pdm_aula07_Toast

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PDM - Aula07- Ver 01 - 18/10/2012 09:14
Programação de Dispositivos Móveis
Aula 07
Interface Gráfica – Toast
Continuação da Aplicação Android (Aula07B)
O aplicativo que agora vai permitir o usuário verificar a funcionalidade do Toast.
Código – Aula07B Toast
O aplicativo que agora vai permitir o usuário verificar a funcionalidade do Toast. 
	
Listagem 1. exemplo_toast.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" >
	<TextView 
 	android:layout_width="fill_parent" android:layout_height="wrap_content" 
 	android:text="O Toast abriu com uma View em XML.
 	\nClick no botão Repetir para ver Views no Toast também, não somente textos"
 /> 
 
 	<LinearLayout
 			android:orientation="horizontal"
 			android:layout_width="fill_parent"
 			android:layout_height="fill_parent" 
 			android:gravity="center">
	
		<Button android:id="@+id/buttonRepetir"
			android:layout_width="wrap_content" android:layout_height="wrap_content" 
			android:layout_gravity="center" android:text="Repetir" /> 
			
		<Button android:id="@+id/buttonSair"
			android:layout_width="wrap_content" android:layout_height="wrap_content" 
			android:layout_gravity="center" android:text="Sair" /> 
	</LinearLayout>
</LinearLayout>
Listagem 2. exemplo_toast_view_inflate.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" >
 <View 
 android:layout_height="2dip" android:layout_width="fill_parent" 
	 android:background="#FF909090" />
 
	<TextView 
		android:layout_width="fill_parent" android:layout_height="wrap_content" 
		android:text="Exemplo para o LayoutInflater" />
	
	<TextView 
		android:layout_width="fill_parent" android:layout_height="wrap_content" 
		android:text="O Android permite abrir View dentro de Mensagem!" />
	
	<ImageView
		android:layout_width="fill_parent" android:layout_height="wrap_content"
		android:src="@drawable/smile1" />
	
	<View 
	 android:layout_height="2dip" android:layout_width="fill_parent" 
	 android:background="#FF909090" />
 
</LinearLayout>
Listagem 3. ExemploToast.java
package com.pdm.aula07bex1;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;
public class ExemploToast extends Activity implements OnClickListener{
	Button bSair,bRepetir; 
	
	Toast toast;
	
	@Override
	public void onCreate(Bundle icicle) {
		super.onCreate(icicle);
		setContentView(R.layout.exemplo_toast);
		
	 bSair = (Button) this.findViewById(R.id.buttonSair);
		bSair.setOnClickListener(this); 	 
	 bRepetir = (Button) this.findViewById(R.id.buttonRepetir);
		bRepetir.setOnClickListener(this); 	 
//		Toast toast = Toast.makeText(this, "Teste de Mensagem", Toast.LENGTH_SHORT);
//		toast.show();
		View tv = getView();
		this.toast = new Toast(this);
		this.toast.setView(tv);
		this.toast.setDuration(Toast.LENGTH_LONG);
		this.toast.show();
	}
	
	private View getView() {
		//View view = new TextView(this);
		//view.setText("Podemos mostrar qualquer coisa no Toast");
		//Abrir uma View a partir de um xml
		LayoutInflater inflate = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
		View view = inflate.inflate(R.layout.exemplo_toast_view_inflate, null);
		//ImageView view = new ImageView(this);
		//view.setImageResource(R.drawable.smile1);
		return view;
	}
	
	public void onClick(View v){
		if (v.getId() == bSair.getId()){
			finish();
		}	
		if (v.getId() == bRepetir.getId()){
			this.toast.show();
		}	
		
	}
		 
}
Listagem 4. Aula07BActivity.java
package com.pdm.aula07bex1;
import com.pdm.aula07bex1.R;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class Aula7BActivity extends Activity implements OnClickListener{
 /** Called when the activity is first created. */
	Button b1,b2,b3,b4,b5,b6,b7;
	
	@Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 b1 = (Button) this.findViewById(R.id.buttonImageImageButton);
 b1.setOnClickListener(this);
 b2 = (Button) this.findViewById(R.id.buttonAlertDialog);
 b2.setOnClickListener(this);
 b3 = (Button) this.findViewById(R.id.buttonToast);
 b3.setOnClickListener(this); 
 b4 = (Button) this.findViewById(R.id.buttonListView);
 b4.setOnClickListener(this); 
 b5 = (Button) this.findViewById(R.id.buttonAutoComplete);
 b5.setOnClickListener(this); 
 b6 = (Button) this.findViewById(R.id.buttonSpinner);
 b6.setOnClickListener(this); 
 b7 = (Button) this.findViewById(R.id.buttonProgressDialog);
 b7.setOnClickListener(this); 
 }
	
	public void onClick(View v){
		
		
		if (v.getId() == b3.getId()){
			startActivity(new Intent(this, ExemploToast.class));
		}		
		
		
	}
}
	
Listagem 5. AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
 package="com.pdm.veiculo"
 android:versionCode="1"
 android:versionName="1.0">
 <uses-sdk android:minSdkVersion="8" />
 <application
 android:icon="@drawable/ic_launcher"
 android:label="@string/app_name" >
 <activity
 android:name=".Aula7BActivity"
 android:label="@string/app_name" >
 <intent-filter>
 <action android:name="android.intent.action.MAIN" />
 <category android:name="android.intent.category.LAUNCHER" />
 </intent-filter>
 </activity>
 <activity android:name=".ExemploAutoCompleteTextView"></activity>
 <activity android:name=".ExemploImageImageButton"></activity>
 <activity android:name=".ExemploAlertDialog"></activity>
 <activity android:name=".ExemploToast"></activity>
<!-- Atenção - ACRESCENTAR A MEDIDA QUE FOR CODIFICANDO CADA VIEW --> 
 <activity android:name=".ExemploListView"></activity>
 <activity android:name=".ExemploSpinner"></activity>
 <activity android:name=".ExemploProgressDialog"></activity>
 </application>
</manifest>
	
	 
		
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