Zoom in WebView

1package de.Rocky;
2
3import android.app.*;
4import android.os.*;
5import android.view.*;
6import android.webkit.*;
7import android.widget.*;
8import android.content.*;
9
10public class Rocky extends Activity {
11 private static final int AKTUALISIEREN = 0;
12 private static final int MAILSENDEN = 1;
13 private static final int HOME = 2;
14 private static final int FORUM =3;
15 private static final int STATISTIK = 4;
16 private static final int BEENDEN = 5;
17 private WebView webview;
18 /** Called when the activity is first created. */
19 @Override
20 public void onCreate(Bundle savedInstanceState) {
21 super.onCreate(savedInstanceState);
22
23 //Anzeigen
24 webview.getZoomControls();
25 webview.invokeZoomPicker();
26 webview.zoomIn();
27 webview.zoomOut();
28 //Anzeigen
29
30 //ProgressBar
31 getWindow().requestFeature(Window.FEATURE_PROGRESS);
32
33 webview = new WebView(this);
34 setContentView(webview);
35 webview.getSettings().setJavaScriptEnabled(true);
36
37 final Activity activity = this;
38 webview.setWebChromeClient(new WebChromeClient() {
39 public void onProgressChanged(WebView view, int progress) {
40 activity.setProgress(progress * 100);
41 }
42 });
43
44 webview.setWebViewClient(new WebViewClient() {
45 public void onReceivedError(WebView view, int errorCode,
46String description, String failingUrl) {
47 Toast.makeText(activity,description,
48Toast.LENGTH_SHORT).show();
49 }
50 }); //ProgressBar
51
52 webview.loadUrl("URL");
53 }
54
55 //Züruck Button
56 @Override
57 public boolean onKeyDown(int keyCode, KeyEvent event) {
58 if ((keyCode == KeyEvent.KEYCODE_BACK) && webview.canGoBack()) {
59 webview.goBack();
60 return true;
61 }
62 return super.onKeyDown(keyCode, event);
63 } //Zurück Button
64
65 //Menü
66 public boolean onCreateOptionsMenu(Menu menu) {
67 boolean result = super.onCreateOptionsMenu(menu);
68 menu.add(0, AKTUALISIEREN, 0, "Aktualisieren").setIcon(R.drawable.ic_menu_refresh);
69 SubMenu LinksMenu = menu.addSubMenu("Links").setIcon(android.R.drawable.ic_input_get);
70 LinksMenu.add(0, HOME, 0, "Home");
71 LinksMenu.add(0, FORUM, 0, "Forum");
72 LinksMenu.add(0, STATISTIK, 0, "Statistik");
73 menu.add(0, MAILSENDEN, 0, "Mail senden").setIcon(R.drawable.ic_menu_compose);
74 menu.add(0, BEENDEN, 0, "Beenden").setIcon(android.R.drawable.ic_menu_close_clear_cancel);
75 return result;
76 } //Menü
77
78 //Menü Aktionen
79 public boolean onOptionsItemSelected(MenuItem item) {
80 switch (item.getItemId()) {
81 case AKTUALISIEREN:
82 webview.reload();
83 break;
84 case MAILSENDEN:
85 Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);
86 String[] recipients = new String[]{"MALADRESSE", "",};
87 emailIntent.putExtra(android.content.Intent.EXTRA_EMAIL, recipients);
88 emailIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "BETREFF");
89 emailIntent.putExtra(android.content.Intent.EXTRA_TEXT, "");
90 emailIntent.setType("text/plain");
91 startActivity(Intent.createChooser(emailIntent, "Aktion durchführen mit:"));
92 break;
93 case HOME:
94 webview.loadUrl("URL");
95 break;
96 case FORUM:
97 webview.loadUrl("URL");
98 break;
99 case STATISTIK:
100 webview.loadUrl("URL");
101 break;
102 case BEENDEN:
103 System.exit(0);
104 break;
105 }
106 return false;
107 } //Menü Aktionen
108}

1<?xml version="1.0" encoding="utf-8"?>
2<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 android:orientation="vertical"
4 android:layout_width="fill_parent"
5 android:layout_height="fill_parent"
6 >
7<WebView
8 android:id="@+id/View"
9 android:layout_width="fill_parent"
10 android:layout_height="fill_parent"
11 />
12 <ZoomControls android:id="@+id/ZoomControls01" android:layout_width="wrap_content" android:layout_height="wrap_content"></ZoomControls>
13 <ZoomButton android:id="@+id/ZoomButton01" android:layout_width="wrap_content" android:layout_height="wrap_content"></ZoomButton>
14
15</LinearLayout>

1webview.zoomIn();
2webview.zoomOut();