簡單的進度條，水平進度條（二）

1.  ProgessActivityDemo.java

public class ProgressActivityDemo extends AppCompatActivity {
    private Button progressButton = null;
    private static final int MAX_PROGRESS = 100;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_progress_activity_demo);
        this.progressButton = (Button)findViewById(R.id.internet_button);
        this.progressButton.setOnClickListener(new OnClickListenerImpl());
    }

    private class OnClickListenerImpl implements View.OnClickListener {
        @Override
        public void onClick(View v) {
            final ProgressDialog progressDialog = new ProgressDialog(ProgressActivityDemo.this);
            progressDialog.setTitle("search internet");//對話框顯示標題
            progressDialog.setMessage("please waitting...");   //對話框顯示文字
            progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);   //水平進度條
            progressDialog.setMax(MAX_PROGRESS) ;   //設置最大進度值
            progressDialog.setProgress(30);  //開始點
            progressDialog.setButton("後臺處理", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    progressDialog.dismiss();             //關閉對話框
                }
            });
            progressDialog.setButton2("詳細信息", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                }
            });
            progressDialog.onStart();   // 啓動進度條
            new Thread() {  //線程對象
                @Override
                public void run() {
                    for(int x = 0;x<MAX_PROGRESS;x++) {
                        try {
                            Thread.sleep(500);     // 休眠0.5秒
                        } catch (InterruptedException e) {
                        }
                        progressDialog.incrementProgressBy(1);   //進度條每次增加1
                    }
                    progressDialog.dismiss();  //關閉對話框
                }
            }.start();   //啓動線程
            progressDialog.show();   //顯示對話框
        }
    }
}

2.activity_progress_activity_demo.xml

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="find internet connection"
    android:id="@+id/internet_button"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:layout_marginTop="76dp" />