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JSON Array iteration in Android/Java
I am building an android app that needs to download and synchronise with an online database, I am sending my query from the app to a php page which returns the relevant rows from a database in JSON format.
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Disable ScrollView Programmatically?
...to do with the ScrollView, you can change how an ImageView scales with the android:scaleType property (XML) or the setScaleType method - for instance ScaleType.CENTER will not stretch your image and will center it at it's original size
You could modify ScrollView as follows to disable scrolling
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Android - how do I investigate an ANR?
...ce in the "main" thread. This is the event loop thread, and if it is busy, Android cannot process any further GUI events in the application, and thus throws up an ANR dialog.
Now, in the trace you posted, the main thread seems to be doing fine, there is no problem. It is idling in the MessageQueue,...
Dialog to pick image from gallery or from camera
...rom gallery:
Intent pickPhoto = new Intent(Intent.ACTION_PICK,
android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(pickPhoto , 1);//one can be replaced with any action code
onActivityResult code:
protected void onActivityResult(int requestCode, int r...
SVG图像加载扩展 - 第三方扩展集合 · App Inventor 2 中文网
...: 移除不必要的代码和注释
测试兼容性: 确保SVG在不同Android版本上正常显示
文件路径示例
资源文件: "file:///android_asset/icon.svg"
外部存储: "/storage/emulated/0/Documents/icon.svg"
网络URL: "https://example.com/icon.svg"
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Converting a string to an integer on Android
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See the Integer class and the static parseInt() method:
http://developer.android.com/reference/java/lang/Integer.html
Integer.parseInt(et.getText().toString());
You will need to catch NumberFormatException though in case of problems whilst parsing, so:
int myNum = 0;
try {
myNum = Integer...
Get boolean from database using Android and SQLite
How can I obtain the value of a boolean field in an SQLite database on Android?
10 Answers
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How can I generate random number in specific range in Android? [duplicate]
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How to print a double with two decimals in Android? [duplicate]
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Android - Round to 2 decimal places [duplicate]
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