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我知道这已被问到,但我有不同的设置。创建数据库时的进度条
我的SQLite数据库:
private void SetUpLibrary() {
ArrayList<String> results = new ArrayList<String>();
//Declare SQLiteDatabase object
SQLiteDatabase sampleDB = null;
try {
//Instantiate sampleDB object
sampleDB = this.openOrCreateDatabase(db.dbname, MODE_PRIVATE, null);
//Create table using execSQL
try{
//add table
sampleDB.execSQL("CREATE TABLE " + db.tblnames[0]+ " (disease_no INTEGER, disease_name VARCHAR, disease_desc VARCHAR, disease_symptoms VARCHAR, disease_control VARCHAR);");
Toast.makeText(getApplicationContext(), "Application library has been set successfully!", Toast.LENGTH_LONG).show();
}catch (SQLiteException se) {
}
} catch (SQLiteException se) {
Toast.makeText(getApplicationContext(), "Couldn't create or open the database", Toast.LENGTH_LONG).show();
}
}
我的进度条:
progressBar = (ProgressBar) findViewById(R.id.progressBar1);
// Start long running operation in a background thread
new Thread(new Runnable() {
public void run() {
while (progressStatus < 30) {
progressStatus += 1;
// Update the progress bar and display the
//current value in the text view
handler.post(new Runnable() {
public void run() {
progressBar.setProgress(progressStatus);
// textView.setText(progressStatus+"/"+progressBar.getMax());
}
});
try {
// Sleep for 200 milliseconds.
//Just to display the progress slowly
Thread.sleep(200);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
而这里的XML:
<ProgressBar
android:id="@+id/progressBar1"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/bStart"
android:layout_centerHorizontal="true"
android:layout_marginTop="42dp"
android:indeterminate="false"
android:max="30"
android:minHeight="50dp"
android:minWidth="200dp"
android:progress="1" />
我想问问如何使进度条的工作,同时设置建立SQLite数据库。我尝试了一些建议,但没有一个能够奏效。
请不要再使用max 30 0到100,所以你可以处理完成百分比。那就是除非你在九月,四月,六月和十一月有一些实际值为30的东西。 – danny117 2014-12-04 20:06:32
究竟你有什么问题?进度条上看不到进展情况?提供一些你在'handler.post(new Runnable(){...}'中使用的处理程序的详细信息。 – 2014-12-04 20:06:38
@ danny117:是的,对不起,它应该是100. – 2014-12-07 18:54:35