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[英]How To Stop FrameAnimation And launch a new Activity ??(Intent)
[英]How to I launch an activity with an Intent and pass a variable in the new activity?
所以现在我在我的应用程序中使用zxing条形码扫描仪。 这是示例代码(通用):
if(position == 0){
Intent intent = new Intent("com.google.zxing.client.android.SCAN");
intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
startActivityForResult(intent, 0);
}
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == 0) {
if (resultCode == RESULT_OK) {
contents = intent.getStringExtra("SCAN_RESULT");
format = intent.getStringExtra("SCAN_RESULT_FORMAT");
// Handle successful scan
Intent i = new Intent(Main.this, BarcodeScanner.class);
startActivity(i);
} else if (resultCode == RESULT_CANCELED) {
// Handle cancel
}
}
}
因此,在启动BarcodeScanner.class
,我还想将contents
传递给它。 我该怎么做呢?
在意图内使用Bundle将数据从一个活动传递到另一个活动。 在你的情况下,你必须做类似的事情 -
Intent intent = new Intent(Main.this,BarcodeScanner.class);
//load the intent with a key "content" and assign it's value to content
intent.putExtra("content",contents);
//launch the BarcodeScanner activity and send the intent along with it
//note that content is passed in as well
startActivity(intent);
信息存储在Intent内部的“Bundle”对象中 - 当您调用Intent对象的putExtras()方法时会创建Bundle
将"SCAN_MODE"
传递给另一个活动的方法与调用startActivity()
之前调用putExtra("some key", contents)
startActivity()
,然后在BarcodeScanner中调用this.getIntent this.getIntent().getStringExtra("some key")
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