ref.WeakReference;

public class CircleImageView extends ImageView {

private Paint mPaint;
private Xfermode mXfermode = new PorterDuffXfermode(PorterDuff.Mode.DST_IN);
private Bitmap mMaskBitmap;
private WeakReference<Bitmap> mWeakBitmap;

//图片相关的属性
private int type;                           //类型，圆形或者圆角
public static final int TYPE_CIRCLE = 0;
public static final int TYPE_ROUND = 1;
private static final int BODER_RADIUS_DEFAULT = 10;     //圆角默认大小值
private int mBorderRadius;                  //圆角大小

public CircleImageView(Context context) {
this(context, null);
}

public CircleImageView(Context context, AttributeSet attrs) {
super(context, attrs);
mPaint = new Paint();
mPaint.setAntiAlias(true);
//取出attrs中我们为View设置的相关值
TypedArray tArray = context.obtainStyledAttributes(attrs, R.styleable.CircleImageView);
mBorderRadius = tArray.getDimensionPixelSize(R.styleable.CircleImageView_Radius, BODER_RADIUS_DEFAULT);
type = tArray.getInt(R.styleable.CircleImageView_type, TYPE_CIRCLE);
tArray.recycle();
}

public CircleImageView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (type == TYPE_CIRCLE) {
int width = Math.min(getMeasuredWidth(), getMeasuredHeight());
setMeasuredDimension(width, width);    //设置当前View的大小
}
}

@Override
protected void onDraw(Canvas canvas) {

//在缓存中取出bitmap
Bitmap bitmap = mWeakBitmap == null ? null : mWeakBitmap.get();
if (bitmap == null || bitmap.isRecycled()) {
//获取图片宽高
Drawable drawable = getDrawable();
int width = drawable.getIntrinsicWidth();
int height = drawable.getIntrinsicHeight();

if (drawable != null) {
bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
Canvas drawCanvas = new Canvas(bitmap);
float scale = 1.0f;
if (type == TYPE_ROUND) {
scale = Math.max(getWidth() * 1.0f / width, getHeight()
* 1.0f / height);
} else {
scale = getWidth() * 1.0F / Math.min(width, height);
}
//根据缩放比例，设置bounds，相当于缩放图片了
drawable.setBounds(0, 0, (int) (scale * width),
(int) (scale * height));

drawable.draw(drawCanvas);
if (mMaskBitmap == null || mMaskBitmap.isRecycled()) {
mMaskBitmap = getBitmap();
}

mPaint.reset();
mPaint.setFilterBitmap(false);
mPaint.setXfermode(mXfermode);

//绘制形状
drawCanvas.drawBitmap(mMaskBitmap, 0, 0, mPaint);

//bitmap缓存起来，避免每次调用onDraw，分配内存
mWeakBitmap = new WeakReference<Bitmap>(bitmap);

//绘制图片
canvas.drawBitmap(bitmap, 0, 0, null);
mPaint.setXfermode(null);

}
}
if (bitmap != null) {
mPaint.setXfermode(null);
canvas.drawBitmap(bitmap, 0.0f, 0.0f, mPaint);
return;
}
}

//缓存Bitmap，避免每次OnDraw都重新分配内存与绘图
@Override
public void invalidate() {
mWeakBitmap = null;
if (mWeakBitmap != null) {
mMaskBitmap.recycle();
mMaskBitmap = null;
}
super.invalidate();
}

//定义一个绘制形状的方法

private Bitmap getBitmap() {
Bitmap bitmap = Bitmap.createBitmap(getWidth(), getHeight(),
Bitmap.Config.ARGB_8888);

Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);   //抗锯齿
paint.setColor(Color.BLACK);
if (type == TYPE_ROUND) {
canvas.drawRoundRect(new RectF(0, 0, getWidth(), getHeight()),
mBorderRadius, mBorderRadius, paint);
} else {
canvas.drawCircle(getWidth() / 2, getWidth() / 2, getWidth() / 2, paint);
}
return bitmap;
}
}

fg_info.xml里还用到了一些图片，自己找照片放到mipmap里就ok，color也自定义加到values里的color里就ok，然后用到的styles的代码我贴一下，大家也可以自定义，加到styles文件里就行。

<style name="HorizonTalDivider">
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">1dp</item>
<item name="android:layout_marginLeft">10dp</item>
<item name="android:layout_marginRight">10dp</item>
<item name="android:background">@color/div_white</item>
</style>
<style name="BigDivider">
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">8dp</item>
<item name="android:background">@color/div_white</item>
</style>

重点来咯

MyInfo.java

package com.example.asus.huadong;

import android.app.AlertDialog;
import android.support.v4.app.Fragment;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ScrollView;
import android.widget.TextView;

public class MyInfo extends Fragment {

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fg_info,null);
return view;
}
private ScrollView myscroll;
private Button changename;
private Button chosegender;
private Button choseold;
private Button chosetall;
private Button choseweight;
private String strname;
private SPUtils shh;
private Context mContext;
private Context myContext;
private AlertDialog alert = null;
private AlertDialog.Builder builder = null;

@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
myContext = getActivity();
mContext = getActivity().getApplicationContext();
bindViews();
}

private void bindViews() {
myscroll = (ScrollView) getActivity().findViewById(R.id.myscroll);
//mname= (EditText)getActivity().findViewById(R.id.edname);
changename = (Button)getActivity().findViewById(R.id.myname);
changename.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(myContext,AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);
builder.setTitle("昵称");
// 通过LayoutInflater来加载一个xml的布局文件作为一个View对象
View view = LayoutInflater.from(myContext).inflate(
R.layout.dialog, null);
// 设置我们自己定义的布局文件作为弹出框的Content
builder.setView(view);

final EditText mname = (EditText) view.findViewById(R.id.edname);

builder.setPositiveButton("确定",
new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
//确定操作的内容
strname=mname.getText().toString();
shh.put(mContext, "name", strname);
TextView myn=(TextView) getActivity().findViewById(R.id.my_name);
myn.setText("" + shh.get(mContext, "name", "佛系人生c"));
}
});

builder.setNegativeButton("取消",
new DialogInterface.OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
});
builder.show();
}
});
chosegender = (Button)getActivity().findViewById(R.id.mygender);
chosegender.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
final String[] gender = new String[]{"男", "女"};
alert = null;
builder = new AlertDialog.Builder(myContext,AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);
int i;
if(shh.get(mContext, "gender", "男")=="男")
{
i=0;
}
else{
i=1;
}
alert = builder.setTitle("性别")
.setSingleChoiceItems(gender, i, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//Toast.makeText(getActivity(), "你的性别是" + gender[which], Toast.LENGTH_SHORT).show();
shh.put(mContext, "gender", gender[which]);
TextView myg = (TextView) getActivity().findViewById(R.id.my_gender);
myg.setText("" + shh.get(mContext, "gender", "男"));
alert.dismiss();
}
}).create();
alert.show();
}
});

choseold = (Button)getActivity().findViewById(R.id.myold);
choseold.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int size = 151;
// 定义数组
final String[] old = new String[size];
for(int x = 0; x < 151; x = x+1) {
old[x]=x+" 岁";
}
int o= (int)(shh.get(mContext, "oldwhich", 0));
alert = null;
builder = new AlertDialog.Builder(myContext,AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);
builder.setView(myscroll);
alert = builder.setTitle("年龄")
.setSingleChoiceItems(old, o, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
shh.put(mContext, "old", old[which]);
shh.put(mContext, "oldwhich", which);
TextView myo = (TextView) getActivity().findViewById(R.id.my_old);
myo.setText("" + shh.get(mContext, "old", "0 岁"));
alert.dismiss();
}
}).create();
alert.show();
}
});

chosetall = (Button)getActivity().findViewById(R.id.mytall);
chosetall.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int size = 201;
// 定义数组
final String[] tall = new String[size];
for(int x = 50; x < 251; x = x+1) {
tall[x-50]=x+" 厘米";
}
int j= (int)(shh.get(mContext, "tallwhich", 0));
alert = null;
builder = new AlertDialog.Builder(myContext,AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);
builder.setView(myscroll);
alert = builder.setTitle("身高")
.setSingleChoiceItems(tall, j, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Toast.makeText(getActivity(), "你的身高是" + tall[which], Toast.LENGTH_SHORT).show();
shh.put(mContext, "tall", tall[which]);
shh.put(mContext, "tallwhich", which);
TextView myt = (TextView) getActivity().findViewById(R.id.my_tall);
myt.setText("" + shh.get(mContext, "tall", "50 厘米"));
alert.dismiss();
}
}).create();
alert.show();
}
});
choseweight = (Button)getActivity().findViewById(R.id.myweight);
choseweight.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int size = 241;
// 定义数组
int k= (int)(shh.get(mContext, "weightwhich", 0));
final String[] weight = new String[size];
for (int x = 10; x < 251; x = x + 1) {
weight[x - 10] = x + " 公斤";
}
alert = null;
builder = new AlertDialog.Builder(myContext,AlertDialog.THEME_DEVICE_DEFAULT_LIGHT);
builder.setView(myscroll);
alert = builder.setTitle("体重")
.setSingleChoiceItems(weight, k, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Toast.makeText(getActivity(), "你的体重是" + weight[which], Toast.LENGTH_SHORT).show();
shh.put(mContext, "weight", weight[which]);
shh.put(mContext, "weightwhich", which);
TextView myw = (TextView) getActivity().findViewById(R.id.my_weight);
myw.setText("" + shh.get(mContext, "weight", "10 公斤"));
alert.dismiss();
}
}).create();
alert.show();
}
});
}
@Override
public void onStart() {
super.onStart();
TextView myn=(TextView) getActivity().findViewById(R.id.my_name);
myn.setText("" + shh.get(mContext, "name", "佛系人生c"));
TextView myo = (TextView) getActivity().findViewById(R.id.my_old);
myo.setText("" + shh.get(mContext, "old", "0 岁"));
TextView myg=(TextView) getActivity().findViewById(R.id.my_gender);
TextView myt=(TextView) getActivity().findViewById(R.id.my_tall);
TextView myw=(TextView) getActivity().findViewById(R.id.my_weight);
myg.setText(""+shh.get(mContext, "gender","男"));
myt.setText(""+shh.get(mContext, "tall","50 厘米"));
myw.setText(""+shh.get(mContext, "weight","10 公斤"));
}
}

上面用到了SharedPreference工具类是那位写Android入门教程的大哥在教程里提供的，详细可以看一下他的讲解，百度一下Android菜鸟教程就有啦，是这样的：

SPUtils.java

package com.example.asus.huadong;

import android.content.Context;
import android.content.SharedPreferences;

import java.util.Map;

public class SPUtils {
public static final String FILE_NAME = "my_sp";
public static void put(Context context, String key, Object obj) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
if (obj instanceof Boolean) {
editor.putBoolean(key, (Boolean) obj);
} else if (obj instanceof Float) {
editor.putFloat(key, (Float) obj);
} else if (obj instanceof Integer) {
editor.putInt(key, (Integer) obj);
} else if (obj instanceof Long) {
editor.putLong(key, (Long) obj);
} else {
editor.putString(key, (String) obj);
}
editor.commit();
}

/**
* 获取指定数据
*/
public static Object get(Context context, String key, Object defaultObj) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
if (defaultObj instanceof Boolean) {
return sp.getBoolean(key, (Boolean) defaultObj);
} else if (defaultObj instanceof Float) {
return sp.getFloat(key, (Float) defaultObj);
} else if (defaultObj instanceof Integer) {
return sp.getInt(key, (Integer) defaultObj);
} else if (defaultObj instanceof Long) {
return sp.getLong(key, (Long) defaultObj);
} else if (defaultObj instanceof String) {
return sp.getString(key, (String) defaultObj);
}
return null;
}

/**
* 删除指定数据
*/
public static void remove(Context context, String key) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.remove(key);
editor.commit();
}

/**
* 返回所有键值对
*/
public static Map<String, ?> getAll(Context context) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
Map<String, ?> map = sp.getAll();
return map;
}

/**
* 删除所有数据
*/
public static void clear(Context context) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.clear();
editor.commit();
}

/**
* 检查key对应的数据是否存在
*/
public static boolean contains(Context context, String key) {
SharedPreferences sp = context.getSharedPreferences(FILE_NAME, context.MODE_PRIVATE);
return sp.contains(key);
}
}

对话框示例效果图，可以修改昵称，性别、年龄、体重。
第一次使用默认值，第一次修改后的数据将保存在共享偏好中，下次打开就可以默认读取共享偏好里的数据啦~
适合用于个人信息，那种基本不变的信息存储，应该就像默认登陆一样的感觉吧哈哈

emmmmm大概就是这样吧，如果有哪里写错了，请多多指教，我这边运行是ok的，笔记完成！！！