本文章来源于B站UP主(天哥在奔跑)的视频教学

线性布局LinearLayout

常用属性

android:id 表示id
android:layout_width 宽度
- wrap_content:包含内容
- match_parent:匹配父控件
- 200dp:200个单位
android:layout_height 高度
android:background 背景
- 000000:黑色
android:layout_margin 外边距
- android:layout_marginButtom
- android:layout_marginTop
- android:layout_marginRight
- android:layout_marginLeft
- android:layout_marginStart
- android:layout_marginEnd
android:layout_padding 内边距
- android:layout_paddingButtom
- android:layout_paddingTop
- android:layout_paddingRight
- android:layout_paddingLeft
- android:layout_paddingStart
- android:layout_paddingEnd
android:orientation 布局方向
- vertical:垂直方向
- horizontal:水平方向
android:gravity 对齐方式
- buttom:底部对齐
- top顶部对齐
- center:居中
android:weight 权重

相对布局RelativeLayout

常用属性

android:layout_toLeftOf
android:layout_toRightOf
android:layout_alignButtom
android:layout_alignParentButtom
android:layout_below

TextView

常用属性

android:text 文字内容
android:textColot 文字颜色
android:textSize 文字大小
- 24sp:文字大小单位为sp
android:maxLines 限制最大行数
android:ellipsize 不够位置则显示...
- marquee 跑马灯效果
android:marqueeRepeatLimit 循环次数
- marquee_forever 一直显示
android:drawableRight 右边显示图标
设置中划线
- TextView.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG)
- TextView.getPaint().setAntiAlias(true) 抗锯齿
设置下划线
- TextView.getPaint().setFlags(Paint.UNDERLINE_TEXT_FLAG)
android:focusable 获得焦点
android:focusableInTouchMode

Button

自定义背景形状

 设置形状     设置颜色    设置圆角     描边

自定义点击效果

     按下时的效果                                                     没有按下时的效果

EditText

常用属性

android:texxtAllCaps="false" 取消全部字母大写
android:hint="XXX" 默认提示字符
android:inputType 输入类型
- textPassword 暗文密码
- number 数字
内容改变监听器

EditText.addTextChangedListener(new TextWatcher() {    @Override    public void beforeTextChanged(CharWequence s, int start, int count, in after) {        // do something...    }    @Override    public void onTextChanged(CharSequence s, int start, int before, int count) {        // do something...    }    @Override    public void afterTextChanged(Editable s) {        // do something...    }})

RadioButton

常用属性

单选框

...

android:checked="true" 默认选中
android:button="@null" 取消默认样式
设置监听事件

RadioGrop.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {    @Override    public void onCheckedChanged(RadioGroup group,  @IdRes int checkedId) {        RadioButton radioButton = group.findViewById(checkedId);        // do something...    }})

CheckBox复选框

常用属性

ImageView

常用属性

android:src="" 图片内容
android:scaleType 缩放形式
- fitXY 撑满控件，宽高比可能发生改变
- fitCenter 保持宽高比缩放，直至能够完全显示
- centerCrop 保持宽高比缩放，直至完全覆盖控件，裁剪显示

加载网络图片

引入第三方jar包 (github:bumptech/glide)

imageview = (ImageView) findViewById(R.id.iv_4);Glide.with(this).load("http.....").into(imageview);

ListView列表视图

public class MyListAdapter extends BaseAdapter {    private Context mContext;    private LayoutInflatter mLayoutInflater;        public MyListAdapter(Context context) {        this.mContext = context;        mLayoutInflater = LayoutInflater.from(context);    }        @Override    public int getCount() {        return 10;    }        @Override    public Object getItem(int position) {        return null    }        @Override    public long getItemId(int position) {        return 0;    }        static class ViewHolder {        public ImageView imageView;        public TextView tvTitile, tvTime, tvContent;    }        @Override    public View getView(int position, View convertView, ViewGroup parent) {        ViewHolder holder = null;        if(convertView == null) {            convertView = mLayoutInflater.inflate(R.layout.layout_list_item, null);            holder = new ViewHolder();            holder.imageView = convertView.findViewById(R.id.iv);            holder.tvTitile = convertView.findViewById(R.id.tv_titile);            holder.tvTime = convertView.findViewById(R.id.tv_time);            holder.tvContent = convertView.findViewById(R.id.tv_content);            convertView.setTay(holder);        }        else        {            holder = (ViewHolder) convertView.getTag();        }        //给控件赋值        holder.tvTitle.setText("XXXX");        holder.tvTime.setText("XXXX");        holder.tvContent.setText("XXXX");        Glide.with(mContext).load("").into(holder.imageView);        return convertView;    }}

ListView.setAdapter(new MyListAdapter(ListViewActivity.tthis));ListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {    @Override    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {        Toast.makeText(GridViewActivity.this, "点击 pos"+position, Toast.LENGTH_SHORT).show();    }})ListView.setOnItemLongClickLIstener();

GridView网格视图

常用属性

android:numColumns 显示的列数
android:gorizontalSpacing 垂直间距
android:verticalSpacing 水平间距

ScrollView & HorizontalScrollView

常用属性

ScrollView 垂直滚动视图
HorizontalScrollView水平滚动视图
xml

                ......

RecyclerView

常用属性

引入包
在build.gradle中加入

dependencies {    compile 'com.android.support:design:25.3.1'}

布局文件

代码

垂直滚动布局

// Adapterpublic class LinearAdapter extends RecyclerView.Adapter {    private Context mContext;    private OnItemClickListener mlistener;        public LinearAdapter(Context context, OnItemClickListener listener) {        this.mContext = context;        this.mlistener = listener;    }    @Override    public LinearAdapter.LinearViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        return new LinearViewHolder(LayoutInflater.from(mContext).inflate(R.layout.XXX, parent, false));    }        @Override    public void onBindViewHolder(LinearAdapter.LinearViewHolder holder, int position) {        holder.textView.setText("Hello World!!!");        holder.itemView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                mlistener.onClick(position);            }        });    }        @Override    public int getItemCount() {        return 30;    }        class LinearViewHolder extends RecyclerView.ViewHolder {        private TextView textView;            public LinearViewHolder(View itemView) {            super(itemView);            textView = (TextView) itemView.findViewById(R.id.XXX);        }    }        // 实现点击事件的接口    public interface OnItemClickListener {        void onClick(int pos);    }}

RecyclerView.setLayoutManager(new LinearLayoutManager(LinearRecyclerViewActivity.this));// 分割线功能RecyclerView.addItemDecoration(new MyDecoration());RecyclerView.setAdapter(new LinearAdapter(LinearRecyclerViewActivity.this, new LinearAdapter.OnItemClickListener() {    @Override    public void onClick(int pos) {        Toast.makeText(LinearRecyclerViewActivity.this, "click"+pos, Toast.LENGTH_SHORT).show();    }}));class MyDecoration extends RecyclerView.ItemDecoration {    @Override    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {        super.getItemOffsets(outRect, view, parent, state);        outRect.set(0,0,0,getResource().getDimensionPixelOffset(R.dimen.dividerHeight));    }}

水平滚动布局

RecyclerView.setLayoutManager(new LinearLayoutManager(LinearRecyclerViewActivity.this));RecyclerView.setOrientation(LinearLayoutManager.HORIZONTAL);RecyclerView.setAdapter(new LinearAdapter(HorRecyclerViewActivity.this, new HorAdapter.OnItemClickListener() {    @Override    public void onClick(int pos) {        Toast.makeText(HorRecyclerViewActivity.this, "click"+pos, Toast.LENGTH_SHORT).show();    }}));

网格布局

RecyclerView.setLayoutManager(new GridLayoutManager(GridRecyclerViewActivity.this, 3));RecyclerView.setAdapter(new GridAdapter(GridRecyclerViewActivity.this, new GridAdapter.OnItemClickListener() {    @Override    public void onClick(int pos) {        Toast.makeText(HorRecyclerViewActivity.this, "click"+pos, Toast.LENGTH_SHORT).show();    }}));

瀑布流布局

RecyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));RecyclerView.setAdapter(new StaggeredGridAdapter(PuRecyclerViewActivity.this, new StaggeredGridAdapter.OnItemClickListener() {    @Override    public void onClick(int pos) {        Toast.makeText(HorRecyclerViewActivity.this, "click"+pos, Toast.LENGTH_SHORT).show();    }}));

不同的ViewHolder

@Overridepublic RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {    if(viewType == 0)    {        return new LinearViewHolder(LayoutInflater.from(mContext).inflate(R.id.XXX, parent, false));    }else {        return new LinearViewHolder2(LayoutInflater.from(mContext).inflate(R.id.XXX, parent, false));    }}@Overridepublic void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {    if(getItemViewType(position) == 0)    {        ((LinearViewHolder)holder).textView.setText("Hello World!!!");    }else {        ((LinearViewHolder2)holder).textView.setText("XXX");    }        holder.itemView.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {            mlistener.onClick(position);        }    });}// 通过不同的ViewType实例化不同的ViewHolder@Overridepublic int getItemViewType(int position) {    if(position % 2 == 0) {        return 0;    }else {        return 1;    }}class LinearViewHolder extends RecyclerView.ViewHolder {    private TextView textView;    public LinearViewHolder(View itemView) {        super(itemView);        textView = (TextView) itemView.findViewById(R.id.XXX);    }}class LinearViewHolder2 extends RecyclerView.ViewHolder {    private TextView textView;    private ImageView imageView;    public LinearViewHolder(View itemView) {        super(itemView);        textView = (TextView) itemView.findViewById(R.id.XXX);        imageView = (ImageView) itemView.findViewById(R.id.XXX);    }}

WebView

加载网络URL

webview.getSettings().setJavaScriptEnable(true);// 继续在本应用打开链接而不是跳转外部浏览器webview.setWebViewClient(new MyWebViewClient());webview.loadUrl("http://m.baidu.com");class MyWebViewClient extends WebViewClient {    @Override    public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {        view.loadUrl(request.getUrl().toString());        return true;    }}

加载assets下的html文件
webview.loadUrl(file:///android_assets/test.html);
加载html代码
webview.loadData();
webview.loadDataWithBaseURL();
网页的前进后退
webview.canGoBack();
webview.goBack();
webview.canGoForward();
webview.goForward();
webview.canGoBackOrForward(int steps);
webview.goBackOrForward(int steps);
按下返回键时使网页后退而不是退出当前Activity

// 重写onKeyDown方法@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {    if((keyCode == KeyEvent.KEYCODE_BACK) && (webView.canGoBack())) {        webView.goBack();        return true;    }}

Toast

默认

Toast.makeText(getApplicationContext(), "Toast", Toast.LENGTH_LONG).show();

改变位置

Toast toastCenter = Toast.makeText(getApplicationContext(), "居中Toast", Toast.LONG);toastCenter.setGravity(Gravity.CENTER, 0, 0);toastCenter.show();

带图片

Toast toastCustom = new Toast;LayoutInflater inflater = new LayoutInflater.from(ToastActivity.this);View view = inflater.inflater(R.layout.XXX, null);ImageView imageView = view.findViewById(R.id.XXX);TextView textView = view.findViewById(R.id.XXX);imageView.setImageResource(R.drawable.XXX);textView.setText("XXX");toastCustom.setView(view);toastCustom.show();

AlertDialog(警示对话框)

默认样式

AlerDialog.Builder builder = new AlerDialog.Builder(DialogActivity.this);builder.setTitle("XXX");builder.setIcon(R.drawable.XXX);builder.setMeesage("XXX");// 积极的：setPositiveButton// 中立的：setNeutralButton// 消极的：setNegativeButtonbuilder.setPositiveButton("X", new DialogInterface.OnClickListener() {    // do something...})builder.show();

单选样式

final String[] array1 = String[]{"男", "女"};AlerDialog.Builder builder1 = new AlerDialog.Builder(DialogActivity.this);builder1.setTitle("选择性别");builder1.setItem(array, new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {        // do something...    }});builder1.show();

radio button 样式

final String[] array2 = String[]{"男", "女"};AlerDialog.Builder builder2 = new AlerDialog.Builder(DialogActivity.this);builder2.setSingleChoiceItems(array2, 0, new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {        // do something...        // 点击时消失        dialog.dismiss();    }});// 点击提示框外部区域也不能使提示框消失builder2.setCancelable(false);builder2.show();

多选样式

final String[] array3 = String[]{"唱歌", "跳舞", "写代码"};boolean[] isSeletced = new boolean[]{false, false, true};AlerDialog.Builder builder3 = new AlerDialog.Builder(DialogActivity.this);builder3.setTitle("选择兴趣");builder3.setMultiChoiceItems(array3, isSeletced, new DialogInterface.OnMultiChoiceClickListener {    @Override    public void OnClick(DialogInterface dialog, int which, boolean isChecked) {        // do something...    }});builder3.show();

自定义样式

AlerDialog.Builder builder4 = new AlerDialog.Builder(DialogActivity.this);View view = LayoutInfalter.from(DialogActivity.this).inflate(R.layout.XXX);builder4.setView(view);builder4.show();

ProgressBar & ProgressDialog

ProgressBar

常用属性

style="@android:style/Widget.XXX" 样式
2.android:visibility
gone 移除
visible 可见
invisible 不可见
android:max 最大值
android:progress 当前值
android:secondaryProgress 二级进度值
style="@style/MyProgressBar" 自定义进度条背景

代码

// 设置当前进度值ProgressBar.setProgress(30);

ProgressDialog

代码

样式1(转圈)

ProgressDialog progressDialog = new ProgressDialog(ProgressActivity.this);progressDialog.setTitle("提示");progressDialog.setMessage("正在加载");progressDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {    @Override    public void onCancel(DialogInterface dialogInterface) {        ToastUtil.showMsg(ProgressActivity.this, "加载完成");}});//progressDialog.setCancelable(false); // 只有加载完成才能消失progressDialog.show();

样式2(横向进度条)

progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);

自定义Dialog

常用属性

android:textStyle
"bold" 加粗

PopupWindow

View view = getLayoutInflater().inflater(R.layout.XXX);PopupWindow mPop = new PopupWindow(view, width, ViewGroup.LayoutParams.WARP_CONTENT);mPop.setOutsideTouchable(true); // 点击其他区域时消失mPop.setFocusable(true); // 第一次点击弹出，第二次点击收起mPop.showAsDropDwon(mBtnPop); // 在某个控件下方显示

AS Layout布局

线性布局LinearLayout

常用属性

相对布局RelativeLayout

常用属性

TextView

常用属性

Button

自定义背景形状

自定义点击效果

EditText

常用属性

RadioButton

常用属性

CheckBox复选框

常用属性

ImageView

常用属性

加载网络图片

ListView列表视图

GridView网格视图

常用属性

ScrollView & HorizontalScrollView

常用属性

RecyclerView

常用属性

布局文件

代码

WebView

Toast

AlertDialog(警示对话框)

ProgressBar & ProgressDialog

ProgressBar

常用属性

代码

ProgressDialog

代码

自定义Dialog

常用属性

PopupWindow

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