//首先查看一下布局界面吧
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal">
<EditText
android:id="@+id/ed_text"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" />
<Button
android:id="@+id/add"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="添加" />
</LinearLayout>
<soexample.umeng.com.liushibuju.MyViewLS
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/selfView"></soexample.umeng.com.liushibuju.MyViewLS>
</LinearLayout>
//很简单一个输入框 一个按钮
//MainActivity界面
//寻找控件啥的就不说了
package soexample.umeng.com.liushibuju;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private EditText td_text;
private ArrayList<String> list = new ArrayList<>( );
private MyViewLS self;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate( savedInstanceState );
setContentView( R.layout.activity_main );
td_text = findViewById( R.id.ed_text );
self = findViewById( R.id.selfView );
findViewById( R.id.add ).setOnClickListener( new View.OnClickListener() {
@Override
public void onClick(View view) {
String trim = td_text.getText().toString().trim();
if (TextUtils.isEmpty( trim )){
Toast.makeText( MainActivity.this, "内容不可为空", Toast.LENGTH_SHORT ).show();
}
list.add( trim );
//这里要传一个存放输入的值的集合
self.setListData(list);
}
} );
}
}
//自定义控件的类
package soexample.umeng.com.liushibuju;
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
/*
流式布局
继承RelativeLayout
实现三个构造方法
* */
public class MyViewLS extends RelativeLayout {
private List<String> listData;
private LinearLayout view_v;
private LinearLayout view_h;
private TextView textView;
private View view1;
private String data;
private int position = 0;
public MyViewLS(Context context) {
super( context );
init( context );
}
public MyViewLS(Context context, AttributeSet attrs) {
super( context, attrs );
init( context );
}
public MyViewLS(Context context, AttributeSet attrs, int defStyleAttr) {
super( context, attrs, defStyleAttr );
init( context );
}
private Context context;
private void init(Context context) {
this.context = context;
//在init方法里面找到垂直的布局 记得强转为LinearLayout
view_v = (LinearLayout) View.inflate( context, R.layout.layout_v, null );
//把垂直的布局添加到布局里面
addView( view_v );
}
private void setlist() {
//记得清空控件
view_v.removeAllViews();
view_h = (LinearLayout) View.inflate( context, R.layout.layout_h, null );
//找到水平的布局 添加到垂直的布局里面
view_v.addView( view_h );
view_h.removeAllViews();
//记得清空
int len = 0;
for (int i = 0; i < listData.size(); i++) {
position = i;
data = listData.get( i );
len += data.length();
if (len > 28) {
view_h = (LinearLayout) View.inflate( context, R.layout.layout_h, null );
view_v.addView( view_h );
len = 0;
}
view1 = View.inflate( context, R.layout.layout_text, null );
textView = view1.findViewById( R.id.text_name );
textView.setText( data );
view_h.addView( view1 );
//长按删除
textView.setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
view_v.removeView(view1);
listData.remove(position);
setlist();
return true;
}
});
}
/*textView.setOnClickListener( new OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText( context, textView.getText().toString().trim(), Toast.LENGTH_SHORT ).show();
}
} );*/
}
public void setListData(ArrayList<String> listData) {
this.listData = listData;
if (!listData.isEmpty()) {
setlist();
}
}
}
//三个布局 逐次添加
//水平布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="horizontal"
android:layout_height="match_parent">
</LinearLayout>
//垂直布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
</LinearLayout>
//文字布局
//文字的布局宽度记得改为match_parent
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:background="@drawable/shape"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/text_name"/>
</LinearLayout>