Android Example: Widget Demo

MainActivity.java

package com.example.widget;

import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
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;

public class MainActivity extends AppCompatActivity {

Activity activity=MainActivity.this;
Button btn_add,btn_display;
EditText et_name,et_mobile;
SqliteOpenhelper openhelper;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();
initcomponent();
setListener();
}
private void init()
{
et_name=(EditText)findViewById(R.id.et_name);
et_mobile=(EditText)findViewById(R.id.et_mobile);
btn_add=(Button) findViewById(R.id.btn_add);
btn_display=(Button) findViewById(R.id.btn_display);
}
private void initcomponent()
{
openhelper=new SqliteOpenhelper(activity);
}
private void setListener()
{
btn_add.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String name=et_name.getText().toString();
String mobile=et_mobile.getText().toString();
openhelper.Insertdata(name,mobile);
et_name.setText("");
et_mobile.setText("");
updateWidget();
}
});
btn_display.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(activity,displayActivity.class));
}
});
}
private void updateWidget() {
try {
Intent updateWidget = new Intent(activity, MyWidgetProvider.class);
updateWidget.setAction("update_widget");
PendingIntent pending = PendingIntent.getBroadcast(activity, 0, updateWidget, PendingIntent.FLAG_CANCEL_CURRENT);
pending.send();
} catch (PendingIntent.CanceledException e) {
Log.e("Error widgetTrial()=" , e.toString());
}

}

}

activity_main.xml

<?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"

android:gravity="center"

tools:context=".MainActivity">

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="vertical"

android:layout_marginLeft="10dp">

<EditText

android:id="@+id/et_name"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:hint="Enter Name"

android:textSize="15sp"

android:inputType="textPersonName"

android:textColor="@android:color/black"/>

<EditText

android:id="@+id/et_mobile"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:hint="Enter Mobile no"

android:textSize="15sp"

android:inputType="number"

android:layout_marginTop="15dp"

android:textColor="@android:color/black"/>

<Button

android:id="@+id/btn_add"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="Add"

android:layout_marginTop="20dp"

android:layout_marginLeft="30dp"

android:layout_marginRight="30dp"/>

<Button

android:id="@+id/btn_display"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:text="Display"

android:layout_marginTop="20dp"

android:layout_marginLeft="30dp"

android:layout_marginRight="30dp"/>

</LinearLayout>

<com.jackandphantom.circularimageview.CircleImage

android:layout_width="200dp"

android:layout_height="200dp"

android:src="@drawable/user"

app:border_width="2dp"

app:border_color="#747272"

app:add_shadow="true"

app:shadow_color="#141414"

app:shadow_radius="15"

android:id="@+id/circleImage" />

</LinearLayout>

SqliteOpenhelper.java

package com.example.widget;

import android.content.ContentValues;

import android.content.Context;

import android.database.Cursor;

import android.database.sqlite.SQLiteDatabase;

import android.database.sqlite.SQLiteOpenHelper;

import android.util.Log;

import android.widget.Toast;

import com.example.widget.model.Datamodel;

import java.util.ArrayList;

public class SqliteOpenhelper extends SQLiteOpenHelper

{

SQLiteDatabase db;

Context context;

public SqliteOpenhelper(Context context) {

super(context, "Demo.db", null, 1);

this.context=context;

}

@Override

public void onCreate(SQLiteDatabase db) {

db.execSQL("create table IF NOT EXISTS demo_task (id INTEGER PRIMARY KEY AUTOINCREMENT,task_nm TEXT,task_no Text)");

}

@Override

public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

}

public void Insertdata(String name,String mobile_no)

{

db=getWritableDatabase();

ContentValues cv=new ContentValues();

cv.put("task_nm",name);

cv.put("task_no",mobile_no);

long f=db.insert("demo_task",null,cv);

if(f==-1)

{

Toast.makeText(context, "Not Inserted", Toast.LENGTH_SHORT).show();

}

else

{

Toast.makeText(context, "Inserted", Toast.LENGTH_SHORT).show();

}

public ArrayList<Datamodel> getdata()

{

ArrayList<Datamodel> list=new ArrayList<>();

db=getReadableDatabase();

Cursor c=db.rawQuery("select * from demo_task",null);

if(c.moveToFirst())

{

do {

Datamodel bean=new Datamodel();

bean.setTask_nm(c.getString(c.getColumnIndex("task_nm")));

bean.setTask_no(c.getString(c.getColumnIndex("task_no")));

list.add(bean);

}while (c.moveToNext());

}

Log.e("list===",list.toString());

return list;

}

Datamodel.java

package com.example.widget.model;

public class Datamodel

{

public String task_nm,task_no;

public String getTask_nm() {

return task_nm;

}

public void setTask_nm(String task_nm) {

this.task_nm = task_nm;

}

public String getTask_no() {

return task_no;

}

public void setTask_no(String task_no) {

this.task_no = task_no;

}

displayActivity.java

package com.example.widget;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import com.example.widget.Adapter.displayadapter;

import com.example.widget.model.Datamodel;

import java.util.ArrayList;

public class displayActivity extends AppCompatActivity {

RecyclerView rv;

ArrayList<Datamodel> listdata;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_display);

init();

Setlistener();

}

private void init()

{

rv=(RecyclerView)findViewById(R.id.rv);

listdata=new ArrayList<>();

}

private void Setlistener()

{

SqliteOpenhelper openhelper=new SqliteOpenhelper(displayActivity.this);

listdata=openhelper.getdata();

LinearLayoutManager lm=new LinearLayoutManager(displayActivity.this);

displayadapter displayadapter=new displayadapter(listdata,displayActivity.this);

rv.setLayoutManager(lm);

rv.setAdapter(displayadapter);

}

activity_display.xml

<?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"

tools:context=".displayActivity">

<android.support.v7.widget.RecyclerView

android:id="@+id/rv"

android:layout_width="match_parent"

android:layout_height="match_parent">

</android.support.v7.widget.RecyclerView>

</LinearLayout>

displayadapter.java

package com.example.widget.Adapter;

import android.content.Context;

import android.support.annotation.NonNull;

import android.support.v7.widget.RecyclerView;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.TextView;

import com.example.widget.R;

import com.example.widget.displayActivity;

import com.example.widget.model.Datamodel;

import java.util.ArrayList;

public class displayadapter extends RecyclerView.Adapter<displayadapter.myViewholder>

{

ArrayList<Datamodel> listdata;

Context context;

public displayadapter(ArrayList<Datamodel> listdata, displayActivity context)

{

this.listdata=listdata;

this.context=context;

}

@NonNull

@Override

public myViewholder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

View v= LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_file,viewGroup,false);

myViewholder h=new myViewholder(v);

return h;

}

@Override

public void onBindViewHolder(@NonNull myViewholder myViewholder, int i)

{

myViewholder.txt_nm.setText(listdata.get(i).getTask_nm());

myViewholder.txt_no.setText(listdata.get(i).getTask_no());

}

@Override

public int getItemCount() {

return listdata.size();

}

public class myViewholder extends RecyclerView.ViewHolder

{

TextView txt_nm,txt_no;

public myViewholder(@NonNull View itemView) {

super(itemView);

txt_nm=(TextView)itemView.findViewById(R.id.txt_nm);

txt_no=(TextView)itemView.findViewById(R.id.txt_no);

}

item_file.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="wrap_content"

android:orientation="vertical">

<TextView

android:id="@+id/txt_nm"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:textSize="15sp"

android:layout_margin="5dp"

android:textStyle="bold"

android:fontFamily="serif"

android:textColor="@android:color/black"

android:text="name"/>

<TextView

android:id="@+id/txt_no"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:textSize="15sp"

android:layout_margin="5dp"

android:textStyle="bold"

android:fontFamily="serif"

android:textColor="@android:color/black"

android:text="name"/>

<View

android:layout_width="match_parent"

android:layout_height="1dp"

android:layout_marginTop="5dp"

android:background="@android:color/black"/>

</LinearLayout>

MyWidgetProvider.java

package com.example.widget;

import android.annotation.TargetApi;

import android.app.PendingIntent;

import android.appwidget.AppWidgetManager;

import android.appwidget.AppWidgetProvider;

import android.content.ComponentName;

import android.content.Context;

import android.content.Intent;

import android.net.Uri;

import android.os.Build;

import android.support.annotation.NonNull;

import android.util.Log;

import android.widget.RemoteViews;

import android.widget.Toast;

public class MyWidgetProvider extends AppWidgetProvider

{

private String TAG = "MyWidgetProvider";

@Override

public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {

// There may be multiple widgets active, so update all of them

final int N = appWidgetIds.length;

for (int i = 0; i < N; ++i)

{

RemoteViews remoteViews = updateWidgetListView(context, appWidgetIds[i]);

appWidgetManager.updateAppWidget(appWidgetIds[i], remoteViews);

}

super.onUpdate(context, appWidgetManager, appWidgetIds);

}

@Override

public void onReceive(Context context, Intent intent) {

super.onReceive(context, intent);

Log.e(TAG, "onReceive: " + intent.getAction());

if (intent.getAction().equals("update_widget"))

{

// widget update started

RemoteViews remoteViews = new RemoteViews(context.getPackageName(),

R.layout.widget_layout);

AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);

int appWidgetIds[] = appWidgetManager.getAppWidgetIds(new ComponentName(context, MyWidgetProvider.class));

appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetIds, R.id.widget_listView);

AppWidgetManager.getInstance(context).updateAppWidget(

new ComponentName(context, MyWidgetProvider.class), remoteViews);

}

@Override

public void onEnabled(Context context) {

// Enter relevant functionality for when the first widget is created

}

@Override

public void onDisabled(Context context) {

// Enter relevant functionality for when the last widget is disabled

}

private RemoteViews updateWidgetListView(Context context, int appWidgetId) {

RemoteViews remoteViews = new RemoteViews(context.getPackageName(),

R.layout.widget_layout);

Intent svcIntent = new Intent(context, StockWidgetService.class);

svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);

svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));

remoteViews.setRemoteAdapter(appWidgetId, R.id.widget_listView, svcIntent);

// click

/* Intent startActivityIntent = new Intent(context, MainActivity.class);

PendingIntent startActivityPendingIntent = PendingIntent.getActivity(context, 0, startActivityIntent, PendingIntent.FLAG_UPDATE_CURRENT);

remoteViews.setPendingIntentTemplate(R.id.widget_listView, startActivityPendingIntent);*/

return remoteViews;

}

widget_layout.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:layout_margin="5sp"

android:background="@android:color/white"

android:orientation="vertical">

<TextView

android:id="@+id/title"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:background="@android:color/black"

android:fontFamily="serif"

android:maxLines="2"

android:paddingBottom="5dp"

android:text="Demo"

android:textColor="#fcfcfc"

android:textSize="16sp"

android:textStyle="bold" />

<ListView

android:id="@+id/widget_listView"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:background="@android:color/white">

</ListView>

</LinearLayout>

StockWidgetService.java

package com.example.widget;

import android.content.Intent;

import android.util.Log;

import android.widget.RemoteViewsService;

public class StockWidgetService extends RemoteViewsService

{

@Override

public RemoteViewsFactory onGetViewFactory(Intent intent)

{

Log.e("StockWidgetService","Calll");

return new WidgetTaskListProvider(this,intent);

}

WidgetTaskListProvider.java

package com.example.widget;

import android.appwidget.AppWidgetManager;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.util.Log;

import android.widget.RemoteViews;

import android.widget.RemoteViewsService;

import com.example.widget.model.Datamodel;

import java.util.ArrayList;

import java.util.List;

public class WidgetTaskListProvider implements RemoteViewsService.RemoteViewsFactory

{

public static List<Datamodel> taskList = new ArrayList<>();

private Context context = null;

private SqliteOpenhelper dataHelper;

private String TAG = "WidgetTaskListProvider";

public WidgetTaskListProvider(Context context, Intent intent)

{

Log.e("WidgetTaskLListProvider","flsdf");

this.context = context;

this.dataHelper = new SqliteOpenhelper(context);

/* appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,

AppWidgetManager.INVALID_APPWIDGET_ID);*/

taskList = dataHelper.getdata();

}

@Override

public void onCreate() {

}

@Override

public void onDataSetChanged() {

Log.e(TAG, "onDataSetChanged: ");

taskList = dataHelper.getdata();

}

@Override

public void onDestroy() {

}

@Override

public int getCount() {

return taskList.size();

}

@Override

public RemoteViews getViewAt(int position) {

final RemoteViews remoteView = new RemoteViews(

context.getPackageName(), R.layout.item_layout);

Datamodel listItem = taskList.get(position);

remoteView.setTextViewText(R.id.stock_symbol, listItem.task_nm);

// remoteView.setTextViewText(R.id.tvCategory, listItem.task_notes);

/* Bundle extras = new Bundle();

extras.putSerializable("Task_Bean", listItem);

Intent fillInIntent = new Intent();

fillInIntent.putExtras(extras);

remoteView.setOnClickFillInIntent(R.id.lrTaskView, fillInIntent);*/

return remoteView;

}

@Override

public RemoteViews getLoadingView() {

return null;

}

@Override

public int getViewTypeCount() {

return 1;

}

@Override

public long getItemId(int position) {

return position;

}

@Override

public boolean hasStableIds() {

return true;

}

item_layout.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:gravity="center_vertical"

android:orientation="horizontal"

android:paddingLeft="16dp"

android:paddingRight="16dp"

android:background="@android:color/white">

<TextView

android:id="@+id/stock_symbol"

android:textSize="16sp"

android:padding="5dp"

android:textColor="@android:color/black"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:gravity="start|center_vertical"

tools:text="List Widget Item"

</LinearLayout>

AndroidManifest.xml

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

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

package="com.example.widget">

<application

android:allowBackup="true"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:roundIcon="@mipmap/ic_launcher_round"

android:supportsRtl="true"

android:theme="@style/AppTheme"

tools:ignore="GoogleAppIndexingWarning">

<intent-filter>

</intent-filter>

</activity>

<intent-filter>

</intent-filter>

<meta-data

android:name="android.appwidget.provider"

android:resource="@xml/app_widget_provider" />

</receiver>

<service android:name=".StockWidgetService"

android:permission="android.permission.BIND_REMOTEVIEWS"/>

</application>

</manifest>

res/xml/app_widget_provider.xml

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

<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"

android:initialLayout="@layout/widget_layout"

android:minHeight="100dp"

android:minWidth="100dp"

android:previewImage="@drawable/ic_launcher_foreground"

android:updatePeriodMillis="1000000"

android:resizeMode="horizontal|vertical"

android:widgetCategory="home_screen|keyguard">

</appwidget-provider>

Android Example

Sunday, July 21, 2019

Widget Demo

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