Main
package bawei.wang.demo_flowlayout01;
import android.content.ContentValues;
import android.database.Cursor;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import bawei.wang.demo_flowlayout01.sql.Dao;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private EditText edtext;
private FlowLayout flowLayout;
private Dao dao;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
dao = new Dao(MainActivity.this);
edtext = findViewById(R.id.editText);
Button b1 = findViewById(R.id.button);
Button b2 = findViewById(R.id.btn_clear);
flowLayout = findViewById(R.id.myFlowLayout);
b1.setOnClickListener(this);
b2.setOnClickListener(this);
Cursor query = dao.query("d1130", null, null, null, null, null, null);
if (query.moveToFirst()) {
do{
String s = query.getString(query.getColumnIndex("s"));
flowLayout.addViewaa(s);
}while (query.moveToNext());
}else{
Toast.makeText(this, "数据库无数据", Toast.LENGTH_SHORT).show();
}
}
@Override
public void onClick(View v) {
switch (v.getId()){
case R.id.button:
String trim = edtext.getText().toString().trim();
flowLayout.addViewaa(trim);
ContentValues values = new ContentValues();
values.put("s",trim);
long insert = dao.insert("d1130", null, values);
Log.e("添加",""+insert);
break;
case R.id.btn_clear:
edtext.getText().clear();
flowLayout.removeAllViews();
int delete = dao.delete("d1130", null, null);
Log.e("删除",delete+"");
break;
}
}
}
自定义viwe
package bawei.wang.demo_flowlayout01;
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;
public class FlowLayout extends FrameLayout {
public FlowLayout(Context context) {
super(context);
}
public FlowLayout(Context context, AttributeSet attrs) {
super(context, attrs);
}
public FlowLayout(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
}
// 点击搜索后 将输入框的数据添加进去
public void addViewaa(String keys) {
// 加载布局
TextView textView = (TextView) View.inflate(getContext(), R.layout.flow_item_text, null);
// 设置文字
textView.setText(keys);
// 设置文字自适应
FrameLayout.LayoutParams f = new FrameLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
textView.setLayoutParams(f);
// 添加视图
addView(textView);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
int width = getWidth();// 获取本控件的宽度
int row = 0;//行数
int disWidth = 20;// 子控件左边的距离
for (int i = 0; i < getChildCount(); i++) {
View view = getChildAt(i);// 找到子控件
// 获取子控件的宽度
int viewWidth = view.getWidth();
// 获取子控件的高度
int viewHeight = view.getHeight();
// 如果所有子控件的宽度相加超过了屏幕宽度,则换行进行展示
if (disWidth + viewWidth > width) {
row++;// 行数加一行
disWidth = 20; // 使下一行的第一个控件距离左边相等
}
// 设置位置
view.layout(disWidth, row * viewHeight + row * 20, disWidth + viewWidth, (row * viewHeight + row * 20) + viewHeight);
//记录下一次子控件的坐标
disWidth += (viewWidth + 20);
}
}
}
Mian.xml
<?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
android:layout_width="match_parent"
android:layout_height="50dp"
android:orientation="horizontal">
<EditText
android:id="@+id/editText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textPersonName"
android:hint="输入即存入下方"/>
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="搜索" />
</LinearLayout>
<bawei.wang.demo_flowlayout01.FlowLayout
android:id="@+id/myFlowLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1">
</bawei.wang.demo_flowlayout01.FlowLayout>
<Button
android:id="@+id/btn_clear"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="清空" />
</LinearLayout>
控件Text.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="尝试一下"
android:textSize="20sp"
android:padding="10dp"
android:textColor="#00f"
android:background="@drawable/text_b">
</TextView>