自定义组件（二）

上一次我用include实现的这个功能，这次用自定义布局来实现，

创建CompoundView类重写前三个构造方法

 private void initView(Context mContext ){
        LayoutInflater inflater=(LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        //将compound_view导入LinearLayout中
        inflater.inflate(R.layout.compound_view,this);
        btn= (Button) this.findViewById(R.id.view_item_btn);
        mProgressBar=(ProgressBar)this.findViewById(R.id.view_pbar);
    }

在initView（）方法中把自己的布局加载进去
定义

 private  int max=100;//最大进度
private int progress=0;//当前进度
private OnClickListener listener;

设置他们的set方法

//提供给使用者设置butter监听的
public void setListener(OnClickListener listener) {
this.listener = listener;
//为butter设置监听
        btn.setOnClickListener(listener);
    }


public void setMax(int max) {
this.max = max;
        mProgressBar.setMax(max);
    }


public void setProgress(int progress) {
if(progress>max){
this.progress=max;
        }else {
this.progress = progress;
        }
        mProgressBar.setProgress(progress);
    }

重写onFinishInflate
@Override
protected void onFinishInflate() {
super.onFinishInflate();
//设置进度条默认最大值
mProgressBar.setMax(max);
}

自定义布局中的代码就完了
在MainActivity中引入布局
设置默认的最大值和监听事件

 myView.setMax(50);
        myView.setListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
                b=false;
                i=0;
                myView.setProgress(i);
            }
        });

---

全部代码
重写xml布局
compound_view

<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="horizontal"
android:gravity="center"
android:padding="20dp"
android:layout_height="match_parent">
<ProgressBar
 android:layout_width="5dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:id="@+id/view_pbar"
style="?android:attr/progressBarStyleHorizontal"
android:max="10"
 />
<Button
 android:layout_width="0dp"
android:layout_height="wrap_content"
android:id="@+id/view_item_btn"
android:layout_weight="1"
android:text="取消下载"
 />

</merge>

mainActivity的布局代码

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
 xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_main"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<Button
 android:id="@+id/main_btn"
android:text="下载"
android:layout_height="wrap_content"
android:layout_width="match_parent"
 />
<com.axnet.viewapp.CompoundView
 android:id="@+id/main_in"
android:layout_height="wrap_content"
android:layout_width="match_parent"
layout="@layout/main_item"
 />
</LinearLayout>

CompoundView代码

public class CompoundView extends LinearLayout{
private Button btn;
private ProgressBar mProgressBar;
private  int max=100;//最大进度
private int progress=0;//当前进度
private OnClickListener listener;

public CompoundView(Context context) {
super(context);
        initView(context);
    }

public CompoundView(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
        initView(context);
    }

public CompoundView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
        initView(context);
    }

@Override
protected void onFinishInflate() {
super.onFinishInflate();
//设置进度条默认最大值
        mProgressBar.setMax(max);
    }

//提供给使用者设置butter监听的
public void setListener(OnClickListener listener) {
this.listener = listener;
//为butter设置监听
        btn.setOnClickListener(listener);
    }


public void setMax(int max) {
this.max = max;
        mProgressBar.setMax(max);
    }


public void setProgress(int progress) {
if(progress>max){
this.progress=max;
        }else {
this.progress = progress;
        }
        mProgressBar.setProgress(progress);
    }


private void initView(Context mContext ){
        LayoutInflater inflater=(LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
//将compound_view导入LinearLayout中
        inflater.inflate(R.layout.compound_view,this);
        btn= (Button) this.findViewById(R.id.view_item_btn);
        mProgressBar=(ProgressBar)this.findViewById(R.id.view_pbar);
    }
}

mainActivity代码

public class MainActivity extends AppCompatActivity {

    Button main_btn,main_item_btn;
    CompoundView myView;
int i=0;
boolean b=true;


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

    }

private void initClick() {
//下载按钮
        main_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
                b=true;
new Thread(new Runnable() {
@Override
public void run() {
while (b){
try {
                                Thread.sleep(1000);
                                runOnUiThread(new Runnable() {
@Override
public void run() {
                                        myView.setProgress(i++);
                                    }
                                });
                            } catch (InterruptedException e) {
                                e.printStackTrace();
                            }
                        }
                    }
                }).start();
            }
        });

        myView.setMax(50);
        myView.setListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
                b=false;
                i=0;
                myView.setProgress(i);
            }
        });
    }

private void initView() {
        main_btn=(Button)findViewById(R.id.main_btn);
        myView= (CompoundView) findViewById(R.id.main_in);
    }
}