1.自定义布局
package com.example.administrator.ydwlxcpt.Utils; import android.content.Context; import android.util.AttributeSet; import android.util.Log; import android.view.View; import android.view.ViewGroup; import java.util.ArrayList; import java.util.List; /** * Created by Administrator on 2018/5/8. */ public class FlowGroupView extends ViewGroup { //存储所有子View private List<List<View>> mAllChildViews = new ArrayList<>(); //每一行的高度 private List<Integer> mLineHeight = new ArrayList<>(); public FlowGroupView(Context context) { this(context, null); // TODO Auto-generated constructor stub } public FlowGroupView(Context context, AttributeSet attrs) { this(context, attrs, 0); // TODO Auto-generated constructor stub } public FlowGroupView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); // TODO Auto-generated constructor stub } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { // TODO Auto-generated method stub //父控件传进来的宽度和高度以及对应的测量模式 int sizeWidth = MeasureSpec.getSize(widthMeasureSpec); int modeWidth = MeasureSpec.getMode(widthMeasureSpec); int sizeHeight = MeasureSpec.getSize(heightMeasureSpec); int modeHeight = MeasureSpec.getMode(heightMeasureSpec); //如果当前ViewGroup的宽高为wrap_content的情况 int width = 0;//自己测量的 宽度 int height = 0;//自己测量的高度 //记录每一行的宽度和高度 int lineWidth = 0; int lineHeight = 0; //获取子view的个数 int childCount = getChildCount(); for(int i = 0;i < childCount; i ++){ View child = getChildAt(i); //测量子View的宽和高 measureChild(child, widthMeasureSpec, heightMeasureSpec); //得到LayoutParams MarginLayoutParams lp = (MarginLayoutParams) getLayoutParams(); //子View占据的宽度 int childWidth = child.getMeasuredWidth() + lp.leftMargin + lp.rightMargin; //子View占据的高度 int childHeight = child.getMeasuredHeight() + lp.topMargin + lp.bottomMargin; //换行时候 if(lineWidth + childWidth > sizeWidth){ //对比得到最大的宽度 width = Math.max(width, lineWidth); //重置lineWidth lineWidth = childWidth; //记录行高 height += lineHeight; lineHeight = childHeight; }else{//不换行情况 //叠加行宽 lineWidth += childWidth; //得到最大行高 lineHeight = Math.max(lineHeight, childHeight); } //处理最后一个子View的情况 if(i == childCount -1){ width = Math.max(width, lineWidth); height += lineHeight; } } //wrap_content setMeasuredDimension(modeWidth == MeasureSpec.EXACTLY ? sizeWidth : width, modeHeight == MeasureSpec.EXACTLY ? sizeHeight : height); super.onMeasure(widthMeasureSpec, heightMeasureSpec); } @Override protected void onLayout(boolean changed, int l, int t, int r, int b) { // TODO Auto-generated method stub mAllChildViews.clear(); mLineHeight.clear(); //获取当前ViewGroup的宽度 int width = getWidth(); int lineWidth = 0; int lineHeight = 0; //记录当前行的view List<View> lineViews = new ArrayList<View>(); int childCount = getChildCount(); for(int i = 0;i < childCount; i ++){ View child = getChildAt(i); MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams(); int childWidth = child.getMeasuredWidth(); int childHeight = child.getMeasuredHeight(); //如果需要换行 if(childWidth + lineWidth + lp.leftMargin + lp.rightMargin > width){ //记录LineHeight mLineHeight.add(lineHeight); //记录当前行的Views mAllChildViews.add(lineViews); //重置行的宽高 lineWidth = 0; lineHeight = childHeight + lp.topMargin + lp.bottomMargin; //重置view的集合 lineViews = new ArrayList(); } lineWidth += childWidth + lp.leftMargin + lp.rightMargin; lineHeight = Math.max(lineHeight, childHeight + lp.topMargin + lp.bottomMargin); lineViews.add(child); } //处理最后一行 mLineHeight.add(lineHeight); mAllChildViews.add(lineViews); //设置子View的位置 int left = 0; int top = 0; //获取行数 int lineCount = mAllChildViews.size(); for(int i = 0; i < lineCount; i ++){ //当前行的views和高度 lineViews = mAllChildViews.get(i); lineHeight = mLineHeight.get(i); for(int j = 0; j < lineViews.size(); j ++){ View child = lineViews.get(j); //判断是否显示 if(child.getVisibility() == View.GONE){ continue; } MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams(); int cLeft = left + lp.leftMargin; int cTop = top + lp.topMargin; int cRight = cLeft + child.getMeasuredWidth(); int cBottom = cTop + child.getMeasuredHeight(); //进行子View进行布局 child.layout(cLeft, cTop, cRight, cBottom); left += child.getMeasuredWidth() + lp.leftMargin + lp.rightMargin; } left = 0; top += lineHeight; } } /** * 与当前ViewGroup对应的LayoutParams */ @Override public LayoutParams generateLayoutParams(AttributeSet attrs) { // TODO Auto-generated method stub return new MarginLayoutParams(getContext(), attrs); } }
2.Activity-Dialog
package com.example.administrator.ydwlxcpt.Activity; import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.view.Display; import android.view.Gravity; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.widget.EditText; import android.widget.ImageView; import android.widget.LinearLayout; import android.widget.TextView; import com.example.administrator.ydwlxcpt.R; import com.example.administrator.ydwlxcpt.Utils.FlowGroupView; import com.example.administrator.ydwlxcpt.View.FirstEvent; import com.example.administrator.ydwlxcpt.View.TwoEvent; import org.greenrobot.eventbus.EventBus; import java.util.LinkedList; import java.util.List; /** * Created by Administrator on 2018/5/8. */ public class YanSeActivity extends Activity { private String mNames[] = { "白", "灰", "红", "蓝", "黑", "银", "棕","绿","黄" }; private FlowGroupView mFlowLayout,mFlowLayout_shuzi; private EditText chepai; private List<TextView> tvs = null; private TextView quxiao,queding; private ImageView shanchu; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.pop); initChildViews(); setFinishOnTouchOutside(true); WindowManager m = getWindowManager(); Display d = m.getDefaultDisplay(); // 为获取屏幕宽、高 WindowManager.LayoutParams p = getWindow().getAttributes(); p.height = (int) (d.getHeight() * 0.5); // 高度设置为屏幕的0.3 p.width = (int) (d.getWidth() * 1); // 宽度设置为屏幕的0.7 getWindow().setAttributes(p); p.gravity = Gravity.BOTTOM;//设置对话框置顶显示 intview(); } private void intview() { shanchu=(ImageView)findViewById(R.id.iv_yanse_shanchu); quxiao=(TextView)findViewById(R.id.tv_yanse_quxiao); queding=(TextView)findViewById(R.id.tv_yanse_queding); chepai=(EditText)findViewById(R.id.et_yanse_chepai); shanchu.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { String s=chepai.getText().toString(); if(s.length()==0){ //判断字符长度，如果为0就不做任何处理 }else if(s.length()>0){ chepai.setText(s.substring(0,s.length()-1));//将字符取的地方减一位需要减2.“sss”.length()=3,取ss需要取的位置到1,因为subString是左闭右开，所以是需要-2 } } }); quxiao.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { finish(); } }); queding.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { String yanse= chepai.getText().toString(); EventBus.getDefault().post( new TwoEvent(yanse)); finish(); } }); } private void initChildViews() { tvs = new LinkedList<TextView>(); mFlowLayout = (FlowGroupView) findViewById(R.id.flowlayout_yanse); chepai = (EditText) findViewById(R.id.et_chepai); final ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams( LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); lp.width=100; lp.height=100; lp.leftMargin = 10; lp.rightMargin = 10; lp.topMargin = 10; lp.bottomMargin = 10; for (int i = 0; i < mNames.length; i++) { final TextView view = new TextView(this); view.setText(mNames[i]); view.setTextColor(Color.BLACK); view.setTextSize(25);
view.setpinding(10,0,10,0)
view.setBackgroundDrawable(getResources().getDrawable(R.drawable.textview_bg));
tvs.add(view);
mFlowLayout.addView(view, lp);
final String str=view.getText().toString();
tvs.get(i).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
chepai.setText(str);
chepai.setCursorVisible(false);
}
});
}
}
}
3.页面布局<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:id="@+id/container" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <LinearLayout android:layout_width="match_parent" android:layout_height="50dp" android:background="@color/titlebg" > <TextView android:id="@+id/tv_quxiao" android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content" android:text="取消" android:layout_marginLeft="20dp" android:layout_gravity="center_vertical" android:textSize="20sp" android:textColor="@color/white"/> <TextView android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content" android:text="键盘输入" android:layout_gravity="center_vertical" android:textSize="20sp" android:textColor="@color/white" android:layout_marginRight="40dp" /> <TextView android:id="@+id/tv_queding" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="确定" android:layout_gravity="center_vertical" android:textSize="20sp" android:layout_marginRight="20dp" android:textColor="@color/white"/> </LinearLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <EditText android:id="@+id/et_chepai" android:layout_width="match_parent" android:layout_height="50dp" android:background="@drawable/edit_bg" android:maxLength="7" /> <ImageView android:id="@+id/iv_shanchu" android:layout_width="60dp" android:layout_height="50dp" android:src="@drawable/shanchu" android:layout_centerVertical="true" android:layout_alignParentRight="true" android:layout_marginRight="20dp" android:layout_alignRight="@+id/et_chepai" /> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" android:background="#ffffff" > <com.example.administrator.ydwlxcpt.Utils.FlowGroupView android:id="@+id/flowlayout" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginTop="10dp" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" > </com.example.administrator.ydwlxcpt.Utils.FlowGroupView> <com.example.administrator.ydwlxcpt.Utils.FlowGroupView android:id="@+id/flowlayout_shuzi" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginTop="10dp" android:layout_marginLeft="20dp" android:layout_marginRight="20dp" > </com.example.administrator.ydwlxcpt.Utils.FlowGroupView> </RelativeLayout></LinearLayout>4.注册 EventBus EventBus.getDefault().register(this);5.解绑 EventBus public void onDestroy() { super.onDestroy(); EventBus.getDefault().unregister(this);//反注册EventBus }6.接受参数 @Subscribe(sticky = true, threadMode = ThreadMode.MAIN) public void onEvent(FirstEvent event) { String msg = event.getMsg(); Log.d("harvic", msg); et_chepaihao.setText(msg); }7.接口public class FirstEvent { private String chepai; public FirstEvent(String chepaihao) { chepai=chepaihao; } public String getMsg(){ return chepai; }}