流式佈局

attrs佈局

<?xml version="1.0" encoding="utf-8"?>

樣式styl

<?xml version="1.0" encoding="utf-8"?> <?xml version="1.0" encoding="utf-8"?>

<com.example.zhoukaoyi.weight.MyXHView
    android:layout_width="match_parent"
    android:layout_height="80dp"
    android:id="@+id/header_View"
    ></com.example.zhoukaoyi.weight.MyXHView>

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:text="搜索歷史"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_marginRight="10dp"
        android:text="刪除"
        android:id="@+id/Delete_Text"
        />

</RelativeLayout>

<com.example.zhoukaoyi.weight.MyFloatLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/MyFloat_Layout_History"
    app:textColor="@color/colorPrimaryDark"
    ></com.example.zhoukaoyi.weight.MyFloatLayout>
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginLeft="10dp"
    android:text="熱門搜索" />


<com.example.zhoukaoyi.weight.MyFloatLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:id="@+id/MyFloat_Layout"
    app:textColor="@color/colorPrimaryDark"
    ></com.example.zhoukaoyi.weight.MyFloatLayout>

引用佈局 <?xml version="1.0" encoding="utf-8"?>

<EditText
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_weight="6"
    android:drawableLeft="@mipmap/ic_launcher"
    android:drawablePadding="5dp"
    android:id="@+id/Search_Edit"
    android:hint="搜索"
    />
<TextView
    android:layout_width="0dp"
    android:layout_weight="1"
    android:layout_height="wrap_content"
    android:id="@+id/Cancel_Text"
    android:gravity="center"
    android:text="添加"
    />

Activity 代碼
package com.example.zhoukaoyi;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;

import com.example.zhoukaoyi.dao.MyDao;
import com.example.zhoukaoyi.weight.MyFloatLayout;
import com.example.zhoukaoyi.weight.MyXHView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

private String[] data = {"流感", "咳嗽", "過敏", "發燒", "感冒", "溼疹", "便祕", "痔瘡", "協和", "鼻炎", "失眠", "痛風", "上火", "腳氣", "抑鬱症", "性慾", "乳腺增生", "頭暈", "腰痛"};
private MyXHView header_View;
private TextView Delete_Text;
private MyFloatLayout mHistoryLayout;

private ArrayList mList=new ArrayList<>();
private ArrayListmHistoy=new ArrayList<>();
private MyFloatLayout myFloatLayout;
private MyDao myDao;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    myDao = new MyDao(this);
    mHistoy= myDao.selectName();
    initData();
    initView();
    if(!mHistoy.isEmpty()){
        mHistoryLayout.setData(mHistoy);
    }
}
private void initData(){
    for (int i = 0; i <data.length ; i++) {
        mList.add(data[i]);
    }
}
private void initView() {
    header_View = (MyXHView) findViewById(R.id.header_View);
    header_View.getmCancel().setOnClickListener(this);
    Delete_Text = (TextView) findViewById(R.id.Delete_Text);
    Delete_Text.setOnClickListener(this);
    mHistoryLayout = (MyFloatLayout) findViewById(R.id.MyFloat_Layout_History);

    myFloatLayout = findViewById(R.id.MyFloat_Layout);
    myFloatLayout.setData(mList);
}

@Override
public void onClick(View v) {

switch (v.getId()){
    case R.id.Cancel_Text:
      String name=  header_View.getEditStr().trim();
      myDao.insertSqlite(header_View.getEditStr().trim());
      mHistoryLayout.removeChildView();
      mHistoy.add(name);
      mHistoryLayout.setData(mHistoy);

      break;
    case R.id.Delete_Text:
       mHistoy.clear();

mHistoryLayout.removeChildView();
        break;
}
}

}

流式代碼
package com.example.zhoukaoyi.weight;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Color;
import android.text.Layout;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.example.zhoukaoyi.R;

import java.util.ArrayList;

public class MyFloatLayout extends LinearLayout {
private int mScreenWidth;
private int getmScreenHeight;
private String mColor;

public MyFloatLayout(Context context, AttributeSet attrs) {
    super(context, attrs);

  DisplayMetrics metrics= context.getResources().getDisplayMetrics();
  mScreenWidth= metrics.widthPixels;
 getmScreenHeight= metrics.heightPixels;
 //設置這個佈局垂直顯示
    setOrientation(VERTICAL);
   TypedArray typedArray= context.obtainStyledAttributes(attrs,R.styleable.GroupDemoView);
if(typedArray!=null){
    mColor= (String) typedArray.getText(R.styleable.GroupDemoView_textColor);
}


}

public void removeChildView(){
    removeAllViews();
}

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    super.onLayout(changed, l, t, r, b);
}
public void setData(ArrayList<String>data){
    LinearLayout linearLayout = getLin();
    for (int i = 0; i <data.size() ; i++) {
       final String tmp = data.get(i);
       int numWidth=0;
        int childCount = linearLayout.getChildCount();
        for (int j = 0; j <childCount ; j++) {
            TextView tv= (TextView) linearLayout.getChildAt(j);
            LayoutParams layoutParams = (LayoutParams) tv.getLayoutParams();
           int leftMargin= layoutParams.leftMargin;
           tv.measure(getMeasuredWidth(),getmScreenHeight);
           numWidth+=tv.getMeasuredWidth()+leftMargin+tv.getPaddingLeft()+getPaddingRight();

        }
        TextView dataText=getText();
        dataText.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Toast.makeText(getContext(),tmp,Toast.LENGTH_SHORT).show();
            }
        });
        LayoutParams params=new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
        params.leftMargin=15;
        params.topMargin=10;
        dataText.setLayoutParams(params);
        dataText.setText(tmp);
        dataText.measure(getMeasuredWidth(),getmScreenHeight);
       int dataTextWidth= dataText.getMeasuredWidth()+dataText.getPaddingLeft()+dataText.getPaddingRight();

       if(mScreenWidth>=numWidth+dataTextWidth){
           linearLayout.addView(dataText);
       }else{
           linearLayout=getLin();
           linearLayout.addView(dataText);
       }
    }

}

private LinearLayout getLin(){
    LinearLayout linearLayout=new LinearLayout(getContext());
    LayoutParams params=new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT);
    linearLayout.setLayoutParams(params);
    this.addView(linearLayout);
    return linearLayout;
}

private TextView getText(){
    TextView textView=new TextView(getContext());
    textView.setTextSize(20);
    textView.setTextColor(Color.parseColor(mColor));
    textView.setBackgroundResource(R.drawable.text_style);
    textView.setPadding(10,3,10,3);
    return textView;
}

}

引用佈局
package com.example.zhoukaoyi.weight;

import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.example.zhoukaoyi.R;

public class MyXHView extends LinearLayout {

private final EditText mEditText;
private final TextView mCancel;

public MyXHView(Context context, AttributeSet attrs) {
    super(context, attrs);
    LayoutInflater.from(context).inflate(R.layout.header_view,this);
    mEditText = findViewById(R.id.Search_Edit);
    mCancel = findViewById(R.id.Cancel_Text);
}
public String getEditStr(){
    return mEditText.getText().toString();
}
public TextView getmCancel(){
    return mCancel;
}

}

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