Android Uygulama İnternet Tarayıcısı yapma

[S C O]

Proje internet tarayıcısı yapmak oldu.
Öncelikle webView hakkında bilginiz yoksa basit bir konu anlatımı için tıklayın.

Şimdi basit bir tarayıcı yapacağız. Öncelikle tasarımını halledelim.

Resim ve Kodlar'ı takip ediniz.

Kod:

<RelativeLayout xmlns:android="//schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#E0E0D1" >


<LinearLayout
android:id="@+id/iki"
android:layout_width="match_parent"
android:layout_height="wrap_content" >

<TextView
android:id="@+id/textViewURL"
android:layout_width="50dp"
android:layout_height="wrap_content"
android:layout_weight="1"
androidaddingLeft="13dp"
android:textColor="#000"
android:text="URL" />

<EditText
android:id="@+id/URL"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10" >
</EditText>

<Button
android:id="@+id/Git"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Git" />
</LinearLayout>


<WebView
android:id="@+id/webV"
android:layout_width="fill_parent"
android:layout_height="850dp"
android:layout_below="@id/iki" />

<LinearLayout
android:id="@+id/bir"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="3"
android:layout_below="@+id/webV"
>

<Button
android:id="@+id/Geri"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Geri" />

<Button
android:id="@+id/Anasayfa"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Anasayfa" />

<Button
android:id="@+id/Ileri"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Ileri"
/>
</LinearLayout>

Şimdi Java kodlarına başlayacağız :

Yinelenen Kodlar ;

Kod:
package com.example.myapplication;

import android.app.AlertDialog;
import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.webkit.WebChromeClient;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;


public class MainActivity extends ActionBarActivity {
Button Geri,Ileri, Anasayfa, Git;
WebView webV;
EditText URL;
Override

public **** onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);
webV = (WebView) findViewById(R.id.webV);
webV.getSettings().setJavaScriptEnabled(true);
webV.setWebViewClient(new MyWebViewClient());
webV.loadUrl("//www.google.com.tr");
URL = (EditText) findViewById(R.id.URL);

Geri = (Button) findViewById(R.id.Geri);
Ileri = (Button) findViewById(R.id.Ileri);
Anasayfa = (Button) findViewById(R.id.Anasayfa);
Git = (Button) findViewById(R.id.Git);

Git.setOnClickListener(new View.OnClickListener() {
Override
public **** onClick(View arg0) {
if (URL.getText().toString().length() > 10) {
Toast.makeText(
getApplicationContext(),
URL.getText().toString()
+ " adresi yükleniyor...",
Toast.LENGTH_SHORT).show();

if (InternetKontrol())
webV.loadUrl("//"+URL.getText().toString());
else
BaglantiHatasiVer();
} else {
Toast.makeText(getApplicationContext(), "Geçersiz Adres",
Toast.LENGTH_SHORT).show();
}
}
});

Anasayfa.setOnClickListener(new View.OnClickListener() {
Override
public **** onClick(View arg0) {
if (InternetKontrol())
webV.loadUrl("//www.google.com.tr");
else
BaglantiHatasiVer();
}
});


Geri.setOnClickListener(new View.OnClickListener() {
Override
public **** onClick(View arg0) {
if (webV.canGoBack()) {
webV.goBack();
}
}
});

Ileri.setOnClickListener(new View.OnClickListener() {
Override
public **** onClick(View arg0) {
if (webV.canGoForward()) {
webV.goForward();
}
}
});

}
private class MyWebViewClient extends WebViewClient {
Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
public **** BaglantiHatasiVer() {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
MainActivity.this);
alertDialogBuilder.setTitle("Sunucu Hatası");
alertDialogBuilder.setMessage(
"internet bağlantınızı kontrol edip tekrar deneyin")
.setCancelable(true);
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}

public boolean InternetKontrol() {
ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
if (manager.getActiveNetworkInfo() != null
&& manager.getActiveNetworkInfo().isAvailable()
&& manager.getActiveNetworkInfo().isConnected()) {
return true;
} else {
return false;
}
}
Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}

Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();

//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}

return super.onOptionsItemSelected(item);
}
}
Ve son olarak Manifest dosyasına da 2 tane izin ekliyoruz.
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/