只要直接把 Uri 帶進 Intent 啟動就可以了，
但是如果要用到 Post 來傳送資料的話，
可以使用以下這個方法。
String html = getPayHtml(); //取得要傳送的POST資料
String dataUri = "data:text/html," + URLEncoder.encode(html).replaceAll("\\+","%20");
Intent i = new Intent();
i.setComponent(new ComponentName("com.android.browser", "com.android.browser.BrowserActivity"));
i.setAction(Intent.ACTION_VIEW);
i.setData(Uri.parse(dataUri));
startActivity(i);
getPayHtml() 這個funtion是讀取要 Post 的 Form，網頁放在 res/raw 下面
private String getPayHtml() {
String html = readTrimRawTextFile(this, R.raw.round);
return html;
}
private static String readTrimRawTextFile(Context ctx, int resId) {
InputStream inputStream = ctx.getResources().openRawResource(resId);
InputStreamReader inputreader = new InputStreamReader(inputStream);
BufferedReader buffreader = new BufferedReader(inputreader);
String line;
StringBuilder text = new StringBuilder();
try {
while ((line = buffreader.readLine()) != null) {
text.append(line.trim());
}
}
catch (IOException e) {
return null;
}
return text.toString();
}
來看一下 round.html 寫了什麼？postUrl是要傳送的目標網址，
name 和 value 改成要傳送的值。
<html>
<body onLoad="document.getElementById('form').submit()">
<form id="form" target="_self" method="POST" action="postUrl">
<input type="hidden" name="howgo" value="2" />
<input type="hidden" name="id2" value="" />
<input type="hidden" name="go2sn" value="" />
<input type="hidden" name="id3" value="" />
<input type="hidden" name="go3sn" value="" />
</form>
</body>
</html>
但是有些手機會發生找不到預設瀏覽器的問題，所以 Intent 可以改成這樣：
String html = getPayHtml(); //取得要傳送的POST資料
String dataUri = "data:text/html," + URLEncoder.encode(html).replaceAll("\\+","%20");
Intent i = new Intent();
i.setComponent(getDefaultBrowserComponent(this)); //找出預設的瀏覽器
i.setAction(Intent.ACTION_VIEW);
i.setData(Uri.parse(dataUri));
startActivity(i);
public static ComponentName getDefaultBrowserComponent(Context context) {
Intent i = new Intent()
.setAction(Intent.ACTION_VIEW)
.setData(new Uri.Builder()
.scheme("http")
.authority("x.y.z")
.appendQueryParameter("q", "x")
.build()
);
PackageManager pm = context.getPackageManager();
ResolveInfo default_ri = pm.resolveActivity(i, 0); // may be a chooser
ResolveInfo browser_ri = null;
List rList = pm.queryIntentActivities(i, 0);
for (ResolveInfo ri : rList) {
if (ri.activityInfo.packageName.equals(default_ri.activityInfo.packageName)
&& ri.activityInfo.name.equals(default_ri.activityInfo.name)
) {
return ri2cn(default_ri);
} else if ("com.android.browser".equals(ri.activityInfo.packageName)) {
browser_ri = ri;
}
}
if (browser_ri != null) {
return ri2cn(browser_ri);
} else if (rList.size() > 0) {
return ri2cn(rList.get(0));
} else if (default_ri == null) {
return null;
} else {
return ri2cn(default_ri);
}
}
private static ComponentName ri2cn(ResolveInfo ri) {
return new ComponentName(ri.activityInfo.packageName, ri.activityInfo.name);
}
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